# SDR SWAA2025043054323

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 25, 2025
- Submitted: April 30, 2025
- Operation: Air carrier
- Aircraft: [N221WN](https://openairdocs.org/aircraft/N221WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 34259
- Aircraft time: 65,130 hours, 38,662 cycles
- System (JASC): [5511 · Horizontal Stabilizer, Spar/Rib](https://openairdocs.org/jasc/5511)
- Part: Rib
- 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/SWAA2025043054323

## Discrepancy

CRACK ON INSPAR RIB LOCATED STAB STA 120.30 AND 28 INCHES FROM FRONT SPAR LT HORIZONTAL STAB 2025-224224<[01] TOOL USED IN STEP 5: ET EQUIPMENT; P/N: NORTEC 600D; S/N: 200053402 DUE DATE: 16-SEP-25. ELECTRONIC CALIPER P/N: 500-196-30 S/N: A23048253 DUE DATE: 05-JUN-25.;[02] TOOL USED IN STEP 6: ET EQUIPMENT; P/N: NORTEC 600D; S/N: 200053402 DUE DATE: 16-SEP-25;[03] TOOL USED ON STEP 8 AND 9: EDDY CURRENT EQUIPMENT P/N: NORTEC 600D S/N: 210138103 DUE DATE: 28-JAN-26;[04] REPAIRED INSPAR RIB LOCATED STAB STA 120.30 AND 28 INCHES FROM FRONT SPAR LT HORIZONTAL STAB IAW SRM B737-700 55-10-09-2R-5 REPAIR 5; SEE INDIVIDUAL SIGNOFF BELOW.;[05] TASK COMPLETED ; RII <BR>SEE INDIVIDUAL SIGNOFF BELOW.

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