Posts Tagged ‘Pratt & Whitney’

Airworthiness Directive for Pratt & Whitney Engine model PW4074 and PW4077

Thursday, August 4th, 2011

Airworthiness Directive 2011-14-07 for Pratt & Whitney Engine model PW4074 and PW4077

AD 2011-14-07.pdf

AD on Pratt and Whitney JT8D Engines

Thursday, March 24th, 2011

Airworthiness Directive 2011-07-02 on Pratt & Whitney JT8D-209, JT8D-217, JT8D-217A, JT8D-217C, and JT8D-219 Series Turbofan Engines superseding an existing airworthiness directive (AD) for the products listed above. That AD currently requires initial and repetitive torque inspections of the 3rd stage and 4th stage low-pressure turbine (LPT) blades for shroud notch wear and replacement of the blade if wear limits are exceeded. That AD also requires replacing LPT-to-exhaust case bolts and nuts with bolts and nuts made of Tinidur material. This new AD requires the same torque inspection, blade, and Tinidur nut replacement actions, but requires replacement of the LPT-to-exhaust case bolts with longer bolts made of Tinidur material. This AD also requires installation of crushable sleeve spacers on the bolts.

pdf icon2011-07-02.pdf

AD on Pratt & Whitney JT8D Series Engines

Friday, January 28th, 2011

Airworthiness Directive 2011-03-01 for Pratt & Whitney JT8D-7, -7A, -7B, -9,
-9A, -11, -15, -15A, -17, -17A, -17R, and -17AR Series Turbofan Engines

Subject: Critical life- limited parts – Pratt & Whitney Division

Turbofan engines

pdf icon2011-03-01.pdf

AD on impeller for Pratt & Whitney PW305 Engines

Wednesday, December 1st, 2010

Failure of the impeller AD 2010-24-05 for Pratt & Whitney PW305A and PW305B

pdf icon2010-24-05.pdf

Pratt & Whitney Turbofan Engines AD

Sunday, October 10th, 2010

AD 2010-21-17

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.

DATES: This AD becomes effective November 12, 2010.

For Pratt & Whitney JT8D-9, -9A, -11, -15, -17, and -17R Turbofan Engines

pdf icon2010-21-17.pdf