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| Title: | Depressurization in Cruise, Aer Lingus Boeing 737-500, EI-CDD, north of Paris, December 9, 2000 |
| Micro summary: | Mechanical failures result in a pressurization failure on this Boeing 737-500. |
| Event Time: | 2000-12-09 at 1345 UTC |
| File Name: | 2000-12-09-IE.pdf |
| Publishing Agency: | Air Accident Investigation Unit (AAIU) |
| Publishing Country: | Ireland |
| Report number: | 2003/012 |
| Pages: | 8 |
| Diversion Airport: | Charles De Gaulle International Airport (Roissy Airport), Paris, France |
| Site of event: | North of Paris, FL370 |
| Departure: | Dublin Airport, Dublin, Ireland |
| Destination: | |
| Airplane Type(s): | Boeing 737-500 |
| Flight Phase: | Cruise |
| Registration(s): | EI-CDD |
| Operator(s): | Aer Lingus |
| Type of flight: | Revenue |
| Occupants: | 98 |
| Fatalities: | 0 |
| Serious Injuries: | 0 |
| Minor/Non-Injured: | 98 |
| Other Injuries: | 0 |
| Diverted to: | Charles De Gaulle International Airport (Roissy Airport), Paris, France |
| Executive Summary: | While cruising north of Paris at FL 370, the aircraft experienced a pressurisation failure. After declaring a “MAYDAY”, the crew carried out an emergency descent to FL 100. Diverting to Charles de Gaulle (LFPG) Paris, the aircraft landed at 14.20 hrs without further incident. There were no reported injuries to crew or passengers. (b) Causes A combination of factors, including failure of the CPC in AUTO-mode and a defective outflow valve, coupled with an intermittent supply pack fault could have given rise to this loss of pressurisation. |
| Learning Keywords: | Systems - Pressurization |
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