Service difficulty report · Support · Beech B90

Difficulty date
June 12, 2012
Submitted
August 3, 2012
Operation
General aviation
Aircraft
N821DA
Make and model
Beech B90
Aircraft serial
LJ406
Part
Support
Part number
50820107
Condition
Cracked
Location
Lt Mlg Actuator
Part time
13,708 hours, 17,277 cycles
Stage of operation
IN
How discovered
V
Nature of condition
O
Precautionary procedure
K

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

What was found

DISCOVERED THE LANDING GEAR SUPPORT ASSY FOR THE LEFT MLG ACTUATOR HAD CRACKS THAT HAD GONE UNDETECTED. THE FAILURE OF THIS SUPPORT BRACKET WHILE THE LANDING GEAR WAS BEING EXTENDED, ALLOWED THE LANDING GEAR TO EXTEND ENOUGH TO PROVIDE A DOWN AND LOCKED INDICATION WITHOUT THE GEAR ACTUALLY BEING DOWN AND LOCKED. ON ROLL OUT AFTER TOUCH DOWN, LT MLG COLLAPSED.

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