A B737-400 on a maintenance ferry flight at FL330 when testing the engines for suction fuel feed had the right engine roll back to idle.

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Attributes
ACN	600979
Time
Date	200311
Day	Sun
Place
Locale Reference	navaid : zzz.vor
State Reference	US
Altitude	msl single value : 33000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zzz.artcc tower : cvg.tower
Operator	common carrier : air carrier
Make Model Name	B737-400
Operating Under FAR Part	Part 121
Flight Phase	cruise : level
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : multi engine pilot : commercial pilot : instrument
ASRS Report	600979
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Events
Anomaly	aircraft equipment problem : critical
Independent Detector	aircraft equipment other aircraft equipment : right eng n indicator other flight crewa other flight crewb
Resolutory Action	none taken : anomaly accepted
Consequence	other other
Supplementary
Problem Areas	Flight Crew Human Performance Aircraft Environmental Factor
Primary Problem	Aircraft

Narrative:

Flight test engineering crew on maintenance ferry. Troubleshooting for information regarding engine flameout due to suction feed after electrical problem. Did successfully suction feed on suspect engine. Tried #2 and had engine roll back to idle. Restored boost pump pressure and engine operated normally. Asked for expedited handling to ZZZ due to previous electrical problem that failed all boost pumps. Normal approach and landing.

Original NASA ASRS Text

Title: A B737-400 ON A MAINT FERRY FLT AT FL330 WHEN TESTING THE ENGS FOR SUCTION FUEL FEED HAD THE R ENG ROLL BACK TO IDLE.

Narrative: FLT TEST ENGINEERING CREW ON MAINT FERRY. TROUBLESHOOTING FOR INFO REGARDING ENG FLAMEOUT DUE TO SUCTION FEED AFTER ELECTRICAL PROB. DID SUCCESSFULLY SUCTION FEED ON SUSPECT ENG. TRIED #2 AND HAD ENG ROLL BACK TO IDLE. RESTORED BOOST PUMP PRESSURE AND ENG OPERATED NORMALLY. ASKED FOR EXPEDITED HANDLING TO ZZZ DUE TO PREVIOUS ELECTRICAL PROB THAT FAILED ALL BOOST PUMPS. NORMAL APCH AND LNDG.

Data retrieved from NASA's ASRS site as of July 2007 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.