AD 90-15-04
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Airbus SAS | BAC 1-11 200 Series | Airworthiness Directives; British Aerospace Model BAC 1-11 200 and 400 Series Airplanes |
| aircraft | Airbus SAS | BAC 1-11 400 Series | Airworthiness Directives; British Aerospace Model BAC 1-11 200 and 400 Series Airplanes |
Unsafe Condition
Tailplane trim gearbox oil contamination with water.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Remove the tailplane trim gearbox, drain the oil, flush and refill with clean oil, replace the filler plug and wire lock, reinstall the gearbox, and test in accordance with specified documents. Alternate compliance may be approved by the FAA.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 2,400 hours time-in-service or two years after the effective date of this AD, whichever occurs first; thereafter at intervals not exceeding 4,800 hours time-in-service or four years, whichever occurs first.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
British Aerospace Model BAC 1-11 200 and 400 Series airplanes pre-modification PM5384.
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
This site is not affiliated with or endorsed by the FAA. Always verify with official sources.