Erj-175 flight crew reported that after 80 kts; EICAS message engine tla not toga appeared; causing ...

Attributes
ACN	1687385
Time
Date	201908
Local Time Of Day	0001-0600
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	VMC
Light	Dawn
Aircraft 1
Make Model Name	EMB ERJ 170/175 ER/LR
Operating Under FAR Part	Part 121
Flight Phase	Takeoff
Flight Plan	IFR
Component
Aircraft Component	Autothrottle/Speed Control
Person 1
Function	Pilot Flying First Officer
Qualification	Flight Crew Multiengine Flight Crew Instrument Flight Crew Air Transport Pilot (ATP)
Experience	Flight Crew Total 1400
Person 2
Function	Captain Pilot Not Flying
Qualification	Flight Crew Air Transport Pilot (ATP) Flight Crew Multiengine Flight Crew Instrument
Events
Anomaly	Aircraft Equipment Problem Less Severe Deviation - Procedural Maintenance

Narrative:

After being cleared for takeoff and aligned on the runway; the first officer took control of the aircraft; pushed the throttles up approximately 40% and checked even spool up. After an increase in throttles the autothrottles caught and increased thrust to N1 target. The pilot flying said 'check thrust'; the pilot monitoring said 'thrust checks'. Shortly thereafter (below 80 kts.) the EICAS message 'engine tla not toga' (amber) appeared and the master caution illuminated. The captain called for the rejected take off and took control of the aircraft. We brought the aircraft to a stop and exited the runway. We taxied back to the ramp. One maintenance employee boarded the aircraft and ran an autotrottle diagnostic. He said he did not find any issues. We refueled; took off; and flew without further incident to our destination. The EICAS message display and alert sound below 80 kts. Caused the crew to abort the takeoff in accordance with the takeoff briefing. Maintenance was not able to duplicate the problem and the subsequent takeoff was successful. I cannot diagnose a root cause for this incident.

Original NASA ASRS Text

Title: ERJ-175 flight crew reported that after 80 kts; EICAS message ENG TLA not TOGA appeared; causing a rejected takeoff and return to gate for Maintenance.

Narrative: After being cleared for takeoff and aligned on the runway; the First Officer took control of the aircraft; pushed the throttles up approximately 40% and checked even spool up. After an increase in throttles the autothrottles caught and increased thrust to N1 Target. The Pilot Flying said 'Check Thrust'; The Pilot Monitoring said 'Thrust Checks'. Shortly thereafter (below 80 kts.) the EICAS message 'ENG TLA not TOGA' (Amber) appeared and the master caution illuminated. The Captain called for the rejected take off and took control of the aircraft. We brought the aircraft to a stop and exited the runway. We taxied back to the ramp. One Maintenance employee boarded the aircraft and ran an autotrottle diagnostic. He said he did not find any issues. We refueled; took off; and flew without further incident to our destination. The EICAS message display and alert sound below 80 kts. caused the crew to abort the takeoff in accordance with the takeoff briefing. Maintenance was not able to duplicate the problem and the subsequent takeoff was successful. I cannot diagnose a root cause for this incident.

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.

Erj-175 flight crew reported that after 80 kts; EICAS message engine tla not toga appeared; causing a rejected takeoff and return to gate for maintenance.