Service difficulty report · Valve · Doug MD11F

Difficulty date
March 30, 2022
Submitted
April 13, 2022
Operation
Air carrier
Aircraft
N601FE
Make and model
Doug MD11F
Aircraft serial
48401
Aircraft time
89,454 hours, 23,124 cycles
Part
Valve
Part number
AYG70505507
Part serial
CV0033
Condition
Failed
Location
N/A
Stage of operation
TO
How discovered
O
Nature of condition
J
Precautionary procedure
A

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

What was found

PDIS 601 32-30 3967 30MAR22 OAK OPEN U AFTER ROTATION ON TAKEOFF AND CALLING FOR GEAR UP , GEAR HANDLE EXTREMELY DIFFICULT TO MOVE STARTING ABOUT A THIRD THROUGH THE RANGE OF TRAVEL. GOT THE GEAR HANDLE TO MOVE TO THE UP POSITION WITH 20-30 POUNDS OF FORCE AFTER 3 TRIES. ALL PRIMARY AND SECONDARY GEAR INDICATIONS WERE RED AND NO NOTICEABLE SOUND OR FEEL OF GEAR COMING UP. LEFT HANDLE UP FOR APPROXIMATELY 2 MINUTES WITH NO CHANGE. PUT GEAR HANDLE DOWN WITH NORMAL FORCE AND IMMEDIATELY HAD 4 GREEN PRIMARY AND SECONDARY INDICATIONS. WHILE GEAR HANDLE WAS UP WITH RED INDICATIONS, NOTICED LEVEL 2 MSC AUTO FAIL AND ENGINE IGNITION MANUAL ALERTS. REMOVED AND REPLACED LANDING GEAR SELECTOR VALVE REF MM 32-31-20-4

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