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NTSB Report
May 28, 1990 · Cessna T303 · N4973V
Deland, FL
Overview
Report Status
Probable Cause
Event Type
Accident
Date
May 28, 1990
Injury Outcomes
2 injuries (2 minor injuries)
Location
Deland, FL
Aircraft
Cessna T303
Tail Number
N4973V
Injuries
Minor
Aircraft Damage
Destroyed
NTSB Number
MIA90FA135
DURING AN NDB APCH IN INSTRUMENT CONDS WITH THE LANDING GEAR EXTENDED, THE FIRE WARNING LIGHT FOR THE RGT ENG ILLUMINATED. THE RGT ENG WAS SHUT DOWN & A MISSED APCH WAS INITIATED; HOWEVER, THE LANDING GEAR WOULD NOT RETRACT & THE ACFT WOULD NOT MAINTAIN ALT. AS IT DSCNDD INTO THE TOP OF AN OVERCAST AT AN ALT OF ABOUT 600', THE PLTS TRIED TO RESTART THE ENG, BUT TO NO AVAIL. SUBSEQUENTLY, THE ACFT DSCNDD BELOW THE CLOUDS AT AN ALT OF ABOUT 150' TO 170'. AS THE INSTRUCTOR (CFI) LANDED THE ACFT IN AN OPEN FIELD, THE NOSE GEAR ENCOUNTERED SOFT DIRT & THE ACFT NOSED OVER. AN EXAM REVEALED THAT AN ELECTRICAL POWER JUMPER WIRE BETWEEN 2 BUS BARS HAD BECOME CHAFED & SHORTED. THE LEFT & RGT ISOLATION CIRCUIT BREAKERS & THE BUSS TIE CIRCUIT BREAKER WERE FOUND IN THE TRIPPED (OPEN) POSITION. THIS RESULTED IN A FALSE FIRE WARNING LIGHT & PREVENTED THE LANDING GEAR FROM BEING RETRACTED.
NTSB Probable Cause
THE CHAFED AND SHORTED ELECTRICAL WIRING BETWEEN BUS BARS, WHICH CAUSED A PARTIAL ELECTRICAL FAILURE, RESULTED IN A FALSE FIRE WARNING INDICATION, AND PREVENTED THE RESTART OF THE RIGHT ENGINE.
Full Narrative
DURING AN NDB APCH IN INSTRUMENT CONDS WITH THE LANDING GEAR EXTENDED, THE FIRE WARNING LIGHT FOR THE RGT ENG ILLUMINATED. THE RGT ENG WAS SHUT DOWN & A MISSED APCH WAS INITIATED; HOWEVER, THE LANDING GEAR WOULD NOT RETRACT & THE ACFT WOULD NOT MAINTAIN ALT. AS IT DSCNDD INTO THE TOP OF AN OVERCAST AT AN ALT OF ABOUT 600', THE PLTS TRIED TO RESTART THE ENG, BUT TO NO AVAIL. SUBSEQUENTLY, THE ACFT DSCNDD BELOW THE CLOUDS AT AN ALT OF ABOUT 150' TO 170'. AS THE INSTRUCTOR (CFI) LANDED THE ACFT IN AN OPEN FIELD, THE NOSE GEAR ENCOUNTERED SOFT DIRT & THE ACFT NOSED OVER. AN EXAM REVEALED THAT AN ELECTRICAL POWER JUMPER WIRE BETWEEN 2 BUS BARS HAD BECOME CHAFED & SHORTED. THE LEFT & RGT ISOLATION CIRCUIT BREAKERS & THE BUSS TIE CIRCUIT BREAKER WERE FOUND IN THE TRIPPED (OPEN) POSITION. THIS RESULTED IN A FALSE FIRE WARNING LIGHT & PREVENTED THE LANDING GEAR FROM BEING RETRACTED.
Flight
Event TypeAccident
Event Time08:03 EDT
Nearest AirportDeland Muni (0nm N)
Runway30
Runway Length6003 ft
Runway Width100 ft
Flight Plan FiledIFR
Aircraft FireGrd
Aircraft ExplosionNo
Aircraft
AircraftCessna T303
Tail NumberN4973V
Aircraft CategoryAir
DamageDestroyed
Operating RulePart 91
Engines2
Engine TypeReciprocating
Engine DetailsContinental · LTSIO-520-AE · Reciprocating · 250
Seats6
People & Injuries
Injury Summary2 injuries (2 minor injuries)
Fatal0
Serious0
Minor2
Uninjured0
Total2
Crew 1Age 23 · Second Class
Conditions
ConditionsIMC
LightDaylight
Wind150° @ 6 kt
Visibility1 sm
CeilingOvercast 150 ft
Altimeter29.00 inHg
Observation Time12:31
Weather SourceWFAC