SDR IPXA2021110175497

Service difficulty report · Pipe · Doug MD11F

Difficulty date: October 31, 2021
Submitted: November 1, 2021
Operation: Air carrier
Aircraft: N259UP
Make and model: Doug MD11F
Aircraft serial: 48417
Aircraft time: 87,735 hours, 18,448 cycles
System (JASC): 2900 · Hydraulic Power System
Part: Pipe
Part number: AYK7550812
Condition: Ruptured
Location: L/H W/W
Stage of operation: IN
How discovered: 9
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

INSPECTION TYPE:3CAPPX. 250 MILES FROM SDF DURING DECENT AP1 DISCONNECTED AND WE RECEIVED A LEVEL 1 HYD. 2 OFF ALERT, HYD 2 QUANATY WAS 2.6 GALLONS, REDUCED TO 2.1 DURING APPROACH.REMOVED AND REPLACED HYD. PRESSURE LINE IN L/H W/W, LEAK CHECK IS GOOD REF. AMM 20-50-01-910-801, AND AMM 71-00-02-800-810.

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