Service difficulty report · Pump · Dhav DHC8311

Difficulty date
February 3, 2017
Submitted
February 7, 2017
Operation
Air carrier
Aircraft
N876CA
Make and model
Dhav DHC8311
Aircraft serial
438
Aircraft time
39,755 hours, 43,568 cycles
Part
Pump
Part number
570347
Part serial
MX568633D
Condition
Inoperative
Location
Hyd System
Part time
37,375 hours, 51,018 cycles
Stage of operation
LD
How discovered
O
Nature of condition
J
Precautionary procedure
O

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

What was found

NR 1 HYD PRESSURE AND NR 1 HYD STANDBY PRESSURE READS ZERO. QUANTITY READS 2 QUARTS. FOUND CASE DRAIN TUBE ASSY LEAKING. R & R DRAIN TUBE LEAK & OPS CHECKED. EDP INSPECTED. R & R EDP CASE DRAIN TUBE, FAILED OPS CHECK. R & R CASE DRAIN FILTER. R & R THE EDP OPS CHECK FAILED. HYD PRESSURE AT ZERO. R & R EDP PRESSURE TUBE, EDP LEAK CHECKED, OPS CHECKED FAILED. R & R NR 1 EDP DUE TO CAVITATION. OPS & LEAK CHECKED GOOD. BLED HYD SYS, NO AIR IN THE SYSTEM. HYD PRESSURE READS NORMAL NO CAUTION LIGHTS.