B737-400 captain reports an engine failure in the traffic pattern while conducting flight testing of...

Narrative:

We are performing flight testing of a new concept in-flight system (not related to power-plant or failure experienced). The mission required us to perform low level passes at various aircraft configurations over [the runway] at 200 ft AGL. Prior tower coordination occurred and the operations were authorized. We were operating VFR in left closed traffic at the time of the incident. On downwind turning base; (190 KIAS; gear up; flaps 1) we experienced an N1 and N2 rollback on engine 1 accompanied by a high egt (approximately 900-996 degrees C). We shut down and secured engine 1; configured to gear down; flaps 15; notified the tower of the situation; and performed a visual single engine landing to a full stop and exited the runway. We were met by arff equipment on the parallel taxiway and shut down the engines. Upon visual inspection; no external defects and no fire was noted to the engines or airframe. The aircraft was towed back to the hangar for inspection and maintenance. There were no injuries and no damage to equipment or property nor was there any closure to the runway; taxiways; or facilities.

Original NASA ASRS Text

Title: B737-400 Captain reports an engine failure in the traffic pattern while conducting flight testing of in flight systems not related to the engine failure. The failed engine is secured and a single engine approach and landing ensues.

Narrative: We are performing flight testing of a new concept in-flight system (not related to power-plant or failure experienced). The mission required us to perform low level passes at various aircraft configurations over [the runway] at 200 FT AGL. Prior Tower coordination occurred and the operations were authorized. We were operating VFR in left closed traffic at the time of the incident. On downwind turning base; (190 KIAS; Gear UP; Flaps 1) we experienced an N1 and N2 Rollback on Engine 1 accompanied by a high EGT (Approximately 900-996 degrees C). We shut down and secured ENG 1; configured to GEAR DOWN; Flaps 15; notified the Tower of the situation; and performed a visual single engine landing to a full stop and exited the runway. We were met by ARFF equipment on the parallel taxiway and shut down the engines. Upon visual inspection; no external defects and no fire was noted to the engines or airframe. The aircraft was towed back to the hangar for inspection and maintenance. There were no injuries and no damage to equipment or property nor was there any closure to the runway; taxiways; or facilities.

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.

Attributes
ACN	1131250
Time
Date	201311
Local Time Of Day	1201-1800
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	B737-400
Operating Under FAR Part	Part 91
Flight Phase	Final Approach
Route In Use	Visual Approach
Flight Plan	None
Component
Aircraft Component	Turbine Engine
Person 1
Function	Pilot Flying Captain
Qualification	Flight Crew Air Transport Pilot (ATP) Flight Crew Multiengine
Experience	Flight Crew Last 90 Days 60 Flight Crew Total 11000 Flight Crew Type 750
Events
Anomaly	Aircraft Equipment Problem Critical

B737-400 captain reports an engine failure in the traffic pattern while conducting flight testing of in flight systems not related to the engine failure. The failed engine is secured and a single engine approach and landing ensues.