Service difficulty report · Rib · Beech 400A

Difficulty date
September 18, 2012
Submitted
September 28, 2012
Operation
Air carrier
Aircraft
N448LX
Make and model
Beech 400A
Aircraft serial
RK305
Aircraft time
8,412 hours, 7,096 cycles
Engine
Pwa JT15D5
Part
Rib
Part number
45A211135
Condition
Cracked
Location
Zone 300
Part time
8,412 hours, 7,096 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 INSPECTION, RIB WAS FOUND CRACKED ON THE LOWER FLANGE AT LT HORIZONTAL CANTED BS 13.78, BETWEEN THE FWD AND AFT SPARS. CRACKS EMANATE FROM THE FASTENER HOLES. RIB REPLACED.

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