Service difficulty report · Beam · Boeing 7474J6

Difficulty date
May 10, 2025
Submitted
May 12, 2025
Operation
Air carrier
Aircraft
N747BC
Make and model
Boeing 7474J6
Aircraft serial
25879
Aircraft time
55,103 hours, 12,923 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 LOWER PNL FWD SUPPORT BEAM INNER FACE OLES 1552.(<P>1. BLENDED OUT THE DAMAGE AREA IAW SRM 51-10-02-0G-0 REV 60. 2. PFM NDT INSP REFER TO JOB CARD ATTACHING SHEET 0473659. 3. MEASURED REWORK AREA D= 0.003", L= 0.5", W= 0.4", IT WAS ALLOWABLE IAW SRM 57-41-13-1A-1 DEATIL V REV 60. 4. APPLY PROTECTIVE COATING AT REWORK AREA IAW SRM 51-20-01-0G-0 REV 60. 5. JOB COMPLETED.</P>)

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