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NTSB Report
August 13, 1989 · Beech A36 · N3077X
Santa Fe, NM
Overview
Report Status
Probable Cause
Event Type
Accident
Date
August 13, 1989
Injury Outcomes
3 injuries (3 minor injuries)
Location
Santa Fe, NM
Aircraft
Beech A36
Tail Number
N3077X
Operator
Henry Hunter W
Injuries
Minor
Aircraft Damage
Substantial
NTSB Number
DEN89LA194
THE PILOT STATED THAT HE LEANED THE MIXTURE PRIOR TO TAKEOFF. THE DENSITY ALTITUDE WAS ABOUT 9300 FT. AFTER TAKEOFF, THE ENGINE SPUTTERED AND THE PILOT INCREASED THE MIXTURE TO FULL RICH. HOWEVER, THE ENGINE LOST POWER AND A FORCED LANDING WAS MADE ON ROUGH, DESERT TERRAIN. THE OPERATOR'S MANUAL FOR THIS AIRCRAFT SPECIFIED THAT TAKEOFF SHOULD BE MADE WITH THE MIXTURE SET AT FULL RICH, REGARDLESS OF THE ALTITUDE, SINCE 'THE ENGINE-DRIVEN ALTITUDE COMPENSATING FUEL PUMP WILL AUTOMATICALLY LEAN ENGINE MIXTURE.'
NTSB Probable Cause
IMPROPER USE OF THE MIXTURE CONTROL BY THE PILOT DURING TAKEOFF WHICH RESULTED IN FUEL STARVATION. ROUGH/UNEVEN TERRAIN CONTRIBUTED TO THE AIRCRAFT DAMAGE.
Full Narrative
THE PILOT STATED THAT HE LEANED THE MIXTURE PRIOR TO TAKEOFF. THE DENSITY ALTITUDE WAS ABOUT 9300 FT. AFTER TAKEOFF, THE ENGINE SPUTTERED AND THE PILOT INCREASED THE MIXTURE TO FULL RICH. HOWEVER, THE ENGINE LOST POWER AND A FORCED LANDING WAS MADE ON ROUGH, DESERT TERRAIN. THE OPERATOR'S MANUAL FOR THIS AIRCRAFT SPECIFIED THAT TAKEOFF SHOULD BE MADE WITH THE MIXTURE SET AT FULL RICH, REGARDLESS OF THE ALTITUDE, SINCE 'THE ENGINE-DRIVEN ALTITUDE COMPENSATING FUEL PUMP WILL AUTOMATICALLY LEAN ENGINE MIXTURE.'
Flight
Event TypeAccident
Event Time13:30 MDT
Nearest AirportSanta Fe Muni (0nm N)
Runway33
Runway Length6304 ft
Runway Width150 ft
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftBeech A36
Tail NumberN3077X
Aircraft CategoryAir
DamageSubstantial
OperatorHenry Hunter W
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsContinental · IO-550-B · Reciprocating · 300
Seats6
People & Injuries
Injury Summary3 injuries (3 minor injuries)
Fatal0
Serious0
Minor3
Uninjured0
Total3
Crew 1Age 60 · Third Class
Conditions
ConditionsVMC
LightDaylight
Wind20° @ 10 kt
Visibility40 sm
CeilingNone
Temperature / Dew Point50
Altimeter30.00 inHg
Observation Time19:29
Weather SourceWFAC