# SDR SWAA2022111560583

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 16, 2022
- Submitted: November 15, 2022
- Operation: Air carrier
- Aircraft: [N207WN](https://openairdocs.org/aircraft/N207WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 34012
- Aircraft time: 56,256 hours, 33,707 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Floor Support
- Condition: Cracked
- Location: Bs 277-294 Bl0
- 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/SWAA2022111560583

## Discrepancy

FWD CABIN WET AREA FLOOR STRUCTURE INTERCOSTAL CRACKED AT UPPER CAP BETWEEN STA 277 AND STA 294.5 BL-0 MKD DOT / [01] REMOVED INTERCOASTAL AT FWD WET AREA ;STA 277 TO STA 294.5;BL-0;PER B 737-700 SRM 51-40-01-0G-0.;[02] LOCATED AND DRILL INTERCOSTAL AT FWD WET AREA;STA 227 TO STA 294.5;BL-0;PER B 737-700 SRM 51-10-02-0G-0;[03] REMOVED INTERCOSTAL AT FWD WET AREA;STA 277 TO STA 294.5;BL-0 PER B 737-700 SRM 51-40-02-0G-0;[04] LOCATED AND DRILL INTERCOSTAL AT FWD WET AREA;STA 277 TO 294.5;BL-0 PER B 737-700 SRM 51-10-02-0G-0;[05] CORRECTION ON STEP # 2 AND 4 - CORRECT REF. IS SRM 51-40-05-0G-0;[06] VERIFIED STEPS:3;4 AND 5. <BR>OK TO TREAT AND PRIME AT NEW INTERCOSTAL.;[07] TREATED AND PRIMED NEW HOLES ON FLOOR SUPPORT PER B737-700 SRM 51-20-01-0G AND AMM 51-21-72-370-804;[08] VERIFIED STEP 7.;[09] OK TO INSTALL NEW INTERCOSTAL AT STA 277 TO STA 294.5;BL-0;[10] INSTALLED NEW INTERCOSTAL AT STA 277 TO STA 294.5;BL-0;PER B 737-700 SRM 51-40-02-0G-0;[11] VERIFIED INSTALLATION OF NEW INTERCOSTAL.

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