Service difficulty report · Bypass Valve · Urocop EC135P2

Difficulty date
October 19, 2020
Submitted
October 20, 2020
Operation
Air carrier
Aircraft
N836CS
Make and model
Urocop EC135P2
Aircraft serial
1104
Aircraft time
2,924 hours, 8,731 cycles
Part
Bypass Valve
Part number
L792M2002102
Part serial
22394
Condition
Failed
Location
Engine Oilcooler
Part time
2,924 hours, 8,731 cycles
Stage of operation
CR
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

PILOT PERFORMED A PL WITH A PATIENT ON BOARD AND REPORTED NR 2 ENGINE OIL TEMPERATURE ABOVE NORMAL LIMITS IN FLIGHT, PEAKED AT 134 DEGREES. MECHANIC INSPECTED ENGINE CHIP DETECTORS, DRAINED AND RESERVICED ENGINE OIL AND REPLACED NR 2 ENGINE OIL BYPASS VALVE. PERFORMED MOC AND OIL LEAK CHECK, NO DEFECTS NOTED.

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