AD 90-08-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Fokker Services | F27 Mark 050 | Airworthiness Directives; FOKKER Model F-27 Series Airplanes |
| aircraft | Fokker Services | F27 Mark 100 | Airworthiness Directives; FOKKER Model F-27 Series Airplanes |
| aircraft | Fokker Services | F27 Mark 200 | Airworthiness Directives; FOKKER Model F-27 Series Airplanes |
| aircraft | Fokker Services | F27 Mark 300 | Airworthiness Directives; FOKKER Model F-27 Series Airplanes |
| aircraft | Fokker Services | F27 Mark 400 | Airworthiness Directives; FOKKER Model F-27 Series Airplanes |
| aircraft | Fokker Services | F27 Mark 500 | Airworthiness Directives; FOKKER Model F-27 Series Airplanes |
| aircraft | Fokker Services | F27 Mark 600 | Airworthiness Directives; FOKKER Model F-27 Series Airplanes |
| aircraft | Fokker Services | F27 Mark 700 | Airworthiness Directives; FOKKER Model F-27 Series Airplanes |
Unsafe Condition
Fatigue cracks in the wing top skin Stringers 5 and 6 at specified wing stations could reduce structural capability of the wing.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Perform a one-time X-ray inspection of the top skin Stringers 5 and 6 at Wing Stations 11260, 11860, 12660, and 13460 per Fokker Service Bulletin F27/57-65 or Revision 1. If cracks are found, repair prior to further flight per Part 2 of the same service bulletin.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Inspect prior to the accumulation of 30,000 landings or within 180 days after the effective date (May 4, 1990), whichever occurs later; or within 90 days or 30 days after the effective date depending on accumulated landings as of May 4, 1990.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Fokker Model F-27 series airplanes with serial numbers 10102 through 10684, 10686, 10687, and 10689 through 10692.
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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