# SDR CALA2021122902460

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 28, 2021
- Submitted: December 29, 2021
- Operation: Air carrier
- Aircraft: [N37434](https://openairdocs.org/aircraft/N37434), registered now
- Make and model: Boeing 737-900ER
- Registry model: [Boeing 737-900ER](https://openairdocs.org/model/boeing-737-900er) (OpenAirDocs)
- Aircraft serial: 33528
- Aircraft time: 36,047 hours, 12,781 cycles
- System (JASC): [5500 · Empennage Structure](https://openairdocs.org/jasc/5500)
- Part: Rib
- Part number: 182A5302
- Condition: Cracked
- Location: Rh Hor Stab
- 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/CALA2021122902460

## Discrepancy

(B737 -55-3-0239) RH HORIZONTAL STABLIZER INSPAR RIB AT STA 101.0 HAS CRACK AT FWD UPPER WEB EDGE WHERE IT MEETES THE T-CHORD. REF AAR NR 9644092 ACCOMPLISHED REPAIR AT RIGHT HORIZONTAL STAB AT STA 101.0 REF B737-900 SRM 51-40-02-0G-0 AND RES-WI 2017928-30 AND EC/RA 5510-03080 WORK ACCOMPLISHED BY V934372

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