CL60 crew had antiskid failure.

Attributes
ACN	465019
Time
Date	200003
Day	Thu
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : hpn.airport
State Reference	NY
Altitude	agl single value : 0
Environment
Flight Conditions	VMC
Weather Elements	Turbulence Windshear
Light	Daylight
Aircraft 1
Operator	general aviation : corporate
Make Model Name	Challenger CL601
Operating Under FAR Part	Part 91
Navigation In Use	ils localizer & glide slope : 34
Flight Phase	descent : approach landing : roll
Route In Use	approach : instrument precision approach : visual
Flight Plan	IFR
Person 1
Affiliation	company : corporate
Function	flight crew : captain oversight : pic
Qualification	pilot : atp pilot : cfi pilot : multi engine pilot : instrument pilot : commercial
Experience	flight time last 90 days : 100 flight time total : 10000 flight time type : 4000
ASRS Report	465019
Person 2
Affiliation	company : corporate
Function	flight crew : first officer
Qualification	pilot : multi engine pilot : commercial pilot : instrument
Events
Anomaly	aircraft equipment problem : critical inflight encounter : turbulence inflight encounter : weather other anomaly other anomaly other
Independent Detector	other flight crewa other flight crewb
Resolutory Action	none taken : detected after the fact
Consequence	other other
Supplementary
Problem Areas	Aircraft Weather Flight Crew Human Performance
Primary Problem	Aircraft

Narrative:

Antiskid failed on gear down. Accomplished checklist. Landed antiskid off per checklist. On landing, left reverser was late to come out. I had to store and redeploy, at which time both reversers deployed correctly. On landing roll, blew four main tires resulting in damage to wheels and brakes. Airplane was stopped on runway on centerline, resulting in runway being closed for almost 4 hours while aircraft was removed from runway. Conditions on landing were turbulence, wind shear and gusty winds. Reported winds 'estimated 340 degrees at 18 gusting to 28.' wind shear alerts in progress. Reported loss of 10 KTS and gains of 10 KTS on final reported by several aircraft. Approach was normal and stabilized. Callback conversation with reporter revealed the following information: crew was flying a challenger 601-38 aircraft. Pilot reports that even though the anti skid switch was placed in the off position the wheels never unlocked. Skid marks were evident from wheel touchdown until the tires blew. The factory maintenance personnel did a complete change of all aircraft components, replaced the brakes, wheels and tires. No further problems have been encountered. The pilot states that nothing positive was found with the aircraft of the removed components. He was complimentary or the support provided by the factory.

Original NASA ASRS Text

Title: CL60 CREW HAD ANTISKID FAILURE.

Narrative: ANTISKID FAILED ON GEAR DOWN. ACCOMPLISHED CHECKLIST. LANDED ANTISKID OFF PER CHECKLIST. ON LNDG, L REVERSER WAS LATE TO COME OUT. I HAD TO STORE AND REDEPLOY, AT WHICH TIME BOTH REVERSERS DEPLOYED CORRECTLY. ON LNDG ROLL, BLEW FOUR MAIN TIRES RESULTING IN DAMAGE TO WHEELS AND BRAKES. AIRPLANE WAS STOPPED ON RWY ON CTRLINE, RESULTING IN RWY BEING CLOSED FOR ALMOST 4 HOURS WHILE ACFT WAS REMOVED FROM RWY. CONDITIONS ON LNDG WERE TURB, WIND SHEAR AND GUSTY WINDS. RPTED WINDS 'ESTIMATED 340 DEGS AT 18 GUSTING TO 28.' WIND SHEAR ALERTS IN PROGRESS. REPORTED LOSS OF 10 KTS AND GAINS OF 10 KTS ON FINAL RPTED BY SEVERAL ACFT. APCH WAS NORMAL AND STABILIZED. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: CREW WAS FLYING A CHALLENGER 601-38 ACFT. PLT REPORTS THAT EVEN THOUGH THE ANTI SKID SWITCH WAS PLACED IN THE OFF POS THE WHEELS NEVER UNLOCKED. SKID MARKS WERE EVIDENT FROM WHEEL TOUCHDOWN UNTIL THE TIRES BLEW. THE FACTORY MAINT PERSONNEL DID A COMPLETE CHANGE OF ALL ACFT COMPONENTS, REPLACED THE BRAKES, WHEELS AND TIRES. NO FURTHER PROBS HAVE BEEN ENCOUNTERED. THE PLT STATES THAT NOTHING POSITIVE WAS FOUND WITH THE ACFT OF THE REMOVED COMPONENTS. HE WAS COMPLIMENTARY OR THE SUPPORT PROVIDED BY THE FACTORY.

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.