# SDR ASAA2017061521081

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 15, 2017
- Submitted: June 17, 2017
- Operation: Air carrier
- Aircraft: [N566AS](https://openairdocs.org/aircraft/N566AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35182
- Aircraft time: 39,961 hours, 11,985 cycles
- System (JASC): [3442 · Weather Radar System](https://openairdocs.org/jasc/3442)
- Part: Radar
- Condition: Malfunctioned
- Location: Wx System
- Stage of operation: NR
- 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/ASAA2017061521081

## Discrepancy

RADAR SHOWS ERRONEOUS RETURNS IN AUTO MODE. IT IS SHAPED LIKE A CRESCENT ON THE 2 TO 3 OCLOCK POSITION.  NORMAL RETURNS IN MANUAL MODE.  ACFT GROUNDED. PERFORMED WEATHER RADAR OPS TEST. NO DEFECTS NOTED. OPS CHECKED GOOD.  INTERMITTENT FAULT IAW FIM 34-43 TASK 801.  NO HISTORY LAST 30 DAYS.

---
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.