Commonwealth legislation

AD/LJ45/7 - Main Landing Gear Trunnion Shear Pins

In ForceCTH

Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

3/10 complexity

This Airworthiness Directive orders operators of specified Learjet 45 serial numbers to (1) add mandated inspections for main landing gear trunnion shear pins into their Instructions for Continued Airworthiness, and (2) replace specified shear-pin part numbers with improved pins (including re-identifying trunnion assemblies) following Bombardier service instructions. It sets fixed compliance windows and bars alternative replacement intervals unless the FAA approves them. Owners, operators and maintenance organisations must schedule the inspections/replacements and pay for parts, labour and any downtime.

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Current sections

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AIRWORTHINESS DIRECTIVE

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For the reasons set out in the background section, the CASA delegate whose signature appears below issues the following Airworthiness Directive (AD) under subregulation 39.1 (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.

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Learjet 45 Series Aeroplanes

AD/LJ45/7 Main Landing Gear Trunnion She

AD/LJ45/7 Main Landing Gear Trunnion Shear Pins 11/2003

Applicability: Model 45 aircraft, serial numbers 45-005 through 45-208, 45-210 through 45-222, 45-

224, 45-225, 45-227, and 45-229 through 45-231.

Requirement: 1. Revise the airworthiness limitations (AWL) section of the Instructions for Continued Airworthiness by inserting the instructions for Inspection Reference Numbers (IRN) J3220041, J3220042, and J3220043 (shear pins); as specified on page 2 of Chapter 4-11-00, Revision 32, dated 13 June 2003, of the Learjet 45 Maintenance Manual; into the AWL section. Thereafter, unless FAA approved, no alternative replacement interval may be approved for the shear pins in the trunnion assemblies of the main landing gears.

Replace the shear pins, having part number 4532103015-001V1088, 4532103015-003, 4532103025-001V1088, or 4532103026-001V1088, located in the trunnion assemblies of the main landing gears with new, improved shear pins (including re-identifying the trunnion assemblies); in accordance with the Accomplishment Instructions of Bombardier Service Bulletin 45-57-6, dated 9 June 2003.

Note: FAA AD 2003-16-09 Amdt 39-13262 refers.

Compliance: 1. Within 14 days after 3 September 2003.

Before the accumulation of 1,800 total landings on the shear pins, or within 100 landings after 3 September 2003, whichever occurs later.

This Airworthiness Directive becomes effective on 3 September 2003.

Source text

Sourced from the Federal Register of Legislation (legislation.gov.au), CC BY 4.0.

AIRWORTHINESS DIRECTIVE AIRWORTHINESS DIRECTIVE