Service difficulty report · Reservoir · Boeing 747428F

Difficulty date
January 5, 2025
Submitted
January 11, 2025
Operation
Air carrier
Aircraft
N952CA
Make and model
Boeing 747428F
Aircraft serial
25238
Aircraft time
115,213 hours, 17,460 cycles
System (JASC)
5200 · Doors
Part
Reservoir
Part number
12701564
Part serial
ALT1833683
Condition
Low Pressure
Location
Zone 800
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 A-CHECK INSPECTION AT LEVEL 5 AEROSPACE KCNW, IT WAS FOUND THAT EMERGENCY POWER RESERVOIR P/N: 1270156-4 S/N: ALT183-3683 HAS LOW PRESSURE. EMERGENCY POWER RESERVOIR P/N: 1270156-4 S/N: ALT183-3683 WAS REMOVED AND REPLACED ON NR 0072 UNDER LEVEL 5 AEROSPACE WORK ORDER NO. SV0002.