# SDR SWAA2023080475386

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 5, 2023
- Submitted: August 4, 2023
- Operation: Air carrier
- Aircraft: [N913WN](https://openairdocs.org/aircraft/N913WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 29840
- Aircraft time: 49,236 hours, 29,953 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Intercostal
- 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/SWAA2023080475386

## Discrepancy

CRACK ON INTERCOSTAL LOCATED FLOOR STRUCTURE BS 540 BTW BL 0 TO RBL 24.75 AT CENTER SECTION 2023-431107<[01] INSTALLED NEW INTERCOSTAL AND FASTENERS LOC.FLOOR STRUCTURE BS 540 BTW BL 0 TO RBL 24.75 AT CENTER SECTION IAW B737-700 SRM 51-40-02 SRM 51-10-02 ITEM 9 AND DWG 143A0060 SHEET 46 REV -;[02] CORRECTED STEP 1 <BR>REPLACED INTERCOSTAL AND FASTENERS LOC.FLOOR STRUCTURE BS 540 BTW BL 0 TO RBL 24.75 AT CENTER SECTION IAW B737-700 SRM 51-40-02 SRM 51-10-02 ITEM 9 AND DWG 143A0060 SHEET 46 REV -;[03] CORRECTED STEP 2 <BR>REPLACED INTERCOSTAL AND FASTENERS LOC.FLOOR STRUCTURE BS 540 BTW BL 0 TO RBL 24.75 AT CENTER SECTION IAW B737-700 SRM 51-40-02 SRM 51-10-02 ITEM 9 AND DWG 143A0060 SHEET 36 REV A;[04] RII ITEM <BR>REPLACED INTERCOSTAL AND FASTENERS LOC.FLOOR STRUCTURE BS 540 BTW BL 0 TO RBL 24.75 AT CENTER SECTION IAW B737-700 SRM 51-40-02 SRM 51-10-02 ITEM 9 AND DWG 143A0060 SHEET 36 REV A

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