AD 76-08-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | DeHavilland Support Limited | Beagle B.121 Series 1 | Airworthiness Directives; Scottish Aviation Ltd. (Beagle Aircraft Ltd.) Model B-121 "PUP," Series 1, 2, and 3 Airplanes |
| aircraft | DeHavilland Support Limited | Beagle B.121 Series 2 | Airworthiness Directives; Scottish Aviation Ltd. (Beagle Aircraft Ltd.) Model B-121 "PUP," Series 1, 2, and 3 Airplanes |
| aircraft | DeHavilland Support Limited | Beagle B.121 Series 3 | Airworthiness Directives; Scottish Aviation Ltd. (Beagle Aircraft Ltd.) Model B-121 "PUP," Series 1, 2, and 3 Airplanes |
Unsafe Condition
Failure of the flap actuating lever and consequent loss of airplane control.
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Required Actions
Inspect flap actuating lever assemblies using dye-penetrant method or FAA-approved equivalent. Remove and replace cracked parts with new parts of same part number or FAA-approved equivalent. Re-attach flap actuating rods with new split pins, re-rig flaps, re-install wing root fillets, and perform functional check of flap operation. Repeat inspections at intervals not exceeding 100 hours time in service from last inspection.
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Compliance Time
Within the next 25 hours time in service after the effective date (April 29, 1976) or before accumulation of 400 hours total time in service, whichever occurs later (for airplanes with <400 hours). For airplanes with 400-799 hours, within next 25 hours time in service after effective date. For airplanes with ≥800 hours, within next 25 hours time in service after effective date unless already accomplished within previous 75 hours. Repeat inspections before accumulation of specified hours as per paragraphs (a), (b), or (c).
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Affected Aircraft
Scottish Aviation Ltd. (Beagle Aircraft Ltd.) Model B-121 'PUP,' Series 1, 2, and 3 airplanes, certificated in all categories.
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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