A C150 instructor conducting a checkout with a licensed pilot failed to select carburetor heat durin...

Narrative:

While flight instructing; training a licensed pilot in stalls; stall awareness; and stall recoveries; carburetor heat was not applied. The outside air temperatures were sufficient enough to produce carburetor ice. The engine lost power; and best glide was established. Time allotted for three restart attempts; checking carburetor heat; fuel; mags; etc... While gliding the plane successfully into a nice field; instructing a 'real time' engine out procedure; and calling out restart checks; the carburetor heat did not clear the ice. A successful soft field landing was executed with no incident. This was a checkout/currency flight; wanting to review all phases of flight for eventual solo. While intensely instructing; and calling out entry and recovery procedures; I failed to verify carburetor heat was indeed on. In unusual attitudes; and stall recovery training; a more thorough briefing on the importance in the use of applying carburetor heat should have been reviewed. In longer reductions of power; such as in stall series training; especially in dew point temperature ranges that are conducive to carburetor icing; training the use of carburetor heat should be stressed by all flight instructors and pilots alike.the aircraft was flown back from the location of the forced landing with no incident.

Original NASA ASRS Text

Title: A C150 Instructor conducting a checkout with a licensed pilot failed to select carburetor heat during stall training which resulted in the engine quitting. A successful off airport landing followed unsuccessful inflight start attempts.

Narrative: While flight instructing; training a licensed pilot in stalls; stall awareness; and stall recoveries; carburetor heat was not applied. The outside air temperatures were sufficient enough to produce carburetor ice. The engine lost power; and best glide was established. Time allotted for three restart attempts; checking carburetor heat; fuel; mags; etc... While gliding the plane successfully into a nice field; instructing a 'real time' engine out procedure; and calling out restart checks; the carburetor heat did not clear the ice. A successful soft field landing was executed with no incident. This was a checkout/currency flight; wanting to review all phases of flight for eventual solo. While intensely instructing; and calling out entry and recovery procedures; I failed to verify carburetor heat was indeed on. In unusual attitudes; and stall recovery training; a more thorough briefing on the importance in the use of applying carburetor heat should have been reviewed. In longer reductions of power; such as in stall series training; especially in dew point temperature ranges that are conducive to carburetor icing; training the use of carburetor heat should be stressed by all flight instructors and pilots alike.The aircraft was flown back from the location of the forced landing with no incident.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.

Attributes
ACN	1330370
Time
Date	201602
Local Time Of Day	0601-1200
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	Cessna 150
Operating Under FAR Part	Part 91
Flight Phase	Descent
Route In Use	None
Flight Plan	None
Component
Aircraft Component	Intake Ice System
Person 1
Function	Instructor Pilot Flying
Qualification	Flight Crew Commercial Flight Crew Flight Instructor Flight Crew Instrument
Experience	Flight Crew Last 90 Days 32 Flight Crew Total 4515 Flight Crew Type 87
Events
Anomaly	Deviation - Procedural Published Material / Policy

A C150 instructor conducting a checkout with a licensed pilot failed to select carburetor heat during stall training which resulted in the engine quitting. A successful off airport landing followed unsuccessful inflight start attempts.