AD (Corrected): Pratt & Whitney | Aero-News Network
Aero-News Network
RSS icon RSS feed
podcast icon MP3 podcast
Subscribe Aero-News e-mail Newsletter Subscribe

Airborne Unlimited -- Most Recent Daily Episodes

Episode Date

Airborne-Monday

Airborne-Tuesday

 Airborne-Wednesday Airborne-Thursday

Airborne-Friday

Airborne On YouTube

Airborne-Unlimited-07.07.25

Airborne-NextGen-07.08.25

AirborneUnlimited-07.09.25

Airborne-FlightTraining-07.10.25

AirborneUnlimited-07.11.25

Mon, May 18, 2009

AD (Corrected): Pratt & Whitney

AD NUMBER: 2009-10-01

MANUFACTURER: Pratt & Whitney (PW) JT9D-7R4 Series Turbofan Engines
SUBJECT: Airworthiness Directive 2009-10-01

SUMMARY: The FAA is superseding an existing airworthiness directive (AD) for PW JT9D-7R4 series turbofan engines. That AD currently requires removing certain reduced cooling flow 2nd stage high-pressure turbine (HPT) vane assemblies installed in certain 2nd stage HPT vane cluster assemblies. It also requires a visual and a fluorescent penetrant inspection (FPI) of the 2nd stage HPT air seal assembly, part number (P/N) 815097. This AD requires a visual and FPI of all P/N 2nd stage HPT air seal assemblies that were used with reduced cooling flow 2nd stage HPT vane assemblies. This AD results from PW identifying additional P/N air seal assemblies that are affected by the unsafe condition. We are issuing this AD to prevent uncontained failure of the 2nd stage HPT air seal assembly, leading to engine in-flight shutdown and damage to the airplane.

FMI: http://rgl.faa.gov/Regulatory_and_Guidance_Library/rgAD.nsf/0/79AE290236D50770862575AD00526AE3?OpenDocument

Advertisement

More News

NTSB Final Report: Aviat A1

Airplane Bounced About 3 Ft Then Touched Back Down And Then, With No Brakes Applied, The Airplane Began Veering To The Left Analysis: The pilot entered the airport traffic pattern >[...]

ANN's Daily Aero-Linx (07.08.25)

Aero Linx: British Microlight Aircraft Association (BMAA) The primary focus within all aviation activity is SAFETY. In all aspects of our sport SAFETY must come first, whether it b>[...]

Classic Aero-TV: Fly Corvair’s Reliable Engine Alternative

From SnF25 (YouTube Edition): William Wynne Builds Practical Aircraft Engines on the Corvair Platform Seeking an affordable alternative to the traditional aircraft engine options, >[...]

ANN FAQ: Contributing To Aero-TV

How To Get A Story On Aero-TV News/Feature Programming How do I submit a story idea or lead to Aero-TV? If you would like to submit a story idea or lead, please contact Jim Campbel>[...]

Classic Aero-TV: CiES Fuel-Quantity and e-Throttle Systems Praised

From 2023 (YouTube Edition): Bridge of CiES CiES Inc. is a Bend, Oregon-based designer and manufacturer of modular embedded aircraft systems and sensors. The company’s fuel-l>[...]

blog comments powered by Disqus



Change Display

Headlines Only | Headlines w/ Teasers | View Everything

Advertisement

Top Videos

Airborne 07.11.25: New FAA Bos, New NASA Boss (Kinda), WB57s Over TX

Airborne-Flight Training 07.10.25: ATC School, Air Race Classic, Samson School

Airborne 07.09.25: B-17 Sentimental Journey, Airport Scandal, NORAD Intercepts

See All

Advertisement

Podcasts

Advertisement

© 2007 - 2025 Web Development & Design by Pauli Systems, LC