# SDR SWAA2023050320658

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 24, 2023
- Submitted: May 3, 2023
- Operation: Air carrier
- Aircraft: [N436WN](https://openairdocs.org/aircraft/N436WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 32456
- Aircraft time: 66,420 hours, 39,287 cycles
- System (JASC): [5312 · Fuselage Main, Bulkhead](https://openairdocs.org/jasc/5312)
- Part: Intercostal
- Condition: Corroded
- Location: Zn 100 Fus Lower
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA2023050320658

## Discrepancy

CORROSION WEB - INTERCOSTAL LOCATED BETWEEN BS767 TO BS787 RBL19 AND WL156 AT AFT CARGO COMPARTMENT 2023-208664<[01] REPLACED WEB - INTERCOSTAL AND FASTENERS LOCATED BETWEEN BS767 TO BS787 RBL19 AND WL156 AT AFT CARGO COMPARTMENT IAW B737-700 SRM 51-40-02; SRM 51-10-02 ITEM 9 AND DWG 146A0081 SHEET 28 REV:A;[02] REPLACED WEB - INTERCOSTAL AND FASTENERS LOCATED BETWEEN BS767 TO BS787 RBL19 AND WL156 AT AFT CARGO COMPARTMENT IAW B737-700 SRM 51-40-02; SRM 51-10-02 ITEM 9 AND DWG 146A0081 SHEET 28 REV:A RII CERTIFIED

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