An emb-145 EICAS alerted E1 thrust reverse disagree at about 90 KTS during takeoff so the captain re...

Attributes
ACN	1043032
Time
Date	201210
Local Time Of Day	0001-0600
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Light	Night
Aircraft 1
Make Model Name	EMB ERJ 145 ER/LR
Operating Under FAR Part	Part 121
Flight Phase	Takeoff
Flight Plan	IFR
Component
Aircraft Component	Turbine Reverser
Person 1
Function	Pilot Not Flying First Officer
Qualification	Flight Crew Air Transport Pilot (ATP)
Person 2
Function	Pilot Flying Captain
Qualification	Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	Aircraft Equipment Problem Less Severe

Narrative:

Everything [was] normal up to takeoff roll; after calling 80 KTS; [we had a] E1 thrust reverse disagree [EICAS] (90 KTS) caution followed by takeoff configuration warning alarm. I called the annunciation and the captain called for the abort. I immediately let tower know and told the passengers to remain seated. Once off the active; the captain called for the aborted takeoff checklist completed. The captain then called maintenance while I explained the situation to the passengers and flight attendant. We worked with operations/dispatch for the gate return and contract maintenance took it from there. The largest threat was it being very early morning and an aborted takeoff was the last thing expected. All parties handled the situation according to company policy/checklists and the passengers were informed every step of the way.

Original NASA ASRS Text

Title: An EMB-145 EICAS alerted E1 THRUST REVERSE DISAGREE at about 90 KTS during takeoff so the Captain rejected the takeoff; completed the checklist and returned to the gate for maintenance.

Narrative: Everything [was] normal up to takeoff roll; after calling 80 KTS; [we had a] E1 THRUST REVERSE DISAGREE [EICAS] (90 KTS) caution followed by Takeoff Configuration Warning alarm. I called the annunciation and the Captain called for the abort. I immediately let Tower know and told the passengers to remain seated. Once off the active; the Captain called for the aborted Takeoff Checklist completed. The Captain then called Maintenance while I explained the situation to the passengers and Flight Attendant. We worked with Operations/Dispatch for the gate return and Contract Maintenance took it from there. The largest threat was it being very early morning and an aborted takeoff was the last thing expected. All parties handled the situation according to company policy/checklists and the passengers were informed every step of the way.

Data retrieved from NASA's ASRS site as of July 2013 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.

An emb-145 EICAS alerted E1 thrust reverse disagree at about 90 KTS during takeoff so the captain rejected the takeoff; completed the checklist and returned to the gate for maintenance.