# SDR SWAA2022050290219

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 31, 2022
- Submitted: May 2, 2022
- Operation: Air carrier
- Aircraft: [N475WN](https://openairdocs.org/aircraft/N475WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 32474
- Aircraft time: 59,744 hours, 35,276 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Intercostal
- Condition: Corroded
- Location: Aft Cargo
- 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/SWAA2022050290219

## Discrepancy

CORROSION ON AFT CARGO BAY INTERCOSTAL AT RBL 22 BS 867+3. / [01] VERIFIED APPLICABILITY FOR ALLOWABLE DAMAGE AND IDENTIFICATION IAW SRM 53-60-53-01-2 AND SRM 51-10-02-0G-0;[02] THREE IS NO SRM ALLOWABLE DAMAGE FOR ACB INTERCOSTAL. PART TO BE REPAIRED BY REPLACEMENT IAW SRM 51-10-02-0G-0;[03] VERIFIED CORRECTIVE ACTION 1 AND 2;[04] REMOVED DAMAGED INTERCOSTAL IAW SRM 51-40-02.<BR>RECEIVED A NEW INTERCOSTAL PN 146A7505-7 FROM STORES REF PO 864199.<BR>LOCATED AND DRILLED NEW PART IAW SRM 51-40-05 AND DWG 146A7500 REV: -<BR>OK TO INSTALL.;[05] VERIFIED CORRECTIVE ACTION ENTRY 4. OK TO INSTALL GIVEN.;[06] MEASUREMENTS;[07] INSTALLED NEW PART IAW SRM 51-40-02 AND DWG 146A7500 REV: -.<BR>TASK COMPLETE.;[08] UPDATED MEASUREMENTS;[09] VERIFIED CORRECTIVE ACTION ENTRY 7.;[10] VERIFIED CORRECTIVE ACTION ENTRY 8. CARD COMPLETE.

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