Summary
The FAA is adopting a new airworthiness directive (AD) for Pratt & Whitney (PW) JT8D-9, -9A, -11, -15, -17, and -17R turbofan engines. This AD requires overhauling fan blade leading edges at the first shop visit after 4,000 cycles-in-service (CIS) since the last total fan blade overhaul was performed. This AD results from reports of failed fan blades. We are issuing this AD to prevent high-cycle fatigue cracking at the blade root, which could result in uncontained failures of first stage fan blades and damage to the airplane.
Directive Details
AD Number
FAA-2010-0514
Document Number
2010-25391
Type
Rule
Publication Date
October 8, 2010
Effective Date
November 12, 2010
Affected Manufacturer
Pratt & Whitney JT8D-9, -9A, -11, -15, -17, and -17R Turbofan
Criticality
important
Emergency
No
Docket ID
Docket No. FAA-2010-0514
Topics
Official Documents
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