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NTSB Report
July 2, 1982 · Britten-Norman BN-2A · N39MN
Nome, AK
Overview
Report Status
Preliminary report
Event Type
Accident
Date
July 2, 1982
Injury Outcomes
No injuries (1 uninjured)
Location
Nome, AK
Aircraft
Britten-Norman BN-2A
Tail Number
N39MN
Operator
Munz Northern Airlines
Injuries
None
Aircraft Damage
Substantial
NTSB Number
ANC82DA057
DURING THE TAKEOFF ROLL, A PROPELLER BLADE TIP FAILURE OCCURRED ON THE LEFT ENGINE. ABOUT 9 INCHES OF THE BLADE TIP SEPARATED AND ENTERED THE TOP SIDE OF THE FUSELAGE ABOUT 1 FT BEHIND THE PILOT'S HEAD. THE BLADE TIP SEVERED THE THROTTLE, FUEL MIXTURE, CARBURETOR HEAT AND PROPELLER CONTROL CABLES TO THE LEFT ENGINE. ALSO, THE AILERON CABLE BECAME JAMMED IN THE FULL LEFT POSITION AND THE RIGHT ENGINE CABLES WERE DAMAGED. REPORTEDLY, THE LEFT ENGINE WENT TO IDLE POWER AND THE PILOT HAD TO SWITCH THE MAGNETOS OFF IN ORDER TO ABORT THE TAKEOFF. A METALLURGICAL EXAMINATION REVEALED THAT THE PROPELLER BLADE (HARTZELL MODEL: HC-C1YK-2CUF, PN FC8477A-4) HAD FAILED FROM FATIGUE. THE FATIGUE CRACK ORIGINATED AT A DENT IN THE LEADING EDGE OF THE PROPELLER.
Full Narrative
DURING THE TAKEOFF ROLL, A PROPELLER BLADE TIP FAILURE OCCURRED ON THE LEFT ENGINE. ABOUT 9 INCHES OF THE BLADE TIP SEPARATED AND ENTERED THE TOP SIDE OF THE FUSELAGE ABOUT 1 FT BEHIND THE PILOT'S HEAD. THE BLADE TIP SEVERED THE THROTTLE, FUEL MIXTURE, CARBURETOR HEAT AND PROPELLER CONTROL CABLES TO THE LEFT ENGINE. ALSO, THE AILERON CABLE BECAME JAMMED IN THE FULL LEFT POSITION AND THE RIGHT ENGINE CABLES WERE DAMAGED. REPORTEDLY, THE LEFT ENGINE WENT TO IDLE POWER AND THE PILOT HAD TO SWITCH THE MAGNETOS OFF IN ORDER TO ABORT THE TAKEOFF. A METALLURGICAL EXAMINATION REVEALED THAT THE PROPELLER BLADE (HARTZELL MODEL: HC-C1YK-2CUF, PN FC8477A-4) HAD FAILED FROM FATIGUE. THE FATIGUE CRACK ORIGINATED AT A DENT IN THE LEADING EDGE OF THE PROPELLER.
Flight
Event TypeAccident
Event Time03:40 AHDT
Nearest AirportNOME (0nm N)
Runway27
Runway Length6001 ft
Runway Width150 ft
Flight Plan FiledVFR
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftBritten-Norman BN-2A
Tail NumberN39MN
Aircraft CategoryAir
DamageSubstantial
OperatorMunz Northern Airlines
Operating RulePart 135
Engines2
Engine TypeReciprocating
Engine DetailsLycoming · O-540-E4C5 · Reciprocating · 260
Seats10
People & Injuries
Injury SummaryNo injuries (1 uninjured)
Fatal0
Serious0
Minor0
Uninjured1
Total1
Crew 1Age 33 · First Class
Conditions
ConditionsVMC
LightDaylight
Wind120° @ 6 kt
Visibility20 sm
CeilingNone
Temperature / Dew Point13 C / 0 C
Altimeter29.00 inHg