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Accident description
Last updated: 20 October 2017
Status:Final
Date:Monday 16 August 1999
Time:17:33
Type:Silhouette image of generic SW4 model; specific model in this crash may look slightly different
Swearingen SA227-AC Metro III
Operator:Merlin Express
Registration: N2671V
C/n / msn: AC-437
First flight: 1981
Total airframe hrs:19317
Engines: 2 Garrett TPE331-11U
Crew:Fatalities: 0 / Occupants: 2
Passengers:Fatalities: 0 / Occupants: 0
Total:Fatalities: 0 / Occupants: 2
Airplane damage: Substantial
Airplane fate: Written off (damaged beyond repair)
Location:San Antonio International Airport, TX (SAT) (   United States of America)
Phase: Landing (LDG)
Nature:Training
Departure airport:San Antonio International Airport, TX (SAT/KSAT), United States of America
Destination airport:San Antonio International Airport, TX (SAT/KSAT), United States of America
Narrative:
While on a training flight out of San Antonio, the instructor told the student to execute 'a no flap landing due to a simulated hydraulic pump failure.
The student pilot maneuvered the airplane to intercept the ILS (instrument landing system) 12R approach, established the airplane on the approach and called for the "Emergency Gear Extension Checklist." The instructor stated that the landing gear could not be extended until landing was assured, but he forgot to lower the gear afterwards. The Metro III plane landed wheels up and slid off the side of the runway.

Probable Cause:

PROBABLE CAUSE: "The instructor pilot's failure to complete the Emergency Gear Extension Checklist, resulting in the inadvertent wheels-up landing. A factor was the instructor pilot's fatigued condition. "

Accident investigation:
cover
Investigating agency: NTSB
Status: Investigation completed
Duration: 1 year
Accident number: FTW99FA223
Download report: Summary report

Classification:
Wheel(s) up landing

Sources:
» NTSB
» Scramble 244


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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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