Beschrijving:
The aircraft experienced an uncontained failure of the high pressure turbine stage 1 disk in the No. 1 engine during a high-power ground run for maintenance. Because of a report of an in-flight loss of oil, US Airways mechanics had replaced a seal on the No. 1 engines integral drive generator and were performing the high-power engine run to check for any oil leakage. For the maintenance check, the mechanics had taxied the airplane to a remote taxiway on the airport and had performed three runups for which no anomalies were noted. During the fourth excursion to high power, at around 93 percent N1 rpm, there was a loud explosion followed by a fire under the left wing of the airplane. The mechanics shut down the engines, discharged both fire bottles into the No. 1 engine nacelle, and evacuated the airplane. Although both fire bottles were discharged, the fire continued until it was extinguished by airport fire department personnel. The aircraft was damaged beyond repair.
accident date: 22-09-2000
type: Boeing 767-2B7ER
registration: N654US
accident date: 22-09-2000
type: Boeing 767-2B7ER
registration: N654US
| Status: | Accident investigation report completed and information captured |
| Datum: | vrijdag 22 september 2000 |
| Type: |  Boeing 767-2B7ER |
| Luchtvaartmaatschappij: | US Airways |
| Registratie: | N654US |
| Constructienummer: | 25225/375 |
| Bouwjaar: | 1991-06-05 (9 years 4 months) |
| Motoren: | 2 General Electric CF6-80C2B2 |
| Bemanning: | slachtoffers: 0 / inzittenden: 3 |
| Passagiers: | slachtoffers: 0 / inzittenden: 0 |
| Totaal: | slachtoffers: 0 / inzittenden: 3 |
| Schade: | Afgeschreven |
| Gevolgen: | Written off (damaged beyond repair) |
| Plaats: | Philadelphia, PA ( Verenigde Staten)
|
| Fase: | Geparkeerd (STD) |
| Soort vlucht: | - |
| Vliegveld van vertrek: | - |
| - |
The aircraft experienced an uncontained failure of the high pressure turbine stage 1 disk in the No. 1 engine during a high-power ground run for maintenance. Because of a report of an in-flight loss of oil, US Airways mechanics had replaced a seal on the No. 1 engines integral drive generator and were performing the high-power engine run to check for any oil leakage. For the maintenance check, the mechanics had taxied the airplane to a remote taxiway on the airport and had performed three runups for which no anomalies were noted. During the fourth excursion to high power, at around 93 percent N1 rpm, there was a loud explosion followed by a fire under the left wing of the airplane. The mechanics shut down the engines, discharged both fire bottles into the No. 1 engine nacelle, and evacuated the airplane. Although both fire bottles were discharged, the fire continued until it was extinguished by airport fire department personnel. The aircraft was damaged beyond repair.
Veiligheidsmaatregelen
The NTSB issued 4 safety recommendations regarding maintenance and inspection of the General Electric CF6-80C2 engines high pressure
turbine stage 1 disk.
turbine stage 1 disk.
Foto's
accident date: 22-09-2000
type: Boeing 767-2B7ER
registration: N654US
accident date: 22-09-2000
type: Boeing 767-2B7ER
registration: N654US
This information is not presented as the Flight Safety Foundation or the Aviation Safety Network’s opinion as to the cause of the accident. It is preliminary and is based on the facts as they are known at this time.
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