B757-200 captain reported a rejected takeoff due to multiple erratic aircraft indications on takeoff...

Attributes
ACN	1523440
Time
Date	201803
Local Time Of Day	1801-2400
Place
Locale Reference	ZZZZ.Airport
State Reference	FO
Environment
Light	Night
Aircraft 1
Make Model Name	B757-200
Operating Under FAR Part	Part 121
Flight Phase	Takeoff
Flight Plan	IFR
Person 1
Function	Captain Pilot Not Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	Aircraft Equipment Problem Less Severe Flight Deck / Cabin / Aircraft Event Other / Unknown

Narrative:

During takeoff roll; immediately after setting takeoff power; captain's airspeed and altitude indications started varying greatly and rudder ratio was annunciated in the EICAS and on overhead panel. A rejected takeoff maneuver was accomplished; commencing at approximately 100 KIAS on the first officer's indicators. We exited the runway; referenced the QRH; and taxied back to the chocks. Maintenance said it may be an air data computer failure.

Original NASA ASRS Text

Title: B757-200 Captain reported a rejected takeoff due to multiple erratic aircraft indications on takeoff roll.

Narrative: During takeoff roll; immediately after setting takeoff power; Captain's airspeed and altitude indications started varying greatly and Rudder Ratio was annunciated in the EICAS and on overhead panel. A rejected takeoff maneuver was accomplished; commencing at approximately 100 KIAS on the First Officer's indicators. We exited the runway; referenced the QRH; and taxied back to the chocks. Maintenance said it may be an Air Data Computer failure.

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.

B757-200 captain reported a rejected takeoff due to multiple erratic aircraft indications on takeoff roll.