81 FR 45072 - Airworthiness Directives; Saab AB, Saab Aeronautics (Formerly Known as Saab AB, Saab Aerosystems) Airplanes
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration Federal Register Volume 81, Issue 133 (July 12, 2016)
Federal Aviation Administration
Federal Register Volume 81, Issue 133 (July 12, 2016)
| Page Range | 45072-45075 | |
| FR Document | 2016-15927 |
[Federal Register Volume 81, Number 133 (Tuesday, July 12, 2016)] [Proposed Rules] [Pages 45072-45075] From the Federal Register Online [www.thefederalregister.org] [FR Doc No: 2016-15927] ----------------------------------------------------------------------- DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA-2015-6544; Directorate Identifier 2014-NM-198-AD] RIN 2120-AA64 Airworthiness Directives; Saab AB, Saab Aeronautics (Formerly Known as Saab AB, Saab Aerosystems) Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Supplemental notice of proposed rulemaking (NPRM); reopening of comment period. ----------------------------------------------------------------------- SUMMARY: We are revising an earlier proposed airworthiness directive (AD) for certain Saab AB, Saab Aeronautics Model 340A (SAAB/SF340A) and SAAB 340B airplanes. The NPRM proposed to supersede AD 2012-24-06. AD 2012-24-06 currently requires replacing the stall warning computer (SWC) with a new SWC that provides an artificial stall warning in icing conditions, and modifying the airplane for the replacement of the SWC. The NPRM was prompted by a determination that airplanes with certain modifications were excluded from the applicability in AD 2012-24-06, and are affected by the identified unsafe condition; and the SWC required by AD 2012-24-06 contained erroneous logic. This action revises the NPRM by reducing the compliance time for replacing the SWCs. We are proposing this supplemental NPRM (SNPRM) to prevent natural stall events during operation in icing conditions, which could result in loss of control of the airplane. Since this compliance time reduction imposes an additional burden to operators, we are reopening the comment period to allow the public the chance to comment on these proposed changes. DATES: We must receive comments on this SNPRM by August 26, 2016. ADDRESSES: You may send comments, using the procedures found in 14 CFR 11.43 and 11.45, by any of the following methods:Federal eRulemaking Portal: Go to http://www.regulations.gov. Follow the instructions for submitting comments. Fax: 202-493-2251. Mail: U.S. Department of Transportation, Docket Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New Jersey Avenue SE., Washington, DC 20590. Hand Delivery: U.S. Department of Transportation, Docket Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New Jersey Avenue SE., Washington, DC, between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. For service information identified in this SNPRM, contact Saab AB, Saab Aeronautics, SE-581 88, Link[ouml]ping, Sweden; telephone +46 13 18 5591; fax +46 13 18 4874; email [email protected]; Internet http://www.saabgroup.com. You may view this referenced service information at the FAA, Transport Airplane Directorate, 1601 Lind Avenue SW., Renton, WA. For information on the availability of this material at the FAA, call 425-227-1221. Examining the AD Docket You may examine the AD docket on the Internet at http://www.regulations.gov by searching for and locating Docket No. FAA-2015- 6544; or in person at the Docket Management Facility between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. The AD docket contains this proposed AD, the regulatory evaluation, any comments received, and other information. The street address for the Docket Office (telephone: 800-647-5527) is in the ADDRESSES section. Comments will be available in the AD docket shortly after receipt. FOR FURTHER INFORMATION CONTACT: Shahram Daneshmandi, Aerospace Engineer, International Branch, ANM-116, Transport Airplane Directorate, FAA, 1601 Lind Avenue SW., Renton, WA 98057-3356; telephone 425-227-1112; fax 425-227-1149. SUPPLEMENTARY INFORMATION: Comments Invited We invite you to send any written relevant data, views, or arguments about this proposed AD. Send your comments [[Page 45073]] to an address listed under the ADDRESSES section. Include ``Docket No. FAA-2015-6544; Directorate Identifier 2014-NM-198-AD'' at the beginning of your comments. We specifically invite comments on the overall regulatory, economic, environmental, and energy aspects of this proposed AD. We will consider all comments received by the closing date and may amend this proposed AD based on those comments. We will post all comments we receive, without change, to http://www.regulations.gov, including any personal information you provide. We will also post a report summarizing each substantive verbal contact we receive about this proposed AD. Discussion We issued a notice of proposed rulemaking (NPRM) to amend 14 CFR part 39 by adding an AD that would apply to certain Saab AB, Saab Aeronautics Model 340A (SAAB/SF340A) and SAAB 340B airplanes. The NPRM published in the Federal Register on December 17, 2015 (80 FR 78699) (``the NPRM''). The NPRM proposed to supersede AD 2012-24-06, Amendment 39-17276 (77 FR 73279, December 10, 2012) (``AD 2012-24-06''). AD 2012- 24-06 currently requires replacing the SWC with a new SWC that provides an artificial stall warning in icing conditions, and modifying the airplane for the replacement of the SWC. The NPRM was prompted by a determination that airplanes with certain modifications were excluded from the applicability in AD 2012-24-06, and are affected by the identified unsafe condition; and the SWC required by AD 2012-24-06 contained erroneous logic. The NPRM proposed to add airplanes to the applicability, and would add requirements to replace the existing SWCs with new, improved SWCs and modify the airplane for the new replacement of the SWC. Actions Since Previous NPRM Was Issued Since we issued the NPRM, we have determined that the compliance time for replacing the SWCs must be reduced to ensure the unsafe condition is addressed prior to the beginning of icing season after publication of the AD. We have determined that parts are available to support the reduced compliance time. The European Aviation Safety Agency (EASA), which is the Technical Agent for the Member States of the European Union, has issued EASA Airworthiness Directive 2014-0218, dated September 29, 2014 (referred to after this as the Mandatory Continuing Airworthiness Information, or ``the MCAI''), to correct an unsafe condition on certain Saab AB, Saab Aeronautics Model 340A (SAAB/SF340A) and SAAB 340B airplanes. The MCAI states: A few natural stall events, specifically when operating in icing conditions, have been experienced on SAAB 340 series aeroplanes, without receiving a prior stall warning. This condition, if not corrected, could result in loss of control of the aeroplane. To address this potential unsafe condition, SAAB developed a modified stall warning system, incorporating improved stall warning logic, and issued Service Bulletin (SB) 340-27-098 and SB 340-27- 099, providing instructions to replace the Stall Warning Computer (SWC) with a new SWC, and instructions to activate the new SWC. The new system included stall warning curves optimized for operation in icing conditions, which are activated by selection of Engine Anti- Ice. Consequently, EASA issued AD 2011-0219 [http://ad.easa.europa.eu/ad/2011-0219, which corresponds to FAA AD 2012-24- 06] to require installation of the improved SWC. After that [EASA] AD was issued, in-service experience with the improved stall warning system revealed cases of premature stall warning activation during the take-off phase. In numerous recorded cases, the onset of stall warning occurred without the 6 minute delay after weight off wheels. This condition, if not corrected, could lead to premature stick shaker activation and consequent increase in pilot workload during the take-off phase, possibly resulting in reduced control of the aeroplane. To correct this unsafe condition, EASA issued AD 2013-0254 [http://ad.easa.europa.eu/ad/2013-0254] retaining the requirements of EASA AD 2011-0219, which was superseded, to require deactivation of the ice speed curves in the improved SWC on SAAB 340 aeroplanes, in accordance with SAAB SB 340-27-116. Since EASA AD 2013-0254 was issued, SAAB developed a technical solution to eliminate the premature activation of the stall warning ice curves and issued SB 340-27-120 (modification of the existing Stall Warning System installation), SB 340-27-121 (activation of improved SWC for aeroplanes with a basic wing tip) and SB 340-27-122 (activation of improved SWC for aeroplanes with an extended wing tip). SAAB SB 340-27-120 provides modification and installation instructions valid for pre- and post-SB 340-27-097, 340-27-098, SB 340-27-099 and SB 340-27-116 aeroplanes. For aeroplanes modified in accordance with SAAB AB mod. No. 2650 and/or mod. No. 2859 which are no longer registered in Canada, SAAB AB issued SAAB AB SB 340-27-109 to provide modification and installation instructions to remove the ice speed curve function. For the reasons described above, this [EASA] AD retains the requirements of EASA AD 2013-0254, which is superseded, and requires modification of the Stall Warning and Identification System and replacement of the SWC with an improved unit. You may examine the MCAI in the AD docket on the Internet at http://www.regulations.gov by searching for and locating Docket No. FAA-2015- 6544. Related Service Information Under 1 CFR Part 51 Saab AB, Saab Aeronautics has issued the following service information: Saab Service Bulletin 340-27-109, dated April 14, 2014. Saab Service Bulletin 340-27-116, dated October 18, 2013. Saab Service Bulletin 340-27-120, dated July 11, 2014. Saab Service Bulletin 340-27-121, dated July 11, 2014. Saab Service Bulletin 340-27-122, dated July 11, 2014. The service information describes procedures for deactivating the stall warning speed curves in the SWCs for certain airplanes; replacing the existing SWCs with new, improved SWCs; and modifying the airplane for the new replacement of the SWC. This service information is reasonably available because the interested parties have access to it through their normal course of business or by the means identified in the ADDRESSES section. Comments We gave the public the opportunity to participate in developing this proposed AD. We considered the comments received. Request To Reduce Compliance Time Saab asked that the compliance time in paragraph (h) of the proposed AD (in the NPRM) for replacement of the SWC be reduced from 12 to 3 months. Saab stated that a global alternative method of compliance (AMOC) was issued by the FAA on September 4, 2014, with a compliance time of 18 months; therefore, operators should have scheduled replacement of the SWCs after the AMOC was issued. Saab also stated that the MCAI required compliance within 18 months after September 29, 2014, and that time has expired. Saab added that reducing the compliance time to 3 months is more in line with the MCAI. In addition, Saab noted that all operators have ordered replacement SWCs, and Saab has those parts in stock and ready for delivery. We agree with the commenter's request to reduce the compliance time, for the reasons provided. We also note that reducing the compliance time will ensure that new SWCs are installed before the icing season begins. We have changed the compliance time in paragraph (h) of this proposed AD from 12 to 3 months accordingly. [[Page 45074]] Request To Correct Email Address Saab asked that the Saab email address in the proposed AD (in the NPRM) be corrected to specify the following: [email protected]. We agree with the commenter's request. The email address for Model SAAB 2000 airplanes was inadvertently cited in the NPRM. We have corrected the address in the ADDRESSES section and in paragraph (l)(2) of this proposed AD. Request To Use Later Revisions of Service Information Silver Airways asked if we could include subsequent revisions of the referenced service information for AD 2012-24-06. We do not agree with the commenter's request because this proposed AD does not require the service information referenced in AD 2012-24- 06. This proposed AD does refer to the latest available service information for the proposed actions. Referring to a specific service bulletin in an AD and using the phrase ``or later FAA-approved revisions'' violates Office of the Federal Register regulations for approving materials that are incorporated by reference. However, operators may request approval to use a later revision of the referenced service information as an AMOC under the provisions of paragraph (k)(1) of this proposed AD. We have not changed this final rule regarding this issue. FAA's Determination and Requirements of This SNPRM This product has been approved by the aviation authority of another country, and is approved for operation in the United States. Pursuant to our bilateral agreement with the State of Design Authority, we have been notified of the unsafe condition described in the MCAI and service information referenced above. We are proposing this AD because we evaluated all pertinent information and determined an unsafe condition exists and is likely to exist or develop on other products of these same type designs. Certain changes described above expand the scope of the NPRM. As a result, we have determined that it is necessary to reopen the comment period to provide additional opportunity for the public to comment on this SNPRM. Costs of Compliance We estimate that this SNPRM affects 105 airplanes of U.S. registry. The actions that are required by AD 2012-24-06, and retained in this SNPRM, take about 78 work-hours per product, at an average labor rate of $85 per work-hour. Required parts cost about $33,000 per product. Based on these figures, the estimated cost of the actions that are required by AD 2012-24-06 is $39,630 per product. The new requirement of this SNPRM adds no additional economic burden. Authority for This Rulemaking Title 49 of the United States Code specifies the FAA's authority to issue rules on aviation safety. Subtitle I, section 106, describes the authority of the FAA Administrator. ``Subtitle VII: Aviation Programs,'' describes in more detail the scope of the Agency's authority. We are issuing this rulemaking under the authority described in ``Subtitle VII, Part A, Subpart III, Section 44701: General requirements.'' Under that section, Congress charges the FAA with promoting safe flight of civil aircraft in air commerce by prescribing regulations for practices, methods, and procedures the Administrator finds necessary for safety in air commerce. This regulation is within the scope of that authority because it addresses an unsafe condition that is likely to exist or develop on products identified in this rulemaking action. Regulatory Findings We determined that this proposed AD would not have federalism implications under Executive Order 13132. This proposed AD would not have a substantial direct effect on the States, on the relationship between the national Government and the States, or on the distribution of power and responsibilities among the various levels of government. For the reasons discussed above, I certify this proposed regulation: 1. Is not a ``significant regulatory action'' under Executive Order 12866; 2. Is not a ``significant rule'' under the DOT Regulatory Policies and Procedures (44 FR 11034, February 26, 1979); 3. Will not affect intrastate aviation in Alaska; and 4. Will not have a significant economic impact, positive or negative, on a substantial number of small entities under the criteria of the Regulatory Flexibility Act. List of Subjects in 14 CFR Part 39 Air transportation, Aircraft, Aviation safety, Incorporation by reference, Safety. The Proposed Amendment Accordingly, under the authority delegated to me by the Administrator, the FAA proposes to amend 14 CFR part 39 as follows: PART 39--AIRWORTHINESS DIRECTIVES 0 1. The authority citation for part 39 continues to read as follows: Authority: 49 U.S.C. 106(g), 40113, 44701. Sec. 39.13 [Amended] 0 2. The FAA amends Sec. 39.13 by removing Airworthiness Directive (AD) 2012-24-06, Amendment 39-17276 (77 FR 73279, December 10, 2012), and adding the following new AD: Saab AB, Saab Aeronautics: Docket No. FAA-2015-6544; Directorate Identifier 2014-NM-198-AD. (a) Comments Due Date We must receive comments by August 26, 2016. (b) Affected ADs This AD replaces AD 2012-24-06, Amendment 39-17276 (77 FR 73279, December 10, 2012) (``AD 2012-24-06''). (c) Applicability This AD applies to Saab AB, Saab Aeronautics (formerly known as Saab AB, Saab Aerosystems) Model 340A (SAAB/SF340A) and SAAB 340B airplanes, certificated in any category, as identified in paragraphs (c)(1) and (c)(2) of this AD. (1) Model 340A (SAAB/SF340A) airplanes, serial numbers 004 through 159 inclusive. (2) Model SAAB 340B airplanes, serial numbers 160 through 459 inclusive, except serial numbers 170, 342, 362, 363, 367, 372, 379, 385, 395, 405, 409, 431, 441, and 455. (d) Subject Air Transport Association (ATA) of America Code 27, Flight Controls. (e) Reason This AD was prompted by a determination that airplanes with certain modifications were excluded from the applicability in AD 2012-24-06, and are affected by the identified unsafe condition; and the stall warning computer (SWC) required by AD 2012-24-06 contained erroneous logic. We are issuing this AD to prevent natural stall events during operation in icing conditions, which could result in loss of control of the airplane. (f) Compliance Comply with this AD within the compliance times specified, unless already done. (g) Deactivation of Stall Speed Curves For airplanes identified in paragraphs (g)(1) and (g)(2) of this AD: Within 30 days after the effective date of this AD, do the deactivation specified in paragraph (g)(1) or (g)(2) of this AD, as applicable to airplane configuration, in accordance with the Accomplishment Instructions of Saab Service Bulletin 340-27-116, dated October 18, 2013. (1) For airplanes with a basic wing tip that has been modified using Saab Service Bulletin 340-27-098: Deactivate the stall speed curves in the SWC having part number (P/N) 0020AK6. [[Page 45075]] (2) For airplanes with an extended wing tip that has been modified using Saab Service Bulletin 340-27-099: Deactivate the stall speed curves in the SWC having P/N 0020AK7. (h) Replacement of SWCs Within 3 months after the effective date of this AD: Do the replacement specified in paragraph (h)(1) or (h)(2) of this AD, as applicable. (1) For airplanes with basic wing tips: Replace all SWCs with new, improved SWCs having P/N 0020AK6-1, in accordance with the Accomplishment Instructions of Saab Service Bulletin 340-27-121, dated July 11, 2014. (2) For airplanes with extended wing tips: Replace all SWCs with new, improved SWCs having P/N 0020AK7-1, in accordance with the Accomplishment Instructions of Saab Service Bulletin 340-27-122, dated July 11, 2014. (i) Concurrent Modification Before or concurrently with the accomplishment of the applicable requirements of paragraph (h) of this AD, do the actions specified in paragraph (i)(1) or (i)(2) of this AD, as applicable to airplane configuration. (1) For airplanes on which either Saab AB Mod No. 2650 or Mod No. 2859 is not installed: Modify the stall warning and identification system, in accordance with the Accomplishment Instructions of Saab Service Bulletin 340-27-120, dated July 11, 2014. (2) For airplanes on which either Saab AB Mod No. 2650 or Mod No. 2859 is installed, or on which both mods are installed: Modify the stall warning and identification system, in accordance with the Accomplishment Instructions of Saab Service Bulletin 340-27-109, dated April 14, 2014. (j) Parts Installation Prohibitions After the replacement required by paragraph (h) of this AD, no person may install any SWC having P/N 0020AK, 0020AK1, 0020AK2, 0020AK4, 0020AK6, 0020AK7, or 0020AK3 MOD 1, on any airplane. (k) Other FAA AD Provisions The following provisions also apply to this AD: (1) Alternative Methods of Compliance (AMOCs): The Manager, International Branch, ANM-116, Transport Airplane Directorate, FAA, has the authority to approve AMOCs for this AD, if requested using the procedures found in 14 CFR 39.19. In accordance with 14 CFR 39.19, send your request to your principal inspector or local Flight Standards District Office, as appropriate. If sending information directly to the International Branch, send it to ATTN: Shahram Daneshmandi, Aerospace Engineer, International Branch, ANM-116, Transport Airplane Directorate, FAA, 1601 Lind Avenue SW., Renton, WA 98057-3356; telephone 425-227-1112; fax 425-227-1149. Information may be emailed to: [email protected]. Before using any approved AMOC, notify your appropriate principal inspector, or lacking a principal inspector, the manager of the local flight standards district office/certificate holding district office. The AMOC approval letter must specifically reference this AD. (2) Contacting the Manufacturer: For any requirement in this AD to obtain corrective actions from a manufacturer, the action must be accomplished using a method approved by the Manager, International Branch, ANM-116, Transport Airplane Directorate, FAA; or the European Aviation Safety Agency (EASA); or Saab AB, Saab Aeronautics' EASA Design Organization Approval (DOA). If approved by the DOA, the approval must include the DOA-authorized signature. (l) Related Information (1) Refer to Mandatory Continuing Airworthiness Information (MCAI) EASA Airworthiness Directive 2014-0218, dated September 29, 2014, for related information. This MCAI may be found in the AD docket on the Internet at http://www.regulations.gov by searching for and locating Docket No. FAA-2015-6544. (2) For service information identified in this AD, contact Saab AB, Saab Aeronautics, SE-581 88, Link[ouml]ping, Sweden; telephone +46 13 18 5591; fax +46 13 18 4874; email [email protected]; Internet http://www.saabgroup.com. You may view this service information at the FAA, Transport Airplane Directorate, 1601 Lind Avenue SW., Renton, WA. For information on the availability of this material at the FAA, call 425-227-1221. Issued in Renton, Washington, on June 23, 2016. Dorr M. Anderson, Acting Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. 2016-15927 Filed 7-11-16; 8:45 am] BILLING CODE 4910-13-P
![45072 Federal Register / Vol. 81, No. 133 / Tuesday, July 12, 2016 / Proposed Rules
Instructions of Boeing Alert Service Bulletin Airplanes, Attention: Data & Services chance to comment on these proposed
B787–81205–SB270032–00, Issue 001, dated Management, P.O. Box 3707, MC 2H–65, changes.
November 3, 2015. If any discrepant rotary Seattle, WA 98124–2207; telephone 206–
DATES: We must receive comments on
actuator is found, within 60 months after the 544–5000, extension 1; fax 206–766–5680;
effective date of this AD, do the actions Internet https://www.myboeingfleet.com. You this SNPRM by August 26, 2016.
specified in paragraph (g)(1) or (g)(2) of this may view this referenced service information ADDRESSES: You may send comments,
AD, in accordance with the Accomplishment at the FAA, Transport Airplane Directorate, using the procedures found in 14 CFR
Instructions of Boeing Alert Service Bulletin 1601 Lind Avenue SW., Renton, WA. For 11.43 and 11.45, by any of the following
B787–81205–SB270032–00, Issue 001, dated information on the availability of this methods:
November 3, 2015.
(1) Replace the discrepant rotary actuator.
material at the FAA, call 425–227–1221. • Federal eRulemaking Portal: Go to
Issued in Renton, Washington, on June 28, http://www.regulations.gov. Follow the
(2) Check the maintenance records to 2016.
determine the flight cycles of each discrepant instructions for submitting comments.
rotary actuator and, within 60 months after John P. Piccola, Jr., • Fax: 202–493–2251.
the effective date of this AD, do all applicable Acting Manager, Transport Airplane • Mail: U.S. Department of
related investigative and corrective actions. Directorate, Aircraft Certification Service. Transportation, Docket Operations, M–
(h) Alternative Methods of Compliance [FR Doc. 2016–16323 Filed 7–11–16; 8:45 am] 30, West Building Ground Floor, Room
(AMOCs) BILLING CODE 4910–13–P W12–140, 1200 New Jersey Avenue SE.,
(1) The Manager, Seattle Aircraft Washington, DC 20590.
Certification Office (ACO), FAA, has the • Hand Delivery: U.S. Department of
authority to approve AMOCs for this AD, if DEPARTMENT OF TRANSPORTATION Transportation, Docket Operations, M–
requested using the procedures found in 14 30, West Building Ground Floor, Room
CFR 39.19. In accordance with 14 CFR 39.19, Federal Aviation Administration W12–140, 1200 New Jersey Avenue SE.,
send your request to your principal inspector Washington, DC, between 9 a.m. and 5
or local Flight Standards District Office, as 14 CFR Part 39 p.m., Monday through Friday, except
appropriate. If sending information directly Federal holidays.
to the manager of the ACO, send it to the [Docket No. FAA–2015–6544; Directorate
attention of the person identified in Identifier 2014–NM–198–AD] For service information identified in
paragraph (i)(1) of this AD. Information may this SNPRM, contact Saab AB, Saab
RIN 2120–AA64 Aeronautics, SE–581 88, Linköping,
be emailed to: 9-ANM-Seattle-ACO-AMOC-
Requests@faa.gov. Sweden; telephone +46 13 18 5591; fax
(2) Before using any approved AMOC,
Airworthiness Directives; Saab AB, +46 13 18 4874; email
notify your appropriate principal inspector, Saab Aeronautics (Formerly Known as saab340.techsupport@saabgroup.com;
or lacking a principal inspector, the manager Saab AB, Saab Aerosystems) Internet http://www.saabgroup.com.
of the local flight standards district office/ Airplanes You may view this referenced service
certificate holding district office.
AGENCY: Federal Aviation information at the FAA, Transport
(3) An AMOC that provides an acceptable
level of safety may be used for any repair Administration (FAA), DOT. Airplane Directorate, 1601 Lind Avenue
required by this AD if it is approved by the ACTION: Supplemental notice of SW., Renton, WA. For information on
Boeing Commercial Airplanes Organization proposed rulemaking (NPRM); the availability of this material at the
Designation Authorization (ODA) that has reopening of comment period. FAA, call 425–227–1221.
been authorized by the Manager, Seattle ACO
to make those findings. For a repair method Examining the AD Docket
SUMMARY: We are revising an earlier
to be approved, the repair must meet the proposed airworthiness directive (AD) You may examine the AD docket on
certification basis of the airplane, and the the Internet at http://
approval must specifically refer to this AD. for certain Saab AB, Saab Aeronautics
Model 340A (SAAB/SF340A) and SAAB www.regulations.gov by searching for
(4) For service information that contains
steps that are labeled as Required for 340B airplanes. The NPRM proposed to and locating Docket No. FAA–2015–
Compliance (RC), the provisions of supersede AD 2012–24–06. AD 2012– 6544; or in person at the Docket
paragraphs (h)(4)(i) and (h)(4)(ii) of this AD 24–06 currently requires replacing the Management Facility between 9 a.m.
apply. stall warning computer (SWC) with a and 5 p.m., Monday through Friday,
(i) The steps labeled as RC, including new SWC that provides an artificial stall except Federal holidays. The AD docket
substeps under an RC step and any figures warning in icing conditions, and contains this proposed AD, the
identified in an RC step, must be done to regulatory evaluation, any comments
comply with the AD. An AMOC is required modifying the airplane for the
replacement of the SWC. The NPRM received, and other information. The
for any deviations to RC steps, including
substeps and identified figures. was prompted by a determination that street address for the Docket Office
(ii) Steps not labeled as RC may be airplanes with certain modifications (telephone: 800–647–5527) is in the
deviated from using accepted methods in were excluded from the applicability in ADDRESSES section. Comments will be
accordance with the operator’s maintenance AD 2012–24–06, and are affected by the available in the AD docket shortly after
or inspection program without obtaining identified unsafe condition; and the receipt.
approval of an AMOC, provided the RC steps, SWC required by AD 2012–24–06 FOR FURTHER INFORMATION CONTACT:
including substeps and identified figures, can
still be done as specified, and the airplane contained erroneous logic. This action Shahram Daneshmandi, Aerospace
can be put back in an airworthy condition. revises the NPRM by reducing the Engineer, International Branch, ANM–
compliance time for replacing the 116, Transport Airplane Directorate,
(i) Related Information SWCs. We are proposing this FAA, 1601 Lind Avenue SW., Renton,
mstockstill on DSK3G9T082PROD with PROPOSALS
(1) For more information about this AD, supplemental NPRM (SNPRM) to WA 98057–3356; telephone 425–227–
contact Fnu Winarto, Aerospace Engineer, prevent natural stall events during 1112; fax 425–227–1149.
Systems and Equipment Branch, ANM–130S, operation in icing conditions, which SUPPLEMENTARY INFORMATION:
FAA, Seattle ACO, 1601 Lind Avenue SW.,
Renton, WA 98057–3356; phone: 425–917–
could result in loss of control of the
airplane. Since this compliance time Comments Invited
6659; fax: 425–917–6590; email:
fnu.winarto@faa.gov. reduction imposes an additional burden We invite you to send any written
(2) For service information identified in to operators, we are reopening the relevant data, views, or arguments about
this AD, contact Boeing Commercial comment period to allow the public the this proposed AD. Send your comments
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![Federal Register / Vol. 81, No. 133 / Tuesday, July 12, 2016 / Proposed Rules 45073
to an address listed under the an unsafe condition on certain Saab AB, You may examine the MCAI in the
ADDRESSES section. Include ‘‘Docket No. Saab Aeronautics Model 340A (SAAB/ AD docket on the Internet at http://
FAA–2015–6544; Directorate Identifier SF340A) and SAAB 340B airplanes. The www.regulations.gov by searching for
2014–NM–198–AD’’ at the beginning of MCAI states: and locating Docket No. FAA–2015–
your comments. We specifically invite A few natural stall events, specifically 6544.
comments on the overall regulatory, when operating in icing conditions, have
economic, environmental, and energy Related Service Information Under 1
been experienced on SAAB 340 series CFR Part 51
aspects of this proposed AD. We will aeroplanes, without receiving a prior stall
consider all comments received by the warning. Saab AB, Saab Aeronautics has issued
closing date and may amend this This condition, if not corrected, could the following service information:
proposed AD based on those comments. result in loss of control of the aeroplane. • Saab Service Bulletin 340–27–109,
We will post all comments we To address this potential unsafe condition, dated April 14, 2014.
receive, without change, to http:// SAAB developed a modified stall warning • Saab Service Bulletin 340–27–116,
www.regulations.gov, including any system, incorporating improved stall warning dated October 18, 2013.
personal information you provide. We logic, and issued Service Bulletin (SB) 340– • Saab Service Bulletin 340–27–120,
will also post a report summarizing each 27–098 and SB 340–27–099, providing dated July 11, 2014.
instructions to replace the Stall Warning • Saab Service Bulletin 340–27–121,
substantive verbal contact we receive
Computer (SWC) with a new SWC, and
about this proposed AD. dated July 11, 2014.
instructions to activate the new SWC. The
• Saab Service Bulletin 340–27–122,
Discussion new system included stall warning curves
optimized for operation in icing conditions, dated July 11, 2014.
We issued a notice of proposed which are activated by selection of Engine The service information describes
rulemaking (NPRM) to amend 14 CFR Anti-Ice. procedures for deactivating the stall
part 39 by adding an AD that would Consequently, EASA issued AD 2011–0219 warning speed curves in the SWCs for
apply to certain Saab AB, Saab [http://ad.easa.europa.eu/ad/2011-0219, certain airplanes; replacing the existing
Aeronautics Model 340A (SAAB/ which corresponds to FAA AD 2012–24–06] SWCs with new, improved SWCs; and
SF340A) and SAAB 340B airplanes. The to require installation of the improved SWC. modifying the airplane for the new
NPRM published in the Federal After that [EASA] AD was issued, in- replacement of the SWC. This service
Register on December 17, 2015 (80 FR service experience with the improved stall information is reasonably available
78699) (‘‘the NPRM’’). The NPRM warning system revealed cases of premature because the interested parties have
stall warning activation during the take-off
proposed to supersede AD 2012–24–06, access to it through their normal course
phase. In numerous recorded cases, the onset
Amendment 39–17276 (77 FR 73279, of stall warning occurred without the 6 of business or by the means identified
December 10, 2012) (‘‘AD 2012–24– minute delay after weight off wheels. in the ADDRESSES section.
06’’). AD 2012–24–06 currently requires This condition, if not corrected, could lead
replacing the SWC with a new SWC that Comments
to premature stick shaker activation and
provides an artificial stall warning in consequent increase in pilot workload during We gave the public the opportunity to
icing conditions, and modifying the the take-off phase, possibly resulting in participate in developing this proposed
airplane for the replacement of the reduced control of the aeroplane. AD. We considered the comments
SWC. The NPRM was prompted by a To correct this unsafe condition, EASA received.
determination that airplanes with issued AD 2013–0254 [http://
ad.easa.europa.eu/ad/2013-0254] retaining Request To Reduce Compliance Time
certain modifications were excluded
the requirements of EASA AD 2011–0219, Saab asked that the compliance time
from the applicability in AD 2012–24– which was superseded, to require
06, and are affected by the identified in paragraph (h) of the proposed AD (in
deactivation of the ice speed curves in the
unsafe condition; and the SWC required the NPRM) for replacement of the SWC
improved SWC on SAAB 340 aeroplanes, in
by AD 2012–24–06 contained erroneous accordance with SAAB SB 340–27–116. be reduced from 12 to 3 months. Saab
logic. The NPRM proposed to add Since EASA AD 2013–0254 was issued, stated that a global alternative method
airplanes to the applicability, and SAAB developed a technical solution to of compliance (AMOC) was issued by
would add requirements to replace the eliminate the premature activation of the stall the FAA on September 4, 2014, with a
existing SWCs with new, improved warning ice curves and issued SB 340–27– compliance time of 18 months;
SWCs and modify the airplane for the 120 (modification of the existing Stall therefore, operators should have
Warning System installation), SB 340–27– scheduled replacement of the SWCs
new replacement of the SWC.
121 (activation of improved SWC for after the AMOC was issued. Saab also
Actions Since Previous NPRM Was aeroplanes with a basic wing tip) and SB stated that the MCAI required
Issued 340–27–122 (activation of improved SWC for
compliance within 18 months after
aeroplanes with an extended wing tip).
Since we issued the NPRM, we have SAAB SB 340–27–120 provides modification September 29, 2014, and that time has
determined that the compliance time for and installation instructions valid for pre- expired. Saab added that reducing the
replacing the SWCs must be reduced to and post-SB 340–27–097, 340–27–098, SB compliance time to 3 months is more in
ensure the unsafe condition is 340–27–099 and SB 340–27–116 aeroplanes. line with the MCAI. In addition, Saab
addressed prior to the beginning of icing For aeroplanes modified in accordance with noted that all operators have ordered
season after publication of the AD. We SAAB AB mod. No. 2650 and/or mod. No. replacement SWCs, and Saab has those
have determined that parts are available 2859 which are no longer registered in parts in stock and ready for delivery.
to support the reduced compliance time. Canada, SAAB AB issued SAAB AB SB 340– We agree with the commenter’s
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The European Aviation Safety Agency 27–109 to provide modification and request to reduce the compliance time,
(EASA), which is the Technical Agent installation instructions to remove the ice for the reasons provided. We also note
speed curve function.
for the Member States of the European For the reasons described above, this
that reducing the compliance time will
Union, has issued EASA Airworthiness [EASA] AD retains the requirements of EASA ensure that new SWCs are installed
Directive 2014–0218, dated September AD 2013–0254, which is superseded, and before the icing season begins. We have
29, 2014 (referred to after this as the requires modification of the Stall Warning changed the compliance time in
Mandatory Continuing Airworthiness and Identification System and replacement of paragraph (h) of this proposed AD from
Information, or ‘‘the MCAI’’), to correct the SWC with an improved unit. 12 to 3 months accordingly.
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![45074 Federal Register / Vol. 81, No. 133 / Tuesday, July 12, 2016 / Proposed Rules
Request To Correct Email Address product, at an average labor rate of $85 PART 39—AIRWORTHINESS
Saab asked that the Saab email per work-hour. Required parts cost DIRECTIVES
address in the proposed AD (in the about $33,000 per product. Based on
these figures, the estimated cost of the ■ 1. The authority citation for part 39
NPRM) be corrected to specify the
actions that are required by AD 2012– continues to read as follows:
following: saab340.techsupport@
saabgroup.com. 24–06 is $39,630 per product. Authority: 49 U.S.C. 106(g), 40113, 44701.
We agree with the commenter’s The new requirement of this SNPRM
adds no additional economic burden. § 39.13 [Amended]
request. The email address for Model
SAAB 2000 airplanes was inadvertently ■ 2. The FAA amends § 39.13 by
Authority for This Rulemaking
cited in the NPRM. We have corrected removing Airworthiness Directive (AD)
Title 49 of the United States Code 2012–24–06, Amendment 39–17276 (77
the address in the ADDRESSES section
specifies the FAA’s authority to issue FR 73279, December 10, 2012), and
and in paragraph (l)(2) of this proposed
rules on aviation safety. Subtitle I, adding the following new AD:
AD.
section 106, describes the authority of
Saab AB, Saab Aeronautics: Docket No.
Request To Use Later Revisions of the FAA Administrator. ‘‘Subtitle VII: FAA–2015–6544; Directorate Identifier
Service Information Aviation Programs,’’ describes in more 2014–NM–198–AD.
Silver Airways asked if we could detail the scope of the Agency’s
authority. (a) Comments Due Date
include subsequent revisions of the
We are issuing this rulemaking under We must receive comments by August 26,
referenced service information for AD 2016.
2012–24–06. the authority described in ‘‘Subtitle VII,
We do not agree with the commenter’s Part A, Subpart III, Section 44701: (b) Affected ADs
request because this proposed AD does General requirements.’’ Under that This AD replaces AD 2012–24–06,
not require the service information section, Congress charges the FAA with Amendment 39–17276 (77 FR 73279,
referenced in AD 2012–24–06. This promoting safe flight of civil aircraft in December 10, 2012) (‘‘AD 2012–24–06’’).
proposed AD does refer to the latest air commerce by prescribing regulations
(c) Applicability
available service information for the for practices, methods, and procedures
the Administrator finds necessary for This AD applies to Saab AB, Saab
proposed actions. Referring to a specific Aeronautics (formerly known as Saab AB,
service bulletin in an AD and using the safety in air commerce. This regulation
Saab Aerosystems) Model 340A (SAAB/
phrase ‘‘or later FAA-approved is within the scope of that authority SF340A) and SAAB 340B airplanes,
revisions’’ violates Office of the Federal because it addresses an unsafe condition certificated in any category, as identified in
Register regulations for approving that is likely to exist or develop on paragraphs (c)(1) and (c)(2) of this AD.
materials that are incorporated by products identified in this rulemaking (1) Model 340A (SAAB/SF340A) airplanes,
reference. However, operators may action. serial numbers 004 through 159 inclusive.
(2) Model SAAB 340B airplanes, serial
request approval to use a later revision Regulatory Findings numbers 160 through 459 inclusive, except
of the referenced service information as We determined that this proposed AD serial numbers 170, 342, 362, 363, 367, 372,
an AMOC under the provisions of would not have federalism implications 379, 385, 395, 405, 409, 431, 441, and 455.
paragraph (k)(1) of this proposed AD. under Executive Order 13132. This (d) Subject
We have not changed this final rule proposed AD would not have a
regarding this issue. Air Transport Association (ATA) of
substantial direct effect on the States, on America Code 27, Flight Controls.
FAA’s Determination and Requirements the relationship between the national
(e) Reason
of This SNPRM Government and the States, or on the
distribution of power and This AD was prompted by a determination
This product has been approved by that airplanes with certain modifications
responsibilities among the various
the aviation authority of another were excluded from the applicability in AD
levels of government. 2012–24–06, and are affected by the
country, and is approved for operation For the reasons discussed above, I
in the United States. Pursuant to our identified unsafe condition; and the stall
certify this proposed regulation: warning computer (SWC) required by AD
bilateral agreement with the State of 1. Is not a ‘‘significant regulatory 2012–24–06 contained erroneous logic. We
Design Authority, we have been notified action’’ under Executive Order 12866; are issuing this AD to prevent natural stall
of the unsafe condition described in the 2. Is not a ‘‘significant rule’’ under the events during operation in icing conditions,
MCAI and service information DOT Regulatory Policies and Procedures which could result in loss of control of the
referenced above. We are proposing this (44 FR 11034, February 26, 1979); airplane.
AD because we evaluated all pertinent 3. Will not affect intrastate aviation in (f) Compliance
information and determined an unsafe Alaska; and
condition exists and is likely to exist or Comply with this AD within the
4. Will not have a significant
compliance times specified, unless already
develop on other products of these same economic impact, positive or negative, done.
type designs. on a substantial number of small entities
Certain changes described above under the criteria of the Regulatory (g) Deactivation of Stall Speed Curves
expand the scope of the NPRM. As a Flexibility Act. For airplanes identified in paragraphs
result, we have determined that it is (g)(1) and (g)(2) of this AD: Within 30 days
necessary to reopen the comment period List of Subjects in 14 CFR Part 39 after the effective date of this AD, do the
Air transportation, Aircraft, Aviation deactivation specified in paragraph (g)(1) or
mstockstill on DSK3G9T082PROD with PROPOSALS
to provide additional opportunity for
the public to comment on this SNPRM. safety, Incorporation by reference, (g)(2) of this AD, as applicable to airplane
configuration, in accordance with the
Safety.
Costs of Compliance Accomplishment Instructions of Saab Service
The Proposed Amendment Bulletin 340–27–116, dated October 18, 2013.
We estimate that this SNPRM affects (1) For airplanes with a basic wing tip that
105 airplanes of U.S. registry. Accordingly, under the authority has been modified using Saab Service
The actions that are required by AD delegated to me by the Administrator, Bulletin 340–27–098: Deactivate the stall
2012–24–06, and retained in this the FAA proposes to amend 14 CFR part speed curves in the SWC having part number
SNPRM, take about 78 work-hours per 39 as follows: (P/N) 0020AK6.
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![Federal Register / Vol. 81, No. 133 / Tuesday, July 12, 2016 / Proposed Rules 45075
(2) For airplanes with an extended wing tip standards district office/certificate holding high frequency eddy current (HFEC),
that has been modified using Saab Service district office. The AMOC approval letter and ultrasonic inspections of the center
Bulletin 340–27–099: Deactivate the stall must specifically reference this AD. section rear spar upper clevis lugs and
speed curves in the SWC having P/N (2) Contacting the Manufacturer: For any
requirement in this AD to obtain corrective
horizontal stabilizer rear spar upper
0020AK7.
actions from a manufacturer, the action must lugs, as applicable, for any cracking, and
(h) Replacement of SWCs be accomplished using a method approved related investigative and corrective
Within 3 months after the effective date of by the Manager, International Branch, ANM– actions if necessary. For certain
this AD: Do the replacement specified in 116, Transport Airplane Directorate, FAA; or airplanes, this proposed AD would
paragraph (h)(1) or (h)(2) of this AD, as the European Aviation Safety Agency require replacement of the center
applicable. (EASA); or Saab AB, Saab Aeronautics’ EASA section rear spar upper chord with a
(1) For airplanes with basic wing tips: Design Organization Approval (DOA). If new part and a serviceable center
Replace all SWCs with new, improved SWCs approved by the DOA, the approval must
having P/N 0020AK6–1, in accordance with include the DOA-authorized signature.
section assembly. This proposed AD
the Accomplishment Instructions of Saab would also require repetitive HFEC and
Service Bulletin 340–27–121, dated July 11, (l) Related Information fluorescent dye penetrant inspections of
2014. (1) Refer to Mandatory Continuing the center section for cracking of the
(2) For airplanes with extended wing tips: Airworthiness Information (MCAI) EASA front and rear spar upper clevis lugs or
Replace all SWCs with new, improved SWCs Airworthiness Directive 2014–0218, dated horizontal stabilizer front and rear spar
having P/N 0020AK7–1, in accordance with September 29, 2014, for related information. upper lugs, and related investigative
the Accomplishment Instructions of Saab This MCAI may be found in the AD docket
and corrective actions if necessary. We
Service Bulletin 340–27–122, dated July 11, on the Internet at http://www.regulations.gov
2014. by searching for and locating Docket No. are proposing this AD to detect and
FAA–2015–6544. correct cracking in the rear spar upper
(i) Concurrent Modification (2) For service information identified in clevis lugs of the center section, and in
Before or concurrently with the this AD, contact Saab AB, Saab Aeronautics, the rear spar upper lugs of the
accomplishment of the applicable SE–581 88, Linköping, Sweden; telephone horizontal stabilizer which could result
requirements of paragraph (h) of this AD, do +46 13 18 5591; fax +46 13 18 4874; email in the loss of structural integrity and
the actions specified in paragraph (i)(1) or saab340.techsupport@saabgroup.com; controllability of the airplane.
(i)(2) of this AD, as applicable to airplane Internet http://www.saabgroup.com. You
configuration. DATES: We must receive comments on
may view this service information at the
(1) For airplanes on which either Saab AB FAA, Transport Airplane Directorate, 1601 this proposed AD by August 26, 2016.
Mod No. 2650 or Mod No. 2859 is not Lind Avenue SW., Renton, WA. For ADDRESSES: You may send comments,
installed: Modify the stall warning and information on the availability of this using the procedures found in 14 CFR
identification system, in accordance with the material at the FAA, call 425–227–1221. 11.43 and 11.45, by any of the following
Accomplishment Instructions of Saab Service
Bulletin 340–27–120, dated July 11, 2014. Issued in Renton, Washington, on June 23, methods:
(2) For airplanes on which either Saab AB 2016. • Federal eRulemaking Portal: Go to
Mod No. 2650 or Mod No. 2859 is installed, Dorr M. Anderson, http://www.regulations.gov. Follow the
or on which both mods are installed: Modify Acting Manager, Transport Airplane instructions for submitting comments.
the stall warning and identification system, Directorate, Aircraft Certification Service. • Fax: 202–493–2251.
in accordance with the Accomplishment
[FR Doc. 2016–15927 Filed 7–11–16; 8:45 am] • Mail: U.S. Department of
Instructions of Saab Service Bulletin 340–27– Transportation, Docket Operations, M–
109, dated April 14, 2014. BILLING CODE 4910–13–P
30, West Building Ground Floor, Room
(j) Parts Installation Prohibitions W12–140, 1200 New Jersey Avenue SE.,
After the replacement required by DEPARTMENT OF TRANSPORTATION Washington, DC 20590.
paragraph (h) of this AD, no person may • Hand Delivery: Deliver to Mail
install any SWC having P/N 0020AK, Federal Aviation Administration address above between 9 a.m. and 5
0020AK1, 0020AK2, 0020AK4, 0020AK6, p.m., Monday through Friday, except
0020AK7, or 0020AK3 MOD 1, on any 14 CFR Part 39 Federal holidays.
airplane. For service information identified in
[Docket No. FAA–2016–7426; Directorate
(k) Other FAA AD Provisions Identifier 2015–NM–199–AD] this NPRM, contact Boeing Commercial
The following provisions also apply to this Airplanes, Attention: Data & Services
AD: RIN 2120–AA64 Management, P. O. Box 3707, MC 2H–
(1) Alternative Methods of Compliance 65, Seattle, WA 98124–2207; telephone:
(AMOCs): The Manager, International Airworthiness Directives; The Boeing 206–544–5000, extension 1; fax: 206–
Branch, ANM–116, Transport Airplane Company Airplanes 766–5680; Internet: https://
Directorate, FAA, has the authority to www.myboeingfleet.com. You may view
AGENCY: Federal Aviation
approve AMOCs for this AD, if requested this referenced service information at
using the procedures found in 14 CFR 39.19. Administration (FAA), DOT.
In accordance with 14 CFR 39.19, send your ACTION: Notice of proposed rulemaking the FAA, Transport Airplane
request to your principal inspector or local (NPRM). Directorate, 1601 Lind Avenue SW.,
Flight Standards District Office, as Renton, WA. For information on the
appropriate. If sending information directly SUMMARY: We propose to adopt a new availability of this material at the FAA,
to the International Branch, send it to ATTN: airworthiness directive (AD) for certain call 425–227–1221. It is also available
Shahram Daneshmandi, Aerospace Engineer, The Boeing Company Model 737–100, on the Internet at http://
mstockstill on DSK3G9T082PROD with PROPOSALS
International Branch, ANM–116, Transport –200, and –200C series airplanes. This www.regulations.gov by searching for
Airplane Directorate, FAA, 1601 Lind proposed AD is intended to complete and locating Docket No. FAA–2016–
Avenue SW., Renton, WA 98057–3356; certain mandated programs intended to
telephone 425–227–1112; fax 425–227–1149. 7426.
Information may be emailed to: 9-ANM-116- support the airplane reaching its limit of
validity (LOV) of the engineering data Examining the AD Docket
AMOC-REQUESTS@faa.gov. Before using
any approved AMOC, notify your appropriate that support the established structural You may examine the AD docket on
principal inspector, or lacking a principal maintenance program. This proposed the Internet at http://
inspector, the manager of the local flight AD would require repetitive detailed, www.regulations.gov by searching for
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Document Created: 2016-07-12 01:59:07
Document Modified: 2016-07-12 01:59:07
| Category | Regulatory Information | |
| Collection | Federal Register | |
| sudoc Class | AE 2.7: GS 4.107: AE 2.106: | |
| Publisher | Office of the Federal Register, National Archives and Records Administration | |
| Section | Proposed Rules | |
| Action | Supplemental notice of proposed rulemaking (NPRM); reopening of comment period. | |
| Dates | We must receive comments on this SNPRM by August 26, 2016. | |
| Contact | Shahram Daneshmandi, Aerospace Engineer, International Branch, ANM-116, Transport Airplane Directorate, FAA, 1601 Lind Avenue SW., Renton, WA 98057-3356; telephone 425-227-1112; fax 425-227-1149. | |
| FR Citation | 81 FR 45072 | |
| RIN Number | 2120-AA64 | |
| CFR Associated | Air Transportation; Aircraft; Aviation Safety; Incorporation by Reference and Safety |
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