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NTSB Report
July 6, 1987 · Grumman G-21A · N322
Big Spring, TX
Overview
Report Status
Preliminary report
Event Type
Accident
Date
July 6, 1987
Injury Outcomes
1 injury (1 minor injury)
Location
Big Spring, TX
Aircraft
Grumman G-21A
Tail Number
N322
Operator
Wilson C Edwards
Injuries
Minor
Aircraft Damage
Substantial
NTSB Number
FTW87LA162
DURING FLT, THE PLT NOTED THAT THE LEFT FUEL TANK WAS ALMOST EMPTY AND THE RIGHT TANK HAD GAINED FUEL. HE IMMEDIATELY SWITCHED FROM THE BOTH POSITION TO THE RIGHT TANK AND STARTED TO WORK THE WOBBLE PUMP. THE FUEL CONTINUED TO DROP IN THE LEFT TANK AND THE ACFT LOST PWR IN BOTH ENGINES. THE ACFT NOSED OVER DURING THE FORCED LANDING THAT FOLLOWED. EXAM OF THE ACFT REVEALED THAT THE FUEL VENT TO THE RIGHT TANK WAS BLOCKED. IN ADDITION, THE PLT STATED THAT THE ACCIDENT COULD HAVE BEEN PREVENTED BY NOT RUNNING ON BOTH TANKS, PARTICULARLY WITH PARTIAL LOADS OF FUEL.
Full Narrative
DURING FLT, THE PLT NOTED THAT THE LEFT FUEL TANK WAS ALMOST EMPTY AND THE RIGHT TANK HAD GAINED FUEL. HE IMMEDIATELY SWITCHED FROM THE BOTH POSITION TO THE RIGHT TANK AND STARTED TO WORK THE WOBBLE PUMP. THE FUEL CONTINUED TO DROP IN THE LEFT TANK AND THE ACFT LOST PWR IN BOTH ENGINES. THE ACFT NOSED OVER DURING THE FORCED LANDING THAT FOLLOWED. EXAM OF THE ACFT REVEALED THAT THE FUEL VENT TO THE RIGHT TANK WAS BLOCKED. IN ADDITION, THE PLT STATED THAT THE ACCIDENT COULD HAVE BEEN PREVENTED BY NOT RUNNING ON BOTH TANKS, PARTICULARLY WITH PARTIAL LOADS OF FUEL.
Flight
Event TypeAccident
Event Time14:20 CDT
Nearest AirportEdwards Lucian Wells (0nm N)
Runway0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftGrumman G-21A
Tail NumberN322
Aircraft CategoryAir
DamageSubstantial
OperatorWilson C Edwards
Operating RulePart 91
Engines2
Engine TypeReciprocating
Engine DetailsP&W · R-985 · Reciprocating · 450
Seats8
People & Injuries
Injury Summary1 injury (1 minor injury)
Fatal0
Serious0
Minor1
Uninjured0
Total1
Crew 1Age 53 · First Class
Conditions
ConditionsVMC
LightDaylight
Wind270° @ 15 kt
Visibility20 sm
CeilingNone
Temperature / Dew Point0 C / 0 C
Altimeter0
Weather SourcePILO