# SDR JGVR20180126004

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 26, 2018
- Submitted: January 26, 2018
- Operation: Air carrier
- Filed by: [Duncan Aviation Inc, repair station JGVR194F](https://openairdocs.org/faa-repair-station/JGVR194F/duncan-aviation-inc.md) (OpenAirDocs)
- Aircraft: N378QS
- Make and model: Cessna 680CE
- Aircraft serial: 6800103
- Aircraft time: 9,758 hours, 6,361 cycles
- System (JASC): [5512 · Horizontal Stabilizer, Plate/Skin](https://openairdocs.org/jasc/5512)
- Part: Skin
- Condition: Corroded
- Location: Horizontal Stab
- 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/JGVR20180126004

## Discrepancy

CORROSION ON TOP OF LT HORIZONTAL STAB PANEL 351AC.    REMOVED MINOR CORROSION.  PERFORMED AN EDDY CURRENT CHECK OF BLENDED AREA.  INSPECTION REVEALED NO CRACKS OR CORROSION INDICATIONS. PERFORMED AN ULTRASONIC THICKNESS CHECK ON BLENDED AREA. READINGS WERE RECORDED ON BLENDED AREAS FOR FURTHER EVALUATION. APPLIED PROTECTIVE TREATMENT TO BARE METAL.   CORROSION DETERMINED TO BE BEYOND LIMITS.  BLENDED CORROSION AND POLISHED AREA TO 20:1 RATIO AND VERIFIED SURFACE CRACK AND CORROSION FREE.  WORK PERFORMED IAW DQ10937M1.

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