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-06.23.25

Airborne-NextGen-06.24.25

AirborneUnlimited-06.25.25

Airborne-AffordableFlyers-06.26.25

AirborneUnlimited-06.27.25

Fri, Jan 04, 2008

AD: Pratt & Whitney

AD NUMBER: 2007-26-20
MANUFACTURER: Pratt & Whitney
SUBJECT: Airworthiness Directive 2007-26-20
SUMMARY:
The FAA is adopting a new airworthiness directive (AD) for PW PW4164, PW4168, and PW4168A turbofan engines with certain low pressure turbine (LPT) stage 4 disks, part number(P/N) 51N404, installed.

This AD requires removing certain LPT stage 4 disks, listed by serial number at the next piece-part exposure or within 7,500 cycles-since-new (CSN).

This AD results from a report of improperly manufactured LPT stage 4 disks.

We are issuing this AD to prevent an uncontained engine failure due to low-cycle fatigue (LCF), which could result in damage to the airplane.

FMI: www.faa.gov/regulations_policies/airworthiness_directives/

Advertisement

More News

ANN's Daily Aero-Linx (06.29.25)

Aero Linx: Transport Canada We are a federal institution, leading the Transport Canada portfolio and working with our partners. Transport Canada is responsible for transportation p>[...]

ANN's Daily Aero-Term (06.29.25): Gross Navigation Error (GNE)

Gross Navigation Error (GNE) A lateral deviation from a cleared track, normally in excess of 25 Nautical Miles (NM). More stringent standards (for example, 10NM in some parts of th>[...]

Classic Aero-TV: Anticipating Futurespace - Blue Origin Visits Airventure 2017

From AirVenture 2017 (YouTube Edition): Flight-Proven Booster On Display At AirVenture… EAA AirVenture Oshkosh is known primarily as a celebration of experimental and amateu>[...]

NTSB Final Report: Cirrus SR22

Aircraft Parachute System (CAPS) Was Deployed About 293 Ft Above Ground Level, Which Was Too Low To Allow For Full Deployment Of The Parachute System Analysis: The day before the a>[...]

Airborne Affordable Flyers 06.26.25: PA18 Upgrades, ‘Delta Force’, Rhinebeck

Also: 48th Annual Air Race Classic, Hot Air Balloon Fire, FAA v Banning 100LL, Complete Remote Pilot The news Piper PA-18 Super Cub owners have been waiting for has finally arrived>[...]

blog comments powered by Disqus



Advertisement

Advertisement

Podcasts

Advertisement

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