# SDR SWAA2023030902654

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 13, 2023
- Submitted: March 9, 2023
- Operation: Air carrier
- Aircraft: [N218WN](https://openairdocs.org/aircraft/N218WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 32489
- Aircraft time: 58,667 hours, 35,279 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Angle
- Condition: Cracked
- Location: Zn 100 Fus Lower
- 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/SWAA2023030902654

## Discrepancy

CABIN FLOOR SUPPORT INTERCOSTAL AT 380-400 2'LEFT OF CENTER LINE IS CRACKED.<[01] INSTALLED EWIS PROTECTION AT ANGLE REPLACEMENT AREA PER B737-700 AMM 20-60-07-913-801.;[02] REMOVED CRACKED ANGLE AT FLOOR STRCTURE BET. STA 380 AND STA 400 BL0 PER B737-700 SRM 51-40-02-0G-0.;[03] LOCATED AND DRILLED NEW ANGLE PER B737-700 SRM 51-10-02-0G-0.;[04] VERIFIED STEPS #1; #2 AND #3.<BR>OK TO APPLY ALODINE AND PRIMER.;[05] TREATED AND PRIMED NEW HOLES PER B737-700 SRM 51-20-01-0G-0 ANDAMM 51-21-72-370-804.;[06] VERIFIED STEP #5.;[07] OK TO INSTALL NEW ANGLE.;[08] INSTALLED NEW ANGLE AT FLOOR STRCTURE BET. STA 380 AND STA 400 BL0 PER B737-700 SRM 51-40-02-0G-0 AND DRWG #143A5400.;[09] REMOVED EWIS PROTECTION FROM ANGLE REPLACEMENT AREA PER B737-700 20-60-07-913-801.;[10] VERIFIED STEP #8.;[11] VERIFIED STEP #9; EWIS PROTECTION REMOVED AND CLEANED AREA.

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