B737 flight crew reported noting a low thrust condition on #2 engine during approach. Landing was ma...

Attributes
ACN	1247634
Time
Date	201503
Local Time Of Day	1801-2400
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Make Model Name	B737 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	Initial Approach
Route In Use	Visual Approach
Flight Plan	IFR
Component
Aircraft Component	Turbine Engine
Person 1
Function	Pilot Flying Captain
Qualification	Flight Crew Air Transport Pilot (ATP)
Experience	Flight Crew Last 90 Days 197 Flight Crew Type 12000
Person 2
Function	First Officer Pilot Not Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Experience	Flight Crew Last 90 Days 171
Events
Anomaly	Aircraft Equipment Problem Critical

Narrative:

As we turned a base leg to final for the visual approach to runway 28L; I advanced the thrust levers to maintain an assigned altitude of 3000 feet MSL. I noticed the number two engine was not spooling up to match the number one engine. After analyzing this problem I determined I could not get the engine to accelerate beyond 52 percent. We were now on final and I instructed the first officer to accomplish the engine failure in the landing configuration checklist and ensure we could land using flaps 15 on runway 28L. We ran the checklist and continued the visual approach. I landed the aircraft with the flaps 15 configuration without any further incident. The communication between the first officer and me was perfect; only due to the fact that we had the intercom switches locked into the talk positions. We discussed later how difficult and dangerous this situation would have been if we had not accomplished this configuration of the intercom system.

Original NASA ASRS Text

Title: B737 flight crew reported noting a low thrust condition on #2 engine during approach. Landing was made at reduced flap setting.

Narrative: As we turned a base leg to final for the Visual Approach to Runway 28L; I advanced the thrust levers to maintain an assigned altitude of 3000 feet MSL. I noticed the number two engine was not spooling up to match the number one engine. After analyzing this problem I determined I could not get the engine to accelerate beyond 52 percent. We were now on final and I instructed the First Officer to accomplish the Engine Failure in the Landing Configuration Checklist and ensure we could land using flaps 15 on Runway 28L. We ran the checklist and continued the visual approach. I landed the aircraft with the flaps 15 configuration without any further incident. The communication between the First Officer and me was perfect; only due to the fact that we had the intercom switches locked into the talk positions. We discussed later how difficult and dangerous this situation would have been if we had not accomplished this configuration of the intercom system.

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.