# SDR B4VR201706010001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 31, 2017
- Submitted: June 1, 2017
- Operation: General aviation
- Filed by: [CAE Oxford Aviation Academy Phoenix Inc, repair station B4VR470K](https://openairdocs.org/faa-repair-station/B4VR470K/cae-oxford-aviation-academy-phoenix-inc.md) (OpenAirDocs)
- Aircraft: N4139B
- Make and model: Diamon DA 40
- Registry model: [Diamon DA 40](https://openairdocs.org/model/diamond-aircraft-ind-da-40) (OpenAirDocs)
- Aircraft serial: 40770
- Aircraft time: 9,630 hours
- System (JASC): [5711 · Wing Spar](https://openairdocs.org/jasc/5711)
- Part: Spar
- Condition: Cracked
- Location: Main Thru
- Part time: 9,630 hours
- 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/B4VR201706010001

## Discrepancy

MULTIPLE SUBSURFACE CRACKS ALONG THE AFT, MAIN CARRY THROUGH SPAR ON THE FORWARD SURFACE BOTH RIGHT AND LEFT SIDES.  CRACKS RANGE FROM .5 TO 3 INCHES AND COVER MOST OF THE FACE OF THE SPAR.

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