AD 99-22-17
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Saab AB, Saab Aerosystems | SAAB 340B | Airworthiness Directives; Saab Model SAAB SF340A and 340B Series Airplanes |
| aircraft | Saab AB, Saab Aerosystems | 340A (SAAB SF340A) | Airworthiness Directives; Saab Model SAAB SF340A and 340B Series Airplanes |
Unsafe Condition
Failure of the main landing gear (MLG) downlock or brake hydraulic swivels could cause loss of inboard or outboard brakes, hydraulic fluid in the main hydraulic system, nose wheel steering operation, extension and retraction capability of landing gear and flaps, and operation of the propeller brake (if installed).
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Remove the MLG downlock and brake hydraulic swivel brackets and replace with new, improved parts per Saab Service Bulletin 340-29-009, Revision 02. Compliance may be achieved using prior revisions of the service bulletin if completed before the AD's effective date.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 12 months after the effective date (December 7, 1999)
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Saab Model SAAB SF340A (serials SF340A-004 to -159) and 340B (serials SF340B-160 to -339) 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
This site is not affiliated with or endorsed by the FAA. Always verify with official sources.