B737 flight crew reported number engine low N2 during takeoff roll and subsequent crew response to a...

Attributes
ACN	1739089
Time
Date	202004
Local Time Of Day	1201-1800
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	VMC
Aircraft 1
Make Model Name	B737 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	Takeoff
Flight Plan	IFR
Component
Aircraft Component	RPM/N1/N2/Etc Indication
Person 1
Function	Pilot Flying First Officer
Qualification	Flight Crew Multiengine Flight Crew Instrument Flight Crew Air Transport Pilot (ATP)
Experience	Flight Crew Last 90 Days 82 Flight Crew Type 790
Person 2
Function	Captain Pilot Not Flying
Qualification	Flight Crew Air Transport Pilot (ATP) Flight Crew Instrument Flight Crew Multiengine
Experience	Flight Crew Last 90 Days 179
Events
Anomaly	Aircraft Equipment Problem Critical Deviation - Procedural Published Material / Policy

Narrative:

I was pilot flying and set thrust for take off; pressed the toga button to engage take off thrust; I noticed right thrust did not fully advance. I called for check thrust. Captain noticed that the no. 2 engine would not achieve takeoff thrust. He called 100 knots but I noticed he was heads down at the engine gauges and I called V1 I achieved vr and he called for a rejected takeoff. I said 'negative we are passed V1'. He pushed the thrust levers to full thrust and we rotated without incident. I disconnected autothrottles and was able to achieve climb thrust for the climb to cruise altitude. At cruise the captain called maintenance control to discuss the issue and they told us that the aircraft had a similar incident on [previous month]. We continued the flight without incident and debriefed the situation at cruise. We talked about the fact that we were such a light weight and the speeds V1 and vr came so much earlier than normal.

Original NASA ASRS Text

Title: B737 flight crew reported number engine low N2 during takeoff roll and subsequent crew response to an uneventful takeoff.

Narrative: I was pilot flying and set thrust for take off; pressed the TOGA button to engage take off thrust; I noticed right thrust did not fully advance. I called for check thrust. Captain noticed that the no. 2 engine would not achieve takeoff thrust. He called 100 knots but I noticed he was heads down at the engine gauges and I called V1 I achieved Vr and he called for a rejected takeoff. I said 'negative we are passed V1'. He pushed the thrust levers to full thrust and we rotated without incident. I disconnected autothrottles and was able to achieve climb thrust for the climb to cruise altitude. At cruise the Captain called Maintenance Control to discuss the issue and they told us that the aircraft had a similar incident on [previous month]. We continued the flight without incident and debriefed the situation at cruise. We talked about the fact that we were such a light weight and the speeds V1 and Vr came so much earlier than normal.

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.