B737 first officer reported that the aircraft weather radar was left on overnight.

Attributes
ACN	1704352
Time
Date	201911
Place
Locale Reference	ZZZ.Airport
State Reference	US
Aircraft 1
Make Model Name	B737 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	Parked
Flight Plan	IFR
Component
Aircraft Component	Weather Radar
Person 1
Function	First Officer
Qualification	Flight Crew Multiengine Flight Crew Air Transport Pilot (ATP) Flight Crew Instrument
Experience	Flight Crew Last 90 Days 129 Flight Crew Total 2586 Flight Crew Type 2586
Events
Anomaly	Aircraft Equipment Problem Less Severe Deviation - Procedural Published Material / Policy Ground Event / Encounter Other / Unknown

Narrative:

Arriving at the aircraft during powering up for first flight off the day during preflight discovered the weather radar was left on. Not sure how it got left on at the gate since it was an overnighting aircraft and we just arrived to it. Radar was turned off and continued on with other preflight duties.

Original NASA ASRS Text

Title: B737 First Officer reported that the aircraft weather radar was left on overnight.

Narrative: Arriving at the aircraft during powering up for first flight off the day during preflight discovered the weather radar was left on. Not sure how it got left on at the gate since it was an overnighting aircraft and we just arrived to it. Radar was turned off and continued on with other preflight duties.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.