Casualties unknown

2004-05-24: Mooney M20J (N5763W) — Bruce E. Alspach — Oxford, CT

Oxford, CT, US

On May 24, 2004, a Mooney M20J (registration N5763W) operated by Bruce E. Alspach was involved in an aviation accident near Oxford, CT. Investigators recorded the probable cause as: The pilot's failure to maintain altitude/clearance during an instrument approach, which resulted in a collision with trees prior to the runway. Factors were nighttime conditions and cloud cover. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive; 8 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

A pilot on a night IFR flight crashed into trees while on an ILS approach to an airport with low clouds and visibility, after radar coverage was lost and witnesses reported the airplane flying low near a thunderstorm.

Accident Summary

A pilot conducting a night instrument flight rules (IFR) flight experienced an accident while attempting an ILS approach to the destination airport. The flight had been uneventful during takeoff, climb, and cruise. Prior to departure, the pilot received a weather briefing that included advisories for thunderstorms.

Approach and Descent

As the flight approached the destination airport, air traffic control informed the pilot that the control tower was closing and that an airplane ahead had landed successfully. The pilot was provided current weather conditions at the airport: scattered clouds at 200 feet and visibility of 2 miles. After being cleared for the ILS approach, the airplane intercepted the localizer course and crossed the final approach fix at an altitude of 2,700 feet. Radar coverage was lost when the airplane descended to about 1,900 feet.

Witness Accounts

Witnesses on the ground reported seeing the airplane flying at low altitude, near a thunderstorm and in fog. They observed the airplane's engine revving to high power as it descended into trees approximately half a mile short of the runway and 1,000 feet to the right of the extended centerline.

Weather and Mechanical Examination

Weather reports confirmed the presence of precipitation and lightning near the destination airport around the time of the accident. A post-accident examination of the airplane found no evidence of pre-impact mechanical malfunctions.

Findings

The sequence of events includes a night ILS approach in adverse weather conditions, a descent below radar coverage, and a collision with trees short of the runway. No pre-existing mechanical issues were identified.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20040602X00717. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.