Service difficulty report · None · Boeing 747

Difficulty date
October 30, 2022
Submitted
October 31, 2022
Operation
Air carrier
Aircraft
N780BA
Make and model
Boeing 747
Aircraft serial
24310
Aircraft time
89,283 hours, 16,795 cycles
Part
None
Condition
None
Stage of operation
IN
How discovered
V
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

CORROSION-SKIN, FWD CGO COMPARTMENT BILGE SURFACE STA 760~780, S-45L-S-47L.(<P>1) BLENDED OUT THE DAMAGE AREA I.A.W. SRM 51-10-02 REV. 52. 2) PFM NOT INSP REFER TO JOB CARD ATTACHING SHEET NO 0271927. 3) MEASURED REWORK AREA DEPTH= 0.01" LENGTH= 3.2" WIDTH=1.5" AT STA 772 S-46LUS-47L AND DEPTH=0.004" LENGTH=3" WIDTH=1.7" AT STA 762 S-45LUS-46L. IT WAS ALLOWABLE I.A.W SRM 53-00-01-1A-A TABLE I DETAIL II REV. 52 4) APPLY PROTECTIVE COATING AT REWORK AREA I.A.W SRM 51-20-01 REV. 52.5 JOB COMPLETED.</P>)