# SDR SWAA2023062050267

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 19, 2023
- Submitted: June 20, 2023
- Operation: Air carrier
- Aircraft: [N7820L](https://openairdocs.org/aircraft/N7820L), registered now
- Make and model: Boeing 737-79P
- Registry model: [Boeing 737-79P](https://openairdocs.org/model/boeing-737-79p) (OpenAirDocs)
- Aircraft serial: 28253
- Aircraft time: 58,307 hours, 37,562 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Stiffener
- 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/SWAA2023062050267

## Discrepancy

CRACK STIFFENER FLOOR STRUCTURE LOCATED BS 540 BETWEEN BL 0 TO LBL 24.75 CENTER SECTION 2023-330358<[01] REPLACED NEW STIFFENER FLOOR STRUCTURE LOCATED BS 540 BETWEEN BL 0 TO LBL 24.75 CENTER SECTION AND FASTENER IAW B737-700 SRM 51-10-02 ITEM 9 AND SRM 51-40-02. IAW DWG 143A0060 SHEET 43 REV-. SEE INDIVIDUAL SIGNOFFS BELOW.;[02] CORRECTED STEP 1<BR>REPLACED STIFFENER FLOOR STRUCTURE LOCATED BS 540 BETWEEN BL 0 TO LBL 24.75 CENTER SECTION AND FASTENER IAW B737-700 SRM 51-10-02 ITEM 9 AND SRM 51-40-02. IAW DWG 143A0060 SHEET 43 REV-. SEE INDIVIDUAL SIGNOFFS BELOW.;[03] REPLACED STIFFENER FLOOR STRUCTURE LOCATED BS 540 BETWEEN BL 0 TO LBL 24.75 CENTER SECTION AND FASTENER IAW B737-700 SRM 51-10-02 ITEM 9 AND SRM 51-40-02. IAW DWG 143A0060 SHEET 43 REV-. SEE INDIVIDUAL SIGNOFFS BELOW. RII CERTIFIED

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