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NTSB Report
August 12, 1991 · Beech V35B · N18307
Belgrade, MT
Overview
Report Status
Probable Cause
Event Type
Accident
Date
August 12, 1991
Injury Outcomes
No injuries (4 uninjured)
Location
Belgrade, MT
Aircraft
Beech V35B
Tail Number
N18307
Operator
Mm&O Aviation
Injuries
None
Aircraft Damage
Substantial
NTSB Number
SEA91LA206
IMMEDIATELY FOLLOWING GEAR RETRACTION ON TAKEOFF THE RIGHT CENTER CABIN WINDOW OPENED. THE PILOT'S ATTENTION WAS DIVERTED BY THE AMBIENT NOISE AND ITS EFFECT ON HIS DAUGHTER WHO WAS SEATED ADJACENT TO THE WINDOW. THE PILOT THEN TURNED HIS ATTENTION TO SECURING THE WINDOW AND DURING THIS EVENT FAILED TO MAINTAIN A POSITIVE CLIMB RATE. THE AIRCRAFT THEN SETTLED BACK TO THE RUNWAY.
NTSB Probable Cause
THE PILOT'S FAILURE TO MAINTAIN A POSITIVE RATE OF CLIMB DURING THE TAKEOFF. FACTORS CONTRIBUTING TO THE ACCIDENT WERE THE OPEN CABIN WINDOW AND THE PILOT'S DIVERTING HIS ATTENTION.
Full Narrative
IMMEDIATELY FOLLOWING GEAR RETRACTION ON TAKEOFF THE RIGHT CENTER CABIN WINDOW OPENED. THE PILOT'S ATTENTION WAS DIVERTED BY THE AMBIENT NOISE AND ITS EFFECT ON HIS DAUGHTER WHO WAS SEATED ADJACENT TO THE WINDOW. THE PILOT THEN TURNED HIS ATTENTION TO SECURING THE WINDOW AND DURING THIS EVENT FAILED TO MAINTAIN A POSITIVE CLIMB RATE. THE AIRCRAFT THEN SETTLED BACK TO THE RUNWAY.
Flight
Event TypeAccident
Event Time18:10 MDT
Nearest AirportGallatin Field (0nm N)
Runway3
Runway Length9003 ft
Runway Width150 ft
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftBeech V35B
Tail NumberN18307
Aircraft CategoryAir
DamageSubstantial
OperatorMm&O Aviation
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsContinental · IO-520 · Reciprocating · 285
Seats4
People & Injuries
Injury SummaryNo injuries (4 uninjured)
Fatal0
Serious0
Minor0
Uninjured4
Total4
Crew 1Age 45 · Second Class
Conditions
ConditionsVMC
LightDaylight
Wind320° @ 4 kt
Visibility30 sm
CeilingNone
Temperature / Dew Point39 C
Altimeter0
Weather SourceWIT