AD/B737/262 Wing Outboard Flap Inboard Flap Track (Cth)
AIRWORTHINESS DIRECTIVE
For the reasons set out in the background section, the CASA delegate whose signature appears below issues the following Airworthiness Directive (AD) under subregulation 39.001(1) of CASR 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.
Boeing 737 Series Aeroplanes
| AD/B737/262 | Wing Outboard Flap Inboard Flap Track | 13/2005 |
Applicability: | Model 737-100, -200, and -200C series aircraft on which the left or right hand inboard flap tracks of the wing outboard flap have a part number listed in Table 1 of FAA AD 2000-25-07. |
Requirement: | Action in accordance with the technical requirements of FAA AD 2000-25-07 Note: Boeing All Operator Message M-7200-00-01854, dated 27 July 2000, refers. |
Compliance: | As specified in the Requirement document. |
| This Airworthiness Directive becomes effective on 22 December 2005. | |
Background: | The FAA received a report indicating that cracking of the aft end of an inboard flap track of the wing outboard flap was found on a Model 737-200 series aircraft with improved flap tracks installed. Further investigation revealed that the cracks were caused by corrosion at the fasteners that attach the fail-safe bar to the inner and outer webs. Such cracking, unless detected and corrected, could result in loss of the outboard trailing edge flap and consequent loss of controllability of the aircraft. |
David Villiers
Delegate of the Civil Aviation Safety Authority
10 November 2005
0
0
0