Service difficulty report · Drive Assy · Boeing 7474R7F

Difficulty date
May 26, 2016
Submitted
May 31, 2016
Operation
Air carrier
Aircraft
N581UP
Make and model
Boeing 7474R7F
Aircraft serial
25866
Aircraft time
102,492 hours, 17,299 cycles
Part
Drive Assy
Condition
Inoperative
Location
Hyd System
Stage of operation
CR
How discovered
O
Nature of condition
K, J
Precautionary procedure
J, A

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

What was found

HYDRAULIC PRESSURE SYS NR 1 DURING CRUISE. SYNOPTICS SHOWED ALL PUMPS INOPERATIVE. EMERGENCY DECLARED. R & R ADP TURBINE DRIVE IAW AMM 29-11-08-401. R & R ADP ASSY IAW AMM 29-11-17-401. LEAK AND OPS CHECK GOOD.

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