AD 65-04-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Bombardier Inc. | CL-44D4 | Airworthiness Directives; CANADAIR Model CL-44D4 Aircraft |
Unsafe Condition
Failure of the elevator antiflutter gear box strut could result in punctured elevator ribs or limited elevator travel.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect the shafts P/N 44A167729-4 and 44A167729-6 for cracks using dye penetrant and at least a 10-power glass or FAA-approved equivalent. Replace cracked parts with new parts or FAA-approved equivalents before further flight, except under FAR 21.197.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Compliance required as indicated in (a) or (b): For aircraft with less than 5,400 hours' time in service on effective date, comply prior to 5,450 hours' time in service (or within last 250 hours) and at intervals not exceeding 300 hours. For those with 5,400+ hours, comply within next 50 hours' time in service after effective date (or within last 250 hours) and at intervals not exceeding 300 hours.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Bombardier Inc. Model CL-44D4 aircraft with elevator antiflutter gear box strut assemblies having shafts P/N 44A167729-4 or 44A167729-6.
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.