# SDR O2GA2021061151101

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 5, 2021
- Submitted: June 11, 2021
- Operation: Air carrier
- Aircraft: N511UP
- Make and model: Cessna 560XL
- Registry model: [Cessna 560XL](https://openairdocs.org/model/cessna-560xl) (OpenAirDocs)
- Aircraft serial: 5605637
- Aircraft time: 11,076 hours, 8,078 cycles
- System (JASC): [2910 · Hydraulic System, Main](https://openairdocs.org/jasc/2910)
- Part: Warning Light
- Condition: False Activation
- Location: Hyd System
- Stage of operation: DE
- How discovered: O
- Nature of condition: N
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/O2GA2021061151101

## Discrepancy

DURING DESCENT INTO KCCR CREW OBSERVED A STEADY ILLUMINATION OF THE LO HYD FLOW L LIGHT. CREW ELECTED TO DIVERT TO KOAK AFTER DISCUSSING THE POSSIBILITY OF NOT HAVING THRUST REVERSE CAPABILITY INTO A SHORT RUNWAY. EMERGENCY DECLARED BY ATC. LANDING WAS UNEVENTFUL. MAINTENANCE FOUND AIR IN THE HYDRAULIC RESERVOIR. SYSTEM WAS BLED AND SERVICE. NO DEFECTS NOTED. A SUCCESSFUL OPERATIONAL CHECK FLIGHT WAS PERFORMED. AIRCRAFT WAS RETURNED TO SERVICE.

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