82 FR 44353 - Airworthiness Directives; Sikorsky Aircraft Corporation Helicopters
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration Federal Register Volume 82, Issue 183 (September 22, 2017)
Federal Aviation Administration
Federal Register Volume 82, Issue 183 (September 22, 2017)
| Page Range | 44353-44355 | |
| FR Document | 2017-19945 |
[Federal Register Volume 82, Number 183 (Friday, September 22, 2017)] [Proposed Rules] [Pages 44353-44355] From the Federal Register Online [www.thefederalregister.org] [FR Doc No: 2017-19945] ======================================================================= ----------------------------------------------------------------------- DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA-2017-0896; Product Identifier 2017-SW-034-AD] RIN 2120-AA64 Airworthiness Directives; Sikorsky Aircraft Corporation Helicopters AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed rulemaking (NPRM). ----------------------------------------------------------------------- SUMMARY: We propose to supersede airworthiness directive (AD) 2017-07- 02 for Sikorsky Aircraft Corporation (Sikorsky) Model 269D and Model 269D Configuration A helicopters. AD 2017-07-02 currently requires reducing the life limit of and inspecting certain drive shafts. This proposed AD would retain the requirements of AD 2017-07-02 and propose repeating the inspections. The actions of this proposed AD are intended to detect and prevent an unsafe condition on these products. DATES: We must receive comments on this proposed AD by November 21, 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 by searching for and locating Docket No. FAA-2017- 0896; 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 rule, 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 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: Michael Schwetz, Aviation Safety Engineer, Boston ACO Branch, Compliance and Airworthiness Division, FAA, 1200 District Avenue, Burlington, Massachusetts 01803; telephone (781) 238-7761; 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 March 20, 2017, we issued a Final rule; request for comments to add AD 2017-07-02, Amendment 39-18840 (82 FR 15120, March 27, 2017) for Sikorsky Model 269D and Model 269D Configuration A helicopters with a KAflex engine side drive shaft part number (P/N) SKCP2738-7 and KAflex pulley side drive shaft P/N SKCP2738-5 installed. AD 2017-07-02 requires reducing the life limit of the drive shafts and performing several inspections of the drive shafts within 25 hours time-in-service (TIS). AD 2017-07-02 also specifies replacing the drive shaft assemblies as an optional terminating action for the requirements of the AD. AD 2017-07-02 was prompted by four incidents involving failure of the engine side drive shaft. The actions required by AD 2017-07-02 are intended to prevent failure of the drive shaft, loss of rotor drive, and subsequent loss of control of the helicopter. This NPRM would retain the requirements of AD 2017-07-02 but would require that some of the inspections be repeated every 100 hours TIS or 400 hours TIS. Repeating these inspections is necessary to detect and prevent the unsafe condition. Because these proposed requirements are for longer intervals, we are providing the public an opportunity to comment. FAA's Determination We are proposing this AD because we evaluated all the relevant information and determined the unsafe condition described previously is likely to exist or develop in other products of these same type designs. Related Service Information We reviewed Appendix B to Sikorsky S-330 Model 269D Helicopter Basic Handbook of Maintenance Instructions No. CSP-D-2, dated February 1, 1993, and revised October 15, 2014; and Appendix B to Sikorsky S-333 Model 269D Config. ``A'' Helicopter Basic Handbook of Maintenance Instructions No. CSP-D-9, dated July 20, 2001, and revised October 15, 2014. This service information specifies repetitive inspection procedures, overhaul and retirement schedules, and weight and balance procedures. The Airworthiness Limitations section, which is included in this service information, contains the life limits for drive shaft assembly P/Ns SKCP2738-5 and SKCP2738-7. We also reviewed Sikorsky 269D Helicopter Alert Service Bulletin DB-052, Basic Issue, dated January 16, 2014, which distributes the service life reduction information and implements a new 1,200-hour overhaul inspection for drive shaft assembly P/Ns SKCP2738-3, SKCP2738- 5, and SKCP2738-7. [[Page 44354]] Proposed AD Requirements This proposed AD would require, before further flight: Removing from service any engine side drive shaft P/N SKCP2738-7 and pulley side drive shaft P/N SKCP2738-5 that has reached or exceeded its new life limit as follows: [cir] 6,000 hours TIS for Model 269D helicopters; [cir] 1,200 hours TIS for Model 269D Configuration A helicopters; and [cir] 1,200 hours TIS if the parts have ever been interchanged between the two model configurations. This proposed AD would also require: Within 25 hours TIS, and thereafter at intervals not to exceed 25 hours TIS, inspecting the lower pulley to engine alignment, and if there is any interference with the rotation of the belt drive alignment tool, adjusting the engine elevation alignment before further flight. Within 25 hours TIS, and thereafter at intervals not to exceed 100 hours TIS, inspecting the KAflex drive shaft alignment and inspecting the engine side and pulley side drive shafts for a crack, any corrosion or pitting, a nick, a dent, and a scratch. Within 25 hours TIS, and thereafter at intervals not to exceed 400 hours TIS, inspecting each joint for movement; inspecting each joint for fretting corrosion and each frame and mount bolt torque stripe for movement; and inspecting each joint for fretting, for a crack around both the bolt head and washer side, and around the nut and washer side, and each inside and outside corner radii and radii edges on both sides of each frame for a crack. If the drive shaft fails any of the above inspections, this proposed AD would require replacing both the engine side and pulley side drive shafts before further flight. This proposed AD also specifies installing KAflex engine side coupling assembly P/N SKCP2738-9 and KAflex pulley side coupling assembly P/N SKCP2738-101 as an optional terminating action for the requirements of this AD. Differences Between This Proposed AD and the Service Information The Sikorsky service information specifies a drive shaft assembly service life of 3,000 hours TIS with a 1,200 hour overhaul inspection for Model 269D Configuration A helicopters, while this proposed AD specifies a service life of 1,200 hours TIS. The Sikorsky service information specifies different inspection procedures if there is spline engagement interference or resistance while inspecting the drive shaft alignment. This proposed AD specifies replacing both the engine side and pulley side drive shafts if there is any spline engagement interference or resistance. The Sikorsky service information specifies inspecting the working fastener condition without any specific succeeding action regarding the inspection. This proposed AD specifies replacing both the engine side and pulley side drive shafts if there is any joint movement. The Sikorsky service information specifies returning the drive shaft assembly to Sikorsky if there is fretting dust or red metallic residue at a joint. This proposed AD specifies replacing both the engine side and pulley side drive shafts if there is any fretting corrosion. Costs of Compliance We estimate that this proposed AD would affect 18 helicopters of U.S. Registry. We estimate that operators may incur the following costs in order to comply with this AD. Labor costs are estimated at $85 per work-hour. Removing the engine side and pulley side drive shafts that have reached the new life limit would take about 4 work-hours for a cost of $340 per helicopter. Inspecting the lower pulley to engine alignment using the belt alignment tool would take about 0.5 work-hour for an estimated cost of $43 per helicopter and $774 for the U.S. fleet per inspection cycle. Adjusting the engine elevation alignment would take about 0.5 work-hour for an estimated cost of $43 per helicopter. Inspecting the drive shaft alignment by checking spline engagement would take about 1 work-hour for a cost of $85 per helicopter and $1,530 for the U.S. fleet per inspection cycle. Inspecting the drive shafts for damage would take about 1 work-hour for an estimated cost of $85 per helicopter and $1,530 for the U.S. fleet per inspection cycle. Inspecting the joints would take about 1 work-hour for an estimated cost of $85 per helicopter and $1,530 for the U.S. fleet per inspection cycle. Replacing the engine side and pulley side drive shafts, if required, would take about 8 work-hours and parts would cost about $20,000, for an estimated cost of $20,680 per helicopter. 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, 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) [[Page 44355]] 2017-07-02, Amendment 39-18840 (82 FR 15120, March 27, 2017), and adding the following new AD: Sikorsky Aircraft Corporation (Sikorsky): Docket No. FAA-2017-0896; Product Identifier 2017-SW-034-AD. (a) Applicability This AD applies to Sikorsky Model 269D and Model 269D Configuration A helicopters with a KAflex engine side drive shaft part number (P/N) SKCP2738-7 and KAflex pulley side drive shaft P/N SKCP2738-5 installed, certificated in any category. (b) Unsafe Condition This AD defines the unsafe condition as failure of a drive shaft. This condition could result in loss of rotor drive and subsequent loss of control of the helicopter. (c) Affected ADs This AD supersedes AD 2017-07-02, Amendment 39-18840 (82 FR 15120, March 27, 2017). (d) Comments Due Date We must receive comments by November 21, 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) Before further flight: (i) For Model 269D helicopters, remove from service any KAflex engine side drive shaft P/N SKCP2738-7 and any KAflex pulley side drive shaft P/N SKCP2738-5 that has 6,000 or more hours time-in- service (TIS). Thereafter, remove from service any KAflex engine side drive shaft P/N SKCP2738-7 and any KAflex pulley side drive shaft P/N SKCP2738-5 before accumulating 6,000 hours TIS. (ii) For Model 269D Configuration A helicopters, remove from service any KAflex engine side drive shaft P/N SKCP2738-7 and any KAflex pulley side drive shaft P/N SKCP2738-5 that has 1,200 or more hours TIS. Thereafter, remove from service any KAflex engine side drive shaft P/N SKCP2738-7 and any KAflex pulley side drive shaft P/ N SKCP2738-5 before accumulating 1,200 hours TIS. (iii) If interchanged between Model 269D and Model 269D Configuration A helicopters, remove from service any KAflex engine side drive shaft P/N SKCP2738-7 and any KAflex pulley side drive shaft P/N SKCP2738-5 that has 1,200 or more hours TIS. Thereafter, if interchanged between Model 269D and Model 269D Configuration A helicopters, remove from service any KAflex engine side drive shaft P/N SKCP2738-7 and any KAflex pulley side drive shaft P/N SKCP2738-5 before accumulating 1,200 hours TIS. (2) Within 25 hours TIS, and thereafter at intervals not to exceed 25 hours TIS, using a belt drive alignment tool 269T3303-003, inspect the lower pulley to engine alignment by engaging the tool on the drive shaft and inserting in the lower pulley bore. Rotate the tool 360[deg] around the drive shaft and inspect for interference. If there is any interference with the rotation of the tool, before further flight, adjust the engine elevation alignment to eliminate the interference. (3) Within 25 hours TIS, and thereafter at intervals not to exceed 100 hours TIS: (i) Remove the drive shaft to adapter bolt and inspect the drive shaft alignment. Engage and disengage the splines a minimum of 3 times by sliding the engine power output shaft in and out of the engine. Inspect the alignment at each 90[deg] interval by rotating the lower pulley with the power shaft disengaged. Determine whether the adapter slides on and off the drive shaft splines without spline engagement interference or resistance along the entire length of movement. If there is any spline engagement interference or resistance, before further flight, replace both the engine side and pulley side drive shafts. (ii) Inspect each drive shaft for a crack, any corrosion or pitting, a nick, a dent, and a scratch. If there is a crack, any corrosion or pitting, a nick, a dent, or a scratch that exceeds allowable limits, before further flight, replace both the engine side and pulley side drive shafts. (4) Within 25 hours TIS, and thereafter at intervals not to exceed 400 hours TIS, remove the engine side drive shaft and pulley side drive shaft and perform the following: (i) Inspect each flex frame (frame) bolted joint (joint) for movement by hand. If there is any movement, before further flight, replace both the engine side and pulley side drive shafts. (ii) Visually inspect each joint for fretting corrosion (which might be indicated by metallic particles) and each frame and mount bolt torque stripe for movement. If there is any fretting corrosion or torque stripe movement, before further flight, replace both the engine side and pulley side drive shafts. (iii) Using a 10x or higher power magnifying glass, visually inspect each joint for fretting and for a crack around the bolt head and washer side, and around the nut and washer side. Also inspect both sides of each frame for a crack on the inside and outside corner radii and radii edge (four). If there is any fretting, a crack at any point over the full circumference (360[deg]) of the bolt head and washer side or the nut and washer side, or a crack in any of the corner radii edges, before further flight, replace both the engine side and pulley side drive shafts. (5) As an optional terminating action to the repetitive inspections in this AD, you may install KAflex engine side drive shaft P/N SKCP2738-9 and KAflex pulley side drive shaft P/N SKCP2738-101. (g) Alternative Methods of Compliance (AMOCs) (1) The Manager, Boston ACO Branch, FAA, may approve AMOCs for this AD. Send your proposal to: Michael Schwetz, Aviation Safety Engineer, Boston ACO Branch, Compliance and Airworthiness Division, FAA, 1200 District Avenue, Burlington, Massachusetts 01803; telephone (781) 238-7761; 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. (h) Additional Information Appendix B of Sikorsky S-330 Model 269D Helicopter Basic Handbook of Maintenance Instructions, No. CSP-D-2, dated February 1, 1993, and revised October 15, 2014; Appendix B of Sikorsky S-330 Model 269D Config. ``A'' Helicopter Basic Handbook of Maintenance Instructions, No. CSP-D-9, dated July 20, 2001, and revised October 15, 2014; and Sikorsky 269D Helicopter Alert Service Bulletin DB- 052, Basic Issue, dated January 16, 2014, which are not incorporated by reference, contain additional information about the subject of this AD. 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 the service information at the FAA, Office of the Regional Counsel, Southwest Region, 10101 Hillwood Pkwy., Room 6N-321, Fort Worth, TX 76177. (i) Subject Joint Aircraft Service Component (JASC) Code: 6310, Engine/ Transmission Coupling. Issued in Fort Worth, Texas, on September 11, 2017. Lance T. Gant, Director, Compliance & Airworthiness Division, Aircraft Certification Service. [FR Doc. 2017-19945 Filed 9-21-17; 8:45 am] BILLING CODE 4910-13-P
![Federal Register / Vol. 82, No. 183 / Friday, September 22, 2017 / Proposed Rules 44353
Issued in Washington, DC, on August 29, p.m., Monday through Friday, except 2017–07–02, Amendment 39–18840 (82
2017. Federal holidays. The AD docket FR 15120, March 27, 2017) for Sikorsky
Kathleen B. Hogan, contains this proposed AD, the Model 269D and Model 269D
Deputy Assistant Secretary for Energy economic evaluation, any comments Configuration A helicopters with a
Efficiency, Energy Efficiency and Renewable received and other information. The KAflex engine side drive shaft part
Energy. street address for the Docket Operations number (P/N) SKCP2738–7 and KAflex
[FR Doc. 2017–20225 Filed 9–21–17; 8:45 am] Office (telephone 800–647–5527) is in pulley side drive shaft P/N SKCP2738–
BILLING CODE 6450–01–P the ADDRESSES section. Comments will 5 installed. AD 2017–07–02 requires
be available in the AD docket shortly reducing the life limit of the drive shafts
after receipt. and performing several inspections of
DEPARTMENT OF TRANSPORTATION For service information identified in the drive shafts within 25 hours time-in-
this proposed rule, contact Sikorsky service (TIS). AD 2017–07–02 also
Federal Aviation Administration Aircraft Corporation, Customer Service specifies replacing the drive shaft
Engineering, 124 Quarry Road, assemblies as an optional terminating
14 CFR Part 39 Trumbull, CT 06611; telephone 1–800– action for the requirements of the AD.
[Docket No. FAA–2017–0896; Product Winged–S or 203–416–4299; email wcs_ AD 2017–07–02 was prompted by four
Identifier 2017–SW–034–AD] cust_service_eng.gr-sik@lmco.com. You incidents involving failure of the engine
may review service information at the side drive shaft. The actions required by
RIN 2120–AA64 FAA, Office of the Regional Counsel, AD 2017–07–02 are intended to prevent
Southwest Region, 10101 Hillwood failure of the drive shaft, loss of rotor
Airworthiness Directives; Sikorsky
Pkwy., Room 6N–321, Fort Worth, TX drive, and subsequent loss of control of
Aircraft Corporation Helicopters
76177. the helicopter.
AGENCY: Federal Aviation FOR FURTHER INFORMATION CONTACT: This NPRM would retain the
Administration (FAA), DOT. Michael Schwetz, Aviation Safety requirements of AD 2017–07–02 but
ACTION: Notice of proposed rulemaking Engineer, Boston ACO Branch, would require that some of the
(NPRM). Compliance and Airworthiness inspections be repeated every 100 hours
Division, FAA, 1200 District Avenue, TIS or 400 hours TIS. Repeating these
SUMMARY: We propose to supersede Burlington, Massachusetts 01803; inspections is necessary to detect and
airworthiness directive (AD) 2017–07– telephone (781) 238–7761; email prevent the unsafe condition. Because
02 for Sikorsky Aircraft Corporation michael.schwetz@faa.gov. these proposed requirements are for
(Sikorsky) Model 269D and Model 269D longer intervals, we are providing the
SUPPLEMENTARY INFORMATION:
Configuration A helicopters. AD 2017– public an opportunity to comment.
07–02 currently requires reducing the Comments Invited
life limit of and inspecting certain drive FAA’s Determination
We invite you to participate in this
shafts. This proposed AD would retain We are proposing this AD because we
rulemaking by submitting written
the requirements of AD 2017–07–02 and evaluated all the relevant information
comments, data, or views. We also
propose repeating the inspections. The and determined the unsafe condition
invite comments relating to the
actions of this proposed AD are described previously is likely to exist or
economic, environmental, energy, or
intended to detect and prevent an develop in other products of these same
federalism impacts that might result
unsafe condition on these products. type designs.
from adopting the proposals in this
DATES: We must receive comments on document. The most helpful comments Related Service Information
this proposed AD by November 21, reference a specific portion of the
2017. proposal, explain the reason for any We reviewed Appendix B to Sikorsky
ADDRESSES: You may send comments by recommended change, and include S–330 Model 269D Helicopter Basic
any of the following methods: supporting data. To ensure the docket Handbook of Maintenance Instructions
• Federal eRulemaking Docket: Go to does not contain duplicate comments, No. CSP–D–2, dated February 1, 1993,
http://www.regulations.gov. Follow the commenters should send only one copy and revised October 15, 2014; and
online instructions for sending your of written comments, or if comments are Appendix B to Sikorsky S–333 Model
comments electronically. filed electronically, commenters should 269D Config. ‘‘A’’ Helicopter Basic
• Fax: 202–493–2251. submit only one time. Handbook of Maintenance Instructions
• Mail: Send comments to the U.S. We will file in the docket all No. CSP–D–9, dated July 20, 2001, and
Department of Transportation, Docket comments that we receive, as well as a revised October 15, 2014. This service
Operations, M–30, West Building report summarizing each substantive information specifies repetitive
Ground Floor, Room W12–140, 1200 public contact with FAA personnel inspection procedures, overhaul and
New Jersey Avenue SE., Washington, concerning this proposed rulemaking. retirement schedules, and weight and
DC 20590–0001. Before acting on this proposal, we will balance procedures. The Airworthiness
• Hand Delivery: Deliver to the consider all comments we receive on or Limitations section, which is included
‘‘Mail’’ address between 9 a.m. and 5 before the closing date for comments. in this service information, contains the
p.m., Monday through Friday, except We will consider comments filed after life limits for drive shaft assembly P/Ns
Federal holidays. the comment period has closed if it is SKCP2738–5 and SKCP2738–7.
possible to do so without incurring We also reviewed Sikorsky 269D
Examining the AD Docket Helicopter Alert Service Bulletin DB–
expense or delay. We may change this
You may examine the AD docket on proposal in light of the comments we 052, Basic Issue, dated January 16, 2014,
the Internet at http:// receive. which distributes the service life
www.regulations.gov by searching for reduction information and implements a
and locating Docket No. FAA–2017– Discussion new 1,200-hour overhaul inspection for
0896; or in person at the Docket On March 20, 2017, we issued a Final drive shaft assembly P/Ns SKCP2738–3,
Operations Office between 9 a.m. and 5 rule; request for comments to add AD SKCP2738–5, and SKCP2738–7.
VerDate Sep<11>2014 16:19 Sep 21, 2017 Jkt 241001 PO 00000 Frm 00007 Fmt 4702 Sfmt 4702 E:\FR\FM\22SEP1.SGM 22SEP1](https://thefederalregister.org/doc/82_FR_44536/page/1.svg)
![44354 Federal Register / Vol. 82, No. 183 / Friday, September 22, 2017 / Proposed Rules
Proposed AD Requirements interference or resistance while detail the scope of the Agency’s
This proposed AD would require, inspecting the drive shaft alignment. authority.
This proposed AD specifies replacing We are issuing this rulemaking under
before further flight:
both the engine side and pulley side the authority described in ‘‘Subtitle VII,
• Removing from service any engine
drive shafts if there is any spline Part A, Subpart III, Section 44701:
side drive shaft P/N SKCP2738–7 and
engagement interference or resistance. General requirements.’’ Under that
pulley side drive shaft P/N SKCP2738–
The Sikorsky service information section, Congress charges the FAA with
5 that has reached or exceeded its new
specifies inspecting the working promoting safe flight of civil aircraft in
life limit as follows:
fastener condition without any specific air commerce by prescribing regulations
Æ 6,000 hours TIS for Model 269D
succeeding action regarding the for practices, methods, and procedures
helicopters; the Administrator finds necessary for
inspection. This proposed AD specifies
Æ 1,200 hours TIS for Model 269D safety in air commerce. This regulation
replacing both the engine side and
Configuration A helicopters; and pulley side drive shafts if there is any is within the scope of that authority
Æ 1,200 hours TIS if the parts have joint movement. because it addresses an unsafe condition
ever been interchanged between the two The Sikorsky service information that is likely to exist or develop on
model configurations. specifies returning the drive shaft products identified in this rulemaking
This proposed AD would also require: assembly to Sikorsky if there is fretting action.
• Within 25 hours TIS, and thereafter dust or red metallic residue at a joint.
at intervals not to exceed 25 hours TIS, This proposed AD specifies replacing Regulatory Findings
inspecting the lower pulley to engine both the engine side and pulley side We determined that this proposed AD
alignment, and if there is any drive shafts if there is any fretting would not have federalism implications
interference with the rotation of the belt corrosion. under Executive Order 13132. This
drive alignment tool, adjusting the proposed AD would not have a
engine elevation alignment before Costs of Compliance substantial direct effect on the States, on
further flight. We estimate that this proposed AD the relationship between the national
• Within 25 hours TIS, and thereafter would affect 18 helicopters of U.S. Government and the States, or on the
at intervals not to exceed 100 hours TIS, Registry. We estimate that operators distribution of power and
inspecting the KAflex drive shaft may incur the following costs in order responsibilities among the various
alignment and inspecting the engine to comply with this AD. Labor costs are levels of government.
side and pulley side drive shafts for a estimated at $85 per work-hour. For the reasons discussed, I certify
crack, any corrosion or pitting, a nick, Removing the engine side and pulley this proposed regulation:
a dent, and a scratch. side drive shafts that have reached the 1. Is not a ‘‘significant regulatory
• Within 25 hours TIS, and thereafter new life limit would take about 4 work- action’’ under Executive Order 12866;
at intervals not to exceed 400 hours TIS, hours for a cost of $340 per helicopter. 2. Is not a ‘‘significant rule’’ under the
inspecting each joint for movement; Inspecting the lower pulley to engine DOT Regulatory Policies and Procedures
inspecting each joint for fretting alignment using the belt alignment tool (44 FR 11034, February 26, 1979);
corrosion and each frame and mount would take about 0.5 work-hour for an 3. Will not affect intrastate aviation in
bolt torque stripe for movement; and estimated cost of $43 per helicopter and Alaska to the extent that it justifies
inspecting each joint for fretting, for a $774 for the U.S. fleet per inspection making a regulatory distinction; and
crack around both the bolt head and cycle. Adjusting the engine elevation 4. Will not have a significant
washer side, and around the nut and alignment would take about 0.5 work- economic impact, positive or negative,
washer side, and each inside and hour for an estimated cost of $43 per on a substantial number of small entities
outside corner radii and radii edges on helicopter. Inspecting the drive shaft under the criteria of the Regulatory
both sides of each frame for a crack. alignment by checking spline Flexibility Act.
If the drive shaft fails any of the above engagement would take about 1 work- We prepared an economic evaluation
inspections, this proposed AD would hour for a cost of $85 per helicopter and of the estimated costs to comply with
require replacing both the engine side $1,530 for the U.S. fleet per inspection this proposed AD and placed it in the
and pulley side drive shafts before cycle. Inspecting the drive shafts for AD docket.
further flight. damage would take about 1 work-hour List of Subjects in 14 CFR Part 39
This proposed AD also specifies for an estimated cost of $85 per
installing KAflex engine side coupling Air transportation, Aircraft, Aviation
helicopter and $1,530 for the U.S. fleet
assembly P/N SKCP2738–9 and KAflex safety, Incorporation by reference,
per inspection cycle. Inspecting the
pulley side coupling assembly P/N Safety.
joints would take about 1 work-hour for
SKCP2738–101 as an optional an estimated cost of $85 per helicopter The Proposed Amendment
terminating action for the requirements and $1,530 for the U.S. fleet per Accordingly, under the authority
of this AD. inspection cycle. Replacing the engine delegated to me by the Administrator,
Differences Between This Proposed AD side and pulley side drive shafts, if the FAA proposes to amend 14 CFR part
and the Service Information required, would take about 8 work- 39 as follows:
hours and parts would cost about
The Sikorsky service information $20,000, for an estimated cost of PART 39—AIRWORTHINESS
specifies a drive shaft assembly service $20,680 per helicopter. DIRECTIVES
life of 3,000 hours TIS with a 1,200 hour
overhaul inspection for Model 269D Authority for This Rulemaking ■ 1. The authority citation for part 39
Configuration A helicopters, while this Title 49 of the United States Code continues to read as follows:
proposed AD specifies a service life of specifies the FAA’s authority to issue Authority: 49 U.S.C. 106(g), 40113, 44701.
1,200 hours TIS. rules on aviation safety. Subtitle I,
The Sikorsky service information section 106, describes the authority of § 39.13 [Amended]
specifies different inspection the FAA Administrator. ‘‘Subtitle VII: ■ 2. The FAA amends § 39.13 by
procedures if there is spline engagement Aviation Programs,’’ describes in more removing Airworthiness Directive (AD)
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![Federal Register / Vol. 82, No. 183 / Friday, September 22, 2017 / Proposed Rules 44355
2017–07–02, Amendment 39–18840 (82 tool 360° around the drive shaft and inspect 14 CFR part 91, subpart K, we suggest that
FR 15120, March 27, 2017), and adding for interference. If there is any interference you notify your principal inspector, or
the following new AD: with the rotation of the tool, before further lacking a principal inspector, the manager of
flight, adjust the engine elevation alignment the local flight standards district office or
Sikorsky Aircraft Corporation (Sikorsky): to eliminate the interference. certificate holding district office before
Docket No. FAA–2017–0896; Product (3) Within 25 hours TIS, and thereafter at operating any aircraft complying with this
Identifier 2017–SW–034–AD. intervals not to exceed 100 hours TIS: AD through an AMOC.
(a) Applicability (i) Remove the drive shaft to adapter bolt
and inspect the drive shaft alignment. Engage (h) Additional Information
This AD applies to Sikorsky Model 269D and disengage the splines a minimum of 3 Appendix B of Sikorsky S–330 Model 269D
and Model 269D Configuration A helicopters times by sliding the engine power output Helicopter Basic Handbook of Maintenance
with a KAflex engine side drive shaft part shaft in and out of the engine. Inspect the Instructions, No. CSP–D–2, dated February 1,
number (P/N) SKCP2738–7 and KAflex alignment at each 90° interval by rotating the 1993, and revised October 15, 2014;
pulley side drive shaft P/N SKCP2738–5 lower pulley with the power shaft Appendix B of Sikorsky S–330 Model 269D
installed, certificated in any category. disengaged. Determine whether the adapter Config. ‘‘A’’ Helicopter Basic Handbook of
(b) Unsafe Condition slides on and off the drive shaft splines Maintenance Instructions, No. CSP–D–9,
without spline engagement interference or dated July 20, 2001, and revised October 15,
This AD defines the unsafe condition as
resistance along the entire length of 2014; and Sikorsky 269D Helicopter Alert
failure of a drive shaft. This condition could
movement. If there is any spline engagement Service Bulletin DB–052, Basic Issue, dated
result in loss of rotor drive and subsequent
interference or resistance, before further January 16, 2014, which are not incorporated
loss of control of the helicopter.
flight, replace both the engine side and by reference, contain additional information
(c) Affected ADs pulley side drive shafts. about the subject of this AD. For service
This AD supersedes AD 2017–07–02, (ii) Inspect each drive shaft for a crack, any information identified in this AD, contact
Amendment 39–18840 (82 FR 15120, March corrosion or pitting, a nick, a dent, and a Sikorsky Aircraft Corporation, Customer
27, 2017). scratch. If there is a crack, any corrosion or Service Engineering, 124 Quarry Road,
pitting, a nick, a dent, or a scratch that Trumbull, CT 06611; telephone 1–800–
(d) Comments Due Date exceeds allowable limits, before further Winged–S or 203–416–4299; email wcs_cust_
We must receive comments by November flight, replace both the engine side and service_eng.gr-sik@lmco.com. You may
21, 2017. pulley side drive shafts. review the service information at the FAA,
(4) Within 25 hours TIS, and thereafter at Office of the Regional Counsel, Southwest
(e) Compliance intervals not to exceed 400 hours TIS, Region, 10101 Hillwood Pkwy., Room 6N–
You are responsible for performing each remove the engine side drive shaft and pulley 321, Fort Worth, TX 76177.
action required by this AD within the side drive shaft and perform the following:
(i) Inspect each flex frame (frame) bolted (i) Subject
specified compliance time unless it has
already been accomplished prior to that time. joint (joint) for movement by hand. If there Joint Aircraft Service Component (JASC)
is any movement, before further flight, Code: 6310, Engine/Transmission Coupling.
(f) Required Actions replace both the engine side and pulley side Issued in Fort Worth, Texas, on September
(1) Before further flight: drive shafts. 11, 2017.
(i) For Model 269D helicopters, remove (ii) Visually inspect each joint for fretting
from service any KAflex engine side drive corrosion (which might be indicated by Lance T. Gant,
shaft P/N SKCP2738–7 and any KAflex metallic particles) and each frame and mount Director, Compliance & Airworthiness
pulley side drive shaft P/N SKCP2738–5 that bolt torque stripe for movement. If there is Division, Aircraft Certification Service.
has 6,000 or more hours time-in-service any fretting corrosion or torque stripe [FR Doc. 2017–19945 Filed 9–21–17; 8:45 am]
(TIS). Thereafter, remove from service any movement, before further flight, replace both BILLING CODE 4910–13–P
KAflex engine side drive shaft P/N the engine side and pulley side drive shafts.
SKCP2738–7 and any KAflex pulley side (iii) Using a 10x or higher power
drive shaft P/N SKCP2738–5 before magnifying glass, visually inspect each joint DEPARTMENT OF TRANSPORTATION
accumulating 6,000 hours TIS. for fretting and for a crack around the bolt
(ii) For Model 269D Configuration A head and washer side, and around the nut Federal Aviation Administration
helicopters, remove from service any KAflex and washer side. Also inspect both sides of
engine side drive shaft P/N SKCP2738–7 and each frame for a crack on the inside and
any KAflex pulley side drive shaft P/N outside corner radii and radii edge (four). If 14 CFR Part 39
SKCP2738–5 that has 1,200 or more hours there is any fretting, a crack at any point over [Docket No. FAA–2017–0658; Product
TIS. Thereafter, remove from service any the full circumference (360°) of the bolt head Identifier 2017–NE–20–AD]
KAflex engine side drive shaft P/N and washer side or the nut and washer side,
SKCP2738–7 and any KAflex pulley side or a crack in any of the corner radii edges, RIN 2120–AA64
drive shaft P/N SKCP2738–5 before before further flight, replace both the engine
accumulating 1,200 hours TIS. side and pulley side drive shafts. Airworthiness Directives; GE Aviation
(iii) If interchanged between Model 269D (5) As an optional terminating action to the Czech s.r.o. Turboprop Engines
and Model 269D Configuration A helicopters, repetitive inspections in this AD, you may
remove from service any KAflex engine side install KAflex engine side drive shaft P/N AGENCY: Federal Aviation
drive shaft P/N SKCP2738–7 and any KAflex SKCP2738–9 and KAflex pulley side drive Administration (FAA), DOT.
pulley side drive shaft P/N SKCP2738–5 that shaft P/N SKCP2738–101. ACTION: Notice of proposed rulemaking
has 1,200 or more hours TIS. Thereafter, if (NPRM).
interchanged between Model 269D and (g) Alternative Methods of Compliance
Model 269D Configuration A helicopters, (AMOCs) SUMMARY: We propose to adopt a new
remove from service any KAflex engine side (1) The Manager, Boston ACO Branch, airworthiness directive (AD) for certain
drive shaft P/N SKCP2738–7 and any KAflex FAA, may approve AMOCs for this AD. Send GE Aviation Czech s.r.o. M601D–11,
pulley side drive shaft P/N SKCP2738–5 your proposal to: Michael Schwetz, Aviation M601E–11, M601E–11A, M601E–11AS,
before accumulating 1,200 hours TIS. Safety Engineer, Boston ACO Branch,
M601E–11S, and M601F turboprop
(2) Within 25 hours TIS, and thereafter at Compliance and Airworthiness Division,
intervals not to exceed 25 hours TIS, using FAA, 1200 District Avenue, Burlington, engines. This proposed AD was
a belt drive alignment tool 269T3303–003, Massachusetts 01803; telephone (781) 238– prompted by a review that determined
inspect the lower pulley to engine alignment 7761; email michael.schwetz@faa.gov. that certain power turbine (PT) rotors
by engaging the tool on the drive shaft and (2) For operations conducted under a 14 have less overspeed margin than
inserting in the lower pulley bore. Rotate the CFR part 119 operating certificate or under originally declared during product
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Document Created: 2017-09-22 01:52:31
Document Modified: 2017-09-22 01:52:31
| 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 November 21, 2017. | |
| Contact | Michael Schwetz, Aviation Safety Engineer, Boston ACO Branch, Compliance and Airworthiness Division, FAA, 1200 District Avenue, Burlington, Massachusetts 01803; telephone (781) 238-7761; email [email protected] | |
| FR Citation | 82 FR 44353 | |
| RIN Number | 2120-AA64 | |
| CFR Associated | Air Transportation; Aircraft; Aviation Safety; Incorporation by Reference and Safety |
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