Commonwealth legislation

AD/B737/144 - Taxi Light Assembly

In ForceCTH

Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

3/10 complexity

This Airworthiness Directive requires operators of 737-100/200/300/400/500 aeroplanes (unless already fitted with certain Grimes taxi‑light part numbers) to perform a detailed visual inspection of the nose‑gear taxi‑light assembly for cracking, corrosion, deformation or impact (Requirement 1). Any damaged assembly must be replaced (Requirement 2), and fitting one of the listed Grimes parts terminates the need for further repetitive inspections (Requirement 3). Operators must follow the applicable maintenance manual and bear the inspection and replacement costs.

JSON API

Deep dive

Want the full deep dive?

Zoe can write the in-depth analysis on top of the summary above: how it works, who it affects and what each part actually does.

Current sections

Direct links to the current provisions in AD/B737/144 - Taxi Light Assembly.

AIRWORTHINESS DIRECTIVE

View image in the official source

View image in the official source
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 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.

AD/B737/144 Taxi Light Assembly 7/2000 D

AD/B737/144 Taxi Light Assembly 7/2000 DM

Applicability: Model 737-100, -200, -300, -400 and -500 series aeroplanes that are not equipped with a Grimes Aerospace taxi light assembly having Part Number (P/N) 50-0199-9, 50-0199-11, 50-0128-1A, 50-0128-1MA, 50-0128-3A or 50-0128-3MA.

Requirement: 1. Perform a detailed visual inspection to detect damage (including cracking, corrosion, deformation, or evidence of impact) of the taxi light assembly mounted on the nose landing gear of the aeroplane.

Note 1: For the purposes of this Directive, a detailed visual inspection is defined as an intensive visual inspection of a specific structural area, system, installation or assembly to detect damage, failure or irregularity. Available lighting is normally supplemented with a direct source of lighting at an intensity deemed appropriate by the inspector (i.e., the person performing the inspection).

Inspection aids such as mirrors, magnifying glasses, etc., may be used. Surface cleaning and elaborate access procedures may be necessary.

2. If any damage of the taxi light assembly is detected during the inspection performed in accordance with Requirement 1 of this Directive, replace the existing taxi light assembly with a new or serviceable taxi light assembly in accordance with the applicable maintenance manual. If the existing taxi light assembly is replaced with a Grimes Aerospace taxi light assembly having P/N 50-0199-9, 50- 0199-11, 50-0128-1A, 50-0128-1MA, 50-0128-3A or 50-0128-3MA; no further action is required by this Directive.

3. Replace the existing taxi light assembly with a Grimes Aerospace taxi light assembly having P/N 50-0199-9, 50-0199-11, 50-0128-1A, 50-0128-1MA, 50- 0128-3A or 50-0128-3MA; in accordance with the applicable maintenance manual. Such replacement constitutes terminating action for the Requirement 1 repetitive inspections.

Note 2: FAA AD 2000-08-17 Amdt 39-11703 refers.

Source text

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

AIRWORTHINESS DIRECTIVE AIRWORTHINESS DIRECTIVE

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 39.1 (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.

AD/B737/144 Taxi Light Assembly 7/2000 D AD/B737/144 Taxi Light Assembly 7/2000 DM

AD/B737/144 Taxi Light Assembly 7/2000 DM

Inspection aids such as mirrors, magnifying glasses, etc., may be used. Surface cleaning and elaborate access procedures may be necessary.

2. If any damage of the taxi light assembly is detected during the inspection performed in accordance with Requirement 1 of this Directive, replace the existing taxi light assembly with a new or serviceable taxi light assembly in accordance with the applicable maintenance manual. If the existing taxi light assembly is replaced with a Grimes Aerospace taxi light assembly having P/N 50-0199-9, 50- 0199-11, 50-0128-1A, 50-0128-1MA, 50-0128-3A or 50-0128-3MA; no further action is required by this Directive.

3. Replace the existing taxi light assembly with a Grimes Aerospace taxi light assembly having P/N 50-0199-9, 50-0199-11, 50-0128-1A, 50-0128-1MA, 50- 0128-3A or 50-0128-3MA; in accordance with the applicable maintenance manual. Such replacement constitutes terminating action for the Requirement 1 repetitive inspections.