Service difficulty report · Pump · Dorner DO328100

Difficulty date
May 26, 2000
Submitted
June 2, 2000
Operation
Air carrier
Aircraft
N431JS
Make and model
Dorner DO328100
Aircraft serial
3028
Aircraft time
12,451 hours, 10,648 cycles
Engine
Pwa PW119B
Propeller
Hartzl HDE6C3B
Part
Pump
Part number
42086
Part serial
GM97
Condition
Failed
Location
Hydraulic Sys
Part time
12,259 hours, 13,979 cycles
Stage of operation
AP
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

ON FINAL APPROACH, THE CREW TRIED TO LOWER THE FLAPS AND THE CREW RECEIVED A FLAP CONTROL AND HYDRAULIC PUMP FAIL CAS MESSAGES. THE CREW DID A GO-AROUND AND SELECTED THE STANDBY PUMP WHICH INDICATED NORMAL AND FLIGHT 4014 LANDED WITHOUT INCIDENT. MAINTENANCE INSPECTED AND REPLACED THE MAIN HYDRAULIC PUMP IN ACCORDANCE WITH DORNIER MAINTENANCE MANUAL 29-11-08. OPERATIONAL CHECKS WERE DONE AND THE AIRCRAFT WAS RELEASED FOR SERVICE.