Service difficulty report · Air Speed Ind · Boeing 747123

Difficulty date
December 4, 1996
Submitted
March 26, 2000
Operation
Air carrier
Aircraft
N858FT
Make and model
Boeing 747123
Aircraft serial
20109
Part
Air Speed Ind
Part number
A4321710002
Condition
Malfunctioned
Location
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

CAPTAIN'S AIR SPEED INDICATOR FROZE AT 70 KNOTS INDICATED AIR SPEED DURING TAKEOFF ABORTED TAKEOFF AT APPROXIMATELY 90 TO 100 KNOTS INDICATED AIR SPEED. REMOVED AND REPLACED CAPTAIN'S AIR SPEED INDICATOR PER MAINTENANCE MANUAL 34-13-05. OPERATIONAL CHECK OK, NO LEAKS. FOUND PER MAINTENANCE MANUAL 34-11-00.