Runway excursion. - NASA ASRS

Attributes
ACN	227916
Time
Date	199212
Day	Sat
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : bwi
State Reference	MD
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	Medium Transport, High Wing, 2 Turboprop Eng
Flight Phase	landing 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 : 250 flight time total : 9000 flight time type : 4000
ASRS Report	227916
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 anomaly other other anomaly other other spatial deviation
Independent Detector	other flight crewa
Resolutory Action	none taken : unable
Consequence	Other
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	Pilot Deviation other

Narrative:

We landed in bwi on 33R with winds approximately 280-300 degree at 28 KTS. Landing was normal, on rollout as aircraft decelerated below 30 KTS, the nose started to veer to the left. I tried to steer right with the tiller, but there was no response from nose steering. I then applied toe brakes only to find they had failed also. I applied the emergency brake and brought the aircraft to a stop with the left main wheels about 1 ft off the pavement. The runway was closed approximately 50 min while aircraft was towed to gate. Maintenance found a fault in pseu of the mdt. The fault was on the circuit board that controls anti-skid (brakes).

Original NASA ASRS Text

Title: RWY EXCURSION.

Narrative: WE LANDED IN BWI ON 33R WITH WINDS APPROX 280-300 DEG AT 28 KTS. LNDG WAS NORMAL, ON ROLLOUT AS ACFT DECELERATED BELOW 30 KTS, THE NOSE STARTED TO VEER TO THE L. I TRIED TO STEER R WITH THE TILLER, BUT THERE WAS NO RESPONSE FROM NOSE STEERING. I THEN APPLIED TOE BRAKES ONLY TO FIND THEY HAD FAILED ALSO. I APPLIED THE EMER BRAKE AND BROUGHT THE ACFT TO A STOP WITH THE L MAIN WHEELS ABOUT 1 FT OFF THE PAVEMENT. THE RWY WAS CLOSED APPROX 50 MIN WHILE ACFT WAS TOWED TO GATE. MAINT FOUND A FAULT IN PSEU OF THE MDT. THE FAULT WAS ON THE CIRCUIT BOARD THAT CTLS ANTI-SKID (BRAKES).

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.