Service difficulty report · Air Speed Ind · Boeing 747122

Difficulty date
January 9, 1997
Submitted
March 26, 2000
Operation
Air carrier
Aircraft
N851FT
Make and model
Boeing 747122
Aircraft serial
19756
Part
Air Speed Ind
Part number
A4321710002
Condition
Reads High
Location
Rt Cockpit
Stage of operation
TO
Nature of condition
O
Precautionary procedure
C, D

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

AFTER APPLICATION ON TAKEOFF, THRUST FIRST OFFICERS AIRSPEED INDICATOR INDICATED 20 KNOTS FASTER THAN CAPTAINS, INCREASED TO 85 KNOTS THEN STUCK AT THAT INDICATION. ABORTED TAKEOFF. REPLACED FIRST OFFICERS AIRSPEED INDICATOR PER BOEING MAINTENANCE MANUAL 34-13-04.