Casualties unknown

In-Flight Engine Fire and Landing Gear Malfunction on American Airlines Flight 1400 (N454AA)

St. Louis, MO, US

On September 28, 2007, a Mcdonnell Douglas DC-9-82 (MD-82) (registration N454AA) operated by American Airlines was involved in an aviation accident near St. Louis, MO. Investigators recorded the probable cause as: American Airlines’ maintenance personnel’s use of an inappropriate manual engine start procedure, which led to the uncommanded opening of the left engine air turbine starter valve, and a subsequent left engine fire, which was prolonged by the flight crew’s… This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive; 3 related events involving the same aircraft type or operator are linked below.

Sourcesthe U.S. National Transportation Safety Board (NTSB) historical archivePrimary reportUpdated 2026-06-10Data APIEditorial standards
Aircraft registered N454AA
Aircraft registered N454AA. Photo: Aero Icarus from Zürich, Switzerland / CC BY-SA 2.0, via Wikimedia Commons

On September 28, 2007, American Airlines flight 1400, a McDonnell Douglas DC-9-82, experienced a left engine fire during climb from St. Louis. The nose gear failed to extend on return, but was deployed via emergency procedure. No injuries were reported, but substantial fire damage occurred.

Incident

On September 28, 2007, at approximately 1313 central daylight time, American Airlines flight 1400 experienced an in-flight left engine fire during the departure climb from Lambert St. Louis International Airport (STL) in St. Louis, Missouri. The aircraft was a McDonnell Douglas DC-9-82, registered as N454AA.

Sequence of Events

Following the engine fire, the flight crew initiated a return to STL. During the approach, the nose landing gear failed to extend. The crew executed a go-around and successfully extended the nose gear using the emergency extension procedure. Subsequently, the flight crew conducted an emergency landing. All occupants—2 flight crewmembers, 3 flight attendants, and 138 passengers—deplaned on the runway without reported injuries. The airplane sustained substantial damage due to the fire.

Flight Details

The scheduled passenger flight was operating under 14 Code of Federal Regulations Part 121 on an instrument flight rules flight plan. Visual meteorological conditions prevailed at the time of the accident.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20071005X01522. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.