Airworthiness Directives; Sikorsky Aircraft Corporation (Sikorsky) Model S-92A Helicopters

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This document proposes adopting a new airworthiness directive (AD) for the Sikorsky Model S-92A helicopters. The AD would require revising the Rotorcraft Flight Manual (RFM), Operating Limitations section, to make it clear to operators that this model helicopter was not certificated to the standards that allow for the carriage of human external cargo. This proposal is prompted by a mistake in the RFM, which allows "Class D" rotorcraft load combinations for human external cargo load (HEC) operations for this model. The Model S-92A RFM does not include the required one-engine inoperative (OEI) hover performance and procedures. The actions specified by the proposed AD are intended to correct the Limitations section of the RFM to prevent HEC operations, which could result in injury or loss of life.