Service difficulty report · Upperchord · Boeing 747123

Difficulty date
July 24, 1996
Submitted
March 26, 2000
Operation
Air carrier
Aircraft
N675UP
Make and model
Boeing 747123
Aircraft serial
20390
Part
Upperchord
Condition
Cracked
Location
Bs 1000
Stage of operation
IN
Nature of condition
O
Precautionary procedure
O

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

What was found

INSPECTION TYPE CPCP, MAIN DECK FLOOR BEAM UPPER CHORD CORRODED AT BS 1000 BETWEEN RBL 70 TO 100. REMOVED CORROSION IAW SRM 51-10-01, UPPER CHORD OUT OF LIMITS IAW SRM 53-10-01. REPAIRED UPPER CHORD AT BS 1000 FROM RBL 70 TO RBL 108 IAW SRM 53-10-07.