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NTSB Report
July 23, 1991 · Beech 95-C55 · N77CQ
Granada Hills, CA
Overview
Report Status
Probable Cause
Event Type
Accident
Date
July 23, 1991
Injury Outcomes
3 injuries (3 fatalities)
Location
Granada Hills, CA
Aircraft
Beech 95-C55
Tail Number
N77CQ
Operator
Bargman Stuart
Injuries
Fatal
Aircraft Damage
Destroyed
NTSB Number
LAX91FA324
DURING A VISUAL APPROACH TO THE AIRPORT, THE TOWER CONTROLLER NOTICED THAT THE AIRPLANE WAS HIGH, AND INSTRUCTED THE PILOT TO GO AROUND AND ENTER A RIGHT DOWNWIND. REPEATED INSTRUCTIONS TO TURN TO DOWNWIND BROUGHT NO RESPONSE UNTIL A TURN WAS FINALLY INITIATED. AT THAT TIME THE PILOT DECLARED AN EMERGENCY, REPORTING THAT HE WAS HOLDING FULL BACK ELEVATOR, TRYING TO KEEP THE AIRPLANE IN THE AIR, AND THAT IT LOOKED LIKE HIS ELEVATORS WERE STUCK. THE AIRPLANE CONTINUED AWAY FROM THE AIRPORT AND ENTERED A NEAR VERTICAL HIGH SPEED DESCENT INTO A STORAGE BUILDING. INVESTIGATION REVEALED BOTH ELEVATOR TRIM ACTUATORS AT A 4 DEG NOSE DOWN TRIM POSITION, AND EVIDENCE INDICATES A 40 DEG DOWN ELEVATOR POSITION. NO MALFUNCTION OF THE ENGINES OR FLIGHT CONTROLS WERE FOUND. THE AUTOPILOT SYSTEM CONTROL MODULE WAS DESTROYED. THE PILOT HAD RECEIVED 7 HOURS OF TRAINING IN THE AIRPLANE, AND HAD 20 HOURS TOTAL TIME IN THE AIRPLANE.
NTSB Probable Cause
A LOSS OF DIRECTIONAL CONTROL FOLLOWING AN UNDETERMINED AUTOPILOT FAILURE, DURING WHICH THE PILOT FAILED TO PERFORM THE EMERGENCY PROCEDURE TO CORRECT A MIS-TRIM CONDITION. CONTRIBUTING TO THE ACCIDENT WAS A PERCEIVED ELEVATOR CONTROL PROBLEM; THE INABILITY OF THE PILOT TO OVERPOWER THE MIS-TRIM CONDITION; AND A LACK OF UNDERSTANDING AND TRAINING IN AUTOPILOT SYSTEMS AND FAILURES.
Full Narrative
DURING A VISUAL APPROACH TO THE AIRPORT, THE TOWER CONTROLLER NOTICED THAT THE AIRPLANE WAS HIGH, AND INSTRUCTED THE PILOT TO GO AROUND AND ENTER A RIGHT DOWNWIND. REPEATED INSTRUCTIONS TO TURN TO DOWNWIND BROUGHT NO RESPONSE UNTIL A TURN WAS FINALLY INITIATED. AT THAT TIME THE PILOT DECLARED AN EMERGENCY, REPORTING THAT HE WAS HOLDING FULL BACK ELEVATOR, TRYING TO KEEP THE AIRPLANE IN THE AIR, AND THAT IT LOOKED LIKE HIS ELEVATORS WERE STUCK. THE AIRPLANE CONTINUED AWAY FROM THE AIRPORT AND ENTERED A NEAR VERTICAL HIGH SPEED DESCENT INTO A STORAGE BUILDING. INVESTIGATION REVEALED BOTH ELEVATOR TRIM ACTUATORS AT A 4 DEG NOSE DOWN TRIM POSITION, AND EVIDENCE INDICATES A 40 DEG DOWN ELEVATOR POSITION. NO MALFUNCTION OF THE ENGINES OR FLIGHT CONTROLS WERE FOUND. THE AUTOPILOT SYSTEM CONTROL MODULE WAS DESTROYED. THE PILOT HAD RECEIVED 7 HOURS OF TRAINING IN THE AIRPLANE, AND HAD 20 HOURS TOTAL TIME IN THE AIRPLANE.
Flight
Event TypeAccident
Event Time17:00 PDT
Nearest AirportVANNUYS (4nm NNW)
Runway16R
Runway Length8001 ft
Runway Width150 ft
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftBeech 95-C55
Tail NumberN77CQ
Aircraft CategoryAir
DamageDestroyed
OperatorBargman Stuart
Operating RulePart 91
Engines2
Engine TypeReciprocating
Engine DetailsContinental · IO-520-C · Reciprocating · 285
Seats6
People & Injuries
Injury Summary3 injuries (3 fatalities)
Fatal3
Serious0
Minor0
Uninjured0
Total3
Crew 1Age 50 · Third Class
Conditions
ConditionsVMC
LightDaylight
Wind130° @ 8 kt
Visibility10 sm
CeilingNone
Temperature / Dew Point61 F
Altimeter29.00 inHg
Observation Time00:05
Weather SourceWFAC