# SDR AALA202207279512

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 22, 2022
- Submitted: July 27, 2022
- Operation: Air carrier
- Aircraft: [N846NN](https://openairdocs.org/aircraft/N846NN), registered now
- Make and model: Boeing 737
- Aircraft serial: 31101
- Aircraft time: 36,099 hours, 15,060 cycles
- System (JASC): [5511 · Horizontal Stabilizer, Spar/Rib](https://openairdocs.org/jasc/5511)
- Part: Rib
- Condition: Cracked
- Location: Zone 300 - Stabs
- 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/AALA202207279512

## Discrepancy

AIRCRAFT IN BASE MAINTENANCE: CRACK INDICATION IN RIB STIFFENER LOWER 4TH RISER FROM THE FRONT SPAR. INSTALLED RIB REPAIR ANGLE PER SRM 55-10-00-2.

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