AD 2012-23-13

final rule
Data completeness: 70%

Airworthiness Directives; Sikorsky Aircraft Corporation (Sikorsky) Model Helicopters

AD Number
2012-23-13
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Docket No. FAA-2012-1206
FR Citation
78 FR 41836

Applicability

TypeManufacturerModelDetails
aircraft Sikorsky S-70 Airworthiness Directives; Sikorsky Aircraft Corporation (Sikorsky) Model Helicopters

Unsafe Condition

Failure of the No. 2 crossfeed breakaway valve could result in loss of engine power, which could lead to an in-flight shutdown and subsequent loss of control.

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

Required Actions

Inspect the No. 2 crossfeed breakaway valve, P/N 70307-03006-103, to ensure it has not exceeded 1,500 hours TIS. Establish a life limit of 1,500 hours TIS for the valve.

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 Model S-70, S-70A, and S-70C helicopters with No. 2 crossfeed breakaway valve, P/N 70307-03006-103.

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

Source: Official FAA Source ↗

Retrieved: Apr 4, 2026

Rights: U.S. Government Public Domain

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

View Official Source ↗ Find More ADs for Sikorsky S-70

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