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NTSB Report
March 30, 1993 · Cessna 152 · N89174
Dunsmuir, CA
Overview
Report Status
Probable Cause
Event Type
Accident
Date
March 30, 1993
Injury Outcomes
1 injury (1 fatality)
Location
Dunsmuir, CA
Aircraft
Cessna 152
Tail Number
N89174
Operator
Palo Alto Flying Club
Injuries
Fatal
Aircraft Damage
Destroyed
NTSB Number
LAX93FA165
AFTER RECEIVING A WEATHER BRIEFING, THE COMMERCIAL/INSTRUMENT RATED PILOT, THE SOLE OCCUPANT, DEPARTED ON A NIGHT CROSS COUNTRY FLIGHT OVER MOUNTAINOUS TERRAIN. THE FORECASTED WEATHER CONDITIONS INCLUDED SCATTERED CLOUDS AT 4,000 TO 6,000 FEET, BROKEN CLOUDS AT 8,000 FEET WITH A FREEZING LEVEL OF 7,000 FEET. NO FLIGHT PLAN WAS FILED. NO FURTHER CONTACT WITH THE AIRPLANE WAS FOUND UNTIL THE WRECKAGE OF THE AIRPLANE WAS LOCATED 7 DAYS AFTER DEPARTURE. WITNESSES IN THE AREA OF THE ACCIDENT REPORTED CONTINUOUS RAIN ON THE NIGHT OF THE ACCIDENT. THE LAST NTAP RADAR DATA OF THE AIRPLANE SHOWED A DESCENT FROM 8,000 FEET TO 7,400 FEET BEFORE CONTACT WAS LOST. A METEOROLOGICAL STUDY OF THE ACCIDENT AREA REVEALED AREAS OF LIGHT RAIN WITH A FREEZING LEVEL OF 6,300 FEET.
NTSB Probable Cause
AN INADVERTENT ENCOUNTER WITH RAIN AND ICING CONDITIONS. FACTORS IN THIS ACCIDENT INCLUDED ENVIRONMENTAL CONDITIONS CONSISTING OF RAIN, ICING, AND DARKNESS, AND THE PILOT'S OVERCONFIDENCE IN HIS ABILITIES TO DEAL WITH THE ENCOUNTERED WEATHER CONDITIONS.
Full Narrative
AFTER RECEIVING A WEATHER BRIEFING, THE COMMERCIAL/INSTRUMENT RATED PILOT, THE SOLE OCCUPANT, DEPARTED ON A NIGHT CROSS COUNTRY FLIGHT OVER MOUNTAINOUS TERRAIN. THE FORECASTED WEATHER CONDITIONS INCLUDED SCATTERED CLOUDS AT 4,000 TO 6,000 FEET, BROKEN CLOUDS AT 8,000 FEET WITH A FREEZING LEVEL OF 7,000 FEET. NO FLIGHT PLAN WAS FILED. NO FURTHER CONTACT WITH THE AIRPLANE WAS FOUND UNTIL THE WRECKAGE OF THE AIRPLANE WAS LOCATED 7 DAYS AFTER DEPARTURE. WITNESSES IN THE AREA OF THE ACCIDENT REPORTED CONTINUOUS RAIN ON THE NIGHT OF THE ACCIDENT. THE LAST NTAP RADAR DATA OF THE AIRPLANE SHOWED A DESCENT FROM 8,000 FEET TO 7,400 FEET BEFORE CONTACT WAS LOST. A METEOROLOGICAL STUDY OF THE ACCIDENT AREA REVEALED AREAS OF LIGHT RAIN WITH A FREEZING LEVEL OF 6,300 FEET.
Flight
Event TypeAccident
Event Time20:10 PST
Nearest Airport0nm N
Runway0
Flight Plan FiledNone
Aircraft FireGrd
Aircraft ExplosionNo
Aircraft
AircraftCessna 152
Tail NumberN89174
Aircraft CategoryAir
DamageDestroyed
OperatorPalo Alto Flying Club
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · O-235-L2C · Reciprocating · 115
Seats2
People & Injuries
Injury Summary1 injury (1 fatality)
Fatal1
Serious0
Minor0
Uninjured0
Total1
Crew 1Age 63 · Second Class
Conditions
ConditionsIMC
LightDark Night
Wind160° @ 4 kt
Visibility20 sm
CeilingBroken clouds 25000 ft
Temperature / Dew Point57 / 52
Altimeter30.00 inHg
Observation Time03:20
Weather SourceWFAC