Westjet B738 near Calgary on Apr 25th 2012, hydraulic leak

Last Update: May 2, 2012 / 22:47:05 GMT/Zulu time

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Incident Facts

Date of incident
Apr 25, 2012

Flight number
WS-2204

Aircraft Registration
C-GWSR

Aircraft Type
Boeing 737-800

ICAO Type Designator
B738

A Westjet Boeing 737-800, registration C-GWSR performing flight WS-2204 from Edmonton,AB (Canada) to Puerto Vallarta (Mexico) with 94 people on board, was levelling off at FL280 climbing out of Edmonton about 100nm southsoutheast of Calgary,AB (Canada) when the crew received a engine #1 (CFM56) hydraulic pump low pressure indication. The crew climbed the aircraft to FL290, worked the relevant checklists and shut the hydraulic pump down and diverted to Calgary. While turning onto base leg the crew noticed the hydraulic quantity was showing 18% only, the crew configured the aircraft for landing early due to the possibility of loss of the hydraulic system and about 6nm from touch down requested emergency services on stand by. The aircraft landed safely on runway 16 about one hour after the onset of trouble.

The Canadian TSB reported emergency services reported hydraulic fluid leaking from the left hand engine. The engine was shut down and the aircraft taxied to the gate. Maintenance determined the #1 engine driven hydraulic pump case filter supply line had been improperly installed. The hydraulic supply line, return line, case drain filter, return filter, pressure filter and the hydraulic pump were replaced.

A replacement Boeing 737-800 reached Puerto Vallarta with a delay of 4.5 hours.
Aircraft Registration Data
Registration mark
C-GWSR
Country of Registration
Canada
Date of Registration
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Certification Basis
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TCDS Ident. No.
Manufacturer
Boeing
Aircraft Model / Type
737-8CT
ICAO Aircraft Type
B738
Year of Manufacture
Serial Number
Aircraft Address / Mode S Code (HEX)
Maximum Take off Mass (MTOM) [kg]
Engine Count
Engine Type
Main Owner
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Aircraft registration data reproduced and distributed with the permission of the Government of Canada.

Incident Facts

Date of incident
Apr 25, 2012

Flight number
WS-2204

Aircraft Registration
C-GWSR

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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