NTSB Recommends Immediate Inspections For Pratt & Whitney PW2037s | Aero-News Network
Aero-News Network
RSS icon RSS feed
podcast icon MP3 podcast
Subscribe Aero-News e-mail Newsletter Subscribe

Airborne Unlimited -- Recent Daily Episodes

Episode Date

AMA Drone Report

Airborne-Monday

Airborne-Tuesday

Airborne-Wednesday

Airborne-Thursday

Airborne-Friday

Airborne-Unmanned w/AUVSI

Airborne On ANN

AMA 05.18.17

Airborne
05.15.17

Airborne
05.16.17

Airborne
05.17.17

Airborne
05.18.17

Airborne
05.19.17

Airborne-Unmanned 05.16.17

Airborne-YouTube

AMA 05.18.17

Airborne
05.15.17

Airborne
05.16.17

Airborne
05.17.17

Airborne
05.18.17

Airborne
05.19.17

Airborne-Unmanned 05.16.17

XPONENTIAL Innovation Preview -- www.allthingsunmanned.com

Thu, Oct 16, 2008

NTSB Recommends Immediate Inspections For Pratt & Whitney PW2037s

Engines Should Be Pulled From Service Pending Checks, Board Says

As a result of its ongoing investigation of an incident involving a Pratt & Whitney PW2037 engine experiencing an uncontained failure, the National Transportation Safety Board issued an urgent recommendation Thursday to the Federal Aviation Administration to require all Pratt & Whitney PW2037 engines be removed from service for inspection of the second stage turbine hubs when they have accumulated significantly fewer hours (10,880) and/or cycles (4,392) than the incident engine.

On August 6, 2008, Delta Air Lines flight 624, a Boeing 757-232 equipped with PW2037 engines, experienced an uncontained failure of the right engine’s high pressure turbine second stage hub at McCarran International Airport in Las Vegas, NV.

According to the pilots, at the start of the takeoff roll they heard a loud bang and observed that the right engine had lost power. The pilots rejected the takeoff and the airplane returned to the gate. All 166 passengers and the crew of four deplaned. There was no fire or injuries.

Examination of the incident airplane’s right engine revealed a hole in the bottom of the core cowl that was in line with a hole through the engine’s high pressure turbine. The inspection also revealed missing lugs and cracks in the turbine hub. Additionally, the Safety Board learned that at least four other PW2037 second stage turbine hubs have had cracks in the blade retaining lugs. And, NTSB has also learned that, during a routine overhaul, an American Airlines PW2037 second stage turbine hub with cracks in two adjacent blade retaining lugs was reported. The Safety Board has requested information on all of these hubs.    

"These discoveries raise serious concerns and warrant immediate action by the FAA," said NTSB Acting Chairman Mark V. Rosenker. "A string of consecutively fractured blade retaining lugs could result in the simultaneous release of multiple blades, which would exceed the design capacity of the engine’s cases and result in an uncontainment. Preventive safety measures must be taken."

The NTSB issued a second recommendation Thursday that would require a continuing inspection schedule for the hubs until the cause of previous instances of cracking is found and corrective action is identified.

The Safety Board is still investigating this incident.

FMI Read The NTSB's Recommendation Letter (.pdf)

Advertisement

More News

Aero-Help Wanted: ANN Needs Good Honest Marketing Staff

ANN/Airborne/Aero-TV Marketing Department Needs Part or Full Time Personnel E-I-C Note: After months of hints, we've unveiled the next steps in the Airborne programming initiative >[...]

ANN's Daily Aero-Term (05.21.17): Nonapproach Control Tower

Nonapproach Control Tower Authorizes aircraft to land or takeoff at the airport controlled by the tower or to transit the Class D airspace. The primary function of a nonapproach co>[...]

Airborne 05.19.17: Boeing T-X, WomenVenture 2017, BE-4 Rocket Test

Also: Orion Spacecraft, ANN Update, Sinful Sundays, ATC Privatization Oppo, Huerta@AUVSI, Fire Scout, 700th H130 Boeing will assemble its T-X Air Force training jet at its St. Loui>[...]

ANN's Daily Aero-Linx (05.21.17)

Aero Linx: The Middle East & North Africa Business Aviation Association ( MEBAA) To be the principal forum for gathering, understanding and communicating the needs and benefits>[...]

Aero-News: Quote of the Day (05.21.17)

“We have the honour of submitting our report on the New York-Paris flight, flown by Captain Charles A Lindbergh, and we respectfully ask that this new record is homologated b>[...]

blog comments powered by Disqus



Advertisement

Advertisement

Podcasts

Advertisement

© 2007 - 2017 Web Development & Design by Pauli Systems, LC