# SDR SWAA2023082975548

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 5, 2023
- Submitted: August 29, 2023
- Operation: Air carrier
- Aircraft: [N297WN](https://openairdocs.org/aircraft/N297WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 32542
- Aircraft time: 51,861 hours, 31,224 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Shield
- 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/SWAA2023082975548

## Discrepancy

CORROSION FWD CARGO BAY AFT SHIELD BS500+1 TO BS500+19 RBL22 WL156 HAS MULTIPLE AREAS AROUND NUT PLATE HOLES<[01] VERIFIED STEPS 4 AND 5.;[02] CORROSION ON FWD CARGO BAY AFT SHIELD BS500+1? TO BS500+19? RBL22 WL156 FOUND TO BE OUT OF LIMITS. REMOVED AND REPLACED FCB AFT SHIELD BS493-500A RBL 22 WL 156 IAW SRM 51-40-02 AND DWG #143A0080.;[03] VERIFIED MEASUREMENT TABLE.;[04] VERIFIED STEP 3 AND CORRECTIVE ACTION 2.

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