TECUNSEH, MI, USA
N5299
GRUMMAN G-164A
WHILE ON AN AERIAL APPLICATION FLIGHT, THE PLT NOTED A CHANGE IN ENGINE SOUND AND A SLIGHT POWER LOSS. DURING TURN TO RETURN TO THE AIRSTRIP FOR PRECAUTIONARY LNDG, COMPLETE POWER LOSS OCCURRED. A FORCED LANDING WAS EXECUTED IN SOFT TERRAIN. ON LNDG ROLL, THE WHEELS SANK IN THE SOFT TERRAIN AND THE ACFT FLIPPED INVERTED. INVESTIGATION REVEALED THE #5 CYLINDER EXHAUST VALVE ROCKER SHAFT AND BOTH RETAINING NUTS (SAFETY WIRE REQUIRED) WERE MISSING.
Source: NTSB Aviation Accident Database
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