# SDR SWAA2022061509834

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 20, 2022
- Submitted: June 15, 2022
- Operation: Air carrier
- Aircraft: [N476WN](https://openairdocs.org/aircraft/N476WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 32475
- Aircraft time: 60,443 hours, 35,915 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Intercostal
- Part number: 141A5410U24
- Condition: Cracked
- Location: Cabin Floor
- 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/SWAA2022061509834

## Discrepancy

MAIN CABIN FWD WET AREA INTERCOSTAL BETWEEN STA 344 AND STA 360 RBL 12' CRACKED / [01] REMOVED INTERCOSTAL AT MAIN CABIN STA 344 TO STA 360 PER SRM 51-40-02-0G-0;[02] DRILLED HOLES IN NEW INTERCOSTAL AT MAIN CABIN STA.344 TO STA. 360 IAW B737-700 SRM 51-40-05-OG-O;[03] VERIFIED 1;[04] VERIFIED HOLES'S DRILL NEW INTERCSTAL;[05] OK TO TREAT AND PRIME DRILLED HOLES;[06] TREATED AND PRIMED HOLES IN NEW INTERCOSTAL IAW B737-700 SRM 51-20-01-OG-O AND AMM 51-21-72-370-804.;[07] VERIFIED 6. OK TO INSTALL;[08] INSTALLED NEW INTERCOSTAL AT MAIN CABIN BETWEEN STA 344 TO STA 360 RBL 12 AS PER B737-700 SRM 51-40-02-0G-0 AND DWG # 141A5400;[09] VERIFIED STEP 8

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