# SDR SWAA2024011030650

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 11, 2023
- Submitted: January 10, 2024
- Operation: Air carrier
- Aircraft: [N8557Q](https://openairdocs.org/aircraft/N8557Q), registered now
- Make and model: Boeing 737-8H4
- Registry model: [Boeing 737-8H4](https://openairdocs.org/model/boeing-737-8h4) (OpenAirDocs)
- Aircraft serial: 63582
- Aircraft time: 20,011 hours, 10,087 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- 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/SWAA2024011030650

## Discrepancy

CORROSION FWD CARGO BAY AFT LOWER BULKHEAD SUPPORT HAS MULTIPLE AREAS AROUND FASTENER HOLES BS500I LBL21 TO RBL21<[01] CORROSION ON FWD CARGO BAY AFT LOWER BULKHEAD SUPPORT BS500I LBL21 TO RBL21 FOUND TO BE OUT OF LIMITS. REMOVED; REPLACED AND INSTALLED NEW LOWER BULKHEAD SUPPORT AT BS 500I PER SRM 53-30-08-1A-1; SRM 51-40-02-0G-0 AND DWG 143A7902.;[02] VERIFIED CORRECTIVE ACTION #1

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