Airworthiness Directive · Amendment 39-9083 · Saab AB, Saab Aerosystems Airplanes
Saab AB, Saab Aerosystems Airplanes
This AD applies to Saab AB, Saab Aerosystems SAAB 340B, 340A (SAAB SF340A).
The models as the FAA's AD index lists them. The serial ranges, installed parts and exceptions are in the AD itself: read it at the FAA.
This amendment adopts a new airworthiness directive (AD), applicable to certain Saab Model SAAB SF340A and SAAB 340B airplanes, that requires repetitive inspections to detect cracking of the tray stop spindle and backrest spindle bosses on the inboard sections of certain seats; and replacement of the inboard sections, if necessary. This amendment also requires repair and identification of the modification plate, which would terminate the requirement to inspect repetitively. This amendment is prompted by reports of fatigue cracking in the vicinity of the tray stop spindle and backrest spindle bosses, which could lead to excessive movement and eventual failure of the backrest on these seats during aft loading. The actions specified by this AD are intended to prevent failure of the backrest on these seats, which could inhibit emergency egress.
The aircraft, engines and makers this AD names, by the model designations in its text. A model listed here may still be outside the AD's serial ranges.
Aircraft
