AD 96-03-08
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Saab AB, Saab Aerosystems | SAAB 340B | Airworthiness Directives; Saab Model SAAB SF340A and SAAB 340B Series Airplanes |
| aircraft | Saab AB, Saab Aerosystems | 340A (SAAB SF340A) | Airworthiness Directives; Saab Model SAAB SF340A and SAAB 340B Series Airplanes |
Unsafe Condition
A valve limit switch may fail to send input to the 'PROP BRAKE' warning system, resulting in the crew being unaware that the propeller brake is not properly engaged and the propeller may turn without warning.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Perform an operational test of the valve limit switch within 100 flight hours after the effective date, repeating every 100 flight hours. Replace propeller brake control units with part numbers HP1410100-3, -5, or -7 with new units (P/N HP1410100-10) and perform the test per specified service bulletins. Prohibit installation of non-compliant units unless modified per the service bulletin.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 100 flight hours after the effective date of this AD, and repeat thereafter at intervals not to exceed 100 flight hours.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Saab Model SAAB SF340A series (serial numbers 004 through 159) and SAAB 340B series (serial numbers 160 through 369) with propeller brake system connected.
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.