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FILE DATE LOCATION AIRCRAFT DATA INJURIES FLIGHT PILOT DATA
F S M/N PURPOSE
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2-0221 67/1/19 SAN MATEO CALIF PIPER PA-23 CR- 1 0 0 NONCOMMERCIAL PRIVATE, AGE 37, UNK/NR
TIME - 0118 N4925P PX- 1 0 0 BUSINESS TOTAL HOURS, UNK/NR IN
DAMAGE-DESTROYED OT- 0 0 0 TYPE, NOT INSTRUMENT
RATED.
NAME OF AIRPORT - SAN FRANCISCO
TYPE OF ACCIDENT PHASE OF OPERATION
ENGINE FAILURE OR MALFUNCTION IN FLIGHT: NORMAL CRUISE
COLLISION WITH GROUND/WATER: UNCONTROLLED LANDING: FINAL APPROACH
PROBABLE CAUSE(S)
POWERPLANT - ENGINE STRUCTURE: PISTON,PISTON RINGS
POWERPLANT - ENGINE STRUCTURE: VALVE ASSEMBLIES
MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE
PILOT IN COMMAND - ATTEMPTED OPERATION BEYOND EXPERIENCE/ABILITY LEVEL
PILOT IN COMMAND - IMPROPER IFR OPERATION
FACTOR(S)
WEATHER - LOW CEILING
WEATHER - FOG
MISCELLANEOUS ACTS,CONDITIONS - AIRCRAFT CAME TO REST IN WATER
COMPLETE POWER LOSS - COMPLETE ENGINE FAILURE/FLAMEOUT-1 ENGINE
WEATHER BRIEFING - BRIEFED BY FLIGHT SERVICE PERSONNEL, BY RADIO
WEATHER FORECAST - FORECAST SUBSTANTIALLY CORRECT
EMERGENCY CIRCUMSTANCES - PRECAUTIONARY LANDING ON AIRPORT
ADVERSE/UNFAVORABLE WEATHER
SUSPECTED MECHANICAL DISCREPANCY
SKY CONDITION CEILING AT ACCIDENT SITE
OBSCURATION UNKNOWN/NOT REPORTED
VISIBILITY AT ACCIDENT SITE PRECIPITATION AT ACCIDENT SITE
2 MILES OR LESS NONE
OBSTRUCTIONS TO VISION AT ACCIDENT SITE TEMPERATURE-F
GROUND FOG 41
WIND DIRECTION-DEGREES WIND VELOCITY-KNOTS
30 5
TYPE OF WEATHER CONDITIONS TYPE OF FLIGHT PLAN
IFR IFR
REMARKS- NO.2 PISTON AND EXHAUST VALVE, RT ENGINE, FAILED. NON-INST RATED PLT.
