# SDR FXGA201304221321

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 22, 2013
- Submitted: April 1, 2014
- Operation: Air carrier
- Aircraft: N6174C
- Make and model: Doug DC-6A
- Registry model: [Doug DC-6A](https://openairdocs.org/model/douglas-dc-6a) (OpenAirDocs)
- Aircraft serial: 44075
- Aircraft time: 56,175 hours
- Engine: Pwa R2800CB3
- Propeller: Hamstd 43E60
- System (JASC): [5711 · Wing Spar](https://openairdocs.org/jasc/5711)
- Part: Spar Cap
- Condition: Corroded
- Location: Rt 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/FXGA201304221321

## Discrepancy

CORROSION ON LOWER CTR SPAR CAP AT RWS 177, REMOVED CORROSION.  PERFORMED VISUAL & HFEC INSPECTIONS, NO CORROSION DETECTED. FOUND WITHIN LIMITS IAW TO 1C-118A-3-1 APPENDIX III FIGURE C-2.  TREATED & PRIMED AREA FOR CORROSION PROTECTION.  APPLIED SEALANT FOR AERODYNAMIC SMOOTHNESS EO 1321.

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