AD 81-14-08
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Fokker Services | F27 Mark 050 | Airworthiness Directives; FOKKER B.V. Model F27 Airplanes |
| aircraft | Fokker Services | F27 Mark 100 | Airworthiness Directives; FOKKER B.V. Model F27 Airplanes |
| aircraft | Fokker Services | F27 Mark 200 | Airworthiness Directives; FOKKER B.V. Model F27 Airplanes |
| aircraft | Fokker Services | F27 Mark 300 | Airworthiness Directives; FOKKER B.V. Model F27 Airplanes |
| aircraft | Fokker Services | F27 Mark 400 | Airworthiness Directives; FOKKER B.V. Model F27 Airplanes |
| aircraft | Fokker Services | F27 Mark 500 | Airworthiness Directives; FOKKER B.V. Model F27 Airplanes |
| aircraft | Fokker Services | F27 Mark 600 | Airworthiness Directives; FOKKER B.V. Model F27 Airplanes |
| aircraft | Fokker Services | F27 Mark 700 | Airworthiness Directives; FOKKER B.V. Model F27 Airplanes |
Unsafe Condition
Inadvertent unlocking of Ipeco seats, failure of the right elevator center hinge fitting, structural integrity issues with cargo door latch mechanisms, improper operation of main passenger door emergency release mechanisms, main landing gear system operational issues, pitot static system malfunction, cable loom damage, and inadequate battery power to the main DC tie bus.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect and modify bolt and tracklock stop block per Fokker Service Bulletin 25-47 within 100 hours time in service and every 50 hours thereafter until modified within 500 hours. Inspect and rework cargo door latch mechanism per SB 52-60 within 100 hours. Inspect for cracks and replace hinge fittings per SB 55-52 within 500 hours. Modify main passenger door emergency release per SB 52-61 within 100 hours. Replace main gear actuating ram retaining ring before 7,500 landings or within 500 landings after AD effective date. Modify pitot static system per SB 34-41 within 100 hours. Inspect and modify cable loom per SB 30-34 within 200 hours. Inspect and modify battery wiring per Special Instructions 76 within 100 hours.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within the next 100 hours time in service and every 50 hours thereafter until modified within 500 hours time in service (for seats). Within 100 hours time in service for cargo door, hinge fitting inspection, main passenger door, pitot static, and battery wiring. Within 200 hours for cable loom. Before 7,500 landings or within 500 landings after AD effective date for landing gear.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Fokker B.V. Model F27 airplanes, all series, with specific serial numbers as listed in each paragraph (A to H) of the AD.
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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