Service difficulty report · Fmc · Boeing 737824

Difficulty date
November 16, 2022
Submitted
November 16, 2022
Operation
Air carrier
Aircraft
N33286
Make and model
Boeing 737824
Aircraft serial
31600
Aircraft time
58,011 hours, 20,899 cycles
Part
Fmc
Condition
Faulted
Stage of operation
CL
How discovered
O
Nature of condition
J
Precautionary procedure
A

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

What was found

VNAV FAILED ON DEPARTURE WORKED FOR A SHORT TIME ON CLIMB THEN FAILED AGAIN. AND STANDBY BOTH FMC'S INFLT.TRUE AIRSPEED WAS INDICATING APPROX 100 KTS HIGHER ON FO'S PFD THEN CAPT'S, INDICATED AIRSPEED ALL THREE MATCHED, CAPT'S- FO'S INSTALLED TAT PROBE. APPLIED SEALANT AROUND TAT PROBE SKIN INTERIOR. RESISTANCE CHECK GOOD. BITE CHECK SHOWS NO FAULTS.