# SDR SWAA2022020755148

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 21, 2021
- Submitted: February 7, 2022
- Operation: Air carrier
- Aircraft: [N454WN](https://openairdocs.org/aircraft/N454WN), registered now
- Make and model: Boeing 737*
- Aircraft serial: 29851
- Aircraft time: 59,747 hours, 35,307 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Intercostal
- Condition: Cracked
- Location: Fuselage
- Stage of operation: UK
- 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/SWAA2022020755148

## Discrepancy

AFT CABIN FLOOR SUPPORT INTERCOSTAL CRACKED BETWEEN STA 927 & STA 947.5 ; BL-0 MKD ; / [01] REMOVED INTERCOSTAL CRACKED AT AFT CABIN FLOOR SUPPORT BETWEEN STA 927 & STA 947.5;BL-0 AS PER REF B737-700 SRM 51-40-02-0G-0; [02] LOCATED AND DRILLED NEW FLOOR SUPPORT INTERCOSTAL AS PER REF B737-700 SRM 51-40-05-0G-0; [03] VERIFIED STEP 2. OK TO INSTALL.; [04] INSTALLED NEW FLOOR SUPPORT INTERCOSTAL AT AFT CABIN WED AREA AS PER REF B737-700 SRM 51-40-02-0G-0 AND DRAWING #147A5400; [05] REMOVED AND REPLACED FLOOR SUPPORT INTERSCOSTAL BETWWEN STA 927 & 947.5; BL-0 AS PER REF B737-700 SRM 51-40-02-0G-0.; [06] REMOVED AND REPLACED FLOOR SUPPORT INTERSCOSTAL BETWWEN STA 927 & 947.5; BL-0 AS PER REF B737-700 SRM 51-40-02-0G-0.; [07] VERIFIED STEPS 4; 5 AND 6.

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