AD 2000-12-09

final rule
Data completeness: 70%

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

AD Number
2000-12-09
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Docket No. 99-SW-37-AD
FR Citation
65 FR 39074

Applicability

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

Unsafe Condition

Overheating of the air conditioning soft-start assembly, which could lead to damage in the lower tailcone, an electrical fire, 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

Inspect the soft-start control assembly within 25 hours time-in-service (TIS) and thereafter at intervals not exceeding 25 hours TIS. Install a soft-start assembly retrofit kit within 120 calendar days.

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

Compliance Time

Within 25 hours TIS for inspections and within 120 calendar days for retrofit kit installation.

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

Affected Aircraft

Sikorsky Model S-76A helicopters with Aero Aire Air Conditioning System, part number S-76A-1-2, modified in accordance with Supplemental Type Certificate SH4680SW, certificated in any category.

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

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