Service difficulty report · Pump · Gulstm GV

Difficulty date
May 29, 2001
Submitted
June 13, 2001
Operation
Air carrier
Aircraft
N83M
Make and model
Gulstm GV
Aircraft serial
557
Aircraft time
1,064 hours, 659 cycles
Part
Pump
Part number
1159SCH5057
Part serial
MX606665B
Condition
Deteriorated
Location
Lt Engine
Part time
253 hours
Stage of operation
IN
How discovered
V
Nature of condition
O
Precautionary procedure
K

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

What was found

FLUID SAMPLE TAKEN AT 100 HR INTERVAL SHOW THAT THE PUMP NEEDS TO BE REPLACED. REPLACE PUMP AND BLED SYSTEM WITH SIGHT GAUGE INSTALLED IN RETURN LINE OF HYDRAULIC RIG, TO HELP EVALUATE AIR REMOVAL FROM SYSTEM.