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NTSB Report
December 8, 1991 · Piper PA-34-200T · N36506
Pine Valley, CA
Overview
Report Status
Probable Cause
Event Type
Accident
Date
December 8, 1991
Injury Outcomes
2 injuries (1 fatality, 1 minor injury)
Location
Pine Valley, CA
Aircraft
Piper PA-34-200T
Tail Number
N36506
Operator
Neil S Brown
Injuries
Fatal
Aircraft Damage
Destroyed
NTSB Number
LAX92LA057
ACCORDING TO THE COMMERCIAL PILOT, DURING THE INITIAL PORTION OF HIS DAYTIME CROSS COUNTRY FLIGHT HE PLANNED TO FLY BENEATH THE BASE OF THE TERMINAL CONTROL AREA (TCA). AFTER CLEARING THE TCA'S LATERAL BOUNDARY, THE PILOT ENCOUNTERED TURBULENCE AND INITIATED A CLIMB FROM HIS 4700 FOOT CRUISE ALTITUDE TO 7500 FEET MSL. UPON REACHING 5300 FEET MSL, A STRONG DOWNDRAFT WAS ENCOUNTERED. THE AIRPLANE LOST ALTITUDE AND COLLIDED WITH A 4800 FOOT MSL HILL.
NTSB Probable Cause
THE PILOT'S FAILURE TO MONITOR THE PROPER ALTITUDE OVER OBSERABLE RISING TERRAIN. A CONTRIBUTING FACTOR WAS THE PILOT'S ENCOUNTER WITH A STRONG DOWNDRAFT.
Full Narrative
ACCORDING TO THE COMMERCIAL PILOT, DURING THE INITIAL PORTION OF HIS DAYTIME CROSS COUNTRY FLIGHT HE PLANNED TO FLY BENEATH THE BASE OF THE TERMINAL CONTROL AREA (TCA). AFTER CLEARING THE TCA'S LATERAL BOUNDARY, THE PILOT ENCOUNTERED TURBULENCE AND INITIATED A CLIMB FROM HIS 4700 FOOT CRUISE ALTITUDE TO 7500 FEET MSL. UPON REACHING 5300 FEET MSL, A STRONG DOWNDRAFT WAS ENCOUNTERED. THE AIRPLANE LOST ALTITUDE AND COLLIDED WITH A 4800 FOOT MSL HILL.
Flight
Event TypeAccident
Event Time11:00 PST
Nearest Airport0nm N
Runway0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftPiper PA-34-200T
Tail NumberN36506
Aircraft CategoryAir
DamageDestroyed
OperatorNeil S Brown
Operating RulePart 91
Engines2
Engine TypeReciprocating
Engine DetailsContinental · LTSI0-360-EB1 · Reciprocating · 200
Seats6
People & Injuries
Injury Summary2 injuries (1 fatality, 1 minor injury)
Fatal1
Serious0
Minor1
Uninjured0
Total2
Crew 1Age 58 · Third Class
Conditions
ConditionsVMC
LightDaylight
WindCalm
Visibility15 sm
CeilingBroken clouds 1000 ft
Temperature / Dew Point0 C / 0 C
Altimeter0
Weather SourcePILO