Service difficulty report · Elbow · Doug MD11F

Difficulty date
March 20, 2019
Submitted
March 22, 2019
Operation
Air carrier
Aircraft
N599FE
Make and model
Doug MD11F
Aircraft serial
48598
Aircraft time
80,740 hours, 16,646 cycles
Part
Elbow
Part number
113756503
Condition
Damaged
Location
Nr 2 Engine
Stage of operation
CR
How discovered
O
Nature of condition
J
Precautionary procedure
K

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

What was found

AT CRUISE 20 MIN INTO THE FLIGHT HYD 2 LEFT AND RIGHT PUMPS FAULTED WITH AN AMBER T ABOVE THEM. HYD 2 QTY WAS 7.7 BUT THE TEMP OF THE HYD FLUID STARTED CLIMBING AND WAS BOXED AMBER. MAX TEMP WAS 120C. WHEN CONFIGURING FOR LANDING HYD 2 SYS. SLOWY CAME BACK TO NORMAL. REMOVED DAMAGED HIGH PRESSURE TURB AIR ELBOW PER IPC REF 75-23-05-01 AND INSTALLED NEW. PERFORMED ALL SYSTEM CHECKS OF NR 2 ENGINE AS THOUGH THE ENTIRE ENGINE WAS REPLACED PER MM 71-00-00-5-1, ALL CHECKS PASSED. RAN NR 2 ENG AT IDLE FOR LEAK AND OPS CHECK AND ALSO AT HIGH POWER PER JRH, ALL TEMPERATURES, AND INDICATIONS NORMAL. ANTI-ICE SYSTEM CHECKS NORMAL AND HYDRAULIC TEMPERATURES ALSO SHOW NORMAL PER OPERATING LIMITS. A/C OK FOR CONTINUED SERVICE.

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