Commonwealth legislation

AD/CT58/18 - Fuel Flow Divider Assemblies

In ForceCTH

Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

3/10 complexity

This Airworthiness Directive requires operators of GE CT58-series turboshaft engines fitted with specified fuel flow divider assemblies to read the temperature‑control assembly serial number and to remove from service any divider whose serial number appears on GE’s alert service bulletin list or whose serial number cannot be determined. It also prohibits installing those affected assemblies. Operators and maintenance providers bear inspection, removal and replacement costs and may incur aircraft downtime; compliance must occur within 120 flight hours.

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/CT58/18 - Fuel Flow Divider Assemblies.

AIRWORTHINESS DIRECTIVE

View image in the official source

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 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.

View image in the official source

General Electric Turbine Engines - CT58 Series

AD/CT58/18 Fuel Flow Divider Assemblies

AD/CT58/18 Fuel Flow Divider Assemblies 7/2004

Applicability: General Electric Company (GE) CT58-100-2, CT58-140-1, -140-2, and T58-GE-1,

-3, -5, -8E, -8F, -10, -100, and -402 turboshaft engines, with fuel flow divider assemblies part number (P/N) 4050T82G02 or 4067T04G02, having temperature control assemblies, P/N 5040T77G02 or 5040T87G02, with serial numbers (SNs) listed in 1.A.(3) of GE Alert Service Bulletin (ASB) No. CT58 S/B 73-A0081, Revision 2, dated August 7, 2003, installed.

Requirement: 1. Locate the temperature control assembly, which is mounted on the fuel flow divider assembly and do the following:

Read the SN of the temperature control assembly. The SN is located on the end cap of the temperature control assembly. The end cap has a one-inch hex flange and is threaded into the fuel flow divider body.

b. If the SN is listed in 1.A.(3) of GE ASB No. CT58 S/B 73- A0081, or if the SN cannot be determined, remove the fuel flow divider assembly from service.

2. Do not install any fuel flow divider assembly P/N 4050T82G02 or 4067T04G02, that has a temperature control assembly with a SN listed in 1.A.(3) of GE ASB No. CT58 S/B 73-A0081.

Note: FAA AD 2004-04-06 Amdt 39-13487 refers.

Compliance: For Requirement 1: Within 120 flight hours after the effective date of this Directive.

For Requirement 2: From the effective date of this Directive. This Airworthiness Directive becomes effective on 8 July 2004.

Source text

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

AIRWORTHINESS DIRECTIVE AIRWORTHINESS DIRECTIVE

AIRWORTHINESS DIRECTIVE

General Electric Turbine Engines - CT58 Series

AD/CT58/18 Fuel Flow Divider Assemblies AD/CT58/18 Fuel Flow Divider Assemblies 7/2004

AD/CT58/18 Fuel Flow Divider Assemblies 7/2004

Applicability: General Electric Company (GE) CT58-100-2, CT58-140-1, -140-2, and T58-GE-1,

Requirement: 1. Locate the temperature control assembly, which is mounted on the fuel flow divider assembly and do the following:

Read the SN of the temperature control assembly. The SN is located on the end cap of the temperature control assembly. The end cap has a one-inch hex flange and is threaded into the fuel flow divider body.

b. If the SN is listed in 1.A.(3) of GE ASB No. CT58 S/B 73- A0081, or if the SN cannot be determined, remove the fuel flow divider assembly from service.

2. Do not install any fuel flow divider assembly P/N 4050T82G02 or 4067T04G02, that has a temperature control assembly with a SN listed in 1.A.(3) of GE ASB No. CT58 S/B 73-A0081.

Note: FAA AD 2004-04-06 Amdt 39-13487 refers.

Compliance: For Requirement 1: Within 120 flight hours after the effective date of this Directive.

For Requirement 2: From the effective date of this Directive. This Airworthiness Directive becomes effective on 8 July 2004.