AD 93-21-11
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Fokker Services | F27 Mark 100 | Airworthiness Directives; FOKKER Model F27 Series Airplanes |
| aircraft | Fokker Services | F27 Mark 200 | Airworthiness Directives; FOKKER Model F27 Series Airplanes |
| aircraft | Fokker Services | F27 Mark 300 | Airworthiness Directives; FOKKER Model F27 Series Airplanes |
| aircraft | Fokker Services | F27 Mark 400 | Airworthiness Directives; FOKKER Model F27 Series Airplanes |
| aircraft | Fokker Services | F27 Mark 500 | Airworthiness Directives; FOKKER Model F27 Series Airplanes |
| aircraft | Fokker Services | F27 Mark 600 | Airworthiness Directives; FOKKER Model F27 Series Airplanes |
| aircraft | Fokker Services | F27 Mark 700 | Airworthiness Directives; FOKKER Model F27 Series Airplanes |
Unsafe Condition
Failure of the brake control valve actuating levers.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Replace the brake control valve actuating levers in accordance with Fokker Service Bulletin F27/32-161, Revision 1. Submit requests for alternative methods of compliance or adjustments to the FAA for approval.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 12 months after the effective date of this AD, or prior to the accumulation of 2,000 flight hours after the effective date of this AD, whichever occurs first.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Fokker Services Model F27 Mark 100, F27 Mark 200, F27 Mark 300, F27 Mark 400, F27 Mark 500, F27 Mark 600, F27 Mark 700 airplanes, excluding Model F27 Mark 050 series airplanes.
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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