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Federal Register / Vol. 86, No. 105 / Thursday, June 3, 2021 / Proposed Rules AS355F1, AS355F2, AS355N, and AS355NP
helicopters, certificated in any category, with litter kits installed having any part number specified in paragraphs c1 through 3 of this AD:
1 Part number P/N 350200034 lefthand litter kit.
2 P/N 350200194 left-hand litter kit.
3 P/N 350200144 right-hand litter kit.
d Subject Joint Aircraft Service Component JASC
Code: 6700, Rotorcraft Flight Control.
e Unsafe Condition This AD was prompted by reports that the lanyards bead chain tethers, which hold the quick release pins to the forward bracket assembly of certain litter kits, can loop around the directional control pedal stubs, limiting the movement of the pedals, which affect the control of the flight. The FAA is issuing this AD to address interference between the litter kit lanyards and the flight controls. The unsafe condition, if not addressed, could result in limited flight control movement and difficulty controlling the helicopter.

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f Compliance Comply with this AD within the compliance times specified, unless already done.
g Required Actions 1 For litter kits having any part specified in paragraphs c1 through 3 of this AD:
Prior to each flight until the modification required by paragraph g2 of this AD is accomplished, do a pre-flight check to determine if there is interference e.g., limited movement of the pedals due to the lanyards that hold the quick release pins to the forward bracket assembly being looped around the directional control pedal stubs between the lanyards that hold the quick release pins to the forward bracket assembly and the pedals. If interference is found, before further flight, do the modification required by paragraph g2 of this AD for the affected litter kit. The pre-flight check may be performed by the owner/operator pilot holding at least a private pilot certificate and must be entered into the aircraft records showing compliance with this AD in accordance with 43.9a1
through 4 and 91.417a2v. The record must be maintained as required by 91.417, 121.380, or 135.439.
2 Within 25 hours time-in-service TIS
after the effective date of this AD, modify the attachment location of the lanyard for litter kits having any part specified in paragraphs c1 through 3 of this AD. Do the modification in accordance with paragraph 3.B.2., Procedure, of the Accomplishment Instructions of Airbus Helicopters Service Bulletin SBAHCA128, Revision 0, dated March 24, 2017.
Note 1 to paragraph g: Litter kits, P/N
350200034 and P/N 350200194, may have been installed under STC SR00406NY for Model AS355E, AS355F, AS355F1, AS355F2, AS355N, and AS355NP helicopters or STC
SR00407NY for Model AS350B, AS350BA, AS350B1, AS350B2, AS350B3, and AS350D

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helicopters. Litter kit P/N 350200144 may have been installed under STC SR00458NY
for Model AS350BA, AS350B2, and AS350B3 helicopters.

As of the effective date of this AD, no person may install a litter kit having a part number identified in paragraphs c1
through 3 of this AD, on any helicopter, unless the installation is modified as required by paragraph g2 of this AD.
i Alternative Methods of Compliance AMOCs 1 The Manager, International Validation Branch, 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 manager of the International Validation Branch, send it to the attention of the person identified in paragraph j1 of this AD.
Information may be emailed to: 9-AVS-AIR730-AMOC@faa.gov.
2 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.
j Related Information 1 For more information about this AD, contact Andrea Jimenez, Aerospace Engineer, COS Program Management Section, Operational Safety Branch, Compliance &
Airworthiness Division, FAA, 1600 Stewart Ave., Mail Stop: Room 410, Westbury, NY
11590; telephone 516 2287330; email andrea.jimenez@faa.gov.
2 For information about AMOCs, contact the Manager, International Validation Branch, FAA, 10101 Hillwood Pkwy., Fort Worth, TX 76177; telephone 817 2225110;
email 9-AVS-AIR-730-AMOC@faa.gov.
3 For service information identified in this AD, contact Airbus Helicopters, 2701
North Forum Drive, Grand Prairie, TX 75052;
telephone 972 6410000 or 800 2320323;
fax 972 6413775; or at https
www.airbus.com/helicopters/services/
technical-support.html. You may view this referenced service information at the FAA, Office of the Regional Counsel, Southwest Region, 10101 Hillwood Pkwy., Room 6N
321, Fort Worth, TX 76177. For information on the availability of this material at the FAA, call 817 2225110.
4 The subject of this AD is addressed in Transport Canada AD CF201737 dated December 19, 2017. You may view the Transport Canada AD on the internet at https www.regulations.gov in Docket No.
FAA20210449.
Issued on May 27, 2021.
Lance T. Gant, Director, Compliance & Airworthiness Division, Aircraft Certification Service.
FR Doc. 202111615 Filed 6221; 8:45 am
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration 14 CFR Part 39

h Parts Installation Limitation
BILLING CODE 491013P

29707

Docket No. FAA20210447; Project Identifier AD202100131E
RIN 2120AA64

Airworthiness Directives; Pratt &
Whitney Turbofan Engines Federal Aviation Administration FAA, DOT.
ACTION: Notice of proposed rulemaking NPRM.
AGENCY:

The FAA proposes to adopt a new airworthiness directive AD for all Pratt & Whitney PW PW1500G and PW1900G series turbofan engines. This proposed AD was prompted by reports of cracks in the high-pressure compressor HPC rotor shaft that resulted in in-flight shutdowns IFSDs and unscheduled engine removals UERs. This proposed AD would require removal and replacement of the HPC front hub and HPC rotor shaft. The FAA is proposing this AD to address the unsafe condition on these products.
DATES: The FAA must receive comments on this proposed AD by July 19, 2021.
ADDRESSES: You may send comments, using the procedures found in 14 CFR
11.43 and 11.45, by any of the following methods:
Federal eRulemaking Portal: Go to https www.regulations.gov. Follow the instructions for submitting comments.
Fax: 202 4932251.
Mail: U.S. Department of Transportation, Docket Operations, M30, West Building Ground Floor, Room W12140, 1200 New Jersey Avenue SE, Washington, DC 20590.
Hand Delivery: Deliver to Mail address above between 9 a.m. and 5
p.m., Monday through Friday, except Federal holidays.
For service information identified in this NPRM, contact Pratt & Whitney, 400 Main Street, East Hartford, CT
06118; phone: 800 5650140; fax: 860
5655442; email: help24@pw.utc.com;
website: https fleetcare.pw.utc.com.
You may view this service information at the FAA, Airworthiness Products Section, Operational Safety Branch, 1200 District Avenue, Burlington, MA
01803. For information on the availability of this material at the FAA, call 781 2387759.
SUMMARY:

Examining the AD Docket You may examine the AD docket at https www.regulations.gov by searching for and locating Docket No.

E:FRFM03JNP1.SGM

03JNP1