AD/SWSA226/90 Amdt 3 - Auto Ignition Systems (Cth)

AIRWORTHINESS DIRECTIVE For the reasons set out in the background section, the CASA delegate whose signature appears below revokes Airworthiness Directive (AD) AD/SWSA226/90 Amdt 2 and issues the following AD under subregulation 39.1 (1) of CAR 1998. The AD requires that the action set out in the requirement section (being action that the delegate considers necessary to correct the unsafe condition) be taken in relation to the aircraft or aeronautical product mentioned in the applicability section: (a) in the circumstances mentioned in the requirement section; and (b) in accordance with the instructions set out in the requirement section; and (c) at the time mentioned in the compliance section.

Fairchild (Swearingen) SA226 and SA227 Series Aeroplanes

AD/SWSA226/90 Amdt 3

Auto Ignition Systems 4/2003 TX

Applicability: Model SA226 and SA227 series aeroplanes listed in the following table.

Model Serial Numbers

SA226-AT SA226-T SA226-T(B) SA226-TC SA227-AC

SA227-AT SA227-TT

AT001 through AT074 T201 through T275, and T277 through T291 T276 and T292 through T417 TC201 through TC419 AC406, AC415, AC416, AC420 through AC633, AC637, AC638, AC641 through AC644, AC647, AC648, AC651, AC652, AC656, and AC657 AT423 through AT631 TT421 through TT547

Requirement: 1. Unless already accomplished, amend the Aircraft Flight Manual (AFM) by incorporating into the Limitations Section of the AFM, the procedures included as Annex A or Annex B to this Directive.

This may be accomplished by inserting a copy of the applicable Annex to this Directive into the AFM.

2. Modify the torque sensing system to allow the igniters to automatically turn on when an engine senses low torque, by incorporating the kits specified in the following Fairchild Aircraft Service Bulletins, as applicable: