AD: 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-05.13.24

Airborne-NextGen-05.07.24

 Airborne-Unlimited-05.08.24 Airborne-FlightTraining-05.09.24

Airborne-Unlimited-05.10.24

Sun, Aug 26, 2007

AD: Pratt & Whitney

AD NUMBER: 2007-17-21
MANUFACTURER: Pratt & Whitney
SUBJECT: Airworthiness Directive 2007-17-21
SUMMARY: The FAA is adopting a new airworthiness directive (AD) for PW JT9D-7R4 series turbofan engines.

This AD requires removing reduced cooling flow 2nd stage high pressure turbine (HPT) vane assemblies, part numbers (P/Ns) 797282, 796972, 800082, 800072, 803182, 803282, and 822582, installed in 2nd stage HPT vane cluster assemblies P/Ns 797592, 797372, 799872, 799782, and 822572.

It also requires a visual and a fluorescent penetrant inspection (FPI) of the 2nd stage HPT air seal assembly, P/N 815097. This AD results from a report of an uncontained failure of the 2nd stage HPT air seal assembly, caused by the air seal assembly brace disengaging from the air seal, due to insufficient cooling air flow.

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: www.faa.gov/regulations_policies/airworthiness_directives/

Advertisement

More News

Sierra Space Repositions Dream Chaser for First Mission

With Testing Soon Complete, Launch Preparations Begin in Earnest Sierra Space's Dream Chaser has been put through the wringer at NASA's Glenn Armstrong Test Facility in Ohio, but w>[...]

ANN's Daily Aero-Term (05.10.24): Takeoff Roll

Takeoff Roll The process whereby an aircraft is aligned with the runway centerline and the aircraft is moving with the intent to take off. For helicopters, this pertains to the act>[...]

Aero-News: Quote of the Day (05.10.24)

“We’re proud of the hard work that went into receiving this validation, and it will be a welcome relief to our customers in the European Union. We couldn’t be mor>[...]

Aero-News: Quote of the Day (05.11.24)

"Aircraft Spruce is pleased to announce the acquisition of the parts distribution operations of Wag-Aero. Wag-Aero was founded in the 1960’s by Dick and Bobbie Wagner in the >[...]

ANN's Daily Aero-Term (05.11.24): IDENT Feature

IDENT Feature The special feature in the Air Traffic Control Radar Beacon System (ATCRBS) equipment. It is used to immediately distinguish one displayed beacon target from other be>[...]

blog comments powered by Disqus



Change Display

Headlines Only | Headlines w/ Teasers | View Everything

Advertisement

Top Videos

Airborne-NextGen 05.14.24: 5293 Drone Record, Airbus Acquires, VA-1X UAS Accident

Airborne 05.13.24: DC-9 Jump Plane, Wag-Aero Sold, VA-1X AAIB Report

Airborne 05.10.24: Icon Auction, Drunk MedEvac Pilot, Bell ALFA

See All

Advertisement

Podcasts

Advertisement

© 2007 - 2024 Web Development & Design by Pauli Systems, LC