Pilot Debrief

Cessna 402B near Fort Lauderdale, FL — 2008-03-15

Final reportMIA08LA079
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Date
2008-03-15
Location
Fort Lauderdale, FL, USA
Airport
FXE
Aircraft
Cessna 402B
Registration
N300SH
Category
Airplane
Highest injury
None
Fatalities
0
Phase of flight
Landing

Probable cause

The improper adjustment of the right main landing gear down lock by maintenance personnel resulting in the gear collapse during the landing roll..

NTSB narrative

The pilot reported that during approach, he observed only two down and locked indications for the nose and left main landing gear. The pilot's attempts to get the right main landing gear down and locked indication were unsuccessful, and a visual inspection of the landing gear by an air traffic controller revealed that the landing gear appeared to be down and locked. During the landing, the right main landing gear collapsed. Examination of the airplane revealed that the right main landing gear down lock micro switch was loose and not fully closed. Review of the operator's records and interviews of the operator's maintenance personnel revealed that several days prior to the accident, they made an improper adjustment to the right "side brace lock link," which was beyond the manufacturer's specifications, and prevented the right main gear to lock in the down position. In addition, after the adjustment, the maintenance personnel did not perform functional checks as required by the manufacturer's instructions.

Analysis

Primary failure mode
Mechanical failure
First missed decision gate
Functional checks not performed after maintenance adjustment to landing gear.

NTSB coding

Evidence available

  • 3 docket documents
View NTSB final reportView NTSB docket

Docket documents3

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