# SDR SWAA2023101202507

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 19, 2023
- Submitted: October 12, 2023
- Operation: Air carrier
- Aircraft: [N8555Z](https://openairdocs.org/aircraft/N8555Z), registered now
- Make and model: Boeing 737-8H4
- Registry model: [Boeing 737-8H4](https://openairdocs.org/model/boeing-737-8h4) (OpenAirDocs)
- Aircraft serial: 63600
- Aircraft time: 19,194 hours, 9,554 cycles
- System (JASC): [5322 · Fuselage Internal Mounting Structure](https://openairdocs.org/jasc/5322)
- Part: Support
- Part number: UNKNOWN
- Condition: Cracked
- Location: Zn 200 Fus Top
- 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/SWAA2023101202507

## Discrepancy

MAIN CABIN CENTER WING BOX FLOOR SUPPORT BREAK CRACKED AT STA 540 LBL 2 WL 208.1<[01] REMOVED DAMAGE FLOOR SUPPORT BREACK ONMAIN CABIN CENTER WING BOX REF B 737 SRM 51 40 02;[02] REMOVED AND REPLACED MAIN CABIN CENTER WING BOX FLOOR SUPPORT BREAK AT STA 540 LBL 2 WL 208.1 AS PER 51-40-02-0G-0;[03] VERIFIED STEP 1 AND 2

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