Service difficulty report · Downlock · Beech B99

Difficulty date
December 7, 1999
Submitted
March 26, 2000
Operation
Air carrier
Aircraft
N99CA
Make and model
Beech B99
Aircraft serial
U127
Part
Downlock
Part number
508103381
Condition
Broken
Location
Lt Mlg
Component
50810335
Stage of operation
NR
Nature of condition
O
Precautionary procedure
O

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

LEFT MAIN GEAR DOWNLOCK BROKEN. PROBLEM OCCURRED UNDER NORMAL CONDITIONS. DOWNLOCK HOOK SHOWED SIGNS OF WEAR ON THE INSIDE OF THE HOOK THAT COULD BE CONDUCIVE TO TIGHT DOWNLOCK ENGAGEMENT. SUBMITTER STATED DOWNLOCK SHOULD NOT BE LOOSE AS TO CAUSE AN UNSAFE CONDITION, BUT SHOULD HAVE A SMALL AMOUNT OF PLAY AND SHOULD ALWAYS BE RIGGED IAW APPROPRIATE MM.

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