Service difficulty report · Beam · Boeing 747481

Difficulty date
May 5, 2025
Submitted
May 5, 2025
Operation
Air carrier
Aircraft
N263SG
Make and model
Boeing 747481
Aircraft serial
29263
Aircraft time
53,864 hours, 6,922 cycles
Part
Beam
Condition
Corroded
Location
Zone 500
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

CORROSION - BEAM, L/H WING OUTBD L/E CAVITY LOWER PNL SUPPORT BEAM INNER FACE, AT OLES 1380 AND OLES 1413.(<P>1. BLENDED OUT THE DAMAGE AREA IAW SRM 51-10-02-0G-0 REV: 123. 2. PFM NDT INSP REFER TO JOB CARD ATTACHING SHEET NO: 0477877. 3. MEASURED REWORK AREA OLES 1380 DEPTH(X) = 0.001", LENGTH = 0.6", WIDTH = 0.5", OLES 14134 DEPTH(X) = 0.003" LENGTH = 0.7", WIDTH = 0.5". IT WAS ALLOWABLE IAW SRM 57-41-13-1A1, DETAIL V REV 123. 4. APPLY PROTECTIVE COATING AT REWORK AREA IAW SRM 51-20-01-0G-0, REV 123. 5. CONDITION CHECK NORMAL AND JOB COMPLETED.</P>)