Service difficulty report · Actuator · Bombdr DHC8401

Difficulty date
July 19, 2012
Submitted
July 23, 2012
Operation
Air carrier
Aircraft
N407QX
Make and model
Bombdr DHC8401
Aircraft serial
4049
Aircraft time
26,901 hours, 28,157 cycles
Engine
Pwc PW150A
Engine time
12,760 hours, 13,479 cycles
Propeller
Dowty R4086123F17
Part
Actuator
Part number
800600M03
Part serial
071
Condition
Malfunctioned
Location
Oil Cooler
Part time
18,287 hours, 18,754 cycles
Stage of operation
CL
How discovered
O
Nature of condition
M, J
Precautionary procedure
E, A

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

What was found

ON CLIMOUT PASSING THROUGH APROX 12,000 FT, NOTED OIL TEMP AT 107 DEG AND CLIMBING ON THE NR 2 ENGINE. CONDUCTED THE HIGH OIL TEMP CHECKLIST, WHICH REDUCED THE POWER AND MONITORED FOR 10 MINUTES, FOLLOWING 10-12 MINUTES OIL TEMP WAS AT 113 DEG AND THE NR 2 ENGINE WAS SHUTDOWN IAW THE E/A CHECKLIST. PRIOR TO ENGINE SHUTDOWN THE LOWEST OIL TEMP INDICATED WAS 122 DEG ON THE NR 2 ENGINE. LANDING WAS UNEVENTFUL. C/W AMM TASK 05-53-00-210-814, C/W FIM 79-00-00-810-805. R & R NR 2 DOOR OIL COOLER ACTUATOR IAW 79-21-31-000-801/400-801. R & R NR 2 OIL COOLER BYPASS VALVE IAW AMM TASK 79-21-06-000-801/400-801. OPS CHECKED GOOD. NO LEAKS NOTED. GROUND RAN AIRCRAFT NO FURTHER DEFECTS. RETURNED TO SERVICE.