Airworthiness Directive · Amendment 39-18054 · Flight controls
Saab AB, Saab Aerosystems Airplanes
This AD applies to Saab AB, Saab Aerosystems Model 340B airplanes, certificated in any category, all serial numbers.
We are adopting a new airworthiness directive (AD) for all Saab AB, Saab Aerosystems Model 340B airplanes. This AD was prompted by a report that the elevator position quoted in an aircraft maintenance manual is incorrect and a report that the trunnion at the lower part of the control column was installed incorrectly. This AD requires an inspection of the stick pusher rigging and an inspection of the installation of the trunnion and the stick pusher rigging, and corrective actions if necessary. We are issuing this AD to correct the rigging of the elevator position of the stick pusher to reduce the probability of a negative effect on the handling quality during stall, which could result in reduced controllability of the airplane.
Within 24 months after the effective date of this AD, do a detailed inspection of the installation of the trunnion at the lower part of the control column and the stick pusher rigging, in accordance with the Accomplishment Instructions of Saab Service Bulletin 340-27-115, dated July 19, 2013.
If, during the inspection required by paragraph (g) of this AD, an incorrect setting of the stick pusher maximum elevator position is found, or if the trunnion at the lower part of the control column is installed incorrectly, before further flight, accomplish all applicable corrective actions, in accordance with the Accomplishment Instructions of Saab Service Bulletin 340-27-115, dated July 19, 2013; except where Saab Service Bulletin 340-27-115, dated July 19, 2013, specifies to contact SAAB for corrective action, repair before further flight, using a method approved by the Manager, International Branch, ANM-116, Transport Airplane Directorate, FAA; or the European Aviation Safety Agency (EASA); or Saab AB, Saab Aerosystems' EASA Design Organization Approval (DOA). If approved by the DOA, the approval must include the DOA-authorized signature.
After accomplishing corrective actions as required by paragraph (h) of this AD, record any incorrect rigging value that was detected and send a report to: Saab AB, Business Area Support and Services, Air Division, Technical Support, email: Saab340.techsupport@saabgroup.com; fax: +46 (0) 13 18 48 74; at the applicable time specified in paragraph (i)(1) or (i)(2) of this AD.
(1) If the corrective action was done on or after the effective date of this AD: Submit the report within 30 days after accomplishing the corrective action.
(2) If the corrective action was done before the effective date of this AD: Submit the report within 30 days after the effective date of this AD.
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
