Flight crew experienced a system failure which rendered nose wheel steering inoperative.

Attributes
ACN	1337059
Time
Date	201603
Local Time Of Day	1201-1800
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Light	Daylight
Aircraft 1
Make Model Name	Medium Transport Low Wing 2 Turbojet Eng
Operating Under FAR Part	Part 121
Flight Phase	Descent Landing
Flight Plan	IFR
Component
Aircraft Component	Squat Switch
Person 1
Function	Captain Pilot Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	Aircraft Equipment Problem Critical Ground Event / Encounter Other / Unknown

Narrative:

On initial descent for ZZZ; we received a 'wow input' (weight-on-wheels) caution message accompanied by a 'proximity system fault' (proximity system fault) status message on the cockpit EICAS displays. We were advised by the QRH for this particular failure that our nose wheel steering may not be available upon landing.not knowing whether or not our nose wheel steering would be available and in what direction our nose wheel might be pointing upon touchdown; led me to [expedite] our arrival into ZZZ. I advised the flight attendant of the situation and told her to secure the cabin early. Upon touchdown the nose wheel steering had indeed failed; and we were able to clear the runway and taxi (using differential braking) to the gate lead-in line whereupon the station met us with a tug for the final tow-in.

Original NASA ASRS Text

Title: Flight crew experienced a system failure which rendered nose wheel steering inoperative.

Narrative: On initial descent for ZZZ; we received a 'WOW INPUT' (weight-on-wheels) caution message accompanied by a 'PROX SYS FAULT' (proximity system fault) status message on the cockpit EICAS displays. We were advised by the QRH for this particular failure that our nose wheel steering may not be available upon landing.Not knowing whether or not our nose wheel steering would be available and in what direction our nose wheel might be pointing upon touchdown; led me to [expedite] our arrival into ZZZ. I advised the flight attendant of the situation and told her to secure the cabin early. Upon touchdown the nose wheel steering had indeed failed; and we were able to clear the runway and taxi (using differential braking) to the gate lead-in line whereupon the station met us with a tug for the final tow-in.

Data retrieved from NASA's ASRS site 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.