Casualties unknown

ILS Approach in Ground Fog and Bright Night Leads to Off-Runway Touchdown and Approach Light Impact (N166AW)

Dfw Airport, TX, US

On December 8, 1993, a Boeing 737-33A (registration N166AW) operated by America West Airlines was involved in an aviation accident near Dfw Airport, TX. Investigators recorded the probable cause as: The pilot-in-command failed to attain the glide slope and the copilot failed to advise him of this. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive; 10 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 N166AW
Aircraft registered N166AW. Photo: Aero Icarus from Zürich, Switzerland / CC BY-SA 2.0, via Wikimedia Commons

During an ILS approach in ground fog and bright night, the pilot descended at excessive rate, touching down 1,095 feet short. After multiple touchdowns and impact with approach lights, the crew performed a go-around and diverted to an alternate, where a fly-by assessed landing gear before a normal landing.

Circumstances

The aircraft was conducting an instrument landing system (ILS) approach in conditions of ground fog and bright night. The pilot-in-command failed to attain the glide slope, and the copilot did not advise him of this deviation. The appropriate rate of descent for the glide slope at the approach ground speed was approximately 360 feet per minute.

Sequence of Events

When the aircraft was 300 feet above the ground, the pilot descended through the glide slope at a rate of descent of 1,215 feet per minute. The rate of descent at touchdown was approximately 600 feet per minute, and touchdown occurred 1,095 feet short of the runway threshold. Following the initial touchdown, the aircraft became airborne, then touched down a second time. During the ground roll, the aircraft impacted five sets of approach lights located off the end of the runway. As the aircraft rolled onto the runway threshold, it again became airborne, at which point the crew abandoned the approach and proceeded to an alternate destination.

Aftermath

Upon arrival at the alternate, the crew performed a fly-by so that the tower could assess possible landing gear damage. This was followed by a normal landing.

Probable cause

The pilot-in-command failed to attain the glide slope and the copilot failed to advise him of this.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001211X13852. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.