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NTSB Report
March 4, 1991 · Beech F-33A · N77Y
West Brookfield, MA
Overview
Report Status
Probable Cause
Event Type
Accident
Date
March 4, 1991
Injury Outcomes
4 injuries (2 serious injuries, 2 minor injuries)
Location
West Brookfield, MA
Aircraft
Beech F-33A
Tail Number
N77Y
Operator
Stephen Grady
Injuries
Serious
Aircraft Damage
Destroyed
NTSB Number
NYC91FA080
THE AIRPLANE STRUCK TREES ON UNLIGHTED, RISING TERRAIN AFTER FLYING AN INSTRUMENT APPROACH TO TONE AIRPORT AND ATTEMPTING TO PROCEED TO ANOTHER AIRPORT. THE ACCIDENT OCCURRED 700 FEET BELOW APPROACH MINIMUMS AND 6 MILES AWAY FROM THE INSTRUMENT APPROACH AIRPORT AT NIGHT WITH RAIN AND LOW CLOUDS PRESENT. RADAR DATA SHOWED THE AIRPLANE OPERATING BELOW THE MINIMUM ALTITUDES FOR THE INSTRUMENT APPROACH AND NOT FOLLOWING THE PUBLISHED APPROACH PROCEDURE. THE PILOT SAID HE DECIDED TO TURN BACK TO THE FIRST AIRPORT AND IN THE PROGRESS THE AIRPLANE STRUCK RISING TERRAIN. THE PILOT SAID THERE WERE NO PROBLEMS WITH THE ENGINE OR AIRFRAME.
NTSB Probable Cause
THE DECISION OF THE PILOT TO FLY THE AIRPLANE IN CONDITIONS THAT PREVENTED HIM FROM SEEING AND AVOIDING HIGHER TERRAIN. FACTORS RELATED TO THE ACCIDENT WERE THE PILOT'S DECISION TO NOT FOLLOW THE INSTRUMENT APPROACH INTO PALMER, AND THE REDUCED VISIBILITY DUE TO RAIN, FOG AND NIGHT.
Full Narrative
THE AIRPLANE STRUCK TREES ON UNLIGHTED, RISING TERRAIN AFTER FLYING AN INSTRUMENT APPROACH TO TONE AIRPORT AND ATTEMPTING TO PROCEED TO ANOTHER AIRPORT. THE ACCIDENT OCCURRED 700 FEET BELOW APPROACH MINIMUMS AND 6 MILES AWAY FROM THE INSTRUMENT APPROACH AIRPORT AT NIGHT WITH RAIN AND LOW CLOUDS PRESENT. RADAR DATA SHOWED THE AIRPLANE OPERATING BELOW THE MINIMUM ALTITUDES FOR THE INSTRUMENT APPROACH AND NOT FOLLOWING THE PUBLISHED APPROACH PROCEDURE. THE PILOT SAID HE DECIDED TO TURN BACK TO THE FIRST AIRPORT AND IN THE PROGRESS THE AIRPLANE STRUCK RISING TERRAIN. THE PILOT SAID THERE WERE NO PROBLEMS WITH THE ENGINE OR AIRFRAME.
Flight
Event TypeAccident
Event Time19:30 EST
Nearest AirportPalmer Metropolitan (7nm ENE)
Runway0
Flight Plan FiledIFR
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftBeech F-33A
Tail NumberN77Y
Aircraft CategoryAir
DamageDestroyed
OperatorStephen Grady
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsContinental · IO-520 · Reciprocating · 285
Seats5
People & Injuries
Injury Summary4 injuries (2 serious injuries, 2 minor injuries)
Fatal0
Serious2
Minor2
Uninjured0
Total4
Crew 1Age 42 · First Class
Conditions
ConditionsUnknown
LightDark Night
WindCalm
CeilingNone
Temperature / Dew Point0 C / 0 C
Altimeter0
Weather SourceWIT