AD 76-02-07
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Prestolite Company | Alternators | Airworthiness Directives; PRESTOLITE: Applies to Prestolite ALV-9400 through ALV-9410 Series Gear Driven Alternators |
Unsafe Condition
Defective alternator slip ring end bearings and overheating or wear in the bearing inner and outer race may lead to in-service failures.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect the bearing and shaft end for discoloration, overheating, or wear; check bearing grease for contamination; replace components as specified if defects are found; and re-grease with Chevron BRB#2/SRI#2 or approved equivalent.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within the next 25 hours time in service after the effective date (February 2, 1976) unless already accomplished within the last 75 hours time in service, and thereafter at intervals not to exceed 100 hours time in service from the last check.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Prestolite ALV-9400 through ALV-9410 series gear driven alternators.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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