Cessna 182M N71654

Summary

On 8 April 1993 at about 01:15 local time, a Cessna 182M registered N71654, operated by Calderwood; McMullin; Smith, was involved in an accident near Hamilton, Montana, United States. One person was on board and one had minor injuries. The aircraft was substantially damaged. The NTSB has published a probable cause for this accident; it is quoted in full below.

Date

8 April 1993 at 01:15

Classification

Accident

Location

Hamilton, Montana, United States

Nearest airport

Ravalle County (6S5)

Coordinates

46.1594, -114.1400

Aircraft

Cessna 182M

Registration

N71654

Category

Airplane

Engines

1

Operator

Calderwood; McMullin; Smith

Operating rule

Part 91: General Aviation

Purpose of flight

Personal

Phase of flight

Not recorded

Route

Missoula → Unknown

Aircraft damage

Substantial

Weather

VMC

Light

Day

NTSB number

SEA93LA090

1 person had minor injuries.

THE PILOT'S IMPROPER USE OF CARBURETOR HEAT. A FACTOR WHICH CONTRIBUTED TO THE ACCIDENT WAS THE CARBURETOR ICING CONDITIONS.

Quoted verbatim from the NTSB record. This site does not paraphrase or interpret it.

Read the full NTSB narrative

AFTER ABOUT 15 MIN OF FLIGHT, THE PILOT DESCENDED FROM HIS CRUISE ALTITUDE OF 6,000 FT MSL TO 4,600 FT MSL PRIOR TO ENTERING THE TRAFFIC PATTERN. HE EXECUTED A 360 FOR SPACING, ENTERED DOWNWIND, AND PERFORMED HIS PRE-LANDING CHECKLIST. ACCORDING TO THE PILOT, HE DID NOT APPLY CARBURETOR HEAT UNTIL HE WAS ESTABLISHED ON FINAL AND HAD SELECTED FULL FLAPS, REDUCED POWER TO 15 IN MP, AND ADVANCED THE PROPELLER FULL FORWARD. WHEN THE CARBURETOR HEAT WAS SUPPLIED, THE ENGINE EXPERIENCED A 'SEVERE/SIGNIFICANT' POWER LOSS. THE AIRPLANE TOUCHED DOWN HARD IN SOFT TERRAIN SHORT OF THE RUNWAY AND FLIPPED OVER. THE OWNERS MANUAL 'LET-DOWN' CHECKLIST CALLS FOR CARBURETOR HEAT TO BE APPLIED 'IF ICING CONDITIONS EXIST.' IN THE EXISTING WEATHER CONDITIONS, SEVERE CARBURETOR ICING COULD OCCUR AT GLIDE POWER.

Quoted verbatim from the NTSB record.