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Last updated: 22 April 2019
Date:Friday 22 April 1966
Type:Silhouette image of generic L188 model; specific model in this crash may look slightly different
Lockheed L-188C Electra
Operator:American Flyers Airline
Registration: N183H
C/n / msn: 1136
First flight: 1961
Total airframe hrs:4019
Engines: 4 Allison 501-D13A
Crew:Fatalities: 5 / Occupants: 5
Passengers:Fatalities: 78 / Occupants: 93
Total:Fatalities: 83 / Occupants: 98
Aircraft damage: Damaged beyond repair
Location:2,4 km (1.5 mls) NE of Ardmore Municipal Airport, OK (ADM) (   United States of America)
Phase: Approach (APR)
Nature:Domestic Non Scheduled Passenger
Departure airport:Monterey Peninsula Airport, CA (MRY/KMRY), United States of America
Destination airport:Ardmore Municipal Airport, OK (ADM/KADM), United States of America
Flightnumber: 280/D
American Flyers Flight 280/D, a Lockheed Electra, crashed 2,4 km northeast of the Ardmore Municipal Airport, OK (ADM). Of the 93 passengers and five crewmembers aboard, 18 passengers survived, however, three of them later succumbed to injuries. The aircraft was destroyed by impact and subsequent fire.
The aircraft operated on a Military Air Command contract Civil Air Movement Charter flight from Monterey, CA (MRY) to Columbus, GA via Ardmore, OK.
Flight 280/D departed Monterey Peninsula Airport at 16:32.
The crew missed a runway 08 ADF instrument approach to Ardmore, so they attempted a visual circling approach to runway 30. The aircraft struck a hill at an elevation of 963 feet (airport elevation being 762 feet msl).

Probable Cause:

PROBABLE CAUSE: "The incapacitation, due to a coronary insufficiency, of the pilot-in-command at a critical point during visual, circling approach being conducted under instrument flight conditions."

» American Flyers Crash Memorial


This map shows the airport of departure and the intended destination of the flight. The line between the airports does not display the exact flight path.
Distance from Monterey Peninsula Airport, CA to Ardmore Municipal Airport, OK as the crow flies is 2242 km (1401 miles).
Accident location: Exact; as reported in the official accident report.

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Lockheed L-188

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  • 10th loss
  • 7th fatal accident
  • The worst accident (at the time)
  • 5th worst accident (currently)
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 United States of America
  • 7th worst accident (at the time)
  • 27th worst accident (currently)
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