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NTSB Report
April 29, 1986 · Cessna 177RG · N34020
Placerville, CA
Overview
Report Status
Preliminary report
Event Type
Accident
Date
April 29, 1986
Injury Outcomes
No injuries (2 uninjured)
Location
Placerville, CA
Aircraft
Cessna 177RG
Tail Number
N34020
Operator
Puc Flight Service
Injuries
None
Aircraft Damage
Destroyed
NTSB Number
LAX86LA199
WHILE ENROUTE TO SAN FRANCISCO, CA THE ENGINE BEGAN TO OVERSPEED & THE PROP GOV CONTROL WAS NOT EFFECTIVE IN ARRESTING/CONTROLLING THE OVERSPEED CONDITION. SHORTLY THEREAFTER THE ENGINE OIL PRESSURE DEPLETED TO ZERO. THE PILOT ELECTED TO LAND IN THE ICE HOUSE RESERVOIR. THE PLT & PAX WERE RESCUED BY LOCAL BOATERS. EXAMINATION OF THE ENGINE DISCLOSED THE GOVERNOR OIL PRESSURE LINE WAS CHAFFING AGAINST THE ENGINE CRANKCASE AND FRACTURED. THE LINE WAS NOT SECURED WITH CLAMPS AS REQUIRED BY THE AVCO LYCOMING MAINTENANCE MANUAL. A 100-HOUR INSPECTION WAS PERFORMED ON THE ACFT THE DAY BEFORE THE ACCIDENT.
Full Narrative
WHILE ENROUTE TO SAN FRANCISCO, CA THE ENGINE BEGAN TO OVERSPEED & THE PROP GOV CONTROL WAS NOT EFFECTIVE IN ARRESTING/CONTROLLING THE OVERSPEED CONDITION. SHORTLY THEREAFTER THE ENGINE OIL PRESSURE DEPLETED TO ZERO. THE PILOT ELECTED TO LAND IN THE ICE HOUSE RESERVOIR. THE PLT & PAX WERE RESCUED BY LOCAL BOATERS. EXAMINATION OF THE ENGINE DISCLOSED THE GOVERNOR OIL PRESSURE LINE WAS CHAFFING AGAINST THE ENGINE CRANKCASE AND FRACTURED. THE LINE WAS NOT SECURED WITH CLAMPS AS REQUIRED BY THE AVCO LYCOMING MAINTENANCE MANUAL. A 100-HOUR INSPECTION WAS PERFORMED ON THE ACFT THE DAY BEFORE THE ACCIDENT.
Flight
Event TypeAccident
Event Time15:30 PDT
Nearest AirportSo. Lake Tahoe (18nm WSW)
Runway0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftCessna 177RG
Tail NumberN34020
Aircraft CategoryAir
DamageDestroyed
OperatorPuc Flight Service
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · IO-360-AIB6D · Reciprocating · 200
Seats4
People & Injuries
Injury SummaryNo injuries (2 uninjured)
Fatal0
Serious0
Minor0
Uninjured2
Total2
Crew 1Age 38 · Third Class
Conditions
ConditionsVMC
LightDaylight
Wind210° @ 11 kt
Visibility90 sm
CeilingNone
Temperature / Dew Point57 / 16 C
Altimeter30.00 inHg
Observation Time23:45
Weather SourceWFAC