Easyjet A319 at Thessaloniki on May 30th 2017, smoke in cockpit
Last Update: March 12, 2018 / 16:43:12 GMT/Zulu time
Incident Facts
Date of incident
May 30, 2017
Classification
Incident
Cause
Smoke in cockpit
Airline
Easyjet
Flight number
U2-1110
Departure
Thessaloniki, Greece
Destination
Basel/Mulhouse, France
Aircraft Registration
HB-JYK
Aircraft Type
Airbus A319
ICAO Type Designator
A319
A short circuit was identified as cause of the smoke in the cockpit.
The airline reported a technical problem as cause of the return. A replacement aircraft is being dispatched to Thessaloniki.
On Jun 7th 2017 Switzerland's SUST reported the occurrence had been rated a serious incident and is being investigated by the SUST. At FL100 the crew requested to return to Thessaloniki reporting fumes in cockpit and cabin.
On Mar 12th 2018 Switzerland's SUST released their final report concluding:
Given the fact that no fume events have reoccurred since the replacement of the avionics blower fan assembly, it can be concluded that the fumes noticed by the crew came from the failed unit as stated in the PFR, although no failure was found during the following shop inspection.
The SUST reported there had been a brief observation of haze and fumes upon landing into Thessaloniki during the previous sector. Cabin crew believed it was related to the hard braking. During subsequent walk around special attention was given to a possible bird strike with no such evidence found. The departure was uneventful, after becoming airborne the crew activated both packs. Climbing through 7000 feet a strong stench similiar to a dirty oven developed in the cockpit, cabin crew verified that the galley ovens were all off, the stench was also present in the forward galley. The crew decided to don their oxygen masks and return to Thessaloniki. After turning off pack #1 in accordance with the related checklists it appears the odour was subsiding, cabin crew however indicated the odour was still worsening, a number of cabin crew were developing headaches. The flight crew therefore turned off both packs and opened the outflow valve which removed the odour. The aircraft landed on runway 16, emergency services checked the aircraft with no signs of fire or smoke.
During the ferry flight to Zurich the following day there was again a brief encounter of the odour with no visible haze or smoke.
Maintenance received indications "VENT BLOWER FAULT" as well as "AIR PACK 1+2 FAULT" 3 minutes later. The blower fan into avionics was replaced. The manufacturer of the fan examined the device and found no anomaly.
Te SUST analysed: "Thanks to the rapid decision-making and prudent actions of the flight crew, the passengers and crew were not in serious danger at any given time. There is no information available that the crew members showed any signs of smoke inhalation, after the incident flight." and added: "The avionics blower fan (part number: EVT3454HC) was identified as the root cause in many other fume events, thereby, leading to a set of measures already adopted by Airbus to further increase its reliability and mitigate operational impact."
Aircraft Registration Data
Incident Facts
Date of incident
May 30, 2017
Classification
Incident
Cause
Smoke in cockpit
Airline
Easyjet
Flight number
U2-1110
Departure
Thessaloniki, Greece
Destination
Basel/Mulhouse, France
Aircraft Registration
HB-JYK
Aircraft Type
Airbus A319
ICAO Type Designator
A319
This article is published under license from Avherald.com. © of text by Avherald.com.
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