NTSB Identification: CHI99LA333.
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Accident occurred Wednesday, September 08, 1999 in PICKRELL, NE
Probable Cause Approval Date: 03/02/2001
Aircraft: Cessna 172K, registration: N84385
Injuries: 2 Uninjured.

NTSB investigators may not have traveled in support of this investigation and used data provided by various sources to prepare this aircraft accident report.

The airplane impacted terrain during a night forced landing after experiencing a loss of engine power. The pilot also stated that the engine was running so rough that it felt as if it had half a propeller and that he could not read the airspeed indicator or altimeter. He circled twice over an unlit gravel road and then touched down twice on the road before impacting a sign. The pilot stated that he made the landing with 15 degrees of flaps and not full flaps since it took two hands to fly the aircraft because of the vibration. Examination of the engine revealed that the engine oil dipstick guide tube was loose which resulted in a loss of engine oil.

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

the loose oil dipstick guide tube resulting in loss of oil and the engine failure. The night condition was a contributing factor.

Full narrative available

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