Service difficulty report · Oil System · Aerosp ATR42300

Difficulty date
November 8, 2010
Submitted
March 15, 2011
Operation
Air carrier
Make and model
Aerosp ATR42300
Aircraft time
37,214 hours
Engine
Pwc PW610FA
Part
Oil System
Condition
Leaking
Location
Engine
Stage of operation
CR
How discovered
O
Nature of condition
K, J
Precautionary procedure
A

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

What was found

(CAN) IFSD/LOSS OF OIL ENGINE EXPERIENCED OIL PRESSURE FLUCTUATIONS IN FLIGHT AND WAS SHUT DOWN PRIOR TO THE CCAS WARNING SYSTEM ACTIVATION. THE LIGHT ON THE OIL PRESSURE GAUGE WAS INDICATING LOW PRESSURE AT THE TIME OF SHUT DOWN. PILOT REPORT REVEALED THAT THE MOP HAD REMAINED ABOVE 40 PSID. CAUSE OF LOW OIL PRESSURE WAS ATTRIBUTED TO THE LOSS OF 4 LITERS OF OIL DUE TO A LEAK AT THE AC GENERATOR SEAL.

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