Service difficulty report · Rib · Boeing 747121

Difficulty date
January 7, 1999
Submitted
March 26, 2000
Operation
Air carrier
Aircraft
N691UP
Make and model
Boeing 747121
Aircraft serial
19641
Part
Rib
Part number
65B078495
Condition
Cracked
Location
Lt Wing
Stage of operation
IN
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

INSPECTION TYPE N/A, AFTER REMOVAL OF LT OTBD LEADING EDGE UPPER PANEL, FOUND 7TH L/E RIB FROM OTBD END, UPPER CHORD CRACKED. REMOVED AND REPLACED RIB IAW SRM 51-30-2, 51-10-6, 51-10-1.