AD Amdt-39-11083

final rule
Data completeness: 70%

Airworthiness Directives; Sikorsky Aircraft Corporation (Sikorsky) Model S-76C Helicopters

AD Number
Amdt-39-11083
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Docket No. 99-SW-22-AD
FR Citation
64 FR 13889

Applicability

TypeManufacturerModelDetails
aircraft Sikorsky S-76C Airworthiness Directives; Sikorsky Aircraft Corporation (Sikorsky) Model S-76C Helicopters

Unsafe Condition

The referenced Rotorcraft Flight Manual (RFM) has been revised, potentially leading to an inability to achieve the published One-Engine-Inoperative (OEI) performance and subsequent loss of control of the helicopter.

AI-generated summary from the source AD text. Verify against the official source before acting.

Required Actions

Insert new operating limitations and performance data into the updated Rotorcraft Flight Manual (RFM) to reflect lower allowable gross weights for certain operational conditions.

AI-generated summary from the source AD text. Verify against the official source before acting.

Compliance Time

Before further flight

AI-generated summary from the source AD text. Verify against the official source before acting.

Affected Aircraft

Sikorsky Aircraft Corporation Model S-76C helicopters

AI-generated summary from the source AD text. Verify against the official source before acting.

Source: Official FAA Source ↗

Retrieved: Apr 6, 2026

Rights: U.S. Government Public Domain

This site is not affiliated with or endorsed by the FAA. Always verify with official sources.