Service difficulty report · Rib · Boeing 7374Q8

Difficulty date
March 30, 2013
Submitted
May 10, 2013
Operation
Air carrier
Aircraft
N764AS
Make and model
Boeing 7374Q8
Aircraft serial
25101
Aircraft time
63,614 hours, 40,242 cycles
Part
Rib
Part number
654544556
Condition
Cracked
Location
Rt Wing
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

DURING INSPECTION, FOUND LOWER RIB ATTACH FITTING AT RT WING RIB NR 4 WBL 135.5 BETWEEN STRINGERS 4 AND 4 TO BE CRACKED AT AFT RADIUS. ACFT GROUNDED. REPAIRED CRACKED LOWER RIB CHORD IAW EA 400 57, EA 10305.

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