# SDR CALA2026090419248

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 2, 2026
- Submitted: September 4, 2026
- Operation: Air carrier
- Aircraft: [N37516](https://openairdocs.org/aircraft/N37516), registered now
- Make and model: Boeing 737-9
- Registry model: [Boeing 737-9](https://openairdocs.org/model/boeing-737-9) (OpenAirDocs)
- Aircraft serial: 43454
- Aircraft time: 19,249 hours, 6,378 cycles
- System (JASC): [5310 · Fuselage Main, Structure](https://openairdocs.org/jasc/5310)
- Part: Crossbeam
- Part number: 143A52403536
- Condition: Cracked
- Location: Zone 200
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2026090419248

## Discrepancy

CENTER SECTION UPPER CROSSBEAM AT BS 540 BL0 T CRACKED.   REMOVED AND REPLACED NEW CROSSBEAM IAW B737-9 SRM 51-40-02, 51-40-05 , DWG 143A5240 REV-.

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