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NTSB Report
November 8, 1990 · Cessna 402B · N1683T
Pocatello, ID
Overview
Report Status
Probable Cause
Event Type
Accident
Date
November 8, 1990
Injury Outcomes
No injuries (2 uninjured)
Location
Pocatello, ID
Aircraft
Cessna 402B
Tail Number
N1683T
Operator
Regional Express
Injuries
None
Aircraft Damage
Substantial
NTSB Number
SEA91LA014
DURING A CARGO FLIGHT, THE AIRPLANE ENCOUNTERED STRONG HEAD WINDS AND ICING CONDITIONS. THE PILOT STATED THAT HE HAD TO APPLY ADDITIONAL POWER IN ORDER TO MAINTAIN ALTITUDE. DURING THE DESCENT TO THE AIRPORT, THE PILOT NOTIFIED ATC THAT HE WAS DECLARING AN EMERGENCY AND REPORTED MINIMUM FUEL. SHORTLY THERE AFTER, THE ENGINES QUIT. THE PILOT INITIATED A FORCED LANDING IN A FIELD WHERE DURING THE LANDING ROLL, THE LEFT MAIN GEAR COLAPSED. POST CRASH INSPECTION OF THE AIRPLANE REVEALED THAT THE FUEL TANKS WERE NEAR EXHAUSTED OF FUEL.
NTSB Probable Cause
THE LOSS OF ENGINE POWER DUE TO A BURNED PISTON RESULTING FROM ARCING AND PARTIAL FAILURE OF THE LEFT MAGNETO BECAUSE OF IMPROPER OVERHAUL, THE CONTAMINATION OF THE RIGHT MAGNETO AND IMPROPER ADJUSTMENT OF THE FUEL SYSTEM AT THE LAST MAJOR ENGINE OVERHAUL; POOR INFLIGHT PLANNING BY THE PILOT INS SELECTING THE WRONG RUNWAY; AND THE PREMATURE EXTENSION OF THE FLAPS AND LADNING GEAR CAUSING THE AIRCRAFT TO UNDERSHOOT THE RUNWAY.
Full Narrative
DURING A CARGO FLIGHT, THE AIRPLANE ENCOUNTERED STRONG HEAD WINDS AND ICING CONDITIONS. THE PILOT STATED THAT HE HAD TO APPLY ADDITIONAL POWER IN ORDER TO MAINTAIN ALTITUDE. DURING THE DESCENT TO THE AIRPORT, THE PILOT NOTIFIED ATC THAT HE WAS DECLARING AN EMERGENCY AND REPORTED MINIMUM FUEL. SHORTLY THERE AFTER, THE ENGINES QUIT. THE PILOT INITIATED A FORCED LANDING IN A FIELD WHERE DURING THE LANDING ROLL, THE LEFT MAIN GEAR COLAPSED. POST CRASH INSPECTION OF THE AIRPLANE REVEALED THAT THE FUEL TANKS WERE NEAR EXHAUSTED OF FUEL.
Flight
Event TypeAccident
Event Time08:30 MST
Nearest Airport0nm N
Runway0
Runway Length0
Runway Width0
Flight Plan FiledIFR
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftCessna 402B
Tail NumberN1683T
Aircraft CategoryAir
DamageSubstantial
OperatorRegional Express
Operating RulePart 135
Engines2
Engine TypeReciprocating
Engine DetailsContinental · TSIO-520-EB · Reciprocating · 300
Seats2
People & Injuries
Injury SummaryNo injuries (2 uninjured)
Fatal0
Serious0
Minor0
Uninjured2
Total2
Crew 1Age 59 · Second Class
Conditions
ConditionsVMC
LightDaylight
Wind250° @ 6 kt
Visibility12 sm
CeilingOvercast 700 ft
Temperature / Dew Point0 C / 0 C
Altimeter0
Observation Time15:50
Weather SourceWFAC