Service difficulty report · Pump · Dhav DHC8106

Difficulty date
April 26, 2014
Submitted
April 28, 2014
Operation
Air carrier
Aircraft
N884EA
Make and model
Dhav DHC8106
Aircraft serial
387
Aircraft time
41,731 hours, 46,270 cycles
Part
Pump
Part number
849557
Part serial
MX573668
Condition
Overtemp
Location
Hydraulic Sys
Part time
7,975 hours, 8,764 cycles
Stage of operation
CL
How discovered
O
Nature of condition
J
Precautionary procedure
A

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

What was found

NUMBER 1 STBY PUMP HYD HOT LIGHT ILLUMINATED. WHEN NR 1 STBY PUMP SELECTED TO NORM IN FIGHT, HYD PRESS GRADUALLY DECREASED. WHEN PUMP IS CYCLED, PRESS ONLY INCREASES TO APPROX 800 PSI. NR 1 STBY PRESS INCREASED TO 2700 WHEN FLAPS SELECTED FOR LANDING WITH SWITCH IN NORM. R & R NR 1 STBY HYD PUMP. OPERATIONS & LEAKS CHECKED GOOD IAW MM 29-11-17.