# SDR IPXA2019032840540

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 28, 2019
- Submitted: March 29, 2019
- Operation: Air carrier
- Aircraft: [N580UP](https://openairdocs.org/aircraft/N580UP), registered now
- Make and model: Boeing 747428F
- Aircraft serial: 25632
- Aircraft time: 101,727 hours, 17,398 cycles
- System (JASC): [5711 · Wing Spar](https://openairdocs.org/jasc/5711)
- Part: Spar
- Part number: 112U20073
- Condition: Cracked
- Location: Lt Wing
- 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/IPXA2019032840540

## Discrepancy

INSPECTION TYPE:D2 CRACK WAS FOUND ON FASTENER HOLE ON FRONT SPAR WEB (P/N: 112U2007-3) OF LT WING FSSI 655.72 WHEN PERFORM 747-SB-57A2357.REPAIR IAW SRID: 3-4407802419 AND EO B747-5710-71777-B.

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