# SDR UPS00433335

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 15, 2000
- Submitted: July 12, 2000
- Operation: Air carrier
- Aircraft: N521UP
- Make and model: Boeing 747 212B
- Registry model: [Boeing 747 212B](https://openairdocs.org/model/boeing-747-212b) (OpenAirDocs)
- Aircraft serial: 21944
- Aircraft time: 62,800 hours, 15,449 cycles
- System (JASC): [5511 · Horizontal Stabilizer, Spar/Rib](https://openairdocs.org/jasc/5511)
- Part: Rib
- Condition: Cracked
- Location: Horizontal 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/UPS00433335

## Discrepancy

INSPECTION TYPE:C, TAIL CRACK IN LOWER CHORD ON RT HORIZONTAL STABILIZER T/E RIB AT STAB BL 380.  NEW RIB FABRICATED IAW E0145283 AND FITTED IAW SRM 51-30-02.

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