What was found
AFTER TAKEOFF MINIMUM MANEUVER SPEED AMBER BAND ROSE INTO THE INDICATED AIRSPEED ONLY ON CAPTAINS SIDE. LOWERED THE NOSE AND THE AIRSPEED ACCELERATED AND THE AMBER BAND RETREATED. ALL AIRSPEED AFTER TAKEOFF MINIMUM MANEUVER SPEED AMBER BAND ROSE INTO THE INDICATED AIRSPEED ONLY ON CAPTAINS SIDE. LOWERED THE NOSE AND THE AIRSPEED ACCELERATED AND THE AMBER BAND RETREATED. ALL AIRSPEED INDICATIONS SHOWED NORMAL AND RELIABLE. CROSSCHECKED BY RUNNING THE AIRSPEED UNRELIABLE CHECKLIST. EMERGENCY DECLARED AND DIVERTED TO ELP. UNEVENTFUL LANDING / [01] ENTERED IN ERROR