SDR 20000615AP018

Service difficulty report · Check Valve · Lkheed 1011*

Difficulty date: March 17, 2000
Submitted: May 31, 2000
Operation: Air carrier
Aircraft: N104NL
Make and model: Lkheed 1011*
Aircraft serial: 1931203
System (JASC): 3200 · Landing Gear System
Part: Check Valve
Part number: 725323
Condition: Leaking
Location: Rt Mlg
Stage of operation: CL
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

LANDING GEAR DOOR LIGHTS ON, GEAR DID NOT RETRACT ALONG WITH A LOSS OF C SYSTEM HYDRAULIC. MAIN LANDING GEAR WAS MANUALLY DEPLOYED. AIRCRAFT LANDING NORMAL. FOUND RIGHT MLG DOOR ACTUATOR CONTROL CHECK VALVE LEAKING. REPLACED PACKING AND BACKUP RINGS IAW 32-33-02. OPS CHECKED NORMAL. REPLENISHED C SYSTEM HYDRAULIC FLUID IAW 12-13-00. AIRCRAFT RETURNED TO SERVICE. (M)