EA30 incurs on active runway after brakes fail at sea.

Attributes
ACN	419833
Time
Date	199811
Day	Sat
Local Time Of Day	1801 To 2400
Place
Locale Reference	atc facility : sea airport : sea
State Reference	WA
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Light	Night
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	Widebody, Low Wing, 2 Turbojet Eng
Operating Under FAR Part	Part 121
Navigation In Use	Other Other
Flight Phase	ground other : taxi
Flight Plan	IFR
Aircraft 2
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Flight Phase	climbout : takeoff
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 100 flight time total : 15000 flight time type : 1000
ASRS Report	419833
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : commercial
Events
Anomaly	aircraft equipment problem : critical incursion : runway
Independent Detector	other flight crewa
Resolutory Action	none taken : unable
Consequence	Other
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	other

Narrative:

Landed on runway 16R in sea and cleared at taxiway north. We were told to hold short of runway 16L for departing traffic. As we were approaching the hold line, the first officer started the APU. An electrical problem caused several system failures to show on the ECAM (all pitot and turbine air temperature heat, yaw dampers, pitch trim, autothrottles, spoilers) and the brakes failed. I switched to the alternate brakes as we crossed the hold line and we stopped about 20-50 ft past it. An aircraft rotated well before our position and was not affected. Callback conversation with reporter revealed the following information: the reporter states that the APU start relay stuck. This caused a number of electrical faults. One of these faults activated the antiskid system to release all the main wheel brakes. The reporter also states that neither he nor the company maintenance department has heard of this occurring before. The reporter's action of switching to alternate brakes apparently would not have fixed the problem. The brakes returned to normal due to the stuck relay opening.

Original NASA ASRS Text

Title: EA30 INCURS ON ACTIVE RWY AFTER BRAKES FAIL AT SEA.

Narrative: LANDED ON RWY 16R IN SEA AND CLRED AT TXWY N. WE WERE TOLD TO HOLD SHORT OF RWY 16L FOR DEPARTING TFC. AS WE WERE APCHING THE HOLD LINE, THE FO STARTED THE APU. AN ELECTRICAL PROB CAUSED SEVERAL SYS FAILURES TO SHOW ON THE ECAM (ALL PITOT AND TURBINE AIR TEMP HEAT, YAW DAMPERS, PITCH TRIM, AUTOTHROTTLES, SPOILERS) AND THE BRAKES FAILED. I SWITCHED TO THE ALTERNATE BRAKES AS WE CROSSED THE HOLD LINE AND WE STOPPED ABOUT 20-50 FT PAST IT. AN ACFT ROTATED WELL BEFORE OUR POS AND WAS NOT AFFECTED. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE RPTR STATES THAT THE APU START RELAY STUCK. THIS CAUSED A NUMBER OF ELECTRICAL FAULTS. ONE OF THESE FAULTS ACTIVATED THE ANTISKID SYS TO RELEASE ALL THE MAIN WHEEL BRAKES. THE RPTR ALSO STATES THAT NEITHER HE NOR THE COMPANY MAINT DEPT HAS HEARD OF THIS OCCURRING BEFORE. THE RPTR'S ACTION OF SWITCHING TO ALTERNATE BRAKES APPARENTLY WOULD NOT HAVE FIXED THE PROB. THE BRAKES RETURNED TO NORMAL DUE TO THE STUCK RELAY OPENING.

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.