# SDR CALA2026060416804

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 29, 2026
- Submitted: June 4, 2026
- Operation: Air carrier
- Aircraft: [N45440](https://openairdocs.org/aircraft/N45440), registered now
- Make and model: Boeing 737924ER
- Aircraft serial: 33535
- Aircraft time: 52,790 hours, 18,878 cycles
- System (JASC): [5511 · Horizontal Stabilizer, Spar/Rib](https://openairdocs.org/jasc/5511)
- Part: Rib
- Part number: 182A53012
- Condition: Cracked
- Location: Zone 300
- 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/CALA2026060416804

## Discrepancy

RH HORIZONTAL STAB INBD SIDE OF RIB AT STAB STA. 92.70 IS CRACKED AT THE LOWER TRANSITION RADIUS OF THE NO 2 VERTICAL STIFFENER.   CUT AND REMOVED THE DAMAGE FROM THE RIB AND WEB AS SHOWN IN FIGURE 202 REPAIR 4 IAW SRM 55-10-09-2R-4. FABRICATED REPAIR PARTS -1 T-SECTION, -2 ANGLE AND -3 SHIMS 2EA AND INSTALLED REPAIR PARTS IAW SRM 55-10-09-2R-4 REPAIR 4.

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