# SDR SWAA2023090588833

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 13, 2023
- Submitted: September 5, 2023
- Operation: Air carrier
- Aircraft: [N449WN](https://openairdocs.org/aircraft/N449WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 32469
- Aircraft time: 65,862 hours, 39,346 cycles
- System (JASC): [5510 · Horizontal Stabilizer Structure](https://openairdocs.org/jasc/5510)
- Part: Rib
- Part number: UNKNOWN
- Condition: Cracked
- Location: Zn 300 Stabilize
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA2023090588833

## Discrepancy

CRACK INSPAR RIB LOCATED STAB STA 120.30 AND 18 INCHES FROM FRONT EDGE AT LT HORIZONTAL STABILIZER 2023-477861<[01] TOOL USED: EDDY CURRENT FLAW DETECTOR; P/N: NORTEC 600 D; S/N: 60009161631; DUE DATE: 31-JAN-24.;[02] TOOL USED: EDDY CURRENT FLAW DETECTOR; P/N: NORTEC 600 D; S/N: 60009161631; DUE DATE: 31-JAN-24.;[03] REPAIRED INSPAR RIB LOCATED STAB STA 120.30 AND 18 INCHES FROM FRONT EDGE AT LT HORIZONTAL STABILIZER IAW B737-700 SRM 55-10-09-2R-4 REPAIR 4 PARAGRAPH 4 REPAIR INSTRUCTIONS <BR>SEE INDIVIDUAL SIGN-OFF BELOW;[04] CERTIFIED STEP 3 COMPLETED <BR>RII

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