Regional jet aborts 2 takeoffs at iah due to generator problem.

Attributes
ACN	407465
Time
Date	199807
Day	Tue
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : iah
State Reference	TX
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : bna
Operator	common carrier : air carrier
Make Model Name	Challenger CL604
Operating Under FAR Part	Part 121
Navigation In Use	Other Other
Flight Phase	climbout : takeoff other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : cfi pilot : atp
Experience	flight time last 90 days : 120 flight time total : 8000 flight time type : 800
ASRS Report	407465
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument
Events
Anomaly	aircraft equipment problem : critical
Independent Detector	aircraft equipment other aircraft equipment : unspecified
Resolutory Action	flight crew : rejected takeoff
Consequence	Other
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	other

Narrative:

Upon thrust application for takeoff, we immediately received an electrical message. Closing the throttles and rolling to the next turnoff, we cleared the runway and assessed the problem -- one message had cleared itself and the other cleared in consultation with the checklist. The crew felt the messages were spurious or just momentary indication problems, and elected to attempt another takeoff as there were no mechanical irregularities. Again, the messages appeared at thrust application, at which time we returned to the gate to make a maintenance write-up and call dispatch and maintenance. The #1 generator was ultimately deferred.

Original NASA ASRS Text

Title: REGIONAL JET ABORTS 2 TKOFS AT IAH DUE TO GENERATOR PROB.

Narrative: UPON THRUST APPLICATION FOR TKOF, WE IMMEDIATELY RECEIVED AN ELECTRICAL MESSAGE. CLOSING THE THROTTLES AND ROLLING TO THE NEXT TURNOFF, WE CLRED THE RWY AND ASSESSED THE PROB -- ONE MESSAGE HAD CLRED ITSELF AND THE OTHER CLRED IN CONSULTATION WITH THE CHKLIST. THE CREW FELT THE MESSAGES WERE SPURIOUS OR JUST MOMENTARY INDICATION PROBS, AND ELECTED TO ATTEMPT ANOTHER TKOF AS THERE WERE NO MECHANICAL IRREGULARITIES. AGAIN, THE MESSAGES APPEARED AT THRUST APPLICATION, AT WHICH TIME WE RETURNED TO THE GATE TO MAKE A MAINT WRITE-UP AND CALL DISPATCH AND MAINT. THE #1 GENERATOR WAS ULTIMATELY DEFERRED.

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.