# SDR SWAA2024100732999

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 31, 2024
- Submitted: October 7, 2024
- Operation: Air carrier
- Aircraft: [N489WN](https://openairdocs.org/aircraft/N489WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 33855
- Aircraft time: 63,611 hours, 38,095 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/SWAA2024100732999

## Discrepancy

R/H HRZ STB L/E (341B) LOWER AFT OF THE RIB #3 HAS A CRACK (228-001)<[01] ***SUMMARY***<BR>REMOVED R/H HRZ STB L/E RIB #3 AS PER B-737 SRM 51-40-02-0G-0<BR>LOCATED AND DRILLED NEW #3 RIB AS PER B-737 SRM 51-40-05-0G-0<BR>INSTALLED NEW #3 RIB AT R/H HRZ STB L/E AS PER DWG 186A1303 & SRM 51-40-02-0G<BR>APPLIED SEALANT PN: 0870B002BM ON 09/04/2024 AT 10:00 PM<BR>SQUEEZE OUT TIME: 12:00 AM ON 09/05/2024;[02] VERIFIED STEP # 1

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