# SDR SWAA2023071060127

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 16, 2023
- Submitted: July 10, 2023
- Operation: Air carrier
- Aircraft: [N298WN](https://openairdocs.org/aircraft/N298WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 32543
- Aircraft time: 51,544 hours, 30,702 cycles
- System (JASC): [5310 · Fuselage Main, Structure](https://openairdocs.org/jasc/5310)
- Part: Support
- Part number: UNKNOWN
- 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/SWAA2023071060127

## Discrepancy

CORROSION SUPPORT ZEE LOCATED BTW BS 727A TO BS 787 STR 25L LBL 22 AND WL 156 AFT CARGO COMPARTMENT 2023-378974<[01] TOOL USED ULTRASONIC THICKNESS GAUGE P/N: 45MG; S/N: 130066401; CAL DUE DATE: 21-SEP-23;[02] REPLACED SUPPORT ZEE SECTION LOCATED BTW BS 727+4 INCHES TO BS 727E+16 INCHES STR 25L; LBL 22 AND WL 156 AFT CARGO COMPARTMENT IAW B737-700 SRM 51-10-02-0G-0; B737-700 SRM 51-40-02-0G-0 AND DWG 146A7500 SHEET 113 REV -SRM 53-00-53-2R-5 REPAIR 5.<BR>SEE INDIVIDUAL SIGN OFFS BELOW.;[03] TASK CARD COMPLETE AND CERTIFIED AS RII. <BR><BR><BR>SEE INDIVIDUAL SIGNOFFS BELOW.

---
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.