A B737 rejected its takeoff when the captain's airspeed indicator and altimeter failed.

Attributes
ACN	929608
Time
Date	201101
Local Time Of Day	0601-1200
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	IMC
Light	Daylight
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	Pitot-Static System
Person 1
Function	Captain
Qualification	Flight Crew Air Transport Pilot (ATP)
Experience	Flight Crew Last 90 Days 210 Flight Crew Type 15120
Person 2
Function	First Officer
Experience	Flight Crew Last 90 Days 225 Flight Crew Type 9000
Events
Anomaly	Aircraft Equipment Problem Critical

Narrative:

We had the airplane deiced after pushback with type 1. During takeoff; the 80-knot crosscheck was accomplished. The first officer announced 'V1' at V1-5. I crosschecked my airspeed indicator to see it red flagged and the needle was moving toward zero. Simultaneously; the altimeter was red flagged and the altitude alerter sounded. Immediately; I rejected the takeoff. We weighed approximately 98;800 pounds with 2;507 ft of stopping margin. It was obvious from the start of the reject; we had plenty of runway to stop. We rolled onto taxiway mike and held the brakes. No emergency was declared. The rejected takeoff checklist was accomplished; and we communicated with the flight attendants; passengers; maintenance; operations; and dispatch. Brake cooling was accomplished and we were towed to the gate. It could have been deicing fluid in the pitot-static system.

Original NASA ASRS Text

Title: A B737 rejected its takeoff when the Captain's airspeed indicator and altimeter failed.

Narrative: We had the airplane deiced after pushback with Type 1. During takeoff; the 80-knot crosscheck was accomplished. The First Officer announced 'V1' at V1-5. I crosschecked my airspeed indicator to see it red flagged and the needle was moving toward zero. Simultaneously; the altimeter was red flagged and the Altitude Alerter sounded. Immediately; I rejected the takeoff. We weighed approximately 98;800 pounds with 2;507 FT of stopping margin. It was obvious from the start of the reject; we had plenty of runway to stop. We rolled onto Taxiway Mike and held the brakes. No emergency was declared. The RTO Checklist was accomplished; and we communicated with the Flight Attendants; Passengers; Maintenance; Operations; and Dispatch. Brake cooling was accomplished and we were towed to the gate. It could have been deicing fluid in the pitot-static system.

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.