AD 75-21-01
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Aermacchi S.p.A. | F.260 | Airworthiness Directives; Siai-Marchetti Models F.260 and 260B Airplanes |
| aircraft | Aermacchi S.p.A. | F.260B | Airworthiness Directives; Siai-Marchetti Models F.260 and 260B Airplanes |
Unsafe Condition
Failure of the landing gear actuator relay and subsequent inability to extend the landing gear by normal electrical means.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Replace the landing gear actuator relay P/N 3311-2(10A) with new relay P/N MS 24166-D1(50A) and add a circuit breaker P/N MS 3320-10 in accordance with SIAI-Marchetti Service Bulletin No. 260B5B or FAA-approved equivalent.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
within the next 10 hours' time in service after the effective date of this AD
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Siai-Marchetti Models F.260 and 260B airplanes, Serial Numbers 101 thru 125, 2-26 thru 2-56, 3-76, 3-77, 3-80, and 502, except Serial Numbers 112, 2-33, 2-37, 2-43, 2-47, 2-53, and 2-54, certificated in all categories.
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
This site is not affiliated with or endorsed by the FAA. Always verify with official sources.