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NTSB Report
May 21, 1983 · Curtiss-Wright C-46F · N1822M
King Salmon, AK
Overview
Report Status
Preliminary report
Event Type
Accident
Date
May 21, 1983
Injury Outcomes
No injuries (2 uninjured)
Location
King Salmon, AK
Aircraft
Curtiss-Wright C-46F
Tail Number
N1822M
Injuries
None
Aircraft Damage
Substantial
NTSB Number
ANC83FA080
THE COPLT REPORTED THAT THE ACFT HAD BEEN IN LEVEL CRUISE FLT APRX 1 MIN WHEN THEY FELT A VIBRATION, FOLLOWED BY A LOUD BANG. THE AIRCREW SAW FIRE & SMOKE COMING FROM THE LEFT ENG, SO THEY SHUT DOWN THE ENG & FEATHERED THE PROPELLER. THE PLT ALSO ACTIVATED THE FIRE WALL CUTOFF SYS & THE FIRE EXTINGUISHER, WHICH HE SAID, EXTINGUISHED THE FIRE. THE AIRCREW DIVERTED BACK TO THE DEPARTURE AIRPORT, BUT WHEN THEY TRIED TO EXTEND THE GEAR, THE LEFT MAIN FAILED TO EXTEND & THE RIGHT MAIN ONLY PARTIALLY EXTENDED. THE RIGHT MAIN COULD NOT BE RETRACTED, SO THE ACFT WAS LANDED WITH THE GEAR IN THAT POSITION. AFTER A CRASH LANDING, AIR FORCE CRASH/RESCUE PERSONNEL EXTINGUISHED AN ON-GOING FIRE IN THE LEFT ENG. AN INVESTIGATION REVEALED THAT THE #8 CYLINDER, PN 113149, HAD FAILED. SUBSEQUENTLY; FIRE HAD BURNT THE HYDRAULIC OPERATED COWL FLAPS & HYDRAULIC FLUID WAS PUMPED OVERBOARD. THE MANUAL/HYDRAULICALLY OPERATED GEAR UPLOCKS ON THE RIGHT MAIN GEAR OPERATED, BUT HYDRAULIC FLUID IN THE RESERVOIR BECAME DEPLETED.
Full Narrative
THE COPLT REPORTED THAT THE ACFT HAD BEEN IN LEVEL CRUISE FLT APRX 1 MIN WHEN THEY FELT A VIBRATION, FOLLOWED BY A LOUD BANG. THE AIRCREW SAW FIRE & SMOKE COMING FROM THE LEFT ENG, SO THEY SHUT DOWN THE ENG & FEATHERED THE PROPELLER. THE PLT ALSO ACTIVATED THE FIRE WALL CUTOFF SYS & THE FIRE EXTINGUISHER, WHICH HE SAID, EXTINGUISHED THE FIRE. THE AIRCREW DIVERTED BACK TO THE DEPARTURE AIRPORT, BUT WHEN THEY TRIED TO EXTEND THE GEAR, THE LEFT MAIN FAILED TO EXTEND & THE RIGHT MAIN ONLY PARTIALLY EXTENDED. THE RIGHT MAIN COULD NOT BE RETRACTED, SO THE ACFT WAS LANDED WITH THE GEAR IN THAT POSITION. AFTER A CRASH LANDING, AIR FORCE CRASH/RESCUE PERSONNEL EXTINGUISHED AN ON-GOING FIRE IN THE LEFT ENG. AN INVESTIGATION REVEALED THAT THE #8 CYLINDER, PN 113149, HAD FAILED. SUBSEQUENTLY; FIRE HAD BURNT THE HYDRAULIC OPERATED COWL FLAPS & HYDRAULIC FLUID WAS PUMPED OVERBOARD. THE MANUAL/HYDRAULICALLY OPERATED GEAR UPLOCKS ON THE RIGHT MAIN GEAR OPERATED, BUT HYDRAULIC FLUID IN THE RESERVOIR BECAME DEPLETED.
Flight
Event TypeAccident
Event Time10:46 AHDT
Nearest AirportKing Salmon (0nm N)
Runway11
Runway Length8500 ft
Runway Width150 ft
Flight Plan FiledNone
Aircraft FireIflt
Aircraft ExplosionIflt
Aircraft
AircraftCurtiss-Wright C-46F
Tail NumberN1822M
Aircraft CategoryAir
DamageSubstantial
Operating RulePart 125
Engines2
Engine TypeReciprocating
Engine DetailsP&W · R-2800-S1M1 · Reciprocating · 2250
Seats3
People & Injuries
Injury SummaryNo injuries (2 uninjured)
Fatal0
Serious0
Minor0
Uninjured2
Total2
Crew 1Age 54 · First Class
Conditions
ConditionsVMC
LightDaylight
Wind150° @ 12 kt
Visibility6 sm
CeilingBroken clouds 2000 ft
Temperature / Dew Point46 / 43 C
Altimeter29.00 inHg
Observation Time14:55
Weather SourceWFAC