# SDR SWAA2025071682181

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 15, 2025
- Submitted: July 16, 2025
- Operation: Air carrier
- Aircraft: [N225WN](https://openairdocs.org/aircraft/N225WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 34333
- Aircraft time: 64,981 hours, 38,949 cycles
- System (JASC): [5313 · Fuselage Main, Longeron/Stringer](https://openairdocs.org/jasc/5313)
- Part: Stringer
- Condition: Corroded
- Location: Zone 100
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA2025071682181

## Discrepancy

CORROSION ON STRINGER 25L LOCATED BS947.5 TO BS967 AND WL156 AT AFT CARGO COMPARTMENT.  SRM SUPPLEMENT WAS NOT CONSULTED FOR REPAIR INSTRUCTIONS STEP 15 ITEM 2;[04] VERIFIED SUPPLEMENT ARM90-7023-01 REV B PARAGRAPH 3.A TABLE 1002; PAGE 1002; AND THE REPAIR DOES NOT FALL ON AFFECTED STC MODIFICATION.  INSPECT COMPLETED. VERIFIED SUPPLEMENT ARM90-7023-01 REV B PARAGRAPH 3.A TABLE 1002; PAGE 1002; AND THE REPAIR DOES NOT FALL ON AFFECTED STC MODIFICATION.   REPAIRED STRINGER 25L LOCATED BS 947.5 TO BS 987.5 AND WL156 AT AFT CARGO COMPARTMENT IAW SRM 53-00-03-2R-1.

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