Service difficulty report · Circuit Breaker · Boeing 737752

Difficulty date
February 18, 2024
Submitted
February 19, 2024
Operation
Air carrier
Aircraft
N7886A
Make and model
Boeing 737752
Aircraft serial
35122
Aircraft time
53,598 hours, 28,162 cycles
Part
Circuit Breaker
Part number
UNKNOWN
Condition
Tripped
Location
Zn 100 Fus Lower
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

DURING CLIMBOUT THERE WAS A CLICK SOUND AND THEN THE LOWER DU BLANKED; THE LEFT FWD;RIGHT AFT AND LEFT CTR FUEL LOW PRESSURE LIGHTS ILLUMINATED; THE FORWARD WINDOW HEAT LIGHTS ILLUMINATED;ALL AMPS AND VOLTS APPEARED TO BE NORMAL<[01] FOUND C/B XFER BUS 1 SECTION 2 POPPED BEHIND P-91 PANEL. INSPECTED WIRING FOR OBVIOUS DEFECTS ON FUEL BOOST PUMPS; VISIBLE WIRING FROM P-91 PANEL FWD IN E&E TO COCKPIT AND WIRING FROM FLOOR TO ASSOCIATED SYSTEMS BEHIND P-6 PANEL REF WDM 24-51-11;[02] REMOVED P91 PANEL PER AMM 24-21-21. INSPECTED P91 PANEL CHECK CONTINUITY FROM A2 TO J2A; B2 TO J2B; C2 TO J2C AND FOR SHORTS. NO FAULTS FOUND. REPLACED C3002 AND C0801 PER AMM 24-61-01 AND SWPM 20-30-00.;[03] OPS NORMAL AT THIS TIME.