SDR MEX2002363

Service difficulty report · Check Valve · Doug DC983

Difficulty date: December 15, 2002
Submitted: January 3, 2003
Operation: Air carrier
Aircraft: N838AM
Make and model: Doug DC983
Aircraft serial: 49397
Engine: Pwa JT8D
System (JASC): 2910 · Hydraulic System, Main
Part: Check Valve
Part number: 79182825001
Part serial: 1374A
Condition: Failed
Location: Hyd System
Stage of operation: NR
How discovered: O
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

AIRCRAFT RETURN TO PLATFORM DUE TO A LT HYD SYSTEM LEAK. DURING CHECK, DETECTED DAMAGE TO THE CHECK VALVE. A LINE WAS INSTALLED AT THE FLUID QUANTITY LIMITER OF BRAKE NR 1, LEAK CHECKED IAW MM. DURING OVERNIGHT SERVICE, LINE WAS REMOVED AND CHECK VALVE WAS INSTALLED IAW MM, TESTS OK.

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