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NTSB Report
July 31, 1982 · Mooney M20F · N9707M
Sandy, OR
Overview
Report Status
Preliminary report
Event Type
Accident
Date
July 31, 1982
Injury Outcomes
No injuries (2 uninjured)
Location
Sandy, OR
Aircraft
Mooney M20F
Tail Number
N9707M
Operator
Wright Custom Products
Injuries
None
Aircraft Damage
Substantial
NTSB Number
SEA82DA135
AFTER THE ENGINE WAS OVERHAULED, THE PILOT AND A MECHANIC TOOK OFF ON A TEST FLIGHT. DURING THE TAKEOFF CLIMB THE ENGINE LOST POWER AND WHEN FORCE LANDED ON SOFT TERRAIN, THE NOSE AND RIGHT MAIN LANDING GEAR COLLAPSED. AN EXAMINATION REVEALED THAT THE LEFT WING TANK QUICK DRAIN WAS INOPERABLE (RUSTED SHUT) AND WATER WAS FOUND IN THE FUEL SYSTEM. REPORTEDLY, THE QUICK DRAIN HAD BEEN INOPERATIVE SINCE THE PILOT HAD PURCHASED THE AIRCRAFT, ABOUT TWO YEARS PREVIOUSLY. THE PILOT BELIEVED WATER COULD BE DRAINED FROM THE LEFT TANK BY SELECTING THAT POSITION AND PULLING THE GASCOLATOR HANDLE IN THE COCKPIT. AN AUTHORIZED MOONEY DISTRIBUTOR STATED THAT OVER ONE GALLON OF FLUID WOULD HAVE TO BE DRAINED IN THIS MANNER, TO BE EFFECTIVE.
Full Narrative
AFTER THE ENGINE WAS OVERHAULED, THE PILOT AND A MECHANIC TOOK OFF ON A TEST FLIGHT. DURING THE TAKEOFF CLIMB THE ENGINE LOST POWER AND WHEN FORCE LANDED ON SOFT TERRAIN, THE NOSE AND RIGHT MAIN LANDING GEAR COLLAPSED. AN EXAMINATION REVEALED THAT THE LEFT WING TANK QUICK DRAIN WAS INOPERABLE (RUSTED SHUT) AND WATER WAS FOUND IN THE FUEL SYSTEM. REPORTEDLY, THE QUICK DRAIN HAD BEEN INOPERATIVE SINCE THE PILOT HAD PURCHASED THE AIRCRAFT, ABOUT TWO YEARS PREVIOUSLY. THE PILOT BELIEVED WATER COULD BE DRAINED FROM THE LEFT TANK BY SELECTING THAT POSITION AND PULLING THE GASCOLATOR HANDLE IN THE COCKPIT. AN AUTHORIZED MOONEY DISTRIBUTOR STATED THAT OVER ONE GALLON OF FLUID WOULD HAVE TO BE DRAINED IN THIS MANNER, TO BE EFFECTIVE.
Flight
Event TypeAccident
Event Time11:30 PDT
Nearest AirportCoutry Squire Airpark (0nm N)
Runway7
Runway Length3110 ft
Runway Width32 ft
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftMooney M20F
Tail NumberN9707M
Aircraft CategoryAir
DamageSubstantial
OperatorWright Custom Products
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · IO-360-A1A · Reciprocating · 200
Seats4
People & Injuries
Injury SummaryNo injuries (2 uninjured)
Fatal0
Serious0
Minor0
Uninjured2
Total2
Crew 1Age 54 · Third Class
Conditions
ConditionsVMC
LightDaylight
Wind135° @ 10 kt
Visibility10 sm
CeilingOvercast 4000 ft
Temperature / Dew Point14 C / 0 C
Altimeter0