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NTSB Report
October 8, 1982 · Beech 58 · N958MC
Allendale, SC
Overview
Report Status
Preliminary report
Event Type
Accident
Date
October 8, 1982
Injury Outcomes
No injuries (2 uninjured)
Location
Allendale, SC
Aircraft
Beech 58
Tail Number
N958MC
Operator
Grand Strand Aviation
Injuries
None
Aircraft Damage
Substantial
NTSB Number
ATL83FA009
ABOUT 30 MIN AFTER DEPARTURE, ELECTRICAL EQUIPMENT BEGAN TO FAIL. THE PLT TURNED OFF THE ALTERNATOR & RESET WITH NO CHANGE. HE THEN SWITCHED TO THE #1 REGULATOR WHICH DID NOT CORRECT THE PROBLEM. WHILE TURNING ON DOWNWIND THE GEAR HANDLE WAS PLACED DOWN & ALL ELECT POWER WAS LOST. THE PLT THEN CRANKED THE GEAR DOWN UNTIL RESISTANCE WAS MET, BUT DID NOT COUNT THE NUMBER OF REVOLUTIONS. THE ACFT TOUCHED DOWN WITH PARTIALLY EXTENDED LANDING GEAR. BOTH BATTERIES WERE FOUND DRY. THE LEFT ALTERNATOR HAD NO OUTPUT & RIGHT ALTERNATOR CURRENT LIMITER WAS BURNED OPEN. THE PLT INDICATED DURING A SUBSEQUENT INTERVIEW THAT HE DID NOT TURN OFF ANY ELECTRICAL EQUIPMENT. HE ALSO STATED THAT HE HAD NOT EXERCISED THE EMERG LANDING GEAR SYSTEM IN FLIGHT PRIOR TO THIS MISHAP.
Full Narrative
ABOUT 30 MIN AFTER DEPARTURE, ELECTRICAL EQUIPMENT BEGAN TO FAIL. THE PLT TURNED OFF THE ALTERNATOR & RESET WITH NO CHANGE. HE THEN SWITCHED TO THE #1 REGULATOR WHICH DID NOT CORRECT THE PROBLEM. WHILE TURNING ON DOWNWIND THE GEAR HANDLE WAS PLACED DOWN & ALL ELECT POWER WAS LOST. THE PLT THEN CRANKED THE GEAR DOWN UNTIL RESISTANCE WAS MET, BUT DID NOT COUNT THE NUMBER OF REVOLUTIONS. THE ACFT TOUCHED DOWN WITH PARTIALLY EXTENDED LANDING GEAR. BOTH BATTERIES WERE FOUND DRY. THE LEFT ALTERNATOR HAD NO OUTPUT & RIGHT ALTERNATOR CURRENT LIMITER WAS BURNED OPEN. THE PLT INDICATED DURING A SUBSEQUENT INTERVIEW THAT HE DID NOT TURN OFF ANY ELECTRICAL EQUIPMENT. HE ALSO STATED THAT HE HAD NOT EXERCISED THE EMERG LANDING GEAR SYSTEM IN FLIGHT PRIOR TO THIS MISHAP.
Flight
Event TypeAccident
Event Time13:20 EDT
Nearest AirportAllendale County (0nm N)
Runway17
Runway Length3200 ft
Runway Width75 ft
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftBeech 58
Tail NumberN958MC
Aircraft CategoryAir
DamageSubstantial
OperatorGrand Strand Aviation
Operating RulePart 135
Engines2
Engine TypeReciprocating
Engine DetailsContinental · IO-520-C7 · Reciprocating · 285
Seats6
People & Injuries
Injury SummaryNo injuries (2 uninjured)
Fatal0
Serious0
Minor0
Uninjured2
Total2
Crew 1Age 33 · Second Class
Conditions
ConditionsVMC
LightDaylight
Wind150° @ 6 kt
Visibility7 sm
CeilingOvercast 10000 ft
Temperature / Dew Point18 C / 0 C
Altimeter30.00 inHg