# SDR IPXA2021010964247

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 9, 2021
- Submitted: January 22, 2021
- Operation: Air carrier
- Aircraft: [N579UP](https://openairdocs.org/aircraft/N579UP), registered now
- Make and model: Boeing 747-45E
- Registry model: [Boeing 747-45E](https://openairdocs.org/model/boeing-747-45e) (OpenAirDocs)
- Aircraft serial: 26062
- Aircraft time: 108,225 hours, 18,094 cycles
- System (JASC): [5510 · Horizontal Stabilizer Structure](https://openairdocs.org/jasc/5510)
- Part: Web
- Part number: 65B0352060
- Condition: Cracked
- Location: Horizontal Stab
- 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/IPXA2021010964247

## Discrepancy

RH HORIZONTAL STAB TIP END RIB WEB FOUND CRACKED REQUIRES REPLACEMENT. REPLACED WEB WITH PRODUCTION PART INSTALLED PER SRM 51-40-02 & 51-40-04.

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