Date:	29-JAN-1983
Time:	12:58
Type:	Mooney M20A
Owner/operator:	William Laine Hobbie Ii
Registration:	N8146E
MSN:	1417
Fatalities:	Fatalities: 4 / Occupants: 4
Other fatalities:	0
Aircraft damage:	Written off (damaged beyond repair)
Category:	Accident
Location:	Prattville, AL -   United States of America
Phase:	Manoeuvring (airshow, firefighting, ag.ops.)
Nature:	Private
Departure airport:	Auburn, AL
Destination airport:
Investigating agency:	NTSB
Confidence Rating:	Accident investigation report completed and information captured

Narrative:
THE LEFT WING SEPARATED AS THE PLT BEGAN A PULL-UP AFTER A LOW PASS. THE SEPARATION POINT WAS IN THE WING ROOT WHERE THEMAIN SPAR HAD BEEN SECURED TO THE FUSELAGE WITH A METAL BRACKET. A BUTT SPLICE HAD BEEN MADE TO THE BOTTOM OF THE WING SPAR. THE FRACTURE AREA AT THE ROOT END OF THE MAIN WING SPAR WAS SOFT, DAMP & DISCOLORED COMPARED TO OTHER WOOD IN THE AREA. THE BUTT JOINT WAS LATER DETERMINED AS HAVING NO CAPABILITY FOR TRANSFERRING AXIAL STRESSES. THIS REPAIR WAS NOT DONE UNDER SUPERVISION OF A LICENSED MECHANIC. THE ACFT HAD OPERATED 40 HRS SINCE THE ANNUAL INSPECTION DATED 6/8/82. AD76-15-1 (INSPECTION OF THE WOOD WING) REQUIRES THAT THE WOOD WING BE INSPECTED IAW MOONEY SB M20-170A. CAUSE:

NTSB: http://www.ntsb.gov/ntsb/brief.asp?ev_id=20001214X41922

Safety recommendation A-84-87 issued 15 August 1984 by NTSB to FAA
Safety recommendation A-84-88 issued 15 August 1984 by NTSB to FAA
Safety recommendation A-84-89 issued 15 August 1984 by NTSB to FAA
Safety recommendation A-84-90 issued 15 August 1984 by NTSB to FAA
Safety recommendation A-84-91 issued 15 August 1984 by NTSB to FAA
Safety recommendation A-84-92 issued 15 August 1984 by NTSB to FAA

Date/time	Contributor	Updates
24-Oct-2008 10:30	ASN archive	Added
21-Dec-2016 19:23	ASN Update Bot	Updated [Time, Damage, Category, Investigating agency]