Airworthiness Directive · Amendment 39-11066 · Fairchild Aircraft, Inc. SA226 and SA227 Series Airplanes
Fairchild Aircraft, Inc. SA226 and SA227 Series Airplanes
Superseded. A later AD replaced this one: AD 2005-06-13. Comply with the one in force.
The following model airplanes and serial numbers, certificated in any category: Model Serial No. SA226-AT..................... AT001 through AT074. SA226-TC..................... TC201 through TC419. SA226-T...................... T201 through T291. SA226-T(B)................... T(B)276 and T(B)292 through T(B)417. SA227-TT..................... TT421 through TT541. SA227-TT(300)................ TT(300)447, TT(300)465, TT(300)471, TT(300)483, TT(300)512, TT(300)518, TT(300)521, TT(300)527, TT(300)529, and TT(300)536. SA227-AC..................... AC406, AC415, AC416, and AC420 through AC785. SA227-AT..................... AT423 through AT631 and AT695. SA227-BC..................... BC762, BC764, BC766, and BC770 through BC789. SA227-CC/DC.................. CC/DC784 and CC/DC790 through CC/DC878.
This amendment adopts a new airworthiness directive (AD) that applies to certain Fairchild Aircraft, Inc. (Fairchild) SA226 and SA227 series airplanes. This AD requires repetitively inspecting the wing spar center web cutout on both wings for cracks between Wing Station (WS) 8 and WS 17.5, and immediately repairing any area found cracked. This repair will eliminate the need for the repetitive inspections on that particular wing spar. This AD is the result of reports of cracks in the wing spar center web cutout caused by fatigue due to airplane maneuvering and wind gusts. The actions specified by this AD are intended to detect and correct fatigue cracking of the wing spar center web cutout area, which could result in structural failure of the wing spar to the point of failure with consequent 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.
