Service difficulty report · Rib · Beech 400A

Difficulty date
October 15, 2007
Submitted
October 19, 2007
Operation
Air carrier
Aircraft
N461LX
Make and model
Beech 400A
Aircraft serial
RK368
Aircraft time
3,279 hours, 2,895 cycles
Part
Rib
Part number
45A21104642
Condition
Cracked
Location
Horizontal Stab
Part time
748 hours, 671 cycles
Stage of operation
IN
How discovered
B
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

DURING A SCHEDULED MAINTENANCE VISIT WHILE PERFORMING A HORIZONTAL STABILIZER ROLLER INSPECTION OF THE HORIZONTAL STABILIZER INBOARD RIB AND BRACKET ASSEMBLIES, BOTH THE RIGHT AND LEFT INBOARD ROLLER BRACKETS WERE FOUND CRACKED. DETAILED INSPECTION INSTRUCTIONS OF THIS AREA ARE OUTLINED IN BEECHJET COMMUNIQUE' NUMBER 70. MAINTENANCE REPLACED BOTH RIB ASSEMBLIES WITH THE IMPROVED ASSEMBLIES.

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