NTSB Identification: CHI85FEV02.
The docket is stored on NTSB microfiche number 28510.
Accident occurred Saturday, August 17, 1985 in ELMORE, IL
Aircraft: de Havilland DH-82A, registration: N510AB
Injuries: 1 Serious.

NTSB investigators either traveled in support of this investigation or conducted a significant amount of investigative work without any travel, and used data obtained from various sources to prepare this aircraft accident report.

WHILE ON A X-COUNTRY FLT, THE ENG LOST POWER & THE PROP CONTINUED TO WINDMILL. SUBSEQUENTLY, THE ACFT CRASHED DURING AN EMERG LANDING. DURING THE CRASH LANDING, THE PLT'S SHOULDER HARNESS FAILED AT THE UPPER ATTACHMENT POINT & HE RECEIVED HEAD & BACK INJURIES. AN EXAM OF THE ENG REVEALED THAT THE 2ND & AFT EXHAUST VALVES WERE STICKING.

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

ENGINE ASSEMBLY,VALVE,INTAKE..BINDING(MECHANICAL)

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