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20010517010689I

Incident
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FAA incident report · Cessna 207A · Quinhagak, AK · May 17, 2001

FAA Aviation Safety Information Portal

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Date
May 17, 2001 · 21:00 local
Place
Quinhagak, AK
Phase of flight
Normal Cruise
Operating rules
General operating rules (Part 91)
Operator
ACSA
Aircraft
N917AC
NTSB investigation
NTSBANC01IA058
Reported as
Cessna 207A
Reported engine
Continental IO520F
People aboard
2
Fatal injuries
0

From the FAA’s Accident/Incident Data System (AIDS), through its Aviation Safety Information Portal, as reported. The NTSB investigates accidents separately, and its record of an accident is the fuller one. The aircraft is matched to the registry by N-number and event date, checked against the reported make and model; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

What happened

The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.

(-23)At cruise altitude of 3,000 feet, pilot noticed oil pressure dropping to zero, oil was spraying on the windshield. Pilot retarded the throttle to the start position, the propeller RPM increased for about 20 seconds, followed by the propeller detaching from the engine . The pilot gluided the aircraft of the beach and landed without further incindent.

As the FAA filed it

(-23)AT CRUISE ALTITUDE OF 3,000 FEET, PILOT NOTICED OIL PRESSURE DROPPING TO ZERO, OIL WAS SPRAYING ON THE WINDSHIELD. PILOT RETARDED THE THROTTLE TO THE START POSITION, THE PROPELLER RPM INCREASED FOR ABOUT 20 SECONDS, FOLLOWED BY THE PROPELLER DETACHING FROM THE ENGINE . THE PILOT GLUIDED THE AIRCRAFT OF THE BEACH AND LANDED WITHOUT FURTHER INCINDENT.

NTSB investigation

The NTSB’s investigation of this event, with its probable cause and findings. Matched to this report by N-number and date.

NTSB ANC01IA058Incident · No injuriesIncident investigationFinal reportQuinhagak, AKAn in-flight fracture of the engine crankshaft during descent, precipitated by restricted oil flow through an internal engine oil passage/port.May 18, 2001 · Minor damage