Jetstar A320 near Brisbane on Sep 22nd 2016, haze in cabin, engine shut down in flight
Last Update: April 27, 2017 / 13:17:30 GMT/Zulu time
The airline reported there was a technical issue with one of the engines, the engine was shut down as a precaution. The cause of the smoke, that entered the cabin through the air conditioning system, is being investigated.
On Sep 23rd 2016 Australia's TSB reported the right hand engine failed while enroute, the crew decided to divert to Brisbane. The occurrence was rated an incident and is being investigated by the ATSB.
On Apr 27th 2017 the ATSB released their final report concluding the probable cause of the incident was:
The right engine number 3 bearing failed, resulting in engine power loss and led to smoke entering the flight deck and cabin.
The ATSB reported during climb out of Sydney cabin crew were investigating an electrical burning odour that was detected in the cabin. About two minutes later the flight crew received an ECAM message "ENG 2 OIL FILTER CLOG", however the oil filter bypass did not activate as the differential pressure did not exceed 12psi (20 psi required to open the bypass). The message was an advisory only and did not require crew actions.
The cabin manager informed the flight deck that the odour had dissipated.
After levelling off at FL340 the flight crew, in anticipation for a possible diversion, obtained weather for Brisbane Airport and checked the engine oil system.
About 12 minutes after the ECAM message cabin crew detected smoke entering the cabin from the overhead air conditioning vents full length of the cabin. Just when the flight crew received the report they sensed a vibration and a yaw of the aircraft, an ECAM message "ENG 2 FAIL" occurred. The flgiht crew commenced the engine failure checklist, while working through the checklist they detected smoke coming through the air conditioning vents and donned their oxygen masks. At the same time heavy smoke occurred in the cabin. In working the engine failure checklist the flight crew activated the engine fire button, which isolated the right hand engine from the aircraft systems. The smoke dissipated, and the flight crew was subsequently able to remove their oxygen masks, the smoke also dissipated in the cabin. The crew declared PAN and diverted to Brisbane.
The ATSB analysed (quoted in full):
The initial odour detected by the cabin crewmembers during the aircraft’s climb, along with the ENG 2 OIL FILTER CLOG ECAM message, likely resulted from the early stages of the number 3 bearing failure. The later instance of smoke in the cabin and flight deck occurred as the bearing failed. The failure of the number 3 bearing resulted in a complete power loss from the right engine.
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This article is published under license from Avherald.com. © of text by Avherald.com.
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