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NTSB Report
February 5, 1992 · Grumman G-164A · N8507H
Greenfield, CA
Overview
Report Status
Probable Cause
Event Type
Accident
Date
February 5, 1992
Injury Outcomes
No injuries (1 uninjured)
Location
Greenfield, CA
Aircraft
Grumman G-164A
Tail Number
N8507H
Operator
Brad Christian Films
Injuries
None
Aircraft Damage
Destroyed
NTSB Number
LAX92LA110
THE PILOT, WHO HAD LOGGED 20,000 FLIGHT HOURS, WAS WORKING FOR A FILM CREW TO LOCATE PICTURESQUE AREAS FOR FILMING. DURING THE ACCIDENT FLIGHT THE PILOT, WHO WAS FAMILIAR WITH THE AREA, FLEW AT AN INTENTIONALLY LOW ALTITUDE IN MOUNTAINOUS TERRAIN. ACCORDING TO THE PILOT, WHILE CRUISING HE EXPERIENCED CHANGES IN THE AMBIENT LIGHTING CONDITIONS AND HILLSIDE SHADOWS, AND HE FAILED TO NEGOTIATE A CRITICAL TURN. HE INADVERTENTLY TURNED INTO A BOX-LIKE CANYON, FOR WHICH 'THERE WAS NO ESCAPE,' AND COLLIDED WITH UPSLOPING TERRAIN.
NTSB Probable Cause
THE PILOT'S FAILURE TO MAINTAIN ADEQUATE ALTITUDE DURING AN INTENTIONALLY PERFORMED LOW ALTITUDE FLIGHT IN MOUNTAINOUS TERRAIN. CONTRIBUTING FACTORS RELATED TO THE PILOT'S VISUAL PERCEPTION OF THE CANYON AREA BECAUSE OF CHANGES IN THE AMBIENT LIGHTING CONDITIONS AND SHADOWS.
Full Narrative
THE PILOT, WHO HAD LOGGED 20,000 FLIGHT HOURS, WAS WORKING FOR A FILM CREW TO LOCATE PICTURESQUE AREAS FOR FILMING. DURING THE ACCIDENT FLIGHT THE PILOT, WHO WAS FAMILIAR WITH THE AREA, FLEW AT AN INTENTIONALLY LOW ALTITUDE IN MOUNTAINOUS TERRAIN. ACCORDING TO THE PILOT, WHILE CRUISING HE EXPERIENCED CHANGES IN THE AMBIENT LIGHTING CONDITIONS AND HILLSIDE SHADOWS, AND HE FAILED TO NEGOTIATE A CRITICAL TURN. HE INADVERTENTLY TURNED INTO A BOX-LIKE CANYON, FOR WHICH 'THERE WAS NO ESCAPE,' AND COLLIDED WITH UPSLOPING TERRAIN.
Flight
Event TypeAccident
Event Time16:10 PST
Nearest Airport0nm N
Runway0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftGrumman G-164A
Tail NumberN8507H
Aircraft CategoryAir
DamageDestroyed
OperatorBrad Christian Films
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsP&W · R-1340-AN1 · Reciprocating · 600
Seats1
People & Injuries
Injury SummaryNo injuries (1 uninjured)
Fatal0
Serious0
Minor0
Uninjured1
Total1
Crew 1Age 52 · Second Class
Conditions
ConditionsVMC
LightDaylight
WindCalm
Visibility50 sm
CeilingNone
Temperature / Dew Point70 F / 0 C
Altimeter0
Weather SourcePILO