AD 2021-20-22
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Fokker | Services B | Airworthiness Directives; Fokker Services B.V. Airplanes |
| aircraft | Aviat | Various | Airworthiness Directives; Fokker Services B.V. Airplanes |
Unsafe Condition
exfoliation corrosion found during an inspection of the wing front spar lower boom, which may also exist at other spanwise positions on the wing front spar lower boom
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
inspect for corrosion of the wing front spar lower boom between WSTA 1825 and WSTA 10110, and applicable corrective actions, as specified in EASA AD 2021-0059
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Before further flight
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Fokker Services B.V. Model F28 Mark 0070 and Mark 0100 airplanes
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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