A B737 captain's airspeed indicator failed during the takeoff roll as IAS disagree alerted along wit...

Narrative:

Leg one of a four-day trip; captains takeoff. At approximately 100 knots; the master caution light with engine on the copilot 'six pack' illuminated. I called out the engine warning; verified that both engines were operating normally on their engine instruments and the captain stated 'continue.' there was no adverse yaw involved. This engine light went out a short time later. In conjunction with the master caution light and again at approximately 100 knots; on my airspeed indicator I saw an 'IAS disagree.' I looked at the standby airspeed indicator and saw that it matched mine; but did not announce this indication. I also verified that the pitot heat was on. Sometime later before V1; the captain said 'I have no airspeed indicator.' rotation was normal; although the autothrottles had kicked off at some point. Gear retraction was normal and upon initial flap retraction; the captain's stall limiter activated. Again; I verified my airspeed indicator with the stby airspeed indicator and they were both in agreement. The captain's airspeed indicator read zero. We continued the climb and the stick shaker ceased at approximately 250 knots. I believe when the captains airspeed indicator returned to normal at this point. He was flying off the stby until then. The aircraft operated normally for the remainder of the flight. We wrote both issues up on the way into our destination.

Original NASA ASRS Text

Title: A B737 Captain's airspeed indicator failed during the takeoff roll as IAS disagree alerted along with the ENG and the Master Caution lights; but the takeoff continued and the airspeed returned to normal at 250 knots in the climb.

Narrative: Leg one of a four-day trip; Captains takeoff. At approximately 100 knots; the Master Caution Light with ENG on the copilot 'six pack' illuminated. I called out the engine warning; verified that both engines were operating normally on their engine instruments and the Captain stated 'continue.' There was no adverse yaw involved. This ENG light went out a short time later. In conjunction with the Master Caution Light and again at approximately 100 knots; on my airspeed indicator I saw an 'IAS disagree.' I looked at the standby airspeed indicator and saw that it matched mine; but did not announce this indication. I also verified that the pitot heat was ON. Sometime later before V1; the Captain said 'I have no airspeed indicator.' Rotation was normal; although the autothrottles had kicked off at some point. Gear retraction was normal and upon initial flap retraction; the Captain's stall limiter activated. Again; I verified my airspeed indicator with the STBY airspeed indicator and they were both in agreement. The Captain's airspeed indicator read zero. We continued the climb and the stick shaker ceased at approximately 250 knots. I believe when the Captains airspeed indicator returned to normal at this point. He was flying off the STBY until then. The aircraft operated normally for the remainder of the flight. We wrote both issues up on the way into our destination.

Data retrieved from NASA's ASRS site as of July 2013 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	1081992
Time
Date	201304
Local Time Of Day	1801-2400
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Make Model Name	B737 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	Takeoff
Flight Plan	IFR
Component
Aircraft Component	Airspeed Indicator
Person 1
Function	First Officer Pilot Not Flying
Experience	Flight Crew Last 90 Days 180 Flight Crew Total 6000 Flight Crew Type 300
Events
Anomaly	Aircraft Equipment Problem Critical

A B737 captain's airspeed indicator failed during the takeoff roll as IAS disagree alerted along with the engine and the master caution lights; but the takeoff continued and the airspeed returned to normal at 250 knots in the climb.