Air carrier flight crew reported a rejected takeoff due to a thrust setting caution advisory.

Attributes
ACN	1754998
Time
Date	202008
Local Time Of Day	0601-1200
Place
Locale Reference	ZZZ.Airport
State Reference	US
Aircraft 1
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 121
Flight Phase	Other Rejected Takeoff
Flight Plan	IFR
Person 1
Function	Pilot Flying Captain
Qualification	Flight Crew Air Transport Pilot (ATP)
Person 2
Function	Pilot Not Flying First Officer
Qualification	Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	Aircraft Equipment Problem Less Severe Deviation - Procedural Published Material / Policy

Narrative:

Crew rejected the takeoff due to flex not set caution advisory during the takeoff roll. At initial thrust setting the #1 thrust lever would not seat properly in the flex detent. Ca adjusted the thrust lever and got proper indication that flex was set properly; first officer made the flex set call out. After accelerating through 80 knots the crew received a caution advisory that the thrust was not set; ca initiated a reject in response to the caution advisory. Crew returned to the gate for follow-up maintenance.after having reduced flying due to a limited flight schedule; there is a higher potential for errors; therefore as captain; I decided to take a more cautious approach and rejected the takeoff.suggestions - place more of an emphasis on rejected takeoff considerations during crew brief.

Original NASA ASRS Text

Title: Air carrier flight crew reported a rejected takeoff due to a thrust setting caution advisory.

Narrative: Crew rejected the takeoff due to FLEX not set Caution Advisory during the takeoff roll. At initial thrust setting the #1 thrust lever would not seat properly in the FLEX Detent. CA adjusted the thrust lever and got proper indication that FLEX was set properly; FO made the FLEX Set call out. After accelerating through 80 knots the crew received a caution advisory that the thrust was not set; CA initiated a reject in response to the caution advisory. Crew returned to the gate for follow-up maintenance.After having reduced flying due to a limited flight schedule; there is a higher potential for errors; therefore as Captain; I decided to take a more cautious approach and rejected the takeoff.Suggestions - Place more of an emphasis on rejected takeoff considerations during crew brief.

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.