# SDR CALA2023111503350

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 11, 2023
- Submitted: November 15, 2023
- Operation: Air carrier
- Aircraft: [N24212](https://openairdocs.org/aircraft/N24212), registered now
- Make and model: Boeing 737824
- Aircraft serial: 28772
- Aircraft time: 74,941 hours, 27,357 cycles
- System (JASC): [5713 · Wing, Longeron/Stringer](https://openairdocs.org/jasc/5713)
- Part: Stringer
- Part number: 112A209204
- Condition: Cracked
- Location: R/H Wing, Str 9
- Stage of operation: IN
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2023111503350

## Discrepancy

R/H WING LOWER SURFACE AT UPPER SKIN RIB 20 STR. 9 HAS POSSIBLE CRACK. WO 3999 NR 37151. REPAIRED CRACK ON RH WING STR 9 RIB 20 REF EO 5720-23034 REV A-G AND ECRA 5720-03360.

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