# SDR SWAA2021082498574

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 27, 2021
- Submitted: August 24, 2021
- Operation: Air carrier
- Aircraft: [N224WN](https://openairdocs.org/aircraft/N224WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 32493
- Aircraft time: 53,348 hours, 31,840 cycles
- System (JASC): [5313 · Fuselage Main, Longeron/Stringer](https://openairdocs.org/jasc/5313)
- Part: Stringer
- Condition: Corroded
- Location: Bs 351-360 S28r
- 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/SWAA2021082498574

## Discrepancy

CORROSION STRINGER 28R LOCATED AT LEVEL WL148.5 BETWEEN BS351.2 TO BS360 AT EQUIPMENT ELECTRONIC COMP ; 2021-348911 / [01] TOOLS USED: TEMPERATURE CONTROLLER P/N: P3015GOES00000; S/N: 142811020; DUE DATE: 21-JAN-22. TEMPERATURE CONTROLLER P/N: P3015GOES00000; S/N: 142811019; DUE DATE: 21-JAN-22.; [02] TOOL USED: POWER PACK P/N PE1068 S/N PE0118-94826 DUE DATE: 23-FEB-22 MULTIMETER P/N FLUKE 1587 S/N 31980129 DUE DATE: 02-DEC-21 THERMOMETER P/N FLUKE 66 S/N AE-27240 DUE DATE: 24-MAR-22; [03] REPLACED STRINGER SPLICE 28R LOCATED AT LEVEL WL148.5 BETWEEN BS351.2 TO BS360 AT EQUIPMENT ELECTRONIC COMP IAW B737-700 SRM 51-10-02 ITEM 9 AND SRM 41-40-02 AND DWG 140A9101 SHEET 24 MATERIAL USED: ALUMINUM SHEET P/N: 7075-T0-0.036 P/O: 2021 131796.; [04] REPLACED STRINGER SPLICE 28R LOCATED AT LEVEL WL148.5 BETWEEN BS351.2 TO BS360 AT EQUIPMENT ELECTRONIC COMP IAW B737-700 SRM 51-10-02 ITEM 9 AND SRM 41-40-02 AND DWG 140A9101 SHEET 24 MATERIAL USED: ALUMINUM SHEET P/N: 7075-T0-0.036 P/O: 2021 131796... RII ITEM

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.