Accident Boeing E75 N68809, Sunday 30 June 1991

You can contribute by submitting additional or updated information.

Date:	Sunday 30 June 1991
Time:	09:38 LT
Type:	Boeing E75
Owner/operator:	Private
Registration:	N68809
MSN:	75-8414
Year of manufacture:	1941
Engine model:	Lycoming R-680-B4E
Fatalities:	Fatalities: 0 / Occupants: 1
Other fatalities:	0
Aircraft damage:	Substantial
Category:	Accident
Location:	San Luis Obispo, CA - United States of America
Phase:	Landing
Nature:	Private
Departure airport:
Destination airport:
Investigating agency:	NTSB
Confidence Rating:	Accident investigation report completed and information captured

Narrative:
THE PILOT HAD MADE ONE LANDING AND TAKEOFF ON THE 4800 FT LONG AND 100 FT WIDE RUNWAY. WHEN ON THE DOWNWIND LEG THE SURFACE WINDS SHIFTED TO A QUARTERING TAILWIND. THE LOCAL CONTROLLER DID NOT ADVISE THE PILOT OF THE WIND CHANGE AND CLEARED THE FLIGHT TO LAND. UPON TOUCH DOWN THE AIRPLANE GROUND LOOPED AND NOSED OVER. THE PILOT IMPROPERLY USED THE FLIGHT CONTROLS AND BRAKES TO ARREST THE GROUND LOOP. EXAMINATION OF THE BRAKES AND TAILWHEEL ASSEMBLY DISCLOSED NO EVIDENCE OF ANY MALFUNCTIONS OR FAILURES.

Probable Cause: THAT THE PILOT FAILED TO PROPERLY COMPENSATE OF THE EXISTING QUARTERING TAILWIND, IMPROPERLY USING THE FLIGHT CONTROLS AND BRAKES.

Accident investigation: