AD 2006-17-07

Recurring final rule
Data completeness: 70%

Airworthiness Directives; Pratt & Whitney JT8D-1, -1A, -1B, -7, -7A, -7B, -9, -9A, -11, -15, -15A, -17, -17A, -17R, -17AR, -209, -217, -217A, -217C, and -219 Turbofan Engines

AD Number
2006-17-07
Status
final_rule
Effective Date
Product Category
engine
Docket
Docket No. 2001-NE-30-AD
FR Citation
71 FR 51459

Applicability

TypeManufacturerModelDetails
engine Pratt & Whitney JT8D-1 Airworthiness Directives; Pratt & Whitney JT8D-1, -1A, -1B, -7, -7A, -7B, -9, -9A, -11, -15, -15A, -17, -17A, -17R, -17AR, -209, -217, -217A, -217C, and -219 Turbofan Engines

Unsafe Condition

Cracking in HPC front hubs and HPC disks coated with PWA 110-21 coating, which could result in a rupture of the HPC front hub or HPC disk, leading to an uncontained engine failure and damage to the airplane.

AI-generated summary from the source AD text. Verify against the official source before acting.

Required Actions

Replace HPC front hubs and HPC disks that have operated with PWA 110-21 coating and operated in certain engine models, or visually inspect and perform FMPI for cracking of those parts and re-plate them if they pass inspection. Add JT8D-1, -1A, -1B, -7, -7A, -7B, -9, -9A, -11, -15, -15A, -17, -17A, -17R, and -17AR engines to the applicability.

AI-generated summary from the source AD text. Verify against the official source before acting.

Compliance Time

Before further flight

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Affected Aircraft

Pratt & Whitney JT8D-1, -1A, -1B, -7, -7A, -7B, -9, -9A, -11, -15, -15A, -17, -17A, -17R, -17AR, -209, -217, -217A, -217C, and -219 turbofan engines with HPC front hubs and HPC disks that have operated at any time with PWA 110-21 coating.

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

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