Incident at GOOSE BAY NL (CYYR)

Summary

2005-08-30: KLM685, Boeing 747-400, enroute from Halifax (CYYZ) to Amsterdam (EHAM) pilot declared 'PAN-PAN-PAN' advised area control centre Montreal of hydraulic problem and requested diversion to Goose Bay. Aircraft landed safely in Goose Bay at 19:20Z. TSB Case Closed
2005-08-30: Aviation Operations Update: Serious hydraulic problem affecting engines 1,2 & 4, unsure brakes would work on landing. Aircraft landed on runway 08 without incident, passengers will be offloaded and taken to local accommodations for the night, charter flight carrying maintenance crew for the plane will arrive in YYR later tonight to assess the problem
2005-08-31: Maintenance & Manufacturing Update: The AMEs reported that the crew noticed a drop in pressure on Priority System #4, they selected System #1 and noticed a drop in pressure, so they selected System #2 and noticed a drop in pressure, they then selected System #3 and no pressure drop was noticed as system # 3 does not route pressure through the broken line. The problem was found to be a hole in a flex line (P/N AS154A04EE0480B) in the break system on Priority System # 4. A replacement aircraft is being ferried to Goose Bay to take the passengers and deliver the replacement flex line. They will replace the line and the aircraft will be returned to service. To the best of their knowledge the flex line is not a life limited part and during a gear overhaul it would be inspected an reinstalled (this is based on the Air Canada system)
2005-08-31: TSB Update: A05A0113: The Boeing 747-400 aircraft, operating as KLM685, was enroute from Toronto to Amsterdam when the crew noticed that the hydraulic fluid level in the #4 system was decreasing. The crew secured the #4 system and selected the #1 system, followed by the #2 system. They observed that fluid levels in these systems were also starting to decrease when selected. The crew then declared a PAN-PAN-PAN and requested a clearance for a diversion to Goose Bay. The aircraft was cleared as requested and landed in Goose Bay without further incident. Maintenance found a fractured brake line on one of the main landing gear. The hydraulic reservoirs for the #1,2 & 4 systems were still approximately half full when the aircraft landed. The #3 system reservoir, which is isolated from the brake system, was still full.
2005-08-30: KLM685, Boeing 747-400, enroute from Halifax (CYYZ) to Amsterdam (EHAM) advised area control centre Montreal of hydraulic problem and requested diversion to Goose Bay. Aircraft landed safely in Goose Bay at 19:20Z. TSB Case Closed

Details


CADORS Number 2005A0606
Occurrence Type Incident
Reported By NAV CANADA
Occurred At 2005-08-29 - 18:13
Day or Night? Day-time
Fatalities 0
Injuries 0
Aerodrome ID CYYR
Aerodrome Name GOOSE BAY NL (CYYR)
Geographic Location Newfoundland and Labrador, Canada, North America, Atlantic Region, 5652N/07440W 34,000 ft.
TSB Occurrence Number A05A0113
TSB Class of Investigation Class 5
AOR Number 60213-V1
Reported By NAV CANADA
Categories System/component failure or malfunction [non-powerplant],Other
Events



Aircraft Details (1 aircraft)

Type
Canadian Registration
Foreign Registration
Country of Registration
Occurrence Type Incident
Owner
Operator K.L.M. ROYAL DUTCH AIRLINES (358) Commercial
Make  Silhouette image of BOEING
BOEING
Model 747 400 SERIES
Year Built
Engine Type Turbo fan
Engine Make
Engine Model
Gear Type Land
Private No
Amateur Built No
Flight Number KLM865
Flight Rule
CARS Subpart
Phase of Flight Cruise
Damage Unknown
Fatalities 0
Injuries 0
Events Diversion,Declared emergency/priority,Hydraulic problem

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