Service difficulty report · Seal · Doug MD11

Difficulty date
August 14, 2006
Submitted
August 15, 2006
Operation
Air carrier
Aircraft
N272
Make and model
Doug MD11
Aircraft serial
48437
Engine
Pwa PW4462
Part
Seal
Part number
1488951
Part serial
875
Condition
Blown
Location
Hydraulic Sys
Stage of operation
CL
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

RCH764/14 KGTB/KGTB DURING CLIMB (HYD 3 ELEV OFF) LEVEL 1 ILLUMINATED. HYD 3 WENT TO 3.8GAL. CONFERED WITH MX AND ACCOMPLISHED AIR RETURN TO KGTB. AFTER GEAR DOWN HYD 3 QUANTITY WENT TO 2.1 AND THE (HYD 3 QTY LOW) LEVEL 1 ALERT ILLUMINATED. FOUND HYD SYSTEM SHUTOFF VALVE SEALS BLOWN. REMOVED AND REPLACED VALVE IAW MM 29-12-95. OPS AND LEAK CHECK GOOD AFTER SYSTEM SERVICED AS REQUIRED. AIRCRAFT OK FOR SERVICE.

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