B737 flight crew rejected takeoff at less than 60KTS when the captain's airspeed indicator failed.

Narrative:

On takeoff at 50-55KTS captains IAS needle went to '0' with associated red IAS off flag. Cross reference showed first officer airspeed working nominal. Reject started at 55KTS (captain flying) rejected takeoff function did not engage. Checked brake energy chart in QRH and spoke with dispatch & maintenance control via cellphone to verify safe brakes in gate area. Returned to gate. Maintenance determined captains airspeed indicator had failed. All in all - an almost non-event.

Original NASA ASRS Text

Title: B737 flight crew rejected takeoff at less than 60KTS when the Captain's airspeed indicator failed.

Narrative: On takeoff at 50-55KTS Captains IAS needle went to '0' with associated red IAS OFF flag. Cross reference showed First Officer airspeed working nominal. Reject started at 55KTS (Captain flying) RTO function DID NOT engage. Checked brake energy chart in QRH and spoke with Dispatch & Maintenance Control via cellphone to verify safe brakes in gate area. Returned to gate. Maintenance determined Captains airspeed indicator had failed. All in all - an almost non-event.

Data retrieved from NASA's ASRS site as of April 2012 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.

Attributes
ACN	834585
Time
Date	200905
Local Time Of Day	0601-1200
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	B737 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Plan	IFR
Component
Aircraft Component	Airspeed Indicator
Person 1
Function	Captain
Events
Anomaly	Aircraft Equipment Problem Critical