Service difficulty report · None · Boeing 7377H4

Difficulty date
August 24, 2022
Submitted
September 26, 2022
Operation
Air carrier
Aircraft
N496WN
Make and model
Boeing 7377H4
Aircraft serial
32478
Aircraft time
59,797 hours, 35,569 cycles
Part
None
Condition
Corroded
Location
Fuselage
Stage of operation
IN
How discovered
9
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

FWD WET AREA FLOOR BEAM STA 294.5 LBL 11 HAS CORROSION. / [01] INSTALLED EWIS PROTECTION AT FLOOR BEAM STA 294.5 LBL11 AREA . REF<BR>20-60-07-913-801;[02] REMOVED CORROSION AT FWD WET AREA FLOOR BEAM STA 294.5 LBL 11 SRM 51-10-02-0G-0; [14] FABRICATED SPLICE ANGLES 4 E/A MATERIAL USED 7075-0 .080' AS PER B737-7 SRM 53-51-2R-16.;;[26] FABRICATED AND LOCATED FASTENER HOLES AT TAPERED FILLERS MATERIAL USED 7075-T6; .O71'[28] VERIFIED STEPS 26 AND 27 FABRICATED AND LOCATED FASTENER HOLES AT TAPERED FILLERS MATERIAL USED 7075-T6; .O71;[29] OK TO TREAT AND PRIME TAPERED FILLERS;[30] TREATED AND PRIMED TAPERED FILLERS AS PER B737-7 SOPM 20-41-02.;[31] OK TO INSTALL TAPERED FILLERS;[32] INSTALLED TAPERED FILLERS AT FLOOR BEAM REPAIR STA 294.5 AS PER B737-7 SRM 53-10-51-2R-16.;[33] VERIFIED STEP 32 INSTALLED TAPERED FILLERS AT FLOOR BEAM REPAIR STA 294.5;[34] ACCOMPLISHED INSTALLATION AT FLOOR BEAM REPAIR BETWEEN LBL 21 TO RBL 25; STA 294.5 AS PER B737-7 SRM 53-10-51-2R-16.;[35] REINSTALLED INTERCOSTALS' BETWEEN STA 294.5 TO STA 277 RBL 12 STEPS #9 SRM51-40-02-0G-0

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