NTSB Identification: LAX91DUM02.
The docket is stored on NTSB microfiche number 43797.
Accident occurred Tuesday, October 16, 1990 in EL CENTRO, CA
Probable Cause Approval Date: 11/23/1992
Aircraft: Ayres S2RT-T34, registration: N4001M
Injuries: 1 Serious.

THE PILOT EXPERIENCED A BRIGHT FLASH OUT OF THE EXHAUST PORTS OF THE ENGINE AND HEARD A LOUD BANG AT THE SAME TIME. HE MADE AN EMERGENCY LANDING IN A FIELD AND AFTER ROLLING ABOUT 100 FEET THE AIRCRAFT COLLIDED WITH ONE TON BALES OF HAY. EXAMINATION AND TEARDOWN OF THE ENGINE REVEALED NO PHYSICAL EVIDENCE OF AN ENGINE MALFUNCTION OR PROBLEM.

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

COLLISION WITH A GROUND OBJECT AFTER THE PILOT SUCCESSFULLY MADE A NIGHT TIME EMERGENCY LANDING AFTER EXPERIENCING AN ENGINE POWER INTERRUPTION FOR UNDETERMINED REASONS.

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