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NTSB Report
February 18, 1991 · Beech 95 · N2772Y
Roundup, MT
Overview
Report Status
Probable Cause
Event Type
Accident
Date
February 18, 1991
Injury Outcomes
No injuries (3 uninjured)
Location
Roundup, MT
Aircraft
Beech 95
Tail Number
N2772Y
Operator
Ross E Rogers
Injuries
None
Aircraft Damage
Substantial
NTSB Number
SEA91LA053
WHILE AT CRUISE FLIGHT AND IN IMC, THE RIGHT ENGINE LOST PARTIAL POWER. THE PILOT STATED THAT WHILE HE WAS ASSESSING THE PROBLEM WITH THE RIGHT ENGINE, THE LEFT ENGINE ALSO LOST PARTIAL POWER. THE PILOT DID NOT FOLLOW THE MANUFACTURER'S SINGLE ENGINE PROCEDURES, OR ENGINE ICE PROTECTION PROCEDURES. THE AIRPLANE WAS UNABLE TO MAINTAIN ALTITUDE AND A FORCED LANDING WAS INITIATED. DURING THE LANDING ROLL IN AN OPEN FIELD, THE AIRPLANE COLLIDED WITH A DITCH. WEATHER FORECASTS CAUTIONED OF MODERATE RIME ICING IN THE PRECIPITATION. BOTH ENGINES WERE TEST RUN AND FOUND TO OPERATE WITHIN NORMAL PARAMETERS.
NTSB Probable Cause
PARTIAL LOSS OF POWER FOR UNDETERMINED REASONS.
Full Narrative
WHILE AT CRUISE FLIGHT AND IN IMC, THE RIGHT ENGINE LOST PARTIAL POWER. THE PILOT STATED THAT WHILE HE WAS ASSESSING THE PROBLEM WITH THE RIGHT ENGINE, THE LEFT ENGINE ALSO LOST PARTIAL POWER. THE PILOT DID NOT FOLLOW THE MANUFACTURER'S SINGLE ENGINE PROCEDURES, OR ENGINE ICE PROTECTION PROCEDURES. THE AIRPLANE WAS UNABLE TO MAINTAIN ALTITUDE AND A FORCED LANDING WAS INITIATED. DURING THE LANDING ROLL IN AN OPEN FIELD, THE AIRPLANE COLLIDED WITH A DITCH. WEATHER FORECASTS CAUTIONED OF MODERATE RIME ICING IN THE PRECIPITATION. BOTH ENGINES WERE TEST RUN AND FOUND TO OPERATE WITHIN NORMAL PARAMETERS.
Flight
Event TypeAccident
Event Time12:40 MST
Nearest Airport0nm N
Runway0
Flight Plan FiledIFR
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftBeech 95
Tail NumberN2772Y
Aircraft CategoryAir
DamageSubstantial
OperatorRoss E Rogers
Operating RulePart 91
Engines2
Engine TypeReciprocating
Engine DetailsLycoming · IO-360-A1A · Reciprocating · 180
Seats4
People & Injuries
Injury SummaryNo injuries (3 uninjured)
Fatal0
Serious0
Minor0
Uninjured3
Total3
Crew 1Age 28 · First Class
Conditions
ConditionsVMC
LightDawn
Wind320° @ 8 kt
Visibility5 sm
CeilingOvercast 500 ft
Temperature / Dew Point30 C / 0 C
Altimeter0
Weather SourcePILO