# SDR UPS04443113

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 17, 2004
- Submitted: September 15, 2004
- Operation: Air carrier
- Aircraft: N520UP
- Make and model: Boeing 747-200
- Registry model: [Boeing 747-200](https://openairdocs.org/model/boeing-747-200) (OpenAirDocs)
- Aircraft serial: 21943
- Aircraft time: 77,131 hours, 17,128 cycles
- Engine: Pwa JT9D7Q
- System (JASC): [5714 · Wing, Center Box](https://openairdocs.org/jasc/5714)
- Part: Shear Tie
- Condition: Cracked
- Location: Ctr Tank
- 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/UPS04443113

## Discrepancy

INSPECTION TYPE:  C, CTR TANK FRONT SPAR UPPER CHORD SHEAR TIE FOUND CRACKED AT LBL 35 INCH CTR TANK FRONT SPAR UPPER CHORD, SHEAR TIE REPLACED AT LBL 35 INCH IAW SRM 51-10-01 PG 8.

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