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Last updated: 14 August 2020
Datum:donderdag 24 september 1987
Type:Silhouette image of generic SW4 model; specific model in this crash may look slightly different
Swearingen SA227-AC Metro III
Luchtvaartmaatschappij:Horizon Air
Registratie: N2689E
Constructienummer: AC-653
Bouwjaar: 1986
Aantal vlieguren:774
Motoren: 2 Garrett TPE331-11U
Bemanning:slachtoffers: 0 / inzittenden: 3
Passagiers:slachtoffers: 0 / inzittenden: 0
Totaal:slachtoffers: 0 / inzittenden: 3
Schade: Vernield
Gevolgen: Written off (damaged beyond repair)
Plaats:Twin Falls City County Airport, ID (TWF) (   Verenigde Staten)
Fase: Start (TOF)
Soort vlucht:Training
Vliegveld van vertrek:Twin Falls City County Airport, ID (TWF/KTWF), Verenigde Staten
Vliegveld van aankomst:Twin Falls City County Airport, ID (TWF/KTWF), Verenigde Staten
The aircraft collided with the ILS glide slope antenna tower during a simulated engine failure takeoff from runway 07. The flaps were extended at or below the 50deg setting. The wingtip separated and the aircraft crashed out of control.

Probable Cause:

Preflight planning/preparation - Inadequate- Pilot in command
Raising of flaps - Not performed - Unspecified person
Checklist - Inattentive - Pilot in command
Supervision - Inadequate - Check pilot"

Accident investigation:
Investigating agency: NTSB
Status: Investigation completed
Duration: 1 year and 3 months
Accident number: SEA87MA192
Download report: Summary report

» ICAO Adrep Summary 1/90 (#31)


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This information is not presented as the Flight Safety Foundation or the Aviation Safety Network’s opinion as to the cause of the accident. It is preliminary and is based on the facts as they are known at this time.
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