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NTSB Report
June 22, 1989 · Aerospatiale TB-21 · N28LR
Newhall, CA
Overview
Report Status
Probable Cause
Event Type
Accident
Date
June 22, 1989
Injury Outcomes
4 injuries (4 fatalities)
Location
Newhall, CA
Aircraft
Aerospatiale TB-21
Tail Number
N28LR
Injuries
Fatal
Aircraft Damage
Destroyed
NTSB Number
LAX89FA225
THE PLT RPRTD TO THE TOWER CTLR THAT HE WAS EXPERIENCING ENG PROBLEMS. SHORTLY THEREAFTER, HE RPRTD THAT THE ENG HAD 'QUIT'. AS THE PLT WAS MAKING AN EMERGENCY LNDG, THE AIRPLANE COLLIDED WITH A TRANSMISSION WIRE & CRASHED. AN INVESTIGATION REVEALED CONTAMINANTS IN THE AIRFRAME & ENG FUEL SYSTEMS. RPRTDLY, THE PLT HAD NEVER DRAINED THE FUEL SELECTOR VALVE FILTER, NOR WAS HE TOLD ABT THE DRAIN WHEN HE WAS CHECKED OUT BY THE MFG SALES REP. THE FUEL SYSTEM HAD BEEN CHECKED FOR CONTAMINANTS BY AN FBO BEFORE THE PLT DEPD ON THE ACDNT FLT. THE FUEL SERVO WAS CLEANED & THE REINSTALLING MECH DRAINED ABT 1/2 GAL OF FUEL. HE FOUND NO CONTAMINANTS, BUT HE DID NOT ENDOSCOPE THE TANKS AS RQRD BY THE MAINT MANUAL.
NTSB Probable Cause
FUEL CONTAMINATION, DUE TO THE PILOT'S LACK OF FAMILIARITY WITH THE AIRCRAFT FUEL SYSTEM, AND INADEQUATE MAINTENANCE. A RELATED FACTOR WAS: INADEQUATE TRANSITION TRAINING.
Full Narrative
THE PLT RPRTD TO THE TOWER CTLR THAT HE WAS EXPERIENCING ENG PROBLEMS. SHORTLY THEREAFTER, HE RPRTD THAT THE ENG HAD 'QUIT'. AS THE PLT WAS MAKING AN EMERGENCY LNDG, THE AIRPLANE COLLIDED WITH A TRANSMISSION WIRE & CRASHED. AN INVESTIGATION REVEALED CONTAMINANTS IN THE AIRFRAME & ENG FUEL SYSTEMS. RPRTDLY, THE PLT HAD NEVER DRAINED THE FUEL SELECTOR VALVE FILTER, NOR WAS HE TOLD ABT THE DRAIN WHEN HE WAS CHECKED OUT BY THE MFG SALES REP. THE FUEL SYSTEM HAD BEEN CHECKED FOR CONTAMINANTS BY AN FBO BEFORE THE PLT DEPD ON THE ACDNT FLT. THE FUEL SERVO WAS CLEANED & THE REINSTALLING MECH DRAINED ABT 1/2 GAL OF FUEL. HE FOUND NO CONTAMINANTS, BUT HE DID NOT ENDOSCOPE THE TANKS AS RQRD BY THE MAINT MANUAL.
Flight
Event TypeAccident
Event Time14:11 PDT
Nearest AirportVANNUYS (0nm N)
Runway0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftAerospatiale TB-21
Tail NumberN28LR
Aircraft CategoryAir
DamageDestroyed
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · TIO-540-AB1AD · Reciprocating · 250
Seats4
People & Injuries
Injury Summary4 injuries (4 fatalities)
Fatal4
Serious0
Minor0
Uninjured0
Total4
Crew 1Age 66 · Third Class
Conditions
ConditionsVMC
LightDaylight
Wind140° @ 10 kt
Visibility6 sm
CeilingNone
Temperature / Dew Point55
Altimeter29.00 inHg
Observation Time21:07
Weather SourceWFAC