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NTSB Report
June 11, 1985 · Aero Commander 1121 · N69GT
Van Nuys, CA
Overview
Report Status
Preliminary report
Event Type
Accident
Date
June 11, 1985
Injury Outcomes
2 injuries (2 minor injuries), 1 uninjured, 2 unknown outcomes
Location
Van Nuys, CA
Aircraft
Aero Commander 1121
Tail Number
N69GT
Operator
James E Mayfield
Injuries
Minor
Aircraft Damage
Substantial
NTSB Number
LAX85FA269
THE PLT, EXECUTING AND ILS APCH, OBSERVED A PRIMARY HYDRAULIC PRESSURE DROP AND DECLARED HIS INTENT TO LAND WITHOUT THE USE OF FLAPS, SPEED BRAKES, REVERSERS OR NOSE WHEEL STEERING. THE ACFT RAN OFF THE END OF THE RWY DURING LANDING, TRAVELED APRX 1300 FT AND CAME TO REST ON A GOLF COURSE AFTER STRIKING 2 VEHICLES AND A CHAIN LINK FENCE. POST ACCIDENT INVESTIGATION REVEALED .8 QUARTS OF HYDRAULIC FLUID (SKYDROL) IN THE RESERVOIR. RESERVOIR CAPACITY IS 1.28 U.S. GALLONS. THE PLT STATED HE PUMPED THE BRAKES ON APCH TO BUILD PRESSURE IN THE EMERGENCY BRAKE SYSTEM. THE PLT ANNOUNCED HE HAD NO BRAKED AFTER TOUCHDOWN. THE JET COMMANDER 1121 OPERATOR'S MANUAL CAUTIONS AGAINST THIS PRACTICE. A FUNCTIONAL CHECK OF THE THRUST REVERSERS BY ON-SCENE INVESTIGATORS PRODUCED 2 COMPLETE CYCLES OF OPERATION. TWO PERSONS LOCATED IN A GROUND VEHICLE WERE INJURED DURING THE OVERRUN LANDING.
Full Narrative
THE PLT, EXECUTING AND ILS APCH, OBSERVED A PRIMARY HYDRAULIC PRESSURE DROP AND DECLARED HIS INTENT TO LAND WITHOUT THE USE OF FLAPS, SPEED BRAKES, REVERSERS OR NOSE WHEEL STEERING. THE ACFT RAN OFF THE END OF THE RWY DURING LANDING, TRAVELED APRX 1300 FT AND CAME TO REST ON A GOLF COURSE AFTER STRIKING 2 VEHICLES AND A CHAIN LINK FENCE. POST ACCIDENT INVESTIGATION REVEALED .8 QUARTS OF HYDRAULIC FLUID (SKYDROL) IN THE RESERVOIR. RESERVOIR CAPACITY IS 1.28 U.S. GALLONS. THE PLT STATED HE PUMPED THE BRAKES ON APCH TO BUILD PRESSURE IN THE EMERGENCY BRAKE SYSTEM. THE PLT ANNOUNCED HE HAD NO BRAKED AFTER TOUCHDOWN. THE JET COMMANDER 1121 OPERATOR'S MANUAL CAUTIONS AGAINST THIS PRACTICE. A FUNCTIONAL CHECK OF THE THRUST REVERSERS BY ON-SCENE INVESTIGATORS PRODUCED 2 COMPLETE CYCLES OF OPERATION. TWO PERSONS LOCATED IN A GROUND VEHICLE WERE INJURED DURING THE OVERRUN LANDING.
Flight
Event TypeAccident
Event Time07:31 PDT
Nearest AirportVANNUYS (0nm N)
Runway16R
Runway Length8000 ft
Runway Width150 ft
Flight Plan FiledIFR
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftAero Commander 1121
Tail NumberN69GT
Aircraft CategoryAir
DamageSubstantial
OperatorJames E Mayfield
Operating RulePart 91
Engines2
Engine TypeTurbojet
Engine DetailsGe · CJ-610-1 · Turbojet · 2850
Seats10
People & Injuries
Injury Summary2 injuries (2 minor injuries), 1 uninjured, 2 unknown outcomes
Fatal0
Serious0
Minor2
Uninjured1
Total5
Crew 1Age 35 · First Class
Conditions
ConditionsIMC
LightDaylight
WindCalm
Visibility2 sm
CeilingBroken clouds 800 ft
Temperature / Dew Point59 / 57
Altimeter29.00 inHg
Observation Time15:31
Weather SourceWFAC