Airworthiness Directive · Amendment 39-11500 · Saab Model SAAB 2000 Series Airplanes
Saab Model SAAB 2000 Series Airplanes
Model SAAB 2000 series airplanes, serial numbers 004 through 063 inclusive, certificated in any category.
This amendment adopts a new airworthiness directive (AD), applicable to certain Saab Model SAAB 2000 series airplanes, that requires a measurement of the extension of the piston in the retract actuator of the main landing gear (MLG); and corrective action, if necessary. This amendment also requires repetitive replacement of the retract actuator with a repaired retract actuator, or repetitive replacement of the piston in the retract actuator with a new piston. This amendment is prompted by issuance of mandatory continuing airworthiness information by a foreign civil airworthiness authority. The actions specified by this AD are intended to prevent fatigue failure of the piston in the retract actuator of the MLG, and reduced structural integrity of the MLG.
Required as indicated, unless accomplished previously.
To prevent fatigue failure of the piston in the retract actuator of the main landing gear (MLG) and reduced structural integrity of the MLG, accomplish the following:
Inspection
(a) Within 3 days after the effective date of this AD, perform a measurement of the extension of the piston (ramrod) in the retract actuator of the MLG in accordance with Saab Service Bulletin 2000-A32-052, Revision 01, dated March 16, 1999, including Attachment 1, dated March 16, 1999, and Attachment 2, dated March 1999. If the extension of the piston is less than 0.59 inches (15 millimeters), prior to further flight, perform the action required by either paragraph (b)(1) or (b)(2) of this AD.
Replacement
(b) Prior to the accumulation of 5,000 total flight cycles, or within 2 months after the effective date of this AD, whichever occurs later, accomplish the requirement specified in either paragraph (b)(1) or (b)(2) of this AD in accordance with Saab Service Bulletin 2000-A32-052, Revision 01, dated March 16, 1999, including Attachment 1, dated March 16, 1999, and Attachment 2, dated March 1999. Thereafter, repeat the action required by either paragraph (b)(1) or (b)(2) of this AD at intervals not to exceed 5,000 flight cycles.
(1) Replace the retract actuator with a repaired retract actuator.
(2) Replace the piston in the retract actuator with a new piston.
Spares
(c) As of the effective date of this AD, no person shall install on any airplane, a retract actuator, part number (P/N) AIR86482-1 through AIR86482-4 inclusive, unless it has been repaired in accordance with Saab Service Bulletin 2000-A32-052, Revision 01, dated March 16, 1999, including Attachment 1, dated March 16, 1999, and Attachment 2, dated March 1999.
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
