Event Details

Title:Pressurization emergency, Boeing 737-548, Aer Lingus, EI-CDB
Micro summary:An apparent failure of the pressurization system results in a decision to return to the origin airport.
Event Time:2000-12-07 at 0715 UTC
File Name:2000-12-07-IE.pdf
Publishing Agency:Air Accident Investigation Unit (AAIU)
Publishing Country:Ireland
Report number:2001/014
Site of event:Climb-out from Cork Airport
Departure:Cork International Airport, Cork, Ireland
Airplane Type(s):Boeing 737-548
Flight Phase:Climb
Operator(s):Aer Lingus
Type of flight:Revenue
Serious Injuries:0
Other Injuries:0
Executive Summary:Shortly after take-off from Cork Airport (EICK), the flight crew were alerted to a pressurisation problem. Continuing to climb in an un-pressurised condition, the aircraft reached FL 142 before a decision was made by the Captain to return back to the airport of departure. The aircraft landed without further incident at 0755 hours. There were no injuries. The investigation found that the pressurisation system had not been correctly configured for flight.

(b) Causes
Failure of both flight crew members to complete and confirm their “After-start” and “After take-off” normal checklist for air conditioning and pressurisation and the lack of a thorough analysis of the initial “Auto Fail” and “Cabin Altitude” warning, caused the aircraft to be operated without pressurisation.
Learning Keywords:Operations - Checklists/Procedures
Systems - Pneumatics
Systems - Pressurization
Systems - Pressurization - Bleeds-off Pressurization Emergency
Close match:Cabin depressurization, Westjet Airlines, Ltd., Boeing 737-200, C-FGWJ, Kelowna, British Columbia, 120 nm, NE 12 June 2000


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