AD 2006-16-06
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | General | Electric Company (GE) CF6-80 Series Turbofan | Airworthiness Directives; General Electric Company (GE) CF6-80 Series Turbofan Engines |
Unsafe Condition
Cracks in the bottoms of the dovetail slots of certain stage 1 high-pressure turbine (HPT) rotor disks, which could propagate to failure of the disk and cause an uncontained engine failure.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect stage 1 HPT rotor disks to qualify for rework procedures. Rework the dovetail slot bottom of certain disks. Remove from service certain disks for which rework was not previously required. Tighten the compliance schedule for disks not previously inspected under AD 2004-04-07.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Varies based on cycles-since-new (CSN) on the effective date of this AD: within 250 cycles-in-service (CIS) or by March 31, 2007 for disks with 9,000 or more CSN; within 500 CIS or before accumulating 9,250 CSN or by December 31, 2007 for disks with 6,900 or more but fewer than 9,000 CSN; before accumulating 7,400 CSN or by December 31, 2008 for disks with fewer than 6,900 CSN.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
General Electric Company (GE) CF6-80 series turbofan engines, specifically stage 1 HPT rotor disks, as listed in Table 1 of the AD.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
This site is not affiliated with or endorsed by the FAA. Always verify with official sources.