Service difficulty report · Line · Doug MD11F

Difficulty date
April 27, 2018
Submitted
May 18, 2018
Operation
Air carrier
Aircraft
N596FE
Make and model
Doug MD11F
Aircraft serial
48554
Aircraft time
83,824 hours, 17,231 cycles
Part
Line
Part number
AE7081642
Condition
Cracked
Location
Hyd System
Stage of operation
CR
How discovered
O
Nature of condition
K, J
Precautionary procedure
O

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

What was found

AFTER TAKE OFF, RECEIVED A LEVEL 1 HYD 1 OFF WARNING, FL 330. HYD 1 QTY 2.5. QTY DECREASED TO 0.0. RECIEVED LEVEL 2 HYD 1 FAIL. FOUND AFT LINE FROM OUTLET SIDE OF RT PUMP TO HYD MANIFOILD HAD CRACKED OUT AT THE REAR END AND CRACKED AT FRONT ON THE NR 1 ENGINE. REMOVED AND REPLACED ALL OF THE AFT LINES GOING TO UPPER PUMP. FOUND A BROKEN MOUNT ON THE OTBD LINE,

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