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NTSB Report
May 7, 1982 · Cessna 402A · N4504Q
Bismarck, ND
Overview
Report Status
Preliminary report
Event Type
Accident
Date
May 7, 1982
Injury Outcomes
No injuries (8 uninjured)
Location
Bismarck, ND
Aircraft
Cessna 402A
Tail Number
N4504Q
Operator
Capital Aviation
Injuries
None
Aircraft Damage
Substantial
NTSB Number
DEN82DA079
THE PILOT DISCOVERED THAT THE GEAR WOULD NOT EXTEND ELECTRICALLY. MANUAL EXTENSION WAS ATTEMPTED, BUT THE CRANK WOULD NOT TURN IN EITHER DIRECTION. WHILE APPLYING PRESSURE TO THE CRANKS, THE CHAIN DRIVE FAILED. THE PLANE WAS LANDED WITH THE GEAR RETRACTED. DISASSEMBLY OF THE EMERGENCY EXTENSION SYSTEM REVEALED THAT A SHAFT, PN 0843400-50, WAS BENT AND GOUGE MARKS WERE FOUND ON A TOOTH OF A BEVEL GEAR, PN 0843400-49. ALSO, THE MANUAL EXTENSION CHAIN, PN 500000-52, BETWEEN THE HAND CRANK AND BEVEL GEARS, HAD BROKEN. NO OTHER DISCREPANCIES WERE EVIDENT IN THE LANDING GEAR SYSTEM.
Full Narrative
THE PILOT DISCOVERED THAT THE GEAR WOULD NOT EXTEND ELECTRICALLY. MANUAL EXTENSION WAS ATTEMPTED, BUT THE CRANK WOULD NOT TURN IN EITHER DIRECTION. WHILE APPLYING PRESSURE TO THE CRANKS, THE CHAIN DRIVE FAILED. THE PLANE WAS LANDED WITH THE GEAR RETRACTED. DISASSEMBLY OF THE EMERGENCY EXTENSION SYSTEM REVEALED THAT A SHAFT, PN 0843400-50, WAS BENT AND GOUGE MARKS WERE FOUND ON A TOOTH OF A BEVEL GEAR, PN 0843400-49. ALSO, THE MANUAL EXTENSION CHAIN, PN 500000-52, BETWEEN THE HAND CRANK AND BEVEL GEARS, HAD BROKEN. NO OTHER DISCREPANCIES WERE EVIDENT IN THE LANDING GEAR SYSTEM.
Flight
Event TypeAccident
Event Time21:07 CDT
Nearest AirportBismarck Municipal (0nm N)
Runway35
Runway Length4009 ft
Runway Width100 ft
Flight Plan FiledVFR
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftCessna 402A
Tail NumberN4504Q
Aircraft CategoryAir
DamageSubstantial
OperatorCapital Aviation
Operating RulePart 135
Engines2
Engine TypeReciprocating
Engine DetailsContinental · TSIO-520-E · Reciprocating · 300
Seats10
People & Injuries
Injury SummaryNo injuries (8 uninjured)
Fatal0
Serious0
Minor0
Uninjured8
Total8
Crew 1Age 64 · Second Class
Conditions
ConditionsVMC
LightDusk
Wind320° @ 10 kt
Visibility12 sm
CeilingNone
Temperature / Dew Point10 C / 0 C
Altimeter29.00 inHg
Observation Time21:07