Service difficulty report · Pump · Boeing 747446

Difficulty date
September 3, 2025
Submitted
March 23, 2026
Operation
Air carrier
Aircraft
N356KD
Make and model
Boeing 747446
Aircraft serial
25356
Aircraft time
83,500 hours, 17,029 cycles
Part
Pump
Condition
Corroded
Location
Zone 100
Stage of operation
IN
How discovered
V
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

DURING HEAVY MAINTENANCE CHECK EVIDENCE OF CORROSION AROUND RIGHT CENTER TANK JETTISON PUMP. WORK ACCOMPLISHED IAW AGREEMENT NR WGN-RE-2500580. THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE.