Airworthiness Directive 2002-02-09
one-timeAirworthiness Directives; General Electric Company (GE) CF6-45 and CF6-50 Series Turbofan Engines
What this AD requires
This amendment adopts a new airworthiness directive (AD), that is applicable to GE CF6-45 and CF6-50 series turbofan engines. This AD requires a reduction of the cyclic life limit for certain low pressure turbine rotor (LPTR) stage 2 disks, and requires removing certain LPTR stage 2 disks from service before exceeding the new, lower cyclic life limit. In addition, this amendment requires removing from service certain LPTR stage 2 disks that currently exceed, or will exceed, the new, lower cyclic life limit according to the compliance schedule described in this action. This amendment is prompted by a report of a cracked LPTR stage 2 disk found initially by flourescent penetrant inspection and later confirmed by a visual inspection. The actions specified by this AD are intended to prevent an uncontained engine failure and damage to the airplane, resulting from cracks in the LPTR stage 2 disk.
Which aircraft AD 2002-02-09 applies to
Applies to CF6-45 and CF6-50 engines with low-pressure-turbine-rotor (LPTR) stage 2 disk P/N 9061M22P08 or 9061M22P10 installed; establishes a new cyclic life limit of 10,400 cycles-since-new (per Ch. 05-10-00 of the CF6-45/CF6-50 Engine Shop Manual GEK 50481) with a tiered removal schedule based on cycles accumulated as of the effective date, and prohibits installing a disk with 10,400+ CSN.
Whether AD 2002-02-09 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:
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.