Narrative:

I was giving dual instruction on touch and goes at pne. Both a normal preflight and run-up were completed in accordance with the aircraft pilot's operating handbook (poh). No observation or discrepant responses occurred during either inspection. On the third takeoff in a series of touch-and-goes after reaching an altitude of approximately 500 ft AGL, a complete power loss occurred without warning, forcing an emergency landing. I took control of the aircraft and, because of its proximity, returned and made safe landing on an intersecting runway. There was no damage to either person or property. A resultant notice of inspection, dated dec/xx/93, is enclosed. Note: as of dec/xx/93, the subject carburetor is no longer in the aircraft or available for inspection. Inspection of engine revealed: carburetor leaking fuel. Fuel primer line to strainer broken. #4 cylinder head separating from cylinder body, leaking oil. Aircraft grounded until unairworthy items corrected.

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Original NASA ASRS Text

Title: ENG FAILURE ON SMA WHILE TRAINING IN PROGRESS. INSTRUCTOR PLT MAKES EMER FORCED LNDG ON AN INTERSECTING RWY.

Narrative: I WAS GIVING DUAL INSTRUCTION ON TOUCH AND GOES AT PNE. BOTH A NORMAL PREFLT AND RUN-UP WERE COMPLETED IN ACCORDANCE WITH THE ACFT PLT'S OPERATING HANDBOOK (POH). NO OBSERVATION OR DISCREPANT RESPONSES OCCURRED DURING EITHER INSPECTION. ON THE THIRD TKOF IN A SERIES OF TOUCH-AND-GOES AFTER REACHING AN ALT OF APPROX 500 FT AGL, A COMPLETE PWR LOSS OCCURRED WITHOUT WARNING, FORCING AN EMER LNDG. I TOOK CTL OF THE ACFT AND, BECAUSE OF ITS PROX, RETURNED AND MADE SAFE LNDG ON AN INTERSECTING RWY. THERE WAS NO DAMAGE TO EITHER PERSON OR PROPERTY. A RESULTANT NOTICE OF INSPECTION, DATED DEC/XX/93, IS ENCLOSED. NOTE: AS OF DEC/XX/93, THE SUBJECT CARB IS NO LONGER IN THE ACFT OR AVAILABLE FOR INSPECTION. INSPECTION OF ENG REVEALED: CARB LEAKING FUEL. FUEL PRIMER LINE TO STRAINER BROKEN. #4 CYLINDER HEAD SEPARATING FROM CYLINDER BODY, LEAKING OIL. ACFT GNDED UNTIL UNAIRWORTHY ITEMS CORRECTED.

Data retrieved from NASA's ASRS site as of July 2007 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.