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NTSB Report
August 27, 1982 · Cessna T207A · N7306U
Boise, ID
Overview
Report Status
Preliminary report
Event Type
Accident
Date
August 27, 1982
Injury Outcomes
3 injuries (3 minor injuries), 4 uninjured
Location
Boise, ID
Aircraft
Cessna T207A
Tail Number
N7306U
Operator
Salmon Air Taxi
Injuries
Minor
Aircraft Damage
Destroyed
NTSB Number
SEA82FA149
BEFORE TAKEOFF, THE PILOT FILED A COMPANY FLIGHT PLAN FOR A VFR FLIGHT FROM BOISE TO SALMON, ID. HE REPORTED THAT DURING INITIAL CLIMB, THE ENGINE SURGED, THEN SEEMED TO RETURN TO NORMAL OPERATION. HE REDUCED THE POWER TO 33 INCHES OF MANIFOLD PRESSURE AND SET THE PROPELLER TO 2550 RPM. SHORTLY THEREAFTER, THE ENGINE BEGAN LOSING POWER AGAIN, THERE WAS A SECOND SURGE, THEN THE PROPELLER STOPPED. DURING AN EMERGENCY LANDING, THE PILOT ELECTED TO CROSS OVER A ROAD AND LAND IN AN OPEN FIELD. HE SAW A POWER LINE ALONG THE ROAD AT THE EDGE OF THE FIELD AND ELECTED TO CROSS UNDER IT TO LAND. HOWEVER, HE DID NOT SEE A SINGLE TELEPHONE POLE ON THE OPPOSITE SIDE OF THE ROAD. THE LEFT WING STRUCK THE POLE AND THE PLANE CARTWHEELED AND CRASHED. AN INVESTIGATION REVEALED THAT THE CRANKSHAFT HAD FAILED FROM FATIGUE.
Full Narrative
BEFORE TAKEOFF, THE PILOT FILED A COMPANY FLIGHT PLAN FOR A VFR FLIGHT FROM BOISE TO SALMON, ID. HE REPORTED THAT DURING INITIAL CLIMB, THE ENGINE SURGED, THEN SEEMED TO RETURN TO NORMAL OPERATION. HE REDUCED THE POWER TO 33 INCHES OF MANIFOLD PRESSURE AND SET THE PROPELLER TO 2550 RPM. SHORTLY THEREAFTER, THE ENGINE BEGAN LOSING POWER AGAIN, THERE WAS A SECOND SURGE, THEN THE PROPELLER STOPPED. DURING AN EMERGENCY LANDING, THE PILOT ELECTED TO CROSS OVER A ROAD AND LAND IN AN OPEN FIELD. HE SAW A POWER LINE ALONG THE ROAD AT THE EDGE OF THE FIELD AND ELECTED TO CROSS UNDER IT TO LAND. HOWEVER, HE DID NOT SEE A SINGLE TELEPHONE POLE ON THE OPPOSITE SIDE OF THE ROAD. THE LEFT WING STRUCK THE POLE AND THE PLANE CARTWHEELED AND CRASHED. AN INVESTIGATION REVEALED THAT THE CRANKSHAFT HAD FAILED FROM FATIGUE.
Flight
Event TypeAccident
Event Time12:39 PDT
Nearest AirportBoise Air Terminal (0nm N)
Runway28R
Runway Length7400 ft
Runway Width150 ft
Flight Plan FiledVFR
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftCessna T207A
Tail NumberN7306U
Aircraft CategoryAir
DamageDestroyed
OperatorSalmon Air Taxi
Operating RulePart 135
Engines1
Engine TypeReciprocating
Engine DetailsContinental · TSIO-520-M-1A · Reciprocating · 310
Seats7
People & Injuries
Injury Summary3 injuries (3 minor injuries), 4 uninjured
Fatal0
Serious0
Minor3
Uninjured4
Total7
Crew 1Age 29 · Second Class
Conditions
ConditionsVMC
LightDaylight
Wind280° @ 8 kt
Visibility25 sm
CeilingBroken clouds 25000 ft
Temperature / Dew Point19 C / 0 C
Altimeter29.00 inHg
Observation Time13:39