NTSB Identification: MKC82IA070
14 CFR Part 91: General Aviation
Incident occurred Saturday, May 01, 1982 in AVA, MO
Probable Cause Approval Date: 05/01/1983
Aircraft: BEECH M35, registration: N9783R
Injuries: 2 Uninjured.

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

DURING A NIGHT CROSS-COUNTRY FROM PRYOR, OK TO AVA, MO, THE AIRCRAFT EXPERIENCED A TOTAL ELECTRICAL FAILURE AS A RESULT OF A LOOSE ALTERNATOR BELT AND A DEPLETED BATTERY. ON ARRIVAL AT HIS DESTINATION, THE PILOT SELECTED GEAR DOWN WITH THE NORMAL EXTENSION HANDLE AND IMMEDIATELY LOST WHAT REMAINED OF HIS ELECTRICAL POWER. HE THEN EXTENDED THE GEAR USING THE EMERGENCY EXTENSION CRANK. ON TOUCHDOWN THE NOSE GEAR COLLAPSED AND FOLDED BACK INTO THE WHEEL WELL. EXAMINATION OF THE LANDING GEAR SYSTEM BY AN A&P MECHANIC REVEALED NO ABNORMALITIES IN EITHER THE NORMAL OR EMERGENCY EXTENSION SYSTEMS. HOWEVER, THE MECHANIC FOUND THAT THE ALTERNATOR BELT WAS LOOSE AND THE BATTERY WAS DEPLETED.

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

LANDING GEAR,EMERGENCY EXTENSION ASSEMBLY..NOT ENGAGED

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

EMERGENCY PROCEDURE..IMPROPER USE OF..PILOT IN COMMAND


Contributing Factors

ELECTRICAL SYSTEM,ALTERNATOR..LOOSE


Contributing Factors

AIRCRAFT PREFLIGHT..INADEQUATE..PILOT IN COMMAND


Contributing Factors

ELECTRICAL SYSTEM,BATTERY..OUTPUT LOW


Contributing Factors

EMERGENCY PROCEDURE..INADEQUATE..PILOT IN COMMAND


Contributing Factors

IMPROPER TRAINING(EMERGENCY PROCEDURE(S))..PILOT IN COMMAND

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