Aircraft collision with trees during unauthorized missed approach

Casualties unknown • North Andover, MA, US

An aircraft struck treetops following an unauthorized missed approach procedure issued by air traffic control near the airport.

What happened

During a flight approaching Runway 5, the pilot reported a missed approach to the tower controller. Following instructions from the approach controller, the tower controller issued an alternate missed approach procedure to the pilot. The specific instruction given was to turn right to a heading of 180, climb, and maintain 2,000 feet.

The pilot executed these instructions by turning right, which directed the aircraft toward rising terrain. Witnesses at the scene reported hearing the engines prior to the impact, but there was no evidence that the pilot had initiated an aggressive climb. The aircraft subsequently collided with the tops of trees measuring approximately 100 feet in height. The accident occurred about one-quarter mile east of the airport and to the right of the runway centerline. The terrain elevation at the crash site was approximately 200 feet, rising from an elevation of 149 feet at the runway threshold.

Findings

The investigation determined that the missed approach procedure issued by the tower controller was not authorized under the guidelines established in Air Traffic Control Manual 7110.65.

Probable cause

The issuance of an unauthorized missed approach procedure by the tower controller, which directed the aircraft into rising terrain.

Frequently asked questions

What happened in the 1990-07-29 Piper PA-23-250 accident near North Andover, MA?

An aircraft struck treetops following an unauthorized missed approach procedure issued by air traffic control near the airport.

What aircraft was involved and where did it happen?

The accident on 1990-07-29 involved a Piper PA-23-250, registration N333EP, operated by Sharqi & Mohammad Al-sharqi, at North Andover, MA.

What was the probable cause of the accident?

The issuance of an unauthorized missed approach procedure by the tower controller, which directed the aircraft into rising terrain.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001212X23781. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.

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