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ASN Wikibase Occurrence # 217632
Last updated: 5 October 2020
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Time:17:02 UTC
Type:Silhouette image of generic B738 model; specific model in this crash may look slightly different
Boeing 737-8GJ (WL)
Owner/operator:SmartWings, opf Israir
Registration: OK-TSF
C/n / msn: 37360/2783
Fatalities:Fatalities: 0 / Occupants: 105
Other fatalities:0
Aircraft damage: None
Category:Serious incident
Location:nr GORIX, UIR Kyiv -   Ukraine
Phase: En route
Nature:Passenger - Scheduled
Departure airport:Warszawa-Frédéric Chopin Airport (WAW/EPWA)
Destination airport:Tel Aviv-Ben Gurion International Airport (TLV/LLBG)
Investigating agency: UZPLN
Israir flight 734 from Warsaw to Tel Aviv, diverted to Kosice, Slovakia, after suffering cabin pressurization problems.
The aircraft, a Boeing 737-800, departed Warsaw, Poland at 16:34 hours.
At 17:02 UTC, after reaching FL390 in the climb, the flight crew noticed fluctuations in the cabin pressure. The pilot began to feel dizzy and normal breathing became impossible. They donned their oxygen masks and issued a Mayday, stating they were descending to FL100. The Lviv Radar controller confirmed this message and cleared the flight to FL100.
The flight crew then decided to divert to the nearest suitable airport, which was Kosice Airport, Slovakia. The aircraft landed safely at 17:46 hours.

The cause of the serious incident was the reduced throughput of the static and dynamic pressure systems, which together with faults on the air pressure components triggered the signaling and fluctuation of the Cabin Differential Pressure.



Accident investigation:
Investigating agency: UZPLN
Status: Investigation completed
Download report: Final report


Photo of OK-TSF courtesy

Düsseldorf - International (EDDL / DUS)
1 October 2019; (c) Pertti Sipilä

Revision history:

11-Nov-2018 14:58 harro Added
11-Nov-2018 15:02 harro Updated [Photo]
04-Jan-2019 07:52 xtrasymphony Updated [Location]

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