# SDR SWAA2021102831873

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 19, 2021
- Submitted: October 28, 2021
- Operation: Air carrier
- Aircraft: [N901WN](https://openairdocs.org/aircraft/N901WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 32545
- Aircraft time: 46,086 hours, 26,832 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/SWAA2021102831873

## Discrepancy

CRACK NOTED IN RADIUS OF LATERAL INTERCOSTAL AT BS 270; NEAR BL 0; .5' L; BELOW FLOOR LINE.    BLENDED FWD SIDE OF LATERAL INTERCOSTAL AT BS 270 CRACK LOCATION IAW SRM 51-10-02-0G-0.  UT MEASURED IAW B737 NDT P4 51-00-00 P2.  FOUND .050' ORIG; .029' REM; .021' LOSS.  HFEC IAW NDT P6 51-00-00 P23.  CRACK NOTED.  UT IAW  NDT PART 4; 51-00-00 PR0C 2.  REMOVED DAMAGE FROM BS 270.   FABRICATED REPAIR PARTS AND INSTALLED IAW EA 21-153-03144.

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