# SDR ASAA2015032311088

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 23, 2015
- Submitted: March 25, 2015
- Operation: Air carrier
- Aircraft: [N508AS](https://openairdocs.org/aircraft/N508AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35691
- Aircraft time: 25,298 hours, 7,780 cycles
- System (JASC): [3442 · Weather Radar System](https://openairdocs.org/jasc/3442)
- Part: Radar
- Condition: Malfunctioned
- Location: Wx Sys
- Stage of operation: CL
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2015032311088

## Discrepancy

RADAR DISPLAYED FALSE TARGETS AND INCORRECT ATTENUATION BARS.  TARGETS APPEARED ON DEPARTURE BETWEEN 3000 AGL AND 15,000 FT.  RADAR WAS IN "WX+T", "AUTO" GAIN WAS AUTO.  ACTUAL WEATHER, SMALL CONVECTIVE CELLS, ON DEPARTURE WAS DEPICTED CORRECTLY.  FALSE TARGETS APPEARED IN A LINE AT THE 11:30 POSITION FROM 4-18 MILES WITH 3-4 MILE SPACING.  ACFT GROUNDED. CREW REPORTS FALSE TARGETS WENT AWAY AND WEATHER  OPERATED NORMALLY WITHOUT FAULTS REMAINDER OF FLIGHT.  PERFORMED WEATHER BITE REF FIM TASK 34-43, TASK 801, SEVERAL TIMES.  NO FAULTS NOTED.

---
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.