Service difficulty report · Circuit Breaker · Boeing 747123

Difficulty date
March 3, 1996
Submitted
March 26, 2000
Operation
Air carrier
Aircraft
N859FT
Make and model
Boeing 747123
Aircraft serial
20326
Part
Circuit Breaker
Part number
10608061025
Condition
Failed
Location
Cockpit
Stage of operation
TX
Nature of condition
O
Precautionary procedure
D

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

What was found

AIRCRAFT RETURNED TO BLOCKS DUE TO FAILURE OF ALL RADIO/AIR DATA INSTRUMENTS ON CAPTAIN'S SIDE. FOUND ESSENTIAL RADIO BUS C/B OPEN, DUE TO HISTORY OF C/B OPENING REPLACED C/B. CHECKED SYSTEM PER MM 34-13-00 AND 24-50-02.