# SDR EIA2006020

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 5, 2006
- Submitted: March 8, 2006
- Operation: Air carrier
- Aircraft: N478EV
- Make and model: Boeing 747-SR-46
- Registry model: [Boeing 747-SR-46](https://openairdocs.org/model/boeing-747-sr-46) (OpenAirDocs)
- Aircraft serial: 21033
- Aircraft time: 35,174 cycles
- System (JASC): [5711 · Wing Spar](https://openairdocs.org/jasc/5711)
- Part: Spar
- Condition: Cracked
- Location: Ws 1387-1391
- 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/EIA2006020

## Discrepancy

DURING B-CHECK, CRACK FOUND ON THE RT LWR FRONT SPAR CHORD FROM FSS 1387 - 1391 (LES 1422-1438).  REMOVED AFFECTED AREA AND REPLACED WITH SPLICE. THIS REPAIR IS LIMITED TO 135000 HOURS OR 38788 CYCLES WHICHEVER COMES FIRST, WAITING FOR FINAL REPAIR INFORMATION.

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