An air carrier medium large transport flight crew experiences right engine performance fluctuations during their climb out. The flight crew returns to dtw where it was discovered that the fuel controller had failed.

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Attributes
ACN	374856
Time
Date	199707
Day	Wed
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : vwv airport : dtw
State Reference	OH
Altitude	msl bound lower : 18000 msl bound upper : 18000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zob tracon : dtw tower : dtw
Operator	common carrier : air carrier
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 121
Flight Phase	climbout : intermediate altitude other other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 220 flight time total : 15200 flight time type : 12000
ASRS Report	374856
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : commercial
Events
Anomaly	aircraft equipment problem : critical other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified other flight crewa
Resolutory Action	flight crew : declared emergency other
Consequence	Other
Supplementary
Primary Problem	Aircraft

Narrative:

During climb, right engine EPR started fluctuating. Approximately 1.2 - 1.4 EPR with corresponding fluctuations in N1, N2, and fuel flow. We advised ATC that we needed to return to dtw. Although an emergency was not declared, the emergency equipment was called out and we were given priority handling. Due to time constraints, dispatch was not called and an amended release was not received. We landed back in dtw uneventfully. Later we found that the fuel control suffered an internal failure.

Original NASA ASRS Text

Title: AN ACR MLG FLC EXPERIENCES R ENG PERFORMANCE FLUCTUATIONS DURING THEIR CLBOUT. THE FLC RETURNS TO DTW WHERE IT WAS DISCOVERED THAT THE FUEL CTLR HAD FAILED.

Narrative: DURING CLB, R ENG EPR STARTED FLUCTUATING. APPROX 1.2 - 1.4 EPR WITH CORRESPONDING FLUCTUATIONS IN N1, N2, AND FUEL FLOW. WE ADVISED ATC THAT WE NEEDED TO RETURN TO DTW. ALTHOUGH AN EMER WAS NOT DECLARED, THE EMER EQUIP WAS CALLED OUT AND WE WERE GIVEN PRIORITY HANDLING. DUE TO TIME CONSTRAINTS, DISPATCH WAS NOT CALLED AND AN AMENDED RELEASE WAS NOT RECEIVED. WE LANDED BACK IN DTW UNEVENTFULLY. LATER WE FOUND THAT THE FUEL CTL SUFFERED AN INTERNAL FAILURE.

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.