81 FR 76843 - 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 214 (November 4, 2016)
Federal Aviation Administration
Federal Register Volume 81, Issue 214 (November 4, 2016)
| Page Range | 76843-76845 | |
| FR Document | 2016-26327 |
[Federal Register Volume 81, Number 214 (Friday, November 4, 2016)] [Rules and Regulations] [Pages 76843-76845] From the Federal Register Online [www.thefederalregister.org] [FR Doc No: 2016-26327] ======================================================================== Rules and Regulations Federal Register ________________________________________________________________________ This section of the FEDERAL REGISTER contains regulatory documents having general applicability and legal effect, most of which are keyed to and codified in the Code of Federal Regulations, which is published under 50 titles pursuant to 44 U.S.C. 1510. The Code of Federal Regulations is sold by the Superintendent of Documents. Prices of new books are listed in the first FEDERAL REGISTER issue of each week. ======================================================================== Federal Register / Vol. 81, No. 214 / Friday, November 4, 2016 / Rules and Regulations [[Page 76843]] DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA-2015-6544; Directorate Identifier 2014-NM-198-AD; Amendment 39-18704; AD 2016-22-15] RIN 2120-AA64 Airworthiness Directives; Saab AB, Saab Aeronautics (Formerly Known as Saab AB, Saab Aerosystems) Airplanes AGENCY: Federal Aviation Administration (FAA), Department of Transportation (DOT). ACTION: Final rule. ----------------------------------------------------------------------- SUMMARY: We are superseding Airworthiness Directive (AD) 2012-24-06 for certain Saab AB, Saab Aeronautics Model 340A (SAAB/SF340A) and SAAB 340B airplanes. AD 2012-24-06 required 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. This new AD adds airplanes to the applicability, and adds requirements to replace the existing SWCs with new, improved SWCs, and to modify the airplane for the new replacement of the SWC. This new AD also reduces the compliance time for replacing the SWCs. 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 that the 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. DATES: This AD is effective December 9, 2016. The Director of the Federal Register approved the incorporation by reference of certain publications listed in this AD as of December 9, 2016. ADDRESSES: For service information identified in this final rule, 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. It is also available on the Internet at http://www.regulations.gov by searching for and locating Docket No. FAA-2015-6544. 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 AD, the regulatory evaluation, any comments received, and other information. The address for the Docket Office (telephone 800- 647-5527) is Docket Management Facility, U.S. Department of Transportation, Docket Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New Jersey Avenue SE., Washington, DC 20590. 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: Discussion We issued a supplemental notice of proposed rulemaking (SNPRM) to amend 14 CFR part 39 to supersede AD 2012-24-06, Amendment 39-17276 (77 FR 73279, December 10, 2012) (``AD 2012-24-06''). AD 2012-24-06 applied to certain Saab AB, Saab Aeronautics Model 340A (SAAB/SF340A) and SAAB 340B airplanes. The SNPRM published in the Federal Register on July 12, 2016 (81 FR 45072) (``the SNPRM''). We preceded the SNPRM with a notice of proposed rulemaking (NPRM) that published in the Federal Register on December 17, 2015 (80 FR 78699) (``the NPRM''). 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 to add requirements to replace the existing SWCs with new, improved SWCs and to modify the airplane for the new replacement of the SWC. The SNPRM proposed to reduce the compliance time for replacing the SWCs. 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. 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 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. [[Page 76844]] 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 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. Comments We gave the public the opportunity to participate in developing this AD. We received no comments on the SNPRM or on the determination of the cost to the public. Conclusion We reviewed the available data and determined that air safety and the public interest require adopting this AD as proposed, except for minor editorial changes. We have determined that these minor changes:Are consistent with the intent that was proposed in the SNPRM for correcting the unsafe condition; and Do not add any additional burden upon the public than was already proposed in the SNPRM. 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. These documents are distinct since they apply to different airplane models in different configurations. 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. Costs of Compliance We estimate that this AD affects 105 airplanes of U.S. registry. The actions required by AD 2012-24-06 and retained in this AD, 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 were required by AD 2012-24-06 is $39,630 per product. The new requirement of this AD 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 AD will not have federalism implications under Executive Order 13132. This AD will 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 that this AD: 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. Adoption of the Amendment Accordingly, under the authority delegated to me by the Administrator, the FAA amends 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: 2016-22-15 Saab AB, Saab Aeronautics: Amendment 39-18704; Docket No. FAA-2015-6544; Directorate Identifier 2014-NM-198-AD. (a) Effective Date This AD is effective December 9, 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. [[Page 76845]] (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. (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 Modification 2650 or Modification 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 Modification 2650 or Modification 2859 is installed, or on which both modifications 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 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. (m) Material Incorporated by Reference (1) The Director of the Federal Register approved the incorporation by reference (IBR) of the service information listed in this paragraph under 5 U.S.C. 552(a) and 1 CFR part 51. (2) You must use this service information as applicable to do the actions required by this AD, unless this AD specifies otherwise. (i) Saab Service Bulletin 340-27-109, dated April 14, 2014. (ii) Saab Service Bulletin 340-27-116, dated October 18, 2013. (iii) Saab Service Bulletin 340-27-120, dated July 11, 2014. (iv) Saab Service Bulletin 340-27-121, dated July 11, 2014. (v) Saab Service Bulletin 340-27-122, dated July 11, 2014. (3) 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. (4) 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. (5) You may view this service information that is incorporated by reference at the National Archives and Records Administration (NARA). For information on the availability of this material at NARA, call 202-741-6030, or go to: http://www.archives.gov/federal-register/cfr/ibr-locations.html. Issued in Renton, Washington, on October 25, 2016. Dionne Palermo, Acting Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. 2016-26327 Filed 11-3-16; 8:45 am] BILLING CODE 4910-13-P
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Rules and Regulations Federal Register
Vol. 81, No. 214
Friday, November 4, 2016
This section of the FEDERAL REGISTER DATES: This AD is effective December 9, in the Federal Register on July 12, 2016
contains regulatory documents having general 2016. (81 FR 45072) (‘‘the SNPRM’’). We
applicability and legal effect, most of which The Director of the Federal Register preceded the SNPRM with a notice of
are keyed to and codified in the Code of approved the incorporation by reference proposed rulemaking (NPRM) that
Federal Regulations, which is published under of certain publications listed in this AD published in the Federal Register on
50 titles pursuant to 44 U.S.C. 1510.
as of December 9, 2016. December 17, 2015 (80 FR 78699) (‘‘the
The Code of Federal Regulations is sold by ADDRESSES: For service information NPRM’’). The NPRM was prompted by
the Superintendent of Documents. Prices of identified in this final rule, contact Saab a determination that airplanes with
new books are listed in the first FEDERAL AB, Saab Aeronautics, SE–581 88, certain modifications were excluded
REGISTER issue of each week. Linköping, Sweden; telephone +46 13 from the applicability in AD 2012–24–
18 5591; fax +46 13 18 4874; email 06, and are affected by the identified
saab340.techsupport@saabgroup.com; unsafe condition; and the SWC required
DEPARTMENT OF TRANSPORTATION Internet http://www.saabgroup.com. by AD 2012–24–06 contained erroneous
You may view this referenced service logic. The NPRM proposed to add
Federal Aviation Administration airplanes to the applicability and to add
information at the FAA, Transport
Airplane Directorate, 1601 Lind Avenue requirements to replace the existing
14 CFR Part 39 SWCs with new, improved SWCs and to
SW., Renton, WA. For information on
the availability of this material at the modify the airplane for the new
[Docket No. FAA–2015–6544; Directorate FAA, call 425–227–1221. It is also replacement of the SWC. The SNPRM
Identifier 2014–NM–198–AD; Amendment proposed to reduce the compliance time
available on the Internet at http://
39–18704; AD 2016–22–15]
www.regulations.gov by searching for for replacing the SWCs. We are issuing
and locating Docket No. FAA–2015– this AD to prevent natural stall events
RIN 2120–AA64 6544. during operation in icing conditions,
which could result in loss of control of
Airworthiness Directives; Saab AB, Examining the AD Docket the airplane.
Saab Aeronautics (Formerly Known as You may examine the AD docket on The European Aviation Safety Agency
Saab AB, Saab Aerosystems) the Internet at http:// (EASA), which is the Technical Agent
Airplanes www.regulations.gov by searching for for the Member States of the European
AGENCY: Federal Aviation and locating Docket No. FAA–2015– Union, has issued EASA Airworthiness
Administration (FAA), Department of 6544; or in person at the Docket Directive 2014–0218, dated September
Transportation (DOT). Management Facility between 9 a.m. 29, 2014 (referred to after this as the
ACTION: Final rule.
and 5 p.m., Monday through Friday, Mandatory Continuing Airworthiness
except Federal holidays. The AD docket Information, or ‘‘the MCAI’’), to correct
SUMMARY: We are superseding contains this AD, the regulatory an unsafe condition on certain Saab AB,
Airworthiness Directive (AD) 2012–24– evaluation, any comments received, and Saab Aeronautics Model 340A (SAAB/
06 for certain Saab AB, Saab other information. The address for the SF340A) and SAAB 340B airplanes. The
Aeronautics Model 340A (SAAB/ Docket Office (telephone 800–647–5527) MCAI states:
SF340A) and SAAB 340B airplanes. AD is Docket Management Facility, U.S. A few natural stall events, specifically
2012–24–06 required replacing the stall Department of Transportation, Docket when operating in icing conditions, have
warning computer (SWC) with a new Operations, M–30, West Building been experienced on SAAB 340 series
SWC that provides an artificial stall Ground Floor, Room W12–140, 1200 aeroplanes, without receiving a prior stall
warning in icing conditions, and New Jersey Avenue SE., Washington, warning.
modifying the airplane for the DC 20590. This condition, if not corrected, could
result in loss of control of the aeroplane.
replacement of the SWC. This new AD FOR FURTHER INFORMATION CONTACT: To address this potential unsafe condition,
adds airplanes to the applicability, and Shahram Daneshmandi, Aerospace SAAB developed a modified stall warning
adds requirements to replace the Engineer, International Branch, ANM– system, incorporating improved stall warning
existing SWCs with new, improved 116, Transport Airplane Directorate, logic, and issued Service Bulletin (SB) 340–
SWCs, and to modify the airplane for FAA, 1601 Lind Avenue SW., Renton, 27–098 and SB 340–27–099, providing
the new replacement of the SWC. This WA 98057–3356; telephone 425–227– instructions to replace the Stall Warning
new AD also reduces the compliance 1112; fax 425–227–1149. Computer (SWC) with a new SWC, and
instructions to activate the new SWC. The
time for replacing the SWCs. This AD SUPPLEMENTARY INFORMATION: new system included stall warning curves
was prompted by a determination that optimized for operation in icing conditions,
airplanes with certain modifications Discussion
which are activated by selection of Engine
were excluded from the applicability in We issued a supplemental notice of Anti-Ice.
AD 2012–24–06, and are affected by the proposed rulemaking (SNPRM) to Consequently, EASA issued AD 2011–0219
identified unsafe condition; and that the amend 14 CFR part 39 to supersede AD to require installation of the improved SWC.
rmajette on DSK2TPTVN1PROD with RULES
SWC required by AD 2012–24–06 2012–24–06, Amendment 39–17276 (77 After that [EASA] AD was issued, in-
service experience with the improved stall
contained erroneous logic. We are FR 73279, December 10, 2012) (‘‘AD warning system revealed cases of premature
issuing this AD to prevent natural stall 2012–24–06’’). AD 2012–24–06 applied stall warning activation during the take-off
events during operation in icing to certain Saab AB, Saab Aeronautics phase. In numerous recorded cases, the onset
conditions, which could result in loss of Model 340A (SAAB/SF340A) and SAAB of stall warning occurred without the 6
control of the airplane. 340B airplanes. The SNPRM published minute delay after weight off wheels.
VerDate Sep<11>2014 11:51 Nov 03, 2016 Jkt 241001 PO 00000 Frm 00001 Fmt 4700 Sfmt 4700 E:\FR\FM\04NOR1.SGM 04NOR1](https://thefederalregister.org/doc/81_FR_77057/page/1.svg)
![76844 Federal Register / Vol. 81, No. 214 / Friday, November 4, 2016 / Rules and Regulations
This condition, if not corrected, could lead • Saab Service Bulletin 340–27–116, the States, on the relationship between
to premature stick shaker activation and dated October 18, 2013. the national government and the States,
consequent increase in pilot workload during • Saab Service Bulletin 340–27–120, or on the distribution of power and
the take-off phase, possibly resulting in dated July 11, 2014. responsibilities among the various
reduced control of the aeroplane.
• Saab Service Bulletin 340–27–121, levels of government.
To correct this unsafe condition, EASA
issued AD 2013–0254 retaining the
dated July 11, 2014. For the reasons discussed above, I
requirements of EASA AD 2011–0219, which • Saab Service Bulletin 340–27–122, certify that this AD:
was superseded, to require deactivation of dated July 11, 2014. 1. Is not a ‘‘significant regulatory
the ice speed curves in the improved SWC The service information describes action’’ under Executive Order 12866;
on SAAB 340 aeroplanes, in accordance with procedures for deactivating the stall
2. Is not a ‘‘significant rule’’ under the
SAAB SB 340–27–116. warning speed curves in the SWCs for
Since EASA AD 2013–0254 was issued, DOT Regulatory Policies and Procedures
certain airplanes; replacing the existing
SAAB developed a technical solution to (44 FR 11034, February 26, 1979);
SWCs with new, improved SWCs; and
eliminate the premature activation of the stall modifying the airplane for the new 3. Will not affect intrastate aviation in
warning ice curves and issued SB 340–27–
replacement of the SWC. These Alaska; and
120 (modification of the existing Stall 4. Will not have a significant
Warning System installation), SB 340–27–
documents are distinct since they apply
to different airplane models in different economic impact, positive or negative,
121 (activation of improved SWC for
aeroplanes with a basic wing tip) and SB configurations. This service information on a substantial number of small entities
340–27–122 (activation of improved SWC for is reasonably available because the under the criteria of the Regulatory
aeroplanes with an extended wing tip). interested parties have access to it Flexibility Act.
SAAB SB 340–27–120 provides modification through their normal course of business List of Subjects in 14 CFR Part 39
and installation instructions valid for pre- or by the means identified in the
and post-SB 340–27–097, 340–27–098, SB ADDRESSES section. Air transportation, Aircraft, Aviation
340–27–099 and SB 340–27–116 aeroplanes. safety, Incorporation by reference,
For aeroplanes modified in accordance with Costs of Compliance Safety.
SAAB AB mod. No. 2650 and/or mod. No.
2859 which are no longer registered in
We estimate that this AD affects 105 Adoption of the Amendment
Canada, SAAB AB issued SAAB AB SB 340– airplanes of U.S. registry.
27–109 to provide modification and The actions required by AD 2012–24– Accordingly, under the authority
installation instructions to remove the ice 06 and retained in this AD, take about delegated to me by the Administrator,
speed curve function. 78 work-hours per product, at an the FAA amends 14 CFR part 39 as
For the reasons described above, this average labor rate of $85 per work-hour. follows:
[EASA] AD retains the requirements of EASA Required parts cost about $33,000 per
AD 2013–0254, which is superseded, and product. Based on these figures, the PART 39—AIRWORTHINESS
requires modification of the Stall Warning estimated cost of the actions that were DIRECTIVES
and Identification System and replacement of required by AD 2012–24–06 is $39,630
the SWC with an improved unit. ■ 1. The authority citation for part 39
per product.
You may examine the MCAI in the The new requirement of this AD adds continues to read as follows:
AD docket on the Internet at http:// no additional economic burden. Authority: 49 U.S.C. 106(g), 40113, 44701.
www.regulations.gov by searching for
and locating Docket No. FAA–2015– Authority for This Rulemaking § 39.13 [Amended]
6544. Title 49 of the United States Code ■ 2. The FAA amends § 39.13 by
specifies the FAA’s authority to issue removing Airworthiness Directive (AD)
Comments rules on aviation safety. Subtitle I, 2012–24–06, Amendment 39–17276 (77
We gave the public the opportunity to section 106, describes the authority of FR 73279, December 10, 2012), and
participate in developing this AD. We the FAA Administrator. ‘‘Subtitle VII: adding the following new AD:
received no comments on the SNPRM or Aviation Programs,’’ describes in more
2016–22–15 Saab AB, Saab Aeronautics:
on the determination of the cost to the detail the scope of the Agency’s
Amendment 39–18704; Docket No.
public. authority. FAA–2015–6544; Directorate Identifier
We are issuing this rulemaking under 2014–NM–198–AD.
Conclusion the authority described in ‘‘Subtitle VII,
We reviewed the available data and Part A, Subpart III, Section 44701: (a) Effective Date
determined that air safety and the General requirements.’’ Under that This AD is effective December 9, 2016.
public interest require adopting this AD section, Congress charges the FAA with (b) Affected ADs
as proposed, except for minor editorial promoting safe flight of civil aircraft in
This AD replaces AD 2012–24–06,
changes. We have determined that these air commerce by prescribing regulations
Amendment 39–17276 (77 FR 73279,
minor changes: for practices, methods, and procedures December 10, 2012) (‘‘AD 2012–24–06’’).
• Are consistent with the intent that the Administrator finds necessary for
was proposed in the SNPRM for safety in air commerce. This regulation (c) Applicability
correcting the unsafe condition; and is within the scope of that authority This AD applies to Saab AB, Saab
• Do not add any additional burden because it addresses an unsafe condition Aeronautics (formerly known as Saab AB,
upon the public than was already that is likely to exist or develop on Saab Aerosystems) Model 340A (SAAB/
proposed in the SNPRM. products identified in this rulemaking SF340A) and SAAB 340B airplanes,
certificated in any category, as identified in
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action.
Related Service Information Under 1 paragraphs (c)(1) and (c)(2) of this AD.
CFR Part 51 Regulatory Findings (1) Model 340A (SAAB/SF340A) airplanes,
serial numbers 004 through 159 inclusive.
Saab AB, Saab Aeronautics has issued We determined that this AD will not (2) Model SAAB 340B airplanes, serial
the following service information: have federalism implications under numbers 160 through 459 inclusive, except
• Saab Service Bulletin 340–27–109, Executive Order 13132. This AD will serial numbers 170, 342, 362, 363, 367, 372,
dated April 14, 2014. not have a substantial direct effect on 379, 385, 395, 405, 409, 431, 441, and 455.
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![Federal Register / Vol. 81, No. 214 / Friday, November 4, 2016 / Rules and Regulations 76845
(d) Subject installed: Modify the stall warning and (iv) Saab Service Bulletin 340–27–121,
Air Transport Association (ATA) of identification system, in accordance with the dated July 11, 2014.
America Code 27, Flight Controls. Accomplishment Instructions of Saab Service (v) Saab Service Bulletin 340–27–122,
Bulletin 340–27–109, dated April 14, 2014. dated July 11, 2014.
(e) Reason (3) For service information identified in
(j) Parts Installation Prohibitions
This AD was prompted by a determination this AD, contact Saab AB, Saab Aeronautics,
that airplanes with certain modifications After the replacement required by SE–581 88, Linköping, Sweden; telephone
were excluded from the applicability in AD paragraph (h) of this AD, no person may +46 13 18 5591; fax +46 13 18 4874; email
2012–24–06, and are affected by the install any SWC having P/N 0020AK, saab340.techsupport@saabgroup.com;
identified unsafe condition; and the stall 0020AK1, 0020AK2, 0020AK4, 0020AK6, Internet http://www.saabgroup.com.
warning computer (SWC) required by AD 0020AK7, or 0020AK3 MOD 1, on any (4) You may view this service information
airplane. at the FAA, Transport Airplane Directorate,
2012–24–06 contained erroneous logic. We
are issuing this AD to prevent natural stall (k) Other FAA AD Provisions 1601 Lind Avenue SW., Renton, WA. For
events during operation in icing conditions, information on the availability of this
The following provisions also apply to this material at the FAA, call 425–227–1221.
which could result in loss of control of the AD:
airplane. (5) You may view this service information
(1) Alternative Methods of Compliance that is incorporated by reference at the
(f) Compliance (AMOCs): The Manager, International National Archives and Records
Branch, ANM–116, Transport Airplane Administration (NARA). For information on
Comply with this AD within the
Directorate, FAA, has the authority to the availability of this material at NARA, call
compliance times specified, unless already
approve AMOCs for this AD, if requested 202–741–6030, or go to: http://
done.
using the procedures found in 14 CFR 39.19. www.archives.gov/federal-register/cfr/ibr-
(g) Deactivation of Stall Speed Curves In accordance with 14 CFR 39.19, send your locations.html.
request to your principal inspector or local
For airplanes identified in paragraphs
Flight Standards District Office, as Issued in Renton, Washington, on October
(g)(1) and (g)(2) of this AD: Within 30 days
appropriate. If sending information directly 25, 2016.
after the effective date of this AD, do the
to the International Branch, send it to ATTN:
deactivation specified in paragraph (g)(1) or Dionne Palermo,
Shahram Daneshmandi, Aerospace Engineer,
(g)(2) of this AD, as applicable to airplane Acting Manager, Transport Airplane
International Branch, ANM–116, Transport
configuration, in accordance with the Directorate, Aircraft Certification Service.
Airplane Directorate, FAA, 1601 Lind
Accomplishment Instructions of Saab Service
Avenue SW., Renton, WA 98057–3356; [FR Doc. 2016–26327 Filed 11–3–16; 8:45 am]
Bulletin 340–27–116, dated October 18, 2013. telephone 425–227–1112; fax 425–227–1149.
(1) For airplanes with a basic wing tip that BILLING CODE 4910–13–P
Information may be emailed to: 9-ANM-116-
has been modified using Saab Service AMOC-REQUESTS@faa.gov. Before using
Bulletin 340–27–098: Deactivate the stall any approved AMOC, notify your appropriate
speed curves in the SWC having part number principal inspector, or lacking a principal
DEPARTMENT OF TRANSPORTATION
(P/N) 0020AK6. inspector, the manager of the local flight
(2) For airplanes with an extended wing tip standards district office/certificate holding
Federal Aviation Administration
that has been modified using Saab Service district office. The AMOC approval letter
Bulletin 340–27–099: Deactivate the stall must specifically reference this AD. 14 CFR Part 39
speed curves in the SWC having P/N (2) Contacting the Manufacturer: For any
0020AK7. requirement in this AD to obtain corrective [Docket No. FAA–2016–9356; Directorate
(h) Replacement of SWCs actions from a manufacturer, the action must Identifier 2016–CE–033–AD; Amendment
be accomplished using a method approved 39–18701; AD 2016–22–12]
Within 3 months after the effective date of by the Manager, International Branch, ANM–
this AD: Do the replacement specified in 116, Transport Airplane Directorate, FAA; or RIN 2120–AA64
paragraph (h)(1) or (h)(2) of this AD, as the European Aviation Safety Agency
applicable. (EASA); or Saab AB, Saab Aeronautics’ EASA
(1) For airplanes with basic wing tips:
Airworthiness Directives; Pilatus
Design Organization Approval (DOA). If Aircraft Ltd. Airplanes
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. AGENCY: Federal Aviation
the Accomplishment Instructions of Saab
Service Bulletin 340–27–121, dated July 11, (l) Related Information Administration (FAA), DOT.
2014. Refer to Mandatory Continuing ACTION: Final rule; request for
(2) For airplanes with extended wing tips: Airworthiness Information (MCAI) EASA comments.
Replace all SWCs with new, improved SWCs Airworthiness Directive 2014–0218, dated
having P/N 0020AK7–1, in accordance with September 29, 2014, for related information. SUMMARY: We are adopting a new
the Accomplishment Instructions of Saab This MCAI may be found in the AD docket airworthiness directive (AD) for all
Service Bulletin 340–27–122, dated July 11, on the Internet at http://www.regulations.gov Pilatus Aircraft Ltd. Models PC–6, PC–
2014. by searching for and locating Docket No. 6–H1, PC–6–H2, PC–6/350, PC–6/350–
(i) Concurrent Modification FAA–2015–6544. H1, PC–6/350–H2, PC–6/A, PC–6/A–H1,
Before or concurrently with the (m) Material Incorporated by Reference PC–6/A–H2, PC–6/B–H2, PC–6/B1–H2,
accomplishment of the applicable (1) The Director of the Federal Register PC–6/B2–H2, PC–6/B2–H4, PC–6/C–H2,
requirements of paragraph (h) of this AD, do approved the incorporation by reference and PC–6/C1–H2 airplanes. This AD
the actions specified in paragraph (i)(1) or (IBR) of the service information listed in this results from mandatory continuing
(i)(2) of this AD, as applicable to airplane paragraph under 5 U.S.C. 552(a) and 1 CFR airworthiness information (MCAI)
configuration. part 51. issued by the aviation authority of
(1) For airplanes on which either Saab AB (2) You must use this service information another country to identify and correct
Modification 2650 or Modification 2859 is as applicable to do the actions required by an unsafe condition on an aviation
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not installed: Modify the stall warning and this AD, unless this AD specifies otherwise. product. The MCAI describes the unsafe
identification system, in accordance with the (i) Saab Service Bulletin 340–27–109,
Accomplishment Instructions of Saab Service dated April 14, 2014. condition as wear and cracks on the
Bulletin 340–27–120, dated July 11, 2014. (ii) Saab Service Bulletin 340–27–116, stabilizer-trim attachment and structural
(2) For airplanes on which either Saab AB dated October 18, 2013. components. We are issuing this AD to
Modification 2650 or Modification 2859 is (iii) Saab Service Bulletin 340–27–120, require actions to address the unsafe
installed, or on which both modifications are dated July 11, 2014. condition on these products.
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Document Created: 2018-02-14 08:26:30
Document Modified: 2018-02-14 08:26:30
| 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 | Rules and Regulations | |
| Action | Final rule. | |
| Dates | This AD is effective December 9, 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 76843 | |
| RIN Number | 2120-AA64 | |
| CFR Associated | Air Transportation; Aircraft; Aviation Safety; Incorporation by Reference and Safety |
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