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NTSB Report
November 18, 1989 · Beech 58 · N6659D
Fernandina Bch, FL
Overview
Report Status
Probable Cause
Event Type
Accident
Date
November 18, 1989
Injury Outcomes
No injuries (1 uninjured)
Location
Fernandina Bch, FL
Aircraft
Beech 58
Tail Number
N6659D
Operator
Crider William A
Injuries
None
Aircraft Damage
Substantial
NTSB Number
MIA90LA029
DURING FLT, THE PLT NOTED THAT OIL PRESSURE IN THE RGT ENG HAD DROPPED TO THE RED LINE, SO HE SHUT DOWN & FEATHERED THE ENG. HE STATED THAT AFTER ENTERING TRAFFIC TO LND, HE 'LOWERED' THE GEAR, THEN NOTED THAT THE RADAR & RADIOS BECAME INOP (AS ELECTRICAL POWER WAS LOST). THOUGH HE HEARD & FELT THE GEAR EXTEND, HE DID NOT SEE ILLUMINATION OF THE DOWNLOCK LIGHTS. THE PLT MADE A 360 DEG TURN TO GET SPACING BEHIND ANOTHER ACFT, THEN CONTD THE APCH TO LAND. DURING THE LANDING, THE GEAR COLLAPSED & THE ACFT WAS DAMAGED. AN EXAM OF THE RGT ENG REVEALED THAT THE LOW OIL PRESSURE WAS DUE TO A PIECE OF CARBON UNDER THE OIL PRESSURE RELIEF VALVE SEAT. BOTH ALTERNATORS TESTED SATISFACTORILY; HOWEVER, BOTH VOLTAGE REGULATORS HAD FAILED INTERNALLY & BOTH ALTERNATOR CIRCUIT BREAKERS WERE POPPED.
NTSB Probable Cause
FAILURE OF THE PILOT TO PERFORM THE EMERGENCY GEAR EXTENSION PROCEDURE TO ASSURE THAT THE GEAR WAS DOWN AND LOCKED. FACTORS RELATED TO THE ACCIDENT WERE: LOW OIL PRESSURE IN THE RIGHT ENG, FAILURE OF BOTH VOLTAGE REGULATORS, AND THE LOW LEVEL OF CHARGE IN THE BATTERY.
Full Narrative
DURING FLT, THE PLT NOTED THAT OIL PRESSURE IN THE RGT ENG HAD DROPPED TO THE RED LINE, SO HE SHUT DOWN & FEATHERED THE ENG. HE STATED THAT AFTER ENTERING TRAFFIC TO LND, HE 'LOWERED' THE GEAR, THEN NOTED THAT THE RADAR & RADIOS BECAME INOP (AS ELECTRICAL POWER WAS LOST). THOUGH HE HEARD & FELT THE GEAR EXTEND, HE DID NOT SEE ILLUMINATION OF THE DOWNLOCK LIGHTS. THE PLT MADE A 360 DEG TURN TO GET SPACING BEHIND ANOTHER ACFT, THEN CONTD THE APCH TO LAND. DURING THE LANDING, THE GEAR COLLAPSED & THE ACFT WAS DAMAGED. AN EXAM OF THE RGT ENG REVEALED THAT THE LOW OIL PRESSURE WAS DUE TO A PIECE OF CARBON UNDER THE OIL PRESSURE RELIEF VALVE SEAT. BOTH ALTERNATORS TESTED SATISFACTORILY; HOWEVER, BOTH VOLTAGE REGULATORS HAD FAILED INTERNALLY & BOTH ALTERNATOR CIRCUIT BREAKERS WERE POPPED.
Flight
Event TypeAccident
Event Time11:45 EST
Nearest AirportFernandina Beach Muni (0nm N)
Runway4
Runway Length5350 ft
Runway Width100 ft
Flight Plan FiledIFR
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftBeech 58
Tail NumberN6659D
Aircraft CategoryAir
DamageSubstantial
OperatorCrider William A
Operating RulePart 91
Engines2
Engine TypeReciprocating
Engine DetailsContinental · IO-520 · Reciprocating · 285
Seats6
People & Injuries
Injury SummaryNo injuries (1 uninjured)
Fatal0
Serious0
Minor0
Uninjured1
Total1
Crew 1Age 50 · Third Class
Conditions
ConditionsVMC
LightDaylight
Wind350° @ 5 kt
Visibility7 sm
CeilingBroken clouds 25000 ft
Temperature / Dew Point54 / 30 C
Altimeter30.00 inHg
Observation Time16:53
Weather SourceWFAC