ASN Wikibase Occurrence # 171729
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| Date: | Saturday 29 November 2014 |
| Time: | 15:48 UTC |
| Type: |  Fokker 70 |
| Owner/operator: | Austrian Airlines |
| Registration: | OE-LFJ |
| MSN: | 11532 |
| Year of manufacture: | 1995 |
| Fatalities: | Fatalities: 0 / Occupants: |
| Aircraft damage: | Unknown |
| Category: | Serious incident |
| Location: | Dnipropetrovsk International Airport (DNK/UKDD) -
 Ukraine
|
| Phase: | Standing |
| Nature: | Passenger - Scheduled |
| Departure airport: | Dnipropetrovsk International Airport (DNK/UKDD) |
| Wien-Schwechat Airport (VIE/LOWW) | |
| Investigating agency: | NBAAI |
| Confidence Rating: |  Accident investigation report completed and information captured |
Austrian Airlines flight OS676 was evacuated on the ramp at Dnipropetrovsk International Airport (DNK), Ukraine after smoke was observed in the cabin.
As a result of the investigation of the serious incident, the Commission determined that smoke in the AC cabin had been caused by:
- an excess of hydraulic fluid level in the reservoir of the hydraulic system No.2:
- a malfunction of the hydraulic system No.2 pressure valve due to a malfunction of the check pressure valve between the hydraulic system No. 2 and preliminary pressurization system;
- a malfunction of the check valve in the air supply system of pre-pressurization;
- infiltration of the vapors/fumes of hydraulic fluid in the air distribution and bleed (right part) system through the pressure valve and the return check valve of hydraulic system No.2:
- mixing vapors/fumes of hydraulic fluid with the hot air from the engine compressor and their probable contact with the heat exchanger unit of the air distribution system;
- initiation of an air conditioning system for heating.
Contributing factors.
Increasing the air supply now from the distribution and bleed (right part) system into the air conditioning system, as well as an increase of the engines rate by the PlC resulted in even greater smoke and triggered the smoke detector in the toilet cabin (alarm «LAVATORY SMOKE DETECTOR»).
METAR about the incident time (15:00 LT = 13:00Z)
UKDD 291430Z 06005MPS 0500 R08/0600N +SN VV000 M01/M02 Q1023 08590530 TEMPO 0300 +SN FZFG
UKDD 291400Z 06005MPS 0400 R08/0650N +SN VV000 M01/M02 Q1022 08590530 TEMPO 0300 +SN FZFG
UKDD 291330Z 07005MPS 0350 R08/0500U +SN VV000 M01/M02 Q1023 08590530 TEMPO 0300 +SN FZFG
UKDD 291300Z 07005MPS 0300 R08/0350N +SN VV000 M01/M02 Q1023 08590530 NOSIG
UKDD 291230Z 06005MPS 0550 R08/0750N +SN VV001 M01/M02 Q1023 08590530 TEMPO 0400 +SN OVC001
Accident investigation:
 |
|
Sources:
https://www.bmk.gv.at/dam/jcr:c92b59c1-b01e-4e37-8706-ded198f75fdc/141129_oe_lfj_fokker_dnk.pdf
History of this aircraft
Other occurrences involving this aircraft
| 7 April 2023 | VH-NUU | Alliance Airlines | 0 | Brisbane |  |
non |
Media:
Austrian Airways flight 676 Dnipropetrovsk to Vienna - we didn't get v far. Smoke in cabin b4 take-off. pic.twitter.com/cyeuKDoPrP
— Harry Fawcett (@harryjfawcett) November 29, 20143 hrs on Dnipro runway waiting for snow to stop. Then smoke in the cabin b4 take off. Staying in #Ukraine. pic.twitter.com/omgE2HiweT
— Harry Fawcett (@harryjfawcett) November 29, 2014Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 29-Nov-2014 17:51 | harro | Added |
| 29-Nov-2014 17:53 | harro | Updated [Embed code, Narrative] |
| 20-Feb-2021 15:12 | KagurazakaHanayo | Updated [Source] |
| 20-Feb-2021 15:17 | harro | Updated [Time, Narrative, Accident report] |
Corrections or additions? ... Edit this accident description
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