# SDR SWAA2023041716660

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 14, 2023
- Submitted: April 17, 2023
- Operation: Air carrier
- Aircraft: [N221WN](https://openairdocs.org/aircraft/N221WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 34259
- Aircraft time: 58,906 hours, 34,822 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Strap
- 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/SWAA2023041716660

## Discrepancy

CORROSION STRAP LOCATED BS847 AT LEVEL STR25R AND WL163 AFT CARGO COMPARTMENT 2023-185448<[01] TOOL USED ULTRASONIC THICKNESS GAGE PN 45MG SN 130066401 DUE DATE 21-SEP-23.;[02] REPLACED STRAP LOCATED BS767 TO BS867 AT LEVEL STR25R AND WL163 AFT CARGO COMPARTMENT IAW B737 SRM 51-10-02 ITEM 9 AND DRAWING # 146A8120 REV: -. SEE INDIVIDUAL SIGN OFF OF BELOW;[03] REPLACED STRAP LOCATED BS767 TO BS867 AT LEVEL STR25R AND WL163 AFT CARGO COMPARTMENT IAW B737 SRM 51-10-02 ITEM 9 AND DRAWING # 146A8120 REV: -. SEE INDIVIDUAL SIGN OFF OF BELOW RII Ï¿½TEM

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