AD 92-07-06
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | DeHavilland Support Limited | Beagle B.121 Series 1 | Airworthiness Directives; BRITISH AEROSPACE, REGIONAL AIRCRAFT LIMITED Beagle B121 Pup series 1, 2, and 3 Airplanes |
| aircraft | DeHavilland Support Limited | Beagle B.121 Series 2 | Airworthiness Directives; BRITISH AEROSPACE, REGIONAL AIRCRAFT LIMITED Beagle B121 Pup series 1, 2, and 3 Airplanes |
| aircraft | DeHavilland Support Limited | Beagle B.121 Series 3 | Airworthiness Directives; BRITISH AEROSPACE, REGIONAL AIRCRAFT LIMITED Beagle B121 Pup series 1, 2, and 3 Airplanes |
Unsafe Condition
Failure of each wing spar in the area immediately outboard of the root rib due to cracks could result in loss of control of the airplane.
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Required Actions
Inspect each wing spar web in the area immediately outboard of the root rib per BAe Pup Mandatory SB B121/79, Revision 1. If cracks are found, obtain an FAA-approved repair scheme and incorporate it before further flight. If no cracks, modify the spar web with Repair Scheme BE.03.10169 and follow SB B121/79 steps 3.2.6 and 3.2.7 before further flight.
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Compliance Time
Within 1,300 hours time-in-service (TIS) or within the next 100 hours TIS after the effective date of this AD (April 30, 1992), whichever occurs later.
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Affected Aircraft
Beagle B121 Pup series 1, 2, and 3 (all serial numbers) airplanes without Modification No. BE.214 incorporated on both mainplanes.
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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