AD 84-18-05
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Fokker Services | F27 Mark 050 | Airworthiness Directives; FOKKER VFW B.V. Model F27 Series Airplanes |
| aircraft | Fokker Services | F27 Mark 100 | Airworthiness Directives; FOKKER VFW B.V. Model F27 Series Airplanes |
| aircraft | Fokker Services | F27 Mark 200 | Airworthiness Directives; FOKKER VFW B.V. Model F27 Series Airplanes |
| aircraft | Fokker Services | F27 Mark 300 | Airworthiness Directives; FOKKER VFW B.V. Model F27 Series Airplanes |
| aircraft | Fokker Services | F27 Mark 400 | Airworthiness Directives; FOKKER VFW B.V. Model F27 Series Airplanes |
| aircraft | Fokker Services | F27 Mark 500 | Airworthiness Directives; FOKKER VFW B.V. Model F27 Series Airplanes |
| aircraft | Fokker Services | F27 Mark 600 | Airworthiness Directives; FOKKER VFW B.V. Model F27 Series Airplanes |
| aircraft | Fokker Services | F27 Mark 700 | Airworthiness Directives; FOKKER VFW B.V. Model F27 Series Airplanes |
Unsafe Condition
Wing structural failure due to exceeding maximum operating speed (VMO) when the maximum takeoff weight exceeds 41,000 pounds.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Remove existing airspeed limitation placards and install new placards per Fokker Service Bulletin No. 11/3; incorporate changes to the Airplane Flight Manual per the same service bulletin; modify airspeed indicators and overspeed aural warning system to allow selecting a VMO of 204 knots I.A.S. when takeoff weight exceeds 41,000 pounds. Alternatively, revise airspeed indicators' redline markings, post placards stating 'MAXIMUM AIRSPEED, 204 KIAS', adjust overspeed warning devices, or limit takeoff weight to 41,000 pounds via AFM supplement.
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 after the effective date of this airworthiness directive
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Affected Aircraft
FOKKER VFW B.V. Model F27 Series airplanes, serial numbers 10102 to 10611, equipped with pylon tanks and maximum certificated takeoff weight above 41,000 pounds.
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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