# SDR P5CA2019092300193

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 21, 2019
- Submitted: September 23, 2019
- Operation: Air carrier
- Aircraft: [N858GT](https://openairdocs.org/aircraft/N858GT), registered now
- Make and model: Boeing 747-87UF
- Registry model: [Boeing 747-87UF](https://openairdocs.org/model/boeing-747-87uf) (OpenAirDocs)
- Aircraft serial: 37569
- Aircraft time: 33,423 hours, 5,395 cycles
- System (JASC): [5511 · Horizontal Stabilizer, Spar/Rib](https://openairdocs.org/jasc/5511)
- Part: Rib
- Part number: 65B0352110
- Condition: Cracked
- Location: Rt Horiz Stab
- 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/P5CA2019092300193

## Discrepancy

CRACK - FOUND RT HST TIP FAIRING RIB CRACKED AT STAB BL 435, YB410~YB430, TTL=2 EA. REMOVED THE DAMAGE RIBS IAW SRM 51-40-02 REV 28. INSTALLED THE NEW RIBS IAW SRM 51-40-02 REV 28, DWG NR 65B03521 SH6 AND SH7. JOB COMPLETED AND CONDITION CHECK NORMAL. OFF PART (PN: 65B03521Y12, SN: NSN)  CRACK LENGTH= 0.5", 5"

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