SkyUp B738 near Warsaw on Jan 3rd 2024, loss of cabin pressure
Last Update: February 5, 2024 / 18:48:48 GMT/Zulu time
Incident Facts
Date of incident
Jan 3, 2023
Classification
Incident
Cause
Loss of cabin pressure
Airline
SkyUp
Departure
Tallinn, Estonia
Destination
Hurghada, Egypt
Aircraft Registration
UR-SQP
Aircraft Type
Boeing 737-800
ICAO Type Designator
B738
A replacement Boeing 737-800 registration UR-SQB resumed the flight after about 15 hours and reached Hurghada with a delay of about 16 hours.
The occurrence aircraft was still on the ground in Warsaw about 19 hours after landing.
Polands PKBWL delegated the investigation to Ukraine's NBAAI, who rated the occurrence a serious incident and opened an investigation. The NBAAI reported the aircraft was at FL360 when a depressurization occurred, the passenger oxygen masks were automatically released. The crew performed an emergency descent to FL140 and subsequently landed in Warsaw. There were no injuries.
On Feb 5th 2024 Ukraine's NBAAI released their preliminary report summarizing the sequence of events:
During climb and crossing the FL335, a warning for automatic pressure control system failure was triggered. The crew performed an emergency checklist and switched to manual control of the pressure control system. After reaching FL 360, the pressure control system was recovered in manual mode, however it was not functioning stable. The crew requested Riga FIR dispatcher for the permission to descend to FL 320. To coordinate the descend permission, Riga FIR dispatcher transferred the crew to the frequency of the Vilnius FIR sector. At the same time, the warning for exceeding altitude of 10,000 feet was triggered. The crew performed an emergency checklist, filed a distress signal, and reported on emergency descent to FL140. Due to the loss of pressure, the oxygen masks were automatically activated in cabin. During descend, the crew managed to recover control of the pressure system in manual mode and reduce the altitude in the cockpit to less than 10,000 feet. PIC decided to divert to the alternate aerodrome Warsaw (Poland). After burning off fuel at the holding area, in order to reduce maximum landing mass, the crew made a safe landing at the Warsaw airfield. As a result of the serious incident, no one was injured.
Incident Facts
Date of incident
Jan 3, 2023
Classification
Incident
Cause
Loss of cabin pressure
Airline
SkyUp
Departure
Tallinn, Estonia
Destination
Hurghada, Egypt
Aircraft Registration
UR-SQP
Aircraft Type
Boeing 737-800
ICAO Type Designator
B738
This article is published under license from Avherald.com. © of text by Avherald.com.
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