SDR CA960306002

Service difficulty report · O-Ring · Dhav DHC8301

Difficulty date: February 11, 1996
Submitted: March 26, 2000
Operation: Air carrier
Make and model: Dhav DHC8301
Engine: Pwa PW123
System (JASC): 2913 · Hydraulic Pump (Electric/Engine), Main
Part: O-Ring
Condition: Ruptured
Location: #2 Edp Fitting
Stage of operation: AP
Nature of condition: K
Precautionary procedure: L, O

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

What was found

(CAN) ON APPROACH, THE CREW EXPERIENCED COMPLETE LOSS OF HYDRAULIC FLUID ON THE NUMBER TWO SYSTEM. THE CREW CARRIED OUT AN ALTERNATE GEAR EXTENSION. MAINTENANCE DISCOVERED THE PROBLEM TO BE CAUSED BY A RUPTURED 'O' RING ON A FITTING LEADING TO THE #2 ENGINE DRIVEN HYDRAULIC PUMP. 'O' RING REPLACED, ENGINE GROUND RUN COMPLETELY AND LEAK CHECKED SERVICEABLE.