# SDR SWAA2021110916394

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 9, 2021
- Submitted: November 9, 2021
- Operation: Air carrier
- Aircraft: [N783SW](https://openairdocs.org/aircraft/N783SW), registered now
- Make and model: Boeing 737*
- Aircraft serial: 29809
- Aircraft time: 68,060 hours, 40,258 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Intercostal
- Condition: Cracked
- Location: Fuselage
- 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/SWAA2021110916394

## Discrepancy

FWD CABIN FLOOR SUPPORT INTERCOSTAL CRACKED AT BL-0 BETWEEN STA 380 AND STA 400; WL208.1 ; / [01] INSTALLED EWIS PROTECTION AS PER B737-700 AMM 20-60-07-913-801.; [02] REMOVED FLOOR SUPPORT ANGLE AS PER B737-700 SRM 51-40-02-0G-0.; [03] LOCATED AND DRILLED NEW INTERCOSTAL AT MAIN CABIN BETWEEN STA 380 AND STA 400 BL 0 WL 208.1 REF B737-700 SRM 51-40-05-0G-0 AND DWG# 143A5400.; [04] VERIFIED STEP 3; [05] OK TO INSTALL SERVICEABLE INTERCOSTAL ANGLE.; [06] INSTALLED NEW INTERCOSTAL AT MAIN CABIN BETWEEN STA 380 AND STA 400 BL 0 WL 208.1 REF B737-700 SRM 51-40-02-0G-0 AND DWG# 143A5400.; [07] REMOVED EWIS PROTECTION AT MAIN CABIN BETWEEN STA 380 AND STA 400 BL 0 WL 280.1 REF B737-700 AMM 20-60-07-913-801.; [08] VERIFIED STEP 6 AND 7; [09] REMOVED AND REPLACED INTERCOSTAL AT MAIN CABIN BETWEEN STA 380 AND STA 400 BL 0 WL 208.1 REF B737-700 SRM 51-40-02-0G-0 AND DWG# 143A5400.; [10] VERIFIED INSTALLATION

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