# SDR SWAA2025012378748

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 17, 2024
- Submitted: January 23, 2025
- Operation: Air carrier
- Aircraft: [N8518R](https://openairdocs.org/aircraft/N8518R), registered now
- Make and model: Boeing 737-8H4
- Registry model: [Boeing 737-8H4](https://openairdocs.org/model/boeing-737-8h4) (OpenAirDocs)
- Aircraft serial: 63593
- Aircraft time: 26,817 hours, 13,369 cycles
- System (JASC): [5315 · Fuselage Main, Floor Beam](https://openairdocs.org/jasc/5315)
- Part: Floorbeam
- Condition: Corroded
- Location: Zone 200
- Stage of operation: IN
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA2025012378748

## Discrepancy

DOT#61 A-043 AFT CABIN WET AREA FLOOR BEAM CORRODED AROUND DOMENUT HOLE AT STA 986 RBL 44 WL 208<[01] REMOVED DOMENUT ON STA 986 RBL 44 WL 208 I.A.W. SRM 51-40-02-0G-0<BR>REMOVED CORROSION ON AFT CABIN WET AREA FLOOR BEAM CORRODED AROUND DOMENUT HOLE AT STA 986 RBL 44 WL 208 I.A.W. SRM 51-10-02-0G-0<BR>EVALUATED DAMAGE AND FOUND TO BE OUT OF LIMITS IAW SRM 53-70-51-1A-1 STEP: 4.H(2)(B)<BR>ORIGINAL: 0.150'<BR>REMAINING: 0.131'<BR>MATERIAL VERIFICATION STRAP [1]<BR>ATAG: A220701<BR>P/N: 7075-T6-100<BR>MATERIAL VERIFICATION SHIM [2]<BR>ATAG: A25754<BR>P/N: 7075-T6-020<BR>IAW SRM 53-70-51-2R-6 STEP: 2.B; ALTERNATIVE 3; TABLE 203.<BR>FABRICATED REAPAIR PARTS IAW SRM 57-70-51-2R-6 STEP: 4.F(3) TABLE 203/ REPAIR 6 & FIGURE 204/ REPAIR 6<BR>PERFORMED FLAP PEENING IAW SRM 57-70-51-2R-6 STEP: 4.E<BR>TOOL USED: STAAR 26822<BR>DUE: 06/03/25<BR>APPLIED TREAT & PRIMER TO THE REPAIR PARTS & REPAIR AREA IAW SRM 57-70-51-2R-6 STEP: 4.K & L<BR>INSTALLED PLUGS<BR>INSTALLED NUT PLATE<BR>ATAG: D49362<BR>P/N: BACN10Z4B2<BR>INSTALLED REPAIR PARTS IAW SRM 57-70-51-2R-6 STEP: 4.M TO Q<BR>APPLIED CIC IAW SRM 57-70-51-2R-6 STEP: 4.R;[02] 04 - REPAIRED PER [SRM 53-70-51-2R-6-B00676 (REPAIR 6 - SECTION 47 - SMALL CORROSION DAMAGE ON THE UPPER CHORD OF THE FLOOR BEAM AT STA 986.5 - PERMANENT)];[03] COMPLETE;[04] COMPLETE <BR>AUDIT C/W

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