First officer's seat slid back during first part of takeoff roll. Throttles came briefly out of take...

Attributes
ACN	1346343
Time
Date	201604
Local Time Of Day	1801-2400
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Light	Daylight
Aircraft 1
Make Model Name	Regional Jet 700 ER/LR (CRJ700)
Operating Under FAR Part	Part 121
Flight Phase	Takeoff
Flight Plan	IFR
Component
Aircraft Component	Pilot Seat
Person 1
Function	Pilot Not Flying Captain
Qualification	Flight Crew Air Transport Pilot (ATP)
Person 2
Function	First Officer Pilot Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	Aircraft Equipment Problem Less Severe

Narrative:

During takeoff the first officer's seat moved aft several detents after he introduced takeoff go around (toga) (flex) thrust and the engines spooled up. As a result of his seat moving backwards; the thrust levers came out of toga into the climb detent. After acknowledging the issue we quickly transferred controls; and I pushed the thrust levers back into the toga detent. We elected to continue rather than perform a high speed rejected takeoff. After the after takeoff checklist was completed; the first officer was able to determine that his seat position adjustment lever had not fully engaged into one of the detented positions; but he was able to push the lever down and thereby lock the seat into a detented position. We chose to continue to our destination and called maintenance about the issue upon arrival.

Original NASA ASRS Text

Title: First Officer's seat slid back during first part of takeoff roll. Throttles came briefly out of Takeoff Go Around (TOGA) settings; but were quickly re-set.

Narrative: During takeoff the First Officer's seat moved aft several detents after he introduced Takeoff Go Around (TOGA) (Flex) thrust and the engines spooled up. As a result of his seat moving backwards; the thrust levers came out of TOGA into the climb detent. After acknowledging the issue we quickly transferred controls; and I pushed the thrust levers back into the TOGA detent. We elected to continue rather than perform a high speed rejected takeoff. After the after takeoff checklist was completed; the First Officer was able to determine that his seat position adjustment lever had not fully engaged into one of the detented positions; but he was able to push the lever down and thereby lock the seat into a detented position. We chose to continue to our destination and called maintenance about the issue upon arrival.

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.

First officer's seat slid back during first part of takeoff roll. Throttles came briefly out of takeoff go around (toga) settings; but were quickly re-set.