Airworthiness Directive · Amendment 39-19081 · Autopilot system
Sikorsky Aircraft Corporation Helicopters
This AD applies to Model S-92A helicopters, certificated in any category, with a Search and Rescue (SAR) Automatic Flight Control System installed with a Flight Control Computer (FCC) part number 92900-01802-112.
We are adopting a new airworthiness directive (AD) for Sikorsky Aircraft Corporation (Sikorsky) Model S-92A helicopters. This AD requires adding operating limitations to a rotorcraft flight manual (RFM). This AD is prompted by test results showing decoupling of the flight director (FD) in certain flight conditions. The actions of this AD are intended to address an unsafe condition on these products.
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.
Within 10 hours time-in-service, revise the operating limitations section of the Rotorcraft Flight Manual by adding the information in Figure 1 to paragraph (e) of this AD as paragraph 4, System Limits, in Section 1 of Sikorsky SA S92A-RFM-003 Rotorcraft Flight Manual Supplement (RFMS) No. 4 for the SAR AFCS (Sikorsky SA S92A-RFM-003 RFMS No. 4). This action may be done by:
(1) Inserting a copy of this AD;
(2) Making pen-and-ink changes; or
(3) Inserting pages 1-2 and 1-3/1-4 of Sikorsky SA S92A-RFM-003 RFMS No. 4, Revision 1, approved October 6, 2017. Using a different Sikorsky SA S92A-RFM-003 RFMS No. 4 revision with information identical to that in paragraph 4, System Limits, from Section 1 of Sikorsky SA S92A-RFM-003 RFMS No. 4, Revision 1, approved October 6, 2017, is acceptable for compliance with the requirements of this AD.
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
