Airworthiness Directive · Amendment 39-10025 · Fairchild Aircraft, Inc. SA226 and SA227 Series Airplanes
Fairchild Aircraft, Inc. SA226 and SA227 Series Airplanes
The following airplane models and serial numbers, certificated in any category, that do not incorporate an elevator torque tube with either part number (P/N) 27-44026-005, P/N 27- 44026-007, or P/N 27-44026-SEO-1-03: Model Serial Nos. SA226-T............................. T201 through T275 and T277 through T291. SA226-T(B).......................... T(B)276 and T(B)292 through T(B)417. SA226-AT............................ AT001 through AT074. SA226-TC............................ TC201 through TC419. SA227-TT............................ TT421 through TT541. SA227-AT............................ AT423 through AT695. SA227-AC............................ AC406, AC415, AC416, and AC420 through AC772. SA227-BC............................ BC762, BC764, BC766, BC770, BC771, and BC772.
This amendment supersedes Airworthiness Directive (AD) 96-21- 05, which currently requires the following on certain Fairchild Aircraft, Inc. (Fairchild) SA226 and SA227 series airplanes that do not have a certain elevator torque tube installed: drilling inspection access holes in the elevator torque tube arm, inspecting the elevator torque tube for corrosion, replacing any corroded elevator torque tube, and applying a corrosion preventive compound. AD 96-21-05 resulted from several reports of corrosion found in the elevator torque tube area on the affected airplanes. This AD retains the actions required by AD 96- 21-05, and adds certain Fairchild Model SA227-BC airplanes to the Applicability section of that AD. The actions specified by this AD are intended to prevent failure of the flight control system caused by a corroded elevator torque tube, which could result in loss of control of the airplane.
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.
