NTSB Identification: LAX87FA286.
The docket is stored on NTSB microfiche number 36390.
Accident occurred Saturday, August 01, 1987 in OAKDALE, CA
Probable Cause Approval Date: 06/16/1989
Aircraft: LUSCOMBE 8A, registration: N2098B
Injuries: 2 Fatal.

NTSB investigators either traveled in support of this investigation or conducted a significant amount of investigative work without any travel, and used data obtained from various sources to prepare this aircraft accident report.

THE PLT & HIS PLT-RATED WIFE (FLYING IN THEIR LUSCOMBE) & ANOTHER COUPLE (IN A RENTED MOONEY) HAD DINNER & DRANK WINE. BY ABOUT 0015 THE COUPLES HAD TAKEN OFF IN THEIR RESPECTIVE ACFT FOR A RETURN FLT HOME AND THEY HAD EACH OTHER IN SIGHT. THE COUPLE IN THE MOONEY STATED THAT WHILE CRUISING AT 6,500 FEET MSL (& ON A FEDERAL AIRWAY) THE PLT IN THE LUSCOMBE TRANSMITTED 'I'LL SHOW YOU SOMETHING. I'M GOING TO DO A VERTICAL 360. WATCH THIS.' THE MOONEY PLT OBSERVED THE LUSCOMBE DESCEND SLIGHTLY & THEN COMMENCE A CLIMB. THEREAFTER, CONTACT WAS LOST. THE LUSCOMBE WRECKAGE WAS SUBSEQUENTLY FOUND IN NUMEROUS PIECES DISTRIBUTED OVER 3/4-MI. EXAM OF THE ACFT STRUCTURE INCLUDING WING SPARS REVEALED SEVERE CORROSION. NO EVIDENCE OF THE ACFT HAVING A CURRENT ANNUAL INSPECTION WAS FOUND. TOXICOLOGICAL TESTS REVEALED ETHANOL LEVELS OF .02 PERCENT AND .08 PERCENT FOR THE PLT AND HIS WIFE RESPECTIVELY.

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

AEROBATICS..INTENTIONAL..PILOT IN COMMAND

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

FLIGHT CONTROLS..IMPROPER USE OF..PILOT IN COMMAND

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

STABILIZER..FAILURE,TOTAL

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

WING,SPAR..FAILURE,TOTAL

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

WING,SPAR..CORRODED

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

WING,WING ATTACHMENT FITTING..OVERLOAD


Contributing Factors

MAINTENANCE,ANNUAL INSPECTION..NOT PERFORMED..PILOT IN COMMAND


Contributing Factors

JUDGMENT..POOR..PILOT IN COMMAND


Contributing Factors

MAINTENANCE,COMPLIANCE WITH AD..NOT PERFORMED..PILOT IN COMMAND

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