Loss of pressurization Incident Boeing 737-36N C-GPNL, Monday 11 March 2024
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Date:Monday 11 March 2024
Type:Silhouette image of generic B733 model; specific model in this crash may look slightly different    
Boeing 737-36N
Owner/operator:Canadian North
Registration: C-GPNL
MSN: 28872/3082
Year of manufacture:1998
Fatalities:Fatalities: 0 / Occupants: 135
Other fatalities:0
Aircraft damage: None
Location:130 nm W From CYEG - Edmonton Intl - Edmonton -   Canada
Phase: En route
Departure airport:Edmonton International Airport, AB (YEG/CYEG)
Destination airport:Terrace Airport, BC (YXT/CYXT)
Investigating agency: TSB
Confidence Rating: Information verified through data from accident investigation authorities
Canadian North flight AKT1502, a Boeing 737-300,was in cruise at FL340 when the flight crew observed a cabin altitude warning light and verified that the cabin altitude gauge indicated approximately 12 000 feet. The flight crew actioned the quick reference handbook and after advising air traffic control began a descent and air turnback to CYEG. A PAN PAN was subsequently declared. During the descent cabin altitude was maintained between 10 000 feet and 11 000 feet. The crew requested a hold to burn fuel down to below the maximum landing weight, cancelled the urgency, and then proceeded to land without further incident.

The aircraft resumed service two days later.


TSB A24W0025

Revision history:

20-Mar-2024 21:01 ASN Added
20-Mar-2024 21:02 ASN Updated [Time, Cn, Source, Damage, Narrative]

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