N654US

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 n°1 engine’s 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.
N654US — crash photo

Flight / Schedule

N654US

Aircraft

Boeing 767-200

Registration

N654US

MSN

25225/375

Year of Manufacture

1991

Date

September 22, 2000 at 12:00 AM

Type

CRASH

Flight Type

Test

Flight Phase

Parking

Crash Site

Airport (less than 10 km from airport)

Crash Location

Philadelphia Pennsylvania

Region

North America • United States of America

Coordinates

39.9527°, -75.1635°

Crash Cause

Technical failure

Narrative Report

On September 22, 2000 at 12:00 AM, N654US experienced a crash involving Boeing 767-200, operated by USAir - US Airways, with the event recorded near Philadelphia Pennsylvania.

The flight was categorized as test and the reported phase was parking at a airport (less than 10 km from airport) crash site.

3 people were known to be on board, 0 fatalities were recorded, 3 survivors were identified or estimated. This corresponds to an estimated fatality rate of 0.0%.

Crew on board: 3, crew fatalities: 0, passengers on board: 0, passenger fatalities: 0, other fatalities: 0.

The listed crash cause is technical failure. 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 n°1 engine’s 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.

Aircraft reference details include registration N654US, MSN 25225/375, year of manufacture 1991.

Geospatial coordinates for this crash are approximately 39.9527°, -75.1635°.

Fatalities

Total

0

Crew

0

Passengers

0

Other

0

Crash Summary

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 n°1 engine’s 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.

Cause: Technical failure

Occupants & Outcome

Crew On Board

3

Passengers On Board

0

Estimated Survivors

3

Fatality Rate

0.0%

Known people on board: 3

Operational Details

Flight Type

Test

Flight Phase

Parking

Crash Site

Airport (less than 10 km from airport)

Region / Country

North America • United States of America

Aircraft Details

Aircraft

Boeing 767-200

Registration

N654US

MSN

25225/375

Year of Manufacture

1991

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