Accident Pitts S1C N22R, Friday 15 January 1993

You can contribute by submitting additional or updated information.

Date:	Friday 15 January 1993
Time:	18:39 LT
Type:	Pitts S1C
Owner/operator:	Private
Registration:	N22R
MSN:	1
Engine model:	Lycoming O-360-A3A
Fatalities:	Fatalities: 0 / Occupants: 1
Other fatalities:	0
Aircraft damage:	Substantial
Category:	Accident
Location:	Godley, TX - United States of America
Phase:	Manoeuvring (airshow, firefighting, ag.ops.)
Nature:	Private
Departure airport:	(NONE)
Destination airport:	(NONE)
Investigating agency:	NTSB
Confidence Rating:	Accident investigation report completed and information captured

Narrative:
DURING AEROBATIC MANEUVERS THE ENGINE BEGAN TO RUN ROUGH AND EXPERIENCED A PARTIAL LOSS OF POWER. TEMPERATURE AND DEW POINT WERE 53 AND 46 DEGREES RESPECTIVELY. ICING PROBABILITY CHARTS SHOW THAT THE AIRPLANE WAS OPERATING IN A REGION CONDUCIVE TO SERIOUS ICING FOR CARBURETOR EQUIPPED AIRPLANES, BOTH PRESSURIZED AND UNPRESSURIZED. THE PILOT SELECTED AN OPEN FIELD TO PERFORM THE LANDING; HOWEVER, IT SLOPED AWAY FROM THE INITIAL TOUCHDOWN. DURING THE INITIAL TOUCHDOWN THE AIRPLANE NOSED OVER AND CARTWHEELED ONCE TO ITS FINAL RESTING PLACE

Probable Cause: THE PARTIAL POWER LOSS DUE TO THE PILOT'S DELAYED APPLICATION OF CARBURETOR HEAT. FACTORS WERE CARBURETOR ICE, AND THE SLOPING TERRAIN

Accident investigation: