# SDR O2GA2020100550201

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 29, 2020
- Submitted: October 5, 2020
- Operation: Air carrier
- Aircraft: [N502UP](https://openairdocs.org/aircraft/N502UP), registered now
- Make and model: Cessna 560XL
- Registry model: [Cessna 560XL](https://openairdocs.org/model/cessna-560xl) (OpenAirDocs)
- Aircraft serial: 5605310
- Aircraft time: 12,653 hours, 9,101 cycles
- System (JASC): [2841 · Fuel Quantity Indicator](https://openairdocs.org/jasc/2841)
- Part: Indicator
- Condition: Reads Low
- Location: Fuel Qty
- Stage of operation: CL
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/O2GA2020100550201

## Discrepancy

SHORTLY AFTER TAKE-OFF THE RIGHT FUEL GAUGE ROLLED BACK RAPIDLY TO 500 LBS LOWER THAN THE LEFT SIDE.  THE MASTER CAUTION WARNING LIGHT ASSOCIATED WITH THE RIGHT FUEL GAUGE LIGHT ILLUMINATED.  EMERGENCY WAS DECLARED AND DIVERTED TO ALTERNATE AIRPORT WITH LONGER RUNWAY.  LANDING WAS UNEVENTFUL.  MAINTENANCE SUMPED THE FUEL TANKS, PERFORMED AN AIRCRAFT OVERWEIGHT LANDING INSPECTION AND DEFERRED THE FUEL QUANTITY SYSTEM PER  MEL.  FURTHER TROUBLESHOOTING AND OPERATIONAL CHECK WAS PERFORMED OF THE FUEL QUANTITY SYSTEM, WITH NO DEFECTS NOTED.  AN OPERATIONAL CHECK FLIGHT (OCF) WAS PERFORMED WITH NO DEFECTS NOTED.  AIRCRAFT WAS RETURNED TO SERVICE.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.