A320 flight crew has electric power xfer problem during descent into ord.

Attributes
ACN	569825
Time
Date	200212
Day	Fri
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : grr.airport
State Reference	MI
Altitude	msl single value : 16000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zau.artcc
Operator	common carrier : air carrier
Make Model Name	A320
Operating Under FAR Part	Part 121
Navigation In Use	other
Flight Phase	descent : approach
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
ASRS Report	569825
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Events
Anomaly	aircraft equipment problem : less severe other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : primary plt display screens blank other flight crewa other flight crewb
Resolutory Action	none taken : anomaly accepted
Consequence	other
Supplementary
Problem Areas	Aircraft
Primary Problem	Aircraft

Narrative:

On descent, going through approximately 16000 ft, both my primary flight display and navigation display screens went blank. The first officer's screens also went blank in addition to both ECAM displays. After a few seconds, the screens returned. The autoplt and autothrottles also disconnected. I hand flew and handled ATC while the first officer worked the problems. I requested direct ord and landed uneventfully. The problem was, I believe, a hard fault of the generator #1. However, the bus tie was delayed in providing power to my side. I do not understand why the first officer's screens went blank. I did not declare an emergency after putting the APU on line and pwring all system. I do not believe that we violated any clearance instructions but am not certain.

Original NASA ASRS Text

Title: A320 FLC HAS ELECTRIC PWR XFER PROB DURING DSCNT INTO ORD.

Narrative: ON DSCNT, GOING THROUGH APPROX 16000 FT, BOTH MY PRIMARY FLT DISPLAY AND NAV DISPLAY SCREENS WENT BLANK. THE FO'S SCREENS ALSO WENT BLANK IN ADDITION TO BOTH ECAM DISPLAYS. AFTER A FEW SECONDS, THE SCREENS RETURNED. THE AUTOPLT AND AUTOTHROTTLES ALSO DISCONNECTED. I HAND FLEW AND HANDLED ATC WHILE THE FO WORKED THE PROBS. I REQUESTED DIRECT ORD AND LANDED UNEVENTFULLY. THE PROB WAS, I BELIEVE, A HARD FAULT OF THE GENERATOR #1. HOWEVER, THE BUS TIE WAS DELAYED IN PROVIDING PWR TO MY SIDE. I DO NOT UNDERSTAND WHY THE FO'S SCREENS WENT BLANK. I DID NOT DECLARE AN EMER AFTER PUTTING THE APU ON LINE AND PWRING ALL SYS. I DO NOT BELIEVE THAT WE VIOLATED ANY CLRNC INSTRUCTIONS BUT AM NOT CERTAIN.

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.