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NTSB Report
October 19, 1989 · Cessna T337G · N197
Pittsburgh, PA
Overview
Report Status
Probable Cause
Event Type
Accident
Date
October 19, 1989
Injury Outcomes
1 injury (1 serious injury)
Location
Pittsburgh, PA
Aircraft
Cessna T337G
Tail Number
N197
Operator
Robert a Harder
Injuries
Serious
Aircraft Damage
Destroyed
NTSB Number
NYC90LA014
THE PILOT DIVERTED TO ALLEGHENY COUNTY AIRPORT TO AVOID WEATHER AND TO REFUEL. DURING A VECTOR TO FINAL APPROACH, THE LANDING GEAR WOULD NOT EXTEND. FOR ABOUT 1 HR AND 10 MIN, THE PILOT TRIED TO EXTEND THE LANDING GEAR. HE DECIDED TO MAKE A GEAR UP LANDING; HOWEVER. BEFORE REACHING THE AIRPORT, FUEL TO BOTH ENGINES WAS EXHAUSTED. THE AIRPLANE CRASHED INTO TREES SHORT OF THE RUNWAY. AN INVESTIGATION SHOWED THERE WAS A HYDRAULIC LEAK ON THE NOSE GEAR DOOR ACTUATOR AND A SUBSEQUENT LOSS OF HYDRAULIC FLUID. AFTER THE LEAK WAS REPAIRED AND THE SYSTEM WAS FILLED WITH HYDRAULIC FLUID, THE LANDING GEAR OPERATED WITH USE OF THE POWER PACK OR HAND PUMP.
NTSB Probable Cause
THE PILOT'S IMPROPER IN-FLIGHT PLANNING AND DECISION, AND DIVERTING OF HIS ATTENTION, WHICH RESULTED IN FUEL EXHAUSTION TO BOTH ENGINES. DARKNESS AND TREES IN THE EMERGENCY LANDING AREA WERE RELATED FACTORS.
Full Narrative
THE PILOT DIVERTED TO ALLEGHENY COUNTY AIRPORT TO AVOID WEATHER AND TO REFUEL. DURING A VECTOR TO FINAL APPROACH, THE LANDING GEAR WOULD NOT EXTEND. FOR ABOUT 1 HR AND 10 MIN, THE PILOT TRIED TO EXTEND THE LANDING GEAR. HE DECIDED TO MAKE A GEAR UP LANDING; HOWEVER. BEFORE REACHING THE AIRPORT, FUEL TO BOTH ENGINES WAS EXHAUSTED. THE AIRPLANE CRASHED INTO TREES SHORT OF THE RUNWAY. AN INVESTIGATION SHOWED THERE WAS A HYDRAULIC LEAK ON THE NOSE GEAR DOOR ACTUATOR AND A SUBSEQUENT LOSS OF HYDRAULIC FLUID. AFTER THE LEAK WAS REPAIRED AND THE SYSTEM WAS FILLED WITH HYDRAULIC FLUID, THE LANDING GEAR OPERATED WITH USE OF THE POWER PACK OR HAND PUMP.
Flight
Event TypeAccident
Event Time22:36 EDT
Nearest AirportAllegheny Co (0nm N)
Runway0
Flight Plan FiledIFR
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftCessna T337G
Tail NumberN197
Aircraft CategoryAir
DamageDestroyed
OperatorRobert a Harder
Operating RulePart 91
Engines2
Engine TypeReciprocating
Engine DetailsContinental · TSIO 360-CB-5 · Reciprocating · 225
Seats5
People & Injuries
Injury Summary1 injury (1 serious injury)
Fatal0
Serious1
Minor0
Uninjured0
Total1
Crew 1Age 67 · Third Class
Conditions
ConditionsVMC
LightDark Night
Wind90° @ 5 kt
Visibility3 sm
CeilingOvercast 1000 ft
Temperature / Dew Point0 C / 0 C
Altimeter0
Weather SourcePILO