ASN Wikibase Occurrence # 213256
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| Date: | Friday 13 July 2018 |
| Time: | 20:45 UTC |
| Type: |  Boeing 737-8AS (WL) |
| Owner/operator: | Ryanair |
| Registration: | EI-ENM |
| MSN: | 35038/3528 |
| Year of manufacture: | 2011 |
| Fatalities: | Fatalities: 0 / Occupants: 189 |
| Aircraft damage: | None |
| Category: | Serious incident |
| Location: | near Nancy -
 France
|
| Phase: | En route |
| Nature: | Passenger - Scheduled |
| Departure airport: | Dublin Airport (DUB/EIDW) |
| Zadar Airport (ZAD/LDZD) | |
| Investigating agency: | BFU |
| Confidence Rating: |  Accident investigation report completed and information captured |
Ryanair flight FR7312 was en route from Dublin to Zadar at an altitude of 37000 feet, when there was a rapid decompression in the cabin due to an error in one of the Cabin Pressure Controllers (CPC). This resulted in the opening of the Outflow Valve (OFV). While the crew conducted an emergency descent with a manually closed OFV, the cabin pressure increased to the aircraft’s maximum differential pressure. At 9,000 ft AMSL, the aircraft levelled off and the OFV was opened manually which resulted in a second rapid decompression. Subsequently, the airplane landed at Frankfurt-Hahn Airport.
33 Passengers suffered minor injuries.
Causes
The occurrence was caused by a fully opened OFV commanded by the ECS during cruise flight at FL 370.
The malfunction was caused by a Single Event Upset in one of the Cabin Pressure Controllers.
In this case, the system redundancy of the cabin pressure control system was not sufficient to prevent rapid decompression.
Accident investigation:
 |
|
Sources:
http://www.spiegel.de/panorama/ryanair-maschine-macht-sicherheitslandung-in-frankfurt-hahn-a-1218413.html
_________
https://www.flightradar24.com/data/flights/fr7312#1d1dec8f
History of this aircraft
Other occurrences involving this aircraft
| 10 August 2023 | EI-ENM | Ryanair | 0 | near Palma |  |
non |
| Near miss with other aircraft | ||||||
Media:
Amazing video from Mr. Kevin Burke. You can see how terrified we were. No-one speaking, no-one moving. Silence and just silence.#Ryanair #nightmare pic.twitter.com/YFYRiORy2s
— Minerva Galvan (@Maingd) 14 juillet 2018
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 14-Jul-2018 09:04 | sutu5 | Added |
| 15-Jul-2018 04:05 | Iceman 29 | Updated [Source, Embed code] |
| 09-Aug-2022 19:50 | harro | Updated [Embed code, Narrative] |
| 29-Sep-2023 09:34 | harro | Updated [[Embed code, Narrative]] |
Corrections or additions? ... Edit this accident description
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