B737-700 flight crew reported suspect engine indications after engine shutdown post flight.

Attributes
ACN	1620074
Time
Date	201902
Local Time Of Day	1801-2400
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Light	Night
Aircraft 1
Make Model Name	B737-700
Operating Under FAR Part	Part 121
Flight Phase	Parked
Component
Aircraft Component	Engine Indications
Person 1
Function	First Officer Pilot Not Flying
Qualification	Flight Crew Multiengine Flight Crew Air Transport Pilot (ATP) Flight Crew Instrument
Experience	Flight Crew Last 90 Days 563 Flight Crew Type 4100
Events
Anomaly	Aircraft Equipment Problem Less Severe Deviation - Procedural Published Material / Policy

Narrative:

After engines were shut down for over ten minutes; we noticed that one engine displayed and fuel flow of zero; while the other engine showed no data whatsoever in those fields. The engines showed different data; not abnormal; just different. We called maintenance and he performed bite checks; which showed that one of the engines registered internal faults on our previous flights that day. The aircraft was removed from service to perform maintenance on the engine start switch. All operations and indications had been normal besides this discrepancy we noticed which prompted the maintenance call.

Original NASA ASRS Text

Title: B737-700 flight crew reported suspect engine indications after engine shutdown post flight.

Narrative: After engines were shut down for over ten minutes; we noticed that one engine displayed and fuel flow of zero; while the other engine showed no data whatsoever in those fields. The engines showed different data; not abnormal; just different. We called Maintenance and he performed BITE checks; which showed that one of the engines registered internal faults on our previous flights that day. The aircraft was removed from service to perform Maintenance on the engine start switch. All operations and indications had been normal besides this discrepancy we noticed which prompted the Maintenance call.

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.