Service difficulty report · Upper Chord · Boeing 747123

Difficulty date
July 29, 1996
Submitted
March 26, 2000
Operation
Air carrier
Aircraft
N675UP
Make and model
Boeing 747123
Aircraft serial
20390
Part
Upper Chord
Part number
NA
Condition
Corroded
Location
Bs 2040
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 STRUCTURE CORROSION AT FLOOR PANEL FASTENER HOLES IN FLOOR BEAM UPPER CHORD AT STA 2040 RBL 75 TO 98.58. REMOVED CORROSION UPPER CHORD BS 2040 BETWEEN RBL 75 TO 108 IAW SRM 51-10-01. UPPER CHORD OUT OF LIMITS IAW SRM 53-10-01. REPAIRED UPPER CHORD IAW SRM 53-10-07.