Loss of pressurization Incident Boeing 737 MAX 8 C-GMEX,
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ASN Wikibase Occurrence # 347041
 
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Date:Friday 13 October 2023
Time:19:09 UTC
Type:Silhouette image of generic B38M model; specific model in this crash may look slightly different    
Boeing 737 MAX 8
Owner/operator:Air Canada
Registration: C-GMEX
MSN: 61243/7990
Year of manufacture:2021
Fatalities:Fatalities: 0 / Occupants: 173
Aircraft damage: None
Location:NE of Mexico City -   Mexico
Phase: En route
Nature:Passenger - Scheduled
Departure airport:Mexico City-Benito Juárez International Airport (MEX/MMMX)
Destination airport:Toronto-Pearson International Airport, ON (YYZ/CYYZ)
Confidence Rating: Information verified through data from accident investigation authorities
Narrative:
Air Canada flight AC990, a Boeing 737 MAX 8, reported a cabin decompression and oxygen masks deployed, approximately 30 minutes after departure from Mexico City Airport.
The crew delcared a MAYDAY and the flight descended to 8000ft. The decision was made to divert to Houston-George Bush Intercontinental Airport (KIAH), Texas. The aircraft landed without further incident, EMS met aircraft on arrival and no injuries were reported.
The L/H PACK Air conditioning computer (IASC) was replaced in accordance with AMM.

The aircraft was ferried to Windsor (YQG) on 16 October and it resumed regular service on October 18.

Sources:

TSB

Revision history:

Date/timeContributorUpdates
20-Oct-2023 16:41 harro Added

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