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NTSB Report
December 27, 1983 · Beech 58 · N9121S
Marquez, NM
Overview
Report Status
Preliminary report
Event Type
Accident
Date
December 27, 1983
Injury Outcomes
4 injuries (4 fatalities)
Location
Marquez, NM
Aircraft
Beech 58
Tail Number
N9121S
Operator
Charles F Mccool Frey Ass
Injuries
Fatal
Aircraft Damage
Destroyed
NTSB Number
FTW84FA104
THE ACFT WAS FLOWN AT ALTITUDES UP TO 15000 FT IN AREAS OF FORECAST ICING. THE ACFT WAS NOT EQUIPPED WITH OXYGEN. THE ACFT WAS FLOWN ABOVE 14000 FT FOR ABOUT 20 MINUTES AFTER WHICH IT DESCENDED INTO ICING CONDITIONS. SHORTLY THEREAFTER, THE ACFT MADE A CLIMB UNDER ATC DIRECTIONS AND THEN RADAR SHOWED IT MAKING A RAPID DESCENT. THE PLT HAD TOLD THE CONTROLLER THAT THE ACFT HAD PICKED UP ABOUT 1/2 INCH OF RIME ICE. RADAR CONTACT WAS LOST SHORTLY AFTER A READOUT AT 10400 FT. FURTHER ATTEMPTS AT COMMUNICATIONS FAILED. LATER, THE ACFT WAS FOUND WHERE IT HAD CRASHED IN A STEEP, VERTICALLY BANKED DIVE AT A HIGH RATE OF SPEED. RIME ICE WAS FOUND IN THE SNOW NEXT TO THE ELEVATOR COUNTERWEIGHT. THE ELEVATOR TRIM WAS FOUND TRIMMED TO A NOSE-UP POSITION. THE ACFT WAS EQUIPPED WITH DEICING/ANTI-ICING EQUIPMENT & AN AUTOPILOT.
Full Narrative
THE ACFT WAS FLOWN AT ALTITUDES UP TO 15000 FT IN AREAS OF FORECAST ICING. THE ACFT WAS NOT EQUIPPED WITH OXYGEN. THE ACFT WAS FLOWN ABOVE 14000 FT FOR ABOUT 20 MINUTES AFTER WHICH IT DESCENDED INTO ICING CONDITIONS. SHORTLY THEREAFTER, THE ACFT MADE A CLIMB UNDER ATC DIRECTIONS AND THEN RADAR SHOWED IT MAKING A RAPID DESCENT. THE PLT HAD TOLD THE CONTROLLER THAT THE ACFT HAD PICKED UP ABOUT 1/2 INCH OF RIME ICE. RADAR CONTACT WAS LOST SHORTLY AFTER A READOUT AT 10400 FT. FURTHER ATTEMPTS AT COMMUNICATIONS FAILED. LATER, THE ACFT WAS FOUND WHERE IT HAD CRASHED IN A STEEP, VERTICALLY BANKED DIVE AT A HIGH RATE OF SPEED. RIME ICE WAS FOUND IN THE SNOW NEXT TO THE ELEVATOR COUNTERWEIGHT. THE ELEVATOR TRIM WAS FOUND TRIMMED TO A NOSE-UP POSITION. THE ACFT WAS EQUIPPED WITH DEICING/ANTI-ICING EQUIPMENT & AN AUTOPILOT.
Flight
Event TypeAccident
Event Time12:30 MST
Nearest Airport0nm
Runway0
Flight Plan FiledIFR
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftBeech 58
Tail NumberN9121S
Aircraft CategoryAir
DamageDestroyed
OperatorCharles F Mccool Frey Ass
Operating RulePart 91
Engines2
Engine TypeReciprocating
Engine DetailsContinental · IO-520-C · Reciprocating · 285
Seats6
People & Injuries
Injury Summary4 injuries (4 fatalities)
Fatal4
Serious0
Minor0
Uninjured0
Total4
Crew 1Age 41 · Second Class
Conditions
ConditionsVMC
LightDaylight
Wind290° @ 16 kt
Visibility50 sm
CeilingBroken clouds 5000 ft
Temperature / Dew Point52 / 37 C
Altimeter29.00 inHg
Observation Time19:49
Weather SourceWFAC