Kelowna Flightcraft (General Dynamics/Co
Kelowna Flightcraft (General Dynamics/Convair) Series Aeroplanes
Kelowna Flightcraft (General Dynamics/Convair) Series Aeroplanes
| AD/CONVAIR/20 | MLG Torque Arm Apex Bolt | 5/2006 |
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| Applicability: | Model 340 and 440 aircraft, and all such model aircraft converted to turbopropeller power; incorporating a Menasco main landing gear (MLG) torque arm apex bolt (Menasco part number 528076) that has a 0.67-inch fillet relief diameter. |
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| Requirement: | Inspect the MLG torque arm apex bolt for cracks by using a dye penetrant method.If cracking is detected during any inspection, replace with a serviceable original bolt or a redesigned bolt.The repetitive inspections required by this Directive may be terminated when a redesigned bolt is installed (Menasco part number 528076) that has a 0.79-inch fillet relief diameter, and a letter “R” stamped on one end.Note: FAA AD 63-11-02 Amdt 567 Part 507 refers. |
| Compliance: | Unless the initial inspection is already accomplished; within 250 hours time in service after 11 May 2006, unless accomplished within the last 300 hours time in service. Inspect thereafter at intervals not to exceed 550 hours time in service, until a redesigned bolt is installed. |
| This Airworthiness Directive becomes effective on 11 May 2006. | |
| Background: | Reports were received of MLG torque arm apex bolts cracking in the fillet relief diameter. |
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David Villiers
Delegate of the Civil Aviation Safety Authority
31 March 2006