NTSB Identification: ATL84LA293.
The docket is stored on NTSB microfiche number 25458.
Accident occurred Monday, September 24, 1984 in LUKA, MS
Aircraft: GRUMMAN AA5-B, registration: N74107
Injuries: 1 Uninjured.

NTSB investigators may not have traveled in support of this investigation and used data provided by various sources to prepare this aircraft accident report.

DURING NORMAL CRUISE FLIGHT THE NUMBER ONE CYLINDER EXHAUST VALVE HEAD SEPARATED FROM THE VALVE STEM CAUSING A SIGNIFICANT POWER LOSS. THE PILOT SET UP A LANDING APPROACH TO A FARM FIELD. ON FINAL APPROACH THE PILOT NOTICED THAT ROUGH AND RISING TERRAIN EXISTED IN THE FIELD. DURING A SLIGHT RIGHT TURN AT 10 FT ABOVE THE GROUND THE WING CAUGHTIN SOME WEEDS AND THE ACFT GROUND LOOPED. THE REASON FOR THE EXAUST VALVE HEAD SEPARATION COULD NOT BE DETERMINED.

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

ENGINE ASSEMBLY,VALVE,INTAKE..SEPARATION


Contributing Factors

TERRAIN CONDITION..HIGH VEGETATION


Contributing Factors

TERRAIN CONDITION..ROUGH/UNEVEN


Contributing Factors

GROUND LOOP/SWERVE..INADVERTENT..PILOT IN COMMAND

Index for Sep1984 | Index of months