Service difficulty report · Relay · Boeing 737890

Difficulty date
July 22, 2010
Submitted
July 26, 2010
Operation
Air carrier
Aircraft
N557AS
Make and model
Boeing 737890
Aircraft serial
35176
Aircraft time
15,630 hours, 4,576 cycles
Part
Relay
Part number
KDAE4F
Condition
Defective
Location
E&E Bay
Stage of operation
IN
How discovered
O
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

WHILE PERFORMING TASK CARD 78128007 STEP D (8) (A) RELAY P963 PINS A2 B2 C2 HAVE MORE THAN 10 VOLTS AC. REMOVED RT CENTER BOOST PUMP GFI RELAY R55 PER MM 28 22 18 000 801. INSTALLED GFI R55 RELAY PER MM 28 22 18 400 801. PERFORMED TASK CARD 7818007 STEP D AND E BOTH STEPS PASSED.