SDR CA150917005

Service difficulty report · O-Ring · Aerosp ATR72202

Difficulty date: September 3, 2015
Submitted: April 22, 2016
Operation: General aviation
Make and model: Aerosp ATR72202
Aircraft time: 38,349 hours
Engine: Pwa PW124B
Propeller: Hamstd 14SF*
System (JASC): 7261 · Turbine Engine Oil System
Part: O-Ring
Part number: AS3209110
Condition: Worn
Location: Probe
Stage of operation: CR
How discovered: O
Nature of condition: K, B
Precautionary procedure: A

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

What was found

(CAN) FIGHT CREW RECEIVED A SMOKE WARNING FOLLOWING TAKEOFF. THE ACFT RETURNED TO THE AIRPORT WITHOUT INCIDENT. INVESTIGATION REVEALED THAT THE O-RINGS ON THE NL PROBES HAD DETERIORATED AND WERE ALLOWING OIL FUMES/VAPOR INTO THE ACFT BLEED SYSTEM. O-RING PN AS3209-110, 1 IAW ENGINE/PROBE AND MS9386-112, 1 ENGINE, PROBE.

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