SDR ABXA9900641

Service difficulty report · Control Valve · Doug DC863

Difficulty date: August 11, 1999
Submitted: March 26, 2000
Operation: Air carrier
Aircraft: N819AX
Make and model: Doug DC863
Aircraft serial: 45927
System (JASC): 3230 · Landing Gear Retraction/Extension System
Part: Control Valve
Part number: 57156105501
Condition: Leaking
Location: Lt Mlg Ww
Stage of operation: AP
Nature of condition: K, J
Precautionary procedure: O

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

What was found

ON FINAL APPROACH, WHEN LANDING GEAR LOWERED, HYDRAULIC PRESSURE WAS DECREASING RAPIDLY. PERFORMED LOSS OF HYDRAULICS CHECK LIST. AIRCRAFT WAS TOWED FROM RUNWAY DUE TO LACK OF BRAKE PRESSURE. REPLACED LANDING GEAR CONTROL VALVE IAW DC8 MM 22-32-7. OPS CHECKED GOOD.

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