Aviation Accident Summary CHI92LA117

LANGDON, ND, USA

Aircraft #1

N2046W

Beech F33A

Analysis

THE PILOT EXTENDED THE GEAR MANUALLY FOLLOWING A COMPLETE ELECTRICAL FAILURE. ACCORDING TO THE PILOT, HE TURNED THE LANDING GEAR HANDCRANK UNTIL HE FELT HEAVY RESISTANCE AND HE THOUGHT THE LANDING GEAR WAS DOWN AND LOCKED; HOWEVER, DURING LANDING, THE GEAR COLLAPSED. POST ACCIDENT INSPECTION OF THE AIRPLANE'S ELECTRICAL SYSTEM DISCLOSED A BROKEN BRUSH IN THE ALTERNATOR.

Probable Cause and Findings

FAILURE OF THE PILOT TO FULLY EXTEND THE LANDING GEAR USING MANUAL PROCEDURES AFTER AN ELECTRICAL SYSTEM FAILURE. A FACTOR ASSOCIATED WITH THE ACCIDENT IS THE PILOT MISREADING A PUBLISHED EMERGENCY PROCEDURE.

 

Source: NTSB Aviation Accident Database

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