SDR FDEA202112283156

Service difficulty report · Line · Doug MD11F

Difficulty date: December 28, 2021
Submitted: December 30, 2021
Operation: Air carrier
Aircraft: N521FE
Make and model: Doug MD11F
Aircraft serial: 48478
Aircraft time: 84,549 hours, 15,896 cycles
System (JASC): 2910 · Hydraulic System, Main
Part: Line
Part number: AJK550636
Condition: Leaking
Location: Hyd System
Stage of operation: CR
How discovered: O
Nature of condition: K, J
Precautionary procedure: A

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

What was found

LEVE 1 ALERT HYD 2 OFF. QUANTITY AT 5.4 THEN DROPPED TO 3.2 THEN JUMPED TO 10.0. WHEN FLAPS AND GEAR WERE EXTENDED FOR LANDING, QUANTITY DROPPED TO ZERO WITH LEVEL 2 ALERT HYD 2 FAIL. AT SHUT DOWN, QUANTITY WAS 1.6 FOUND LEAK ON #2 HYD PRESSURE LINE THROUGH ACCESS PNL 364QR,LINE HAD A BROKEN CLAMP

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