82 FR 1267 - Airworthiness Directives; Sikorsky Aircraft Corporation Helicopters (Type Certificate Previously Held by Schweizer Aircraft Corporation)
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration Federal Register Volume 82, Issue 3 (January 5, 2017)
Federal Aviation Administration
Federal Register Volume 82, Issue 3 (January 5, 2017)
| Page Range | 1267-1269 | |
| FR Document | 2016-31622 |
[Federal Register Volume 82, Number 3 (Thursday, January 5, 2017)] [Proposed Rules] [Pages 1267-1269] From the Federal Register Online [www.thefederalregister.org] [FR Doc No: 2016-31622] ----------------------------------------------------------------------- DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA-2016-6968; Directorate Identifier 2015-SW-020-AD] RIN 2120-AA64 Airworthiness Directives; Sikorsky Aircraft Corporation Helicopters (Type Certificate Previously Held by Schweizer Aircraft Corporation) AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed rulemaking (NPRM). ----------------------------------------------------------------------- SUMMARY: We propose to supersede airworthiness directive (AD) 93-17-13 for Schweizer Aircraft Corporation and Hughes Helicopters, Inc. (now Sikorsky Aircraft Corporation) (Sikorsky) Model TH55A, 269A, 269A-1, 269B, and 269C helicopters. AD 93-17-13 requires installing tachometer markings and inspecting the driveshaft. This proposed AD would require recurring inspections of the driveshaft and would expand the applicability to include Model 269C-1 helicopters. This proposed AD is prompted by reports of accidents because of driveshaft failures. The actions of this proposed AD are intended to prevent the unsafe condition on these products. DATES: We must receive comments on this proposed AD by March 6, 2017. ADDRESSES: You may send comments by any of the following methods:Federal eRulemaking Docket: Go to http://www.regulations.gov. Follow the online instructions for sending your comments electronically. Fax: 202-493-2251. Mail: Send comments to the U.S. Department of Transportation, Docket Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New Jersey Avenue SE., Washington, DC 20590-0001. Hand Delivery: Deliver to the ``Mail'' address between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. Examining the AD Docket You may examine the AD docket on the Internet at http://www.regulations.gov or in person at the Docket Operations Office between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. The AD docket contains this proposed AD, the economic evaluation, any comments received, and other information. The street address for the Docket Operations Office (telephone 800-647-5527) is in the ADDRESSES section. Comments will be available in the AD docket shortly after receipt. For service information identified in this proposed AD, contact Sikorsky Aircraft Corporation, Customer Service Engineering, 124 Quarry Road, Trumbull, CT 06611; telephone 1-800-Winged-S or 203-416-4299; email [email protected]. You may review the referenced service information at the FAA, Office of the Regional Counsel, Southwest Region, 10101 Hillwood Pkwy., Room 6N-321, Fort Worth, TX 76177. FOR FURTHER INFORMATION CONTACT: Blaine Williams, Aerospace Engineer, Boston Aircraft Certification Office, Engine & Propeller Directorate, 1200 District Avenue, Burlington, Massachusetts 01803; telephone (781) 238-7161; email [email protected]. SUPPLEMENTARY INFORMATION: Comments Invited We invite you to participate in this rulemaking by submitting written comments, data, or views. We also invite comments relating to the economic, environmental, energy, or federalism impacts that might result from adopting the proposals in this document. The most helpful comments reference a specific portion of the proposal, explain the reason for any recommended change, and include supporting data. To ensure the docket does not contain duplicate comments, commenters should send only one copy of written comments, or if comments are filed electronically, commenters should submit only one time. We will file in the docket all comments that we receive, as well as a report summarizing each substantive public contact with FAA personnel concerning this proposed rulemaking. Before acting on this proposal, we will consider all comments we receive on or before the closing date for comments. We will consider comments filed after the comment period has closed if it is possible to do so without incurring expense or delay. We may change this proposal in light of the comments we receive. Discussion On August 31, 1993, we issued AD 93-17-13, Amendment 39-8684 (58 FR 51770, October 5, 1993), for Schweizer Aircraft Corporation and Hughes Helicopters, Inc., Model 269A, 269A-1, 269B, 269C, and TH55A helicopters. AD 93-17-13 requires within 30 days or 100 hours time-in- service (TIS), [[Page 1268]] whichever occurs first, and thereafter every 300 hours TIS, visually inspecting for cracks, machining steps, manufacturing tool marks, surface defects, and lack of cleanup during the production grinding operation. AD 93-17-13 also requires installing engine and rotor tachomometer markings and replacing any unairworthy lower coupling driveshaft (driveshaft) before further flight. The actions in AD 93-17- 13 are intended to prevent failure of the driveshaft, loss of power to the rotor system, and subsequent loss of helicopter control. Actions Since AD 93-17-13 Was Issued Since we issued AD 93-17-13, Sikorsky became the type certificate holder of the Model 269A, 269A-1, 269B, 269C, and TH55A. Sikorsky performed a safety analysis and determined that the initial and recurrent inspection intervals and inspection method were not adequate to detect all corrosion, pits, nicks, scratches, dents, and cracks. Since 1992, 10 accidents, 2 of them fatal, occurred because of driveshaft failures due to static overload or torsional fatigue. Five of the accidents occurred after AD 93-17-13 was issued. We propose reducing the initial and recurring inspection intervals, changing the type of damage to be detected by the visual inspection, and adding a magnetic particle inspection. We propose including specific part-numbered driveshafts to the applicability because Sikorsky is developing a new driveshaft that we do not expect to be subject to this AD. We propose expanding the applicability to include Model 269C-1 helicopters. These helicopters were not manufactured when AD 93-17-13 was issued but have applicable driveshafts installed. We propose to retain the requirement to install engine and tachometer markings. AD 93-17-13 requires these markings because of reports of driveshaft damage as a result of engine overspeeds during start-up. Finally, we would require a visual inspection for ``corrosion, a pit, a nick, a scratch, a dent, or a crack'' instead of ``cracks, machining steps, manufacturing tool marks, surface defects and lack of cleanup during the production grinding operation'' contained in AD 93- 17-13. Since AD 93-17-13 was issued, we have seen no evidence that the driveshaft failures were caused by production errors. The proposed actions are intended to prevent failure of the driveshaft, loss of power to the rotor system, and subsequent loss of helicopter control. FAA's Determination We are proposing this AD because we evaluated all known relevant information and determined that an unsafe condition exists and is likely to exist or develop on other products of these same type designs. Related Service Information Under 1 CFR Part 51 We reviewed Sikorsky 269C Helicopter Alert Service Bulletin B-307, Basic Issue, dated December 18, 2014, and Sikorsky 269C-1 Helicopter Alert Service Bulletin C1B-043, Basic Issue, dated December 18, 2014 (ASBs). The ASBs call for a one-time visual and magnetic particle inspection of the driveshaft and driveshaft assembly for damage. The ASBs advise that the driveshaft be sent to Sikorsky and replaced if damaged. The inspection is to be accomplished within 25 hours TIS or within 180 days from the ASBs' issue date, whichever comes first. Sikorsky has since revised its maintenance manual to incorporate these inspections every 150 hours TIS. We also reviewed Schweizer Aircraft Service Bulletin B-257.1, dated May 21, 1993 (ASB B-257.1). ASB B-257.1 calls for a one-time inspection to look for drive-shaft defects; installing declutched limit markings on the engine/rotor tachometer to reinforce operating limits; and prohibiting engine declutched operations above 1,600 RPM. 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. Proposed AD Requirements This proposed AD would require within 25 hours TIS and thereafter at intervals not to exceed 150 hours TIS, visual inspections of the driveshaft. If there are no cracks, corrosion, or other damage, this proposed AD would require performing a magnetic particle inspection. If there is a crack or other damage, this proposed AD would require replacing the driveshaft before further flight. This proposed AD would also require adding tachometer markings if not previously performed. Differences Between This Proposed AD and the Service Information The Sikorsky service information calls for the initial inspection to be completed within 180 days or 25 hours time-in-service (TIS). This proposed AD would require the initial inspection to be completed within 25 hours TIS only. The service information requires contacting Sikorsky if a certain part-numbered driveshaft is installed, emailing information to Sikorsky, and returning damaged parts to Sikorsky; this proposed AD would not. Interim Action We consider this proposed AD to be an interim action. The design approval holder is developing a replacement driveshaft that will address the unsafe condition identified in this proposed AD. Once the replacement driveshaft is developed, approved and available, we might consider additional rulemaking. Costs of Compliance We estimate that this proposed AD would affect 619 helicopters of U.S. Registry and that labor costs average $85 per work hour. Based on these estimates, we expect the following costs: We estimate that the visual and magnetic particle inspections of the driveshaft would require 11 work hours for a cost of $935 per helicopter and $578,765 for the U.S. fleet per inspection cycle. Replacing the driveshaft, if needed, would cost about $4,574 for parts. No additional labor costs would be necessary. Installing engine and rotor tachometer markings would require 0.5 work-hour for a labor cost of about $43. The cost of parts would be minimal. 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 [[Page 1269]] distribution of power and responsibilities among the various levels of government. For the reasons discussed, 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 to the extent that it justifies making a regulatory distinction; 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. We prepared an economic evaluation of the estimated costs to comply with this proposed AD and placed it in the AD docket. 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) AD 93-17-13, Amendment 39-8684 (58 FR 51770, October 5, 1993) and adding the following new airworthiness directive (AD): Sikorsky Aircraft Corporation (Type Certificate Previously Held By Schweizer Aircraft Corporation): Docket No. FAA-2016-6968; Directorate Identifier 2015-SW-020-AD. (a) Applicability This AD applies to Model TH55A, 269A, 269A-1, 269B, 269C and 269C-1 helicopters, with a lower coupling driveshaft (driveshaft) part number (P/N) 269-5412, 269A5504, 269A5504-003, 269A5504-005, 269A5559, or 269A5559-003 installed, certificated in any category. (b) Unsafe Condition This AD defines the unsafe condition as failure of a driveshaft. This condition could result in loss of power to the rotor system and subsequent loss of helicopter control. (c) Affected ADs This AD supersedes AD 93-17-13, Amendment 39-8684 (58 FR 51770, October 5, 1993). (d) Comments Due Date We must receive comments by March 6, 2017. (e) Compliance You are responsible for performing each action required by this AD within the specified compliance time unless it has already been accomplished prior to that time. (f) Required Actions (1) Within 25 hours time-in-service (TIS), install engine and rotor tachometer markings in accordance with Part II of Schweizer Aircraft Service Bulletin B-257.1, dated May 21, 1993. (2) Within 25 hours TIS and thereafter at intervals not to exceed 150 hours TIS: (i) Visually inspect the driveshaft for corrosion, a pit, a nick, a scratch, a dent, and a crack in accordance with the Accomplishment Instructions, paragraph 3.B.(1) through 3.B.(6) of Sikorsky 269C Helicopter Alert Service Bulletin B-307, Basic Issue, dated December 18, 2014 (269C ASB), or Sikorsky 269C-1 Helicopter Alert Service Bulletin C1B-043, Basic Issue, dated December 18, 2014 (269C-1 ASB), whichever is applicable for your model helicopter, except we do not require that you use a Sikorsky recommended vendor list. If there is any corrosion, a pit, a nick, a scratch, a dent, or a crack, replace the driveshaft before further flight. (ii) If there is no corrosion and no pits, nicks, scratches, dents, and cracks, magnetic particle inspect the driveshaft for a crack in accordance with paragraph 3.C.(1) of the 269C ASB or 269C-1 ASB, whichever is applicable for your model helicopter. This magnetic particle inspection must be performed by a Level II or higher technician with the National Aerospace Standard 410 or equivalent certification who has performed a magnetic particle inspection within the last 12 months. If there is a crack, replace the driveshaft before further flight. (g) Credit for Actions Previously Completed Compliance with paragraph (a)(1) of AD 93-17-13, Amendment 39- 8684 (58 FR 51770, October 5, 1993) before the effective date of this AD is considered acceptable for compliance with the actions specified in paragraph (f)(1) of this AD. (h) Alternative Methods of Compliance (AMOC) (1) The Manager, Boston Aircraft Certification Office, FAA, may approve AMOCs for this AD. Send your proposal to: Blaine Williams, Aerospace Engineer, Boston Aircraft Certification Office, Engine & Propeller Directorate, 12 New England Executive Park, Burlington, Massachusetts 01803; telephone (781) 238-7161; email [email protected]. (2) For operations conducted under a 14 CFR part 119 operating certificate or under 14 CFR part 91, subpart K, we suggest that you notify your principal inspector, or lacking a principal inspector, the manager of the local flight standards district office or certificate holding district office before operating any aircraft complying with this AD through an AMOC. (i) Additional Information For service information identified in this AD, contact Sikorsky Aircraft Corporation, Customer Service Engineering, 124 Quarry Road, Trumbull, CT 06611; telephone 1-800-Winged-S or 203-416-4299; email [email protected]. You may review a copy of information at the FAA, Office of the Regional Counsel, Southwest Region, 10101 Hillwood Pkwy, Room 6N-321, Fort Worth, TX 76177. (j) Subject Joint Aircraft Service Component (JASC) Code: 6300, Main Rotor Drive System. Issued in Fort Worth, Texas, on December 21, 2016. Lance T. Gant, Manager, Rotorcraft Directorate, Aircraft Certification Service. [FR Doc. 2016-31622 Filed 1-4-17; 8:45 am] BILLING CODE 4910-13-P
![Federal Register / Vol. 82, No. 3 / Thursday, January 5, 2017 / Proposed Rules 1267
(h) Installation Prohibition DEPARTMENT OF TRANSPORTATION Office (telephone 800–647–5527) is in
After the effective date of this AD, do not the ADDRESSES section. Comments will
install any software standard earlier than Federal Aviation Administration be available in the AD docket shortly
SCN 5B/I into any EEC. after receipt.
14 CFR Part 39 For service information identified in
(i) Definition this proposed AD, contact Sikorsky
[Docket No. FAA–2016–6968; Directorate
For the purpose of this AD, an ‘‘engine Identifier 2015–SW–020–AD] Aircraft Corporation, Customer Service
shop visit’’ is the induction of an engine into Engineering, 124 Quarry Road,
the shop for maintenance involving the RIN 2120–AA64 Trumbull, CT 06611; telephone 1–800–
separation of any major mating flange, except Winged–S or 203–416–4299; email wcs_
that the separation of engine flanges solely Airworthiness Directives; Sikorsky
cust_service_eng.gr-sik@lmco.com. You
for the purposes of transportation without Aircraft Corporation Helicopters (Type
may review the referenced service
subsequent maintenance does not constitute Certificate Previously Held by
information at the FAA, Office of the
an engine shop visit. Schweizer Aircraft Corporation)
Regional Counsel, Southwest Region,
(j) Alternative Methods of Compliance AGENCY: Federal Aviation 10101 Hillwood Pkwy., Room 6N–321,
(AMOCs) Administration (FAA), DOT. Fort Worth, TX 76177.
(1) The Manager, Engine Certification ACTION: Notice of proposed rulemaking FOR FURTHER INFORMATION CONTACT:
Office, FAA, may approve AMOCs for this (NPRM). Blaine Williams, Aerospace Engineer,
AD. Use the procedures found in 14 CFR Boston Aircraft Certification Office,
39.19 to make your request. You may email
SUMMARY: We propose to supersede Engine & Propeller Directorate, 1200
your request to: ANE–AD–AMOC@faa.gov.
airworthiness directive (AD) 93–17–13 District Avenue, Burlington,
(2) Before using any approved AMOC, for Schweizer Aircraft Corporation and Massachusetts 01803; telephone (781)
notify your appropriate principal inspector, Hughes Helicopters, Inc. (now Sikorsky 238–7161; email blaine.williams@
or lacking a principal inspector, the manager Aircraft Corporation) (Sikorsky) Model faa.gov.
of the local flight standards district office/ TH55A, 269A, 269A–1, 269B, and 269C
SUPPLEMENTARY INFORMATION:
certificate holding district office. helicopters. AD 93–17–13 requires
installing tachometer markings and Comments Invited
(k) Related Information inspecting the driveshaft. This proposed We invite you to participate in this
(1) For more information about this AD, AD would require recurring inspections rulemaking by submitting written
contact Kevin Clark, Aerospace Engineer, of the driveshaft and would expand the comments, data, or views. We also
Engine Certification Office, FAA, Engine & applicability to include Model 269C–1 invite comments relating to the
Propeller Directorate, 1200 District Avenue, helicopters. This proposed AD is economic, environmental, energy, or
Burlington, MA 01803; phone: 781–238– prompted by reports of accidents federalism impacts that might result
7088; fax: 781–238–7199; email: because of driveshaft failures. The from adopting the proposals in this
kevin.m.clark@faa.gov. actions of this proposed AD are document. The most helpful comments
(2) PW Alert Service Bulletin PW2000 intended to prevent the unsafe reference a specific portion of the
A73–170, dated July 14, 2016, can be condition on these products. proposal, explain the reason for any
obtained from PW using the contact DATES: We must receive comments on recommended change, and include
information in paragraph (k)(3) of this AD. this proposed AD by March 6, 2017. supporting data. To ensure the docket
(3) For service information identified in
ADDRESSES: You may send comments by does not contain duplicate comments,
this AD, contact Pratt & Whitney Division,
400 Main St., East Hartford, CT 06118;
any of the following methods: commenters should send only one copy
phone: 800–565–0140; fax: 860–565–5442.
• Federal eRulemaking Docket: Go to of written comments, or if comments are
(4) You may view this referenced service
http://www.regulations.gov. Follow the filed electronically, commenters should
information at the FAA, Engine & Propeller online instructions for sending your submit only one time.
Directorate, 1200 District Avenue, comments electronically. We will file in the docket all
Burlington, MA. For information on the • Fax: 202–493–2251. comments that we receive, as well as a
availability of this material at the FAA, call • Mail: Send comments to the U.S. report summarizing each substantive
781–238–7125. Department of Transportation, Docket public contact with FAA personnel
Operations, M–30, West Building concerning this proposed rulemaking.
Issued in Burlington, Massachusetts, on Ground Floor, Room W12–140, 1200 Before acting on this proposal, we will
December 28, 2016. New Jersey Avenue SE., Washington, consider all comments we receive on or
Colleen M. D’Alessandro, DC 20590–0001. before the closing date for comments.
Manager, Engine & Propeller Directorate, • Hand Delivery: Deliver to the We will consider comments filed after
Aircraft Certification Service. ‘‘Mail’’ address between 9 a.m. and 5 the comment period has closed if it is
[FR Doc. 2016–31870 Filed 1–4–17; 8:45 am] p.m., Monday through Friday, except possible to do so without incurring
BILLING CODE 4910–13–P Federal holidays. expense or delay. We may change this
proposal in light of the comments we
Examining the AD Docket
receive.
You may examine the AD docket on
the Internet at http:// Discussion
mstockstill on DSK3G9T082PROD with PROPOSALS
www.regulations.gov or in person at the On August 31, 1993, we issued AD
Docket Operations Office between 9 93–17–13, Amendment 39–8684 (58 FR
a.m. and 5 p.m., Monday through 51770, October 5, 1993), for Schweizer
Friday, except Federal holidays. The AD Aircraft Corporation and Hughes
docket contains this proposed AD, the Helicopters, Inc., Model 269A, 269A–1,
economic evaluation, any comments 269B, 269C, and TH55A helicopters. AD
received, and other information. The 93–17–13 requires within 30 days or
street address for the Docket Operations 100 hours time-in-service (TIS),
VerDate Sep<11>2014 20:07 Jan 04, 2017 Jkt 241001 PO 00000 Frm 00037 Fmt 4702 Sfmt 4702 E:\FR\FM\05JAP1.SGM 05JAP1](https://thefederalregister.org/doc/82_FR_1270/page/1.svg)
![Federal Register / Vol. 82, No. 3 / Thursday, January 5, 2017 / Proposed Rules 1269
distribution of power and (c) Affected ADs lacking a principal inspector, the manager of
responsibilities among the various This AD supersedes AD 93–17–13, the local flight standards district office or
levels of government. Amendment 39–8684 (58 FR 51770, October certificate holding district office before
5, 1993). operating any aircraft complying with this
For the reasons discussed, I certify AD through an AMOC.
this proposed regulation: (d) Comments Due Date
(i) Additional Information
1. Is not a ‘‘significant regulatory We must receive comments by March 6,
For service information identified in this
action’’ under Executive Order 12866; 2017.
AD, contact Sikorsky Aircraft Corporation,
2. Is not a ‘‘significant rule’’ under the (e) Compliance Customer Service Engineering, 124 Quarry
DOT Regulatory Policies and Procedures You are responsible for performing each Road, Trumbull, CT 06611; telephone 1–800–
(44 FR 11034, February 26, 1979); action required by this AD within the Winged-S or 203–416–4299; email wcs_cust_
service_eng.gr-sik@lmco.com. You may
3. Will not affect intrastate aviation in specified compliance time unless it has
review a copy of information at the FAA,
Alaska to the extent that it justifies already been accomplished prior to that time.
Office of the Regional Counsel, Southwest
making a regulatory distinction; and (f) Required Actions Region, 10101 Hillwood Pkwy, Room 6N–
4. Will not have a significant (1) Within 25 hours time-in-service (TIS), 321, Fort Worth, TX 76177.
economic impact, positive or negative, install engine and rotor tachometer markings (j) Subject
on a substantial number of small entities in accordance with Part II of Schweizer Joint Aircraft Service Component (JASC)
under the criteria of the Regulatory Aircraft Service Bulletin B–257.1, dated May Code: 6300, Main Rotor Drive System.
Flexibility Act. 21, 1993.
(2) Within 25 hours TIS and thereafter at Issued in Fort Worth, Texas, on December
We prepared an economic evaluation intervals not to exceed 150 hours TIS: 21, 2016.
of the estimated costs to comply with (i) Visually inspect the driveshaft for Lance T. Gant,
this proposed AD and placed it in the corrosion, a pit, a nick, a scratch, a dent, and Manager, Rotorcraft Directorate, Aircraft
AD docket. a crack in accordance with the Certification Service.
Accomplishment Instructions, paragraph [FR Doc. 2016–31622 Filed 1–4–17; 8:45 am]
List of Subjects in 14 CFR Part 39 3.B.(1) through 3.B.(6) of Sikorsky 269C
BILLING CODE 4910–13–P
Helicopter Alert Service Bulletin B–307,
Air transportation, Aircraft, Aviation Basic Issue, dated December 18, 2014 (269C
safety, Incorporation by Reference, ASB), or Sikorsky 269C–1 Helicopter Alert
Safety. Service Bulletin C1B–043, Basic Issue, dated DEPARTMENT OF TRANSPORTATION
December 18, 2014 (269C–1 ASB), whichever
The Proposed Amendment Federal Aviation Administration
is applicable for your model helicopter,
Accordingly, under the authority except we do not require that you use a
Sikorsky recommended vendor list. If there is 14 CFR Part 39
delegated to me by the Administrator,
any corrosion, a pit, a nick, a scratch, a dent,
the FAA proposes to amend 14 CFR part or a crack, replace the driveshaft before
[Docket No. FAA–2016–9521; Directorate
39 as follows: Identifier 2016–NM–061–AD]
further flight.
(ii) If there is no corrosion and no pits, RIN 2120–AA64
PART 39—AIRWORTHINESS nicks, scratches, dents, and cracks, magnetic
DIRECTIVES particle inspect the driveshaft for a crack in Airworthiness Directives; Airbus
accordance with paragraph 3.C.(1) of the Defense and Space S.A. (Formerly
■ 1. The authority citation for part 39 269C ASB or 269C–1 ASB, whichever is Known as Construcciones
continues to read as follows: applicable for your model helicopter. This Aeronauticas, S.A.) Airplanes
magnetic particle inspection must be
Authority: 49 U.S.C. 106(g), 40113, 44701. performed by a Level II or higher technician AGENCY: Federal Aviation
§ 39.13 [Amended] with the National Aerospace Standard 410 or Administration (FAA), DOT.
equivalent certification who has performed a ACTION: Notice of proposed rulemaking
■ 2. The FAA amends § 39.13 by magnetic particle inspection within the last
(NPRM).
removing Airworthiness Directive (AD) 12 months. If there is a crack, replace the
AD 93–17–13, Amendment 39–8684 (58 driveshaft before further flight. SUMMARY: We propose to adopt a new
FR 51770, October 5, 1993) and adding (g) Credit for Actions Previously Completed airworthiness directive (AD) for all
the following new airworthiness Compliance with paragraph (a)(1) of AD Airbus Defense and Space S.A. Model
directive (AD): 93–17–13, Amendment 39–8684 (58 FR CN–235, CN–235–100, CN–235–200,
Sikorsky Aircraft Corporation (Type 51770, October 5, 1993) before the effective CN–235–300, and C–295 airplanes. This
Certificate Previously Held By date of this AD is considered acceptable for proposed AD was prompted by reports
Schweizer Aircraft Corporation): Docket compliance with the actions specified in of excessive play between bushings and
No. FAA–2016–6968; Directorate paragraph (f)(1) of this AD. their respective fitting housings at
Identifier 2015–SW–020–AD. certain elevator fittings. This proposed
(h) Alternative Methods of Compliance
(a) Applicability (AMOC) AD would require a one-time detailed
(1) The Manager, Boston Aircraft
inspection and repetitive eddy current
This AD applies to Model TH55A, 269A,
269A–1, 269B, 269C and 269C–1 helicopters, Certification Office, FAA, may approve inspections of the elevator hinge fitting
with a lower coupling driveshaft (driveshaft) AMOCs for this AD. Send your proposal to: and bracket assembly, and corrective
part number (P/N) 269–5412, 269A5504, Blaine Williams, Aerospace Engineer, Boston actions if necessary. We are proposing
mstockstill on DSK3G9T082PROD with PROPOSALS
269A5504–003, 269A5504–005, 269A5559, Aircraft Certification Office, Engine & this AD to address the unsafe condition
or 269A5559–003 installed, certificated in Propeller Directorate, 12 New England on these products.
any category. Executive Park, Burlington, Massachusetts DATES: We must receive comments on
01803; telephone (781) 238–7161; email this proposed AD by February 21, 2017.
(b) Unsafe Condition blaine.williams@faa.gov.
This AD defines the unsafe condition as (2) For operations conducted under a 14 ADDRESSES: You may send comments,
failure of a driveshaft. This condition could CFR part 119 operating certificate or under using the procedures found in 14 CFR
result in loss of power to the rotor system 14 CFR part 91, subpart K, we suggest that 11.43 and 11.45, by any of the following
and subsequent loss of helicopter control. you notify your principal inspector, or methods:
VerDate Sep<11>2014 20:07 Jan 04, 2017 Jkt 241001 PO 00000 Frm 00039 Fmt 4702 Sfmt 4702 E:\FR\FM\05JAP1.SGM 05JAP1](https://thefederalregister.org/doc/82_FR_1270/page/3.svg)
Document Created: 2018-02-01 14:51:19
Document Modified: 2018-02-01 14:51:19
| 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 | Notice of proposed rulemaking (NPRM). | |
| Dates | We must receive comments on this proposed AD by March 6, 2017. | |
| Contact | Blaine Williams, Aerospace Engineer, Boston Aircraft Certification Office, Engine & Propeller Directorate, 1200 District Avenue, Burlington, Massachusetts 01803; telephone (781) 238-7161; email [email protected] | |
| FR Citation | 82 FR 1267 | |
| RIN Number | 2120-AA64 | |
| CFR Associated | Air Transportation; Aircraft; Aviation Safety; Incorporation by Reference and Safety |
2025 Federal Register | Disclaimer | Privacy Policy
USC | CFR | eCFR