Service difficulty report · Line · Frchld SA227DC

Difficulty date
May 9, 2000
Submitted
July 1, 2000
Operation
Air carrier
Aircraft
N853LS
Make and model
Frchld SA227DC
Aircraft serial
DC853B
Part
Line
Part number
27810322682
Condition
Broken
Location
Hyraulic System
Stage of operation
CR
How discovered
O
Nature of condition
K, J
Precautionary procedure
B, A

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

What was found

FLT 1315 - DEN - BOTH HYDRAULIC PUMP LIGHTS CAME ON DURING CRUISE AND HYDRAULIC PRESSURE DROPPED BELOW NORMAL RANGE, BUT DIDN''T GO TO 0 PSI. CREW EXTENDED GEAR MANUALLY AND LANDED WITH NO FURTHER INCIDENT. THE HYDRAULIC PRESSURE LINE BROKE JUST AFT OF THE FLARE UNDER THE FERRULE. TWO CLAMPS WERE FOUND TO BE MISSING FROM THE LINE. THIS MAY HAVE ALLOWED THE LINE TO VIBRATE, CAUSING WORK HARDENING OR A STRESS FRACTURE. LINE WAS LONG ENOUGH TO CUT OFF END, REFLARE AND REINSTALL. LINE WAS PROPERLY CLAMPED. HYDRAULIC FLUID WAS SERVICED, GROUND RUN AND LEAK CHECK WERE PERFORMED WITH NO FURTHER DEFECTS. (M)