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Delta 738 "contained blade failure"

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Delta 738 "contained blade failure"

Old 20th Feb 2011, 23:43
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Delta 738 "contained blade failure"

(CNN) -- A commercial flight from Fort Lauderdale, Florida, to Minneapolis was aborted shortly after takeoff Sunday morning because of an indicator warning that one of the aircraft's engines had been damaged, according to airline officials.
Delta Air Lines Flight 1846 returned to the Fort Lauderdale-Hollywood International Airport within minutes of its 7:45 a.m. takeoff without incident or injury to any of its 119 passengers or six crew members, according to an airline spokesman.
All were rescheduled to take another flight to Minnesota later Sunday afternoon, said Delta spokesman Anthony Black.
Black said Delta mechanics confirmed that parts of the twin-engine Boeing 737-800 had been damaged, though the spokesman did not know which ones.
"Incidents like this are extremely rare, but the crew knows the protocol and it's clear the pilot took appropriate action," Black said.
Broward County Aviation Department spokesman Greg Meyer told CNN affiliate WPLG-TV that pieces of what appeared to be parts of the jet's damaged engine were recovered near the airport.
Federal Aviation Administration spokeswoman Kathleen Bergen said an initial inspection of the aircraft revealed a "contained failure."
"Engine turbine blades exited the rear of the engine, they did not penetrate the engine cover," wrote Bergen in an e-mail to CNN. Bergen said the FAA is continuing to investigate the incident.
No cause suggested at this time.
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Old 22nd Feb 2011, 06:54
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A Brief History Of Other Reports.

From the FAA Technical Center, a May 1999 Report titled Large Engine Uncontained Debris Analysis. DOT/FAA/AR-99/11. 88 pages. Link > http://www.tc.faa.gov/its/worldpac/techrpt/ar99-11.pdf
On page 1-2, it says that; “A database was developed that includes details of 65 large engine uncontained events. The database spans the period from November 1961 through the present. The primary sources of information were private sector engine companies and airframe manufacturers…The 65 events in the database are not merely a representative selection of the data but the only events with sufficient information to conduct the type of analysis herein. There are many additional fan blade and turbine disk events that are not in the database because of a lack of detailed data.”
From data taken from Service Difficulty Reports and NTSB records, there are over 167 GE failures including 67 uncontained failures from 1971 through April 2010.
More than half have no cause given. More than 8 have occurred in 2010.
The most detailed reports come from the NTSB’s records of two CF-6-80s, which utterly destroyed 767s on the ground on US Air in 2000 and on American June 2006 described in the NTSB Safety Recommendation Letter A-06-60 through –64 and A-00-212-124 . Links > http://www.ntsb.gov/Recs/letters/2006/A06_60_64.pdf and http://www.ntsb.gov/recs/letters/2000/A00_121_124.pdf - respectively.
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