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Airworthiness Directive 2001-26-06

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Official AD 2001-26-06 · FR doc 01-31326 · 2001-12-21 · turbine engine

Airworthiness Directives; CFE Company Model CFE738-1-1B Turbofan Engines

What this AD requires

This amendment adopts a new airworthiness directive (AD) that is applicable to CFE Company model CFE738-1-1B turbofan engines. This action requires the removal of certain fan rotor disks from service. This amendment is prompted by a report from a forging manufacturer, of a metallurgical inclusion (contaminant) found in a forging made from a certain ingot of titanium. Fan rotor disks for model CFE738-1-1B engines have been manufactured from this same ingot and are suspect for metallurgical inclusions. The actions specified in this AD are intended to remove from service affected fan rotor disks, which if not removed, could result in uncontained engine failure and damage to the airplane.

Which aircraft AD 2001-26-06 applies to

MakesCfe Company
ModelsCFE738
Serial-conditional — narrows to serials 000322903511–000322903541.

Requires removal of specific fan rotor disk serial numbers (discrete SNs within the 000322903511-000322903541 range per AD Table 1, not every SN in that span is affected) from CFE738 engines regardless of which engine the disk is currently installed in; Table 2 of the AD lists known affected engine SNs (105430-105475+) for informational purposes only, see CFE SB CFE738-A72-8053.

Whether AD 2001-26-06 actually applies to your aircraft (by serial and installed parts) and whether it’s already complied with comes from that aircraft’s records.

How AD compliance is recorded

A valid compliance record (14 CFR 43.9) states:

Method of compliance — The specific action taken (inspected, replaced, modified) and to what revision.
Date — When the work was done.
Aircraft time — Total time in service / tach at compliance — how recurring next-due is computed.
Signature & certificate — The A&P/IA who returned it to service, with certificate number.
Is AD 2001-26-06 complied with on your aircraft?

Tailplate reads a tail number’s logbooks and matches every applicable AD — including this one — to its compliance evidence, with recurring next-due dates computed.

Look up a tail number →Read the full directive (Federal Register)

Applicability is derived from the FAA directive corpus and is advisory, not a legal airworthiness determination. Compliance is established only from an aircraft’s actual records.