Service difficulty report · Relay · Boeing 747428F

Difficulty date
February 25, 2015
Submitted
February 27, 2015
Operation
Air carrier
Aircraft
N580UP
Make and model
Boeing 747428F
Aircraft serial
25632
Aircraft time
88,121 hours, 15,413 cycles
Engine
Ge CF680C2B1F
Part
Relay
Part number
E308AH
Part serial
CG47960
Condition
Inoperative
Location
Power Transfer
Stage of operation
IN
How discovered
9
Nature of condition
O
Precautionary procedure
K

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

What was found

C/B FOR STANDBY POWER TRANSFER RELAY POPPING ON P6-6 PANEL. ONLY IF STBY POWER IN AUTO POS. R & R STANDBY POWER TRANS RELAY IAW AMM 24-29-03-004 & 404. STBY POWER SYSTEM TEST GOOD.