Airworthiness Directive · Amendment 39-17486 · Equipment/furnishings
Various Helicopter Models
This AD applies to helicopters, certificated in any category, with an externally-mounted hoist with a part number and serial number listed in Table 1 of Goodrich Alert Service Bulletin No. 44301-10-15, dated March 8, 2013 (ASB), installed, including but not limited to the following:
(1) AgustaWestland S.p.A Model A109, A109S, A109K2, A109A, A109A II, A109C, A109E, AW109SP, AB139, AW139, AB412, and AB412 EP;
(2) Bell Helicopter Textron, Inc., Model 212, 214B, 214B-1, 214ST, 412, 412CF, and 412EP;
(3) Bell Helicopter Textron Canada, Ltd., Model 429 and 430;
(4) Eurocopter France Model AS 365 N3, AS332L2, and EC225LP;
(5) Eurocopter Deutschland GmbH Model MBB-BK 117 C-2, EC135P1, EC135T1, EC135P2, EC135T2, EC135P2+, and EC135T2+;
(6) MD Helicopters, Inc., Model MD900; and
(7) Sikorsky Aircraft Corporation Model S-61L, S-61N, S-61R, S-61NM, S-70, S-70A, S-70C, S-70C(M), S-70C(M1), S-76A, S-76B, S-76C, S-76D, and S-92A helicopters.
We are publishing a new airworthiness directive (AD) for various model helicopters with certain part-numbered and serial- numbered Goodrich externally-mounted hoists installed. This AD requires performing a cable conditioning lift and a load inspection test, deactivating or replacing any hoist that fails the load inspection test, and recording the results of the load inspection test. This AD is prompted by a report of a failure of the overload clutch resulting in an in-flight failure of a hoist containing a dummy load during a maintenance flight. These actions are intended to detect conditions that may result in failure of the hoist and injury to persons being lifted.
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.
Before next flight involving a hoist operation, perform the following one-time actions:
(1) Perform a cable conditioning lift by following the Accomplishment Instructions, paragraphs 2.A. through 2.A.(2), of the ASB.
(2) Perform a load inspection test by following the Accomplishment Instructions, paragraphs 2.B. through 2.I., of the ASB. Refer to the aircraft weight and balance limitations prior to performing this test and use a balancing load if necessary to prevent helicopter rollover. Any alternate method of complying with the load inspection test must first be approved in accordance with paragraph (g) of this AD.
(3) If the hoist fails the load inspection test, deactivate or replace the hoist with an airworthy hoist.
(4) Record the result of the load inspection test on the hoist component history card or equivalent record.
The aircraft, engines and makers this AD names, by the model designations in its text. A model listed here may still be outside the AD's serial ranges.
Aircraft
Appliances and equipment
