Service difficulty report · Wire Harness · Boeing 737823

Difficulty date
August 10, 2019
Submitted
August 22, 2019
Operation
Air carrier
Aircraft
N906NN
Make and model
Boeing 737823
Aircraft serial
31155
Aircraft time
21,471 hours, 8,840 cycles
Part
Wire Harness
Condition
Tight
Location
Boost Pump
Stage of operation
TX
How discovered
O
Nature of condition
J
Precautionary procedure
O

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

What was found

AIRCRAFT NOT GROUNDED: PILOT REPORTS NBR 2 TANK AFT BOOST PUMP LIGHT ILLUMINATED ON THE GROUND BEFORE TAKE-OFF. MAINTENANCE COMPLIED WITH FIM 28-22-00-810-805. FOUND WIRING TO AFT 2 LOW PRESSURE SWITCH AT A HIGH TENSION (TOO TIGHT). LOOSENED AND REPOSITIONED WIRING TO S152 IAW SWPM 20-10-11. ACCOMPLISHED GFI OPERATIONAL TEST ON AFT 2 PUMP IAW AMM 28-22-41-720-802. TEST CHECK GOOD.