Casualties unknown

1992-10-12: Boeing 737-300 (N586US) — Usair — Pittsburgh, PA

Pittsburgh, PA, US

On October 12, 1992, a Boeing 737-300 (registration N586US) operated by Usair was involved in an aviation accident near Pittsburgh, PA. Investigators recorded the probable cause as: A high cycle fatigue failure of two blades on the stage 1 high pressure compressor of the right engine. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive; 16 related events involving the same aircraft type or operator are linked below.

Sourcesthe U.S. National Transportation Safety Board (NTSB) historical archivePrimary reportUpdated 1781061362Data APIEditorial standards
Boeing 737-300
Photo: San Diego Air & Space Museum Archives / Public domain, via Wikimedia Commons

A Boeing 737-300 aborted its takeoff roll after smoke and flames were observed from the right engine. The aircraft was stopped safely, and all aboard evacuated without injury.

What happened

The air carrier Boeing 737-300 was in the process of a takeoff roll when crew members on other aircraft reported that smoke and flames were emanating from the right engine. Upon receiving this information, the flight crew immediately decided to abort the takeoff. They successfully brought the airplane to a stop on the runway and initiated an evacuation using the emergency slides.

The investigation

An examination of the affected engine revealed that the failure was contained within the engine interior. The fire was suppressed once the engine was shut down. Further inspection identified a high cycle fatigue failure affecting two blades of the stage 1 high pressure compressor.

Findings

The incident involved Boeing 737-300 operations during the takeoff phase. The mechanical issue resulted in no injuries among the 5 crewmembers and 128 passengers. The failure was isolated to the engine components, preventing further damage to the airframe.

Probable cause

A high cycle fatigue failure of two blades on the stage 1 high pressure compressor of the right engine.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001211X15931. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.