Incident at TORONTO / LESTER B. PEARSON INTL ON (CYYZ) (ATM - other)

Summary

1996-09-09: At 1541Z, the RDP channel B failed due to a lan problem. At 1656Z, after doing a "crash dump", channel B was returned to service. At 1838Z, channel B failed again due to a lan problem and would not come back up. At 1929Z, lan A was off-lined to replace a component. At 1938Z, the previous solution did not correct the problem so lan A was off-lined once more to replace the same component. At 2004Z, lan A was again taken off line to replace a transceiver. At 2031Z, both lan A and B were put on line and a cable problem was suspected and investigated. At 2130Z, the problem was determined to be a connector failure as opposed to a cable problem. At 2241Z, after repairs and diagnostics, the system was brought back to normal. Ops. Impact -- although this failure had no impact on th eusers of the system, Toronto ACC was operating on a single channel of the RDPS for approximately five hours with no assurances of the stability of the system.

Details


CADORS Number 1996O0394
Occurrence Type Incident
Reported By NAV CANADA
Occurred At 1996-09-08 - 22:14
Day or Night?
Fatalities 0
Injuries
Aerodrome ID CYYZ
Aerodrome Name TORONTO / LESTER B. PEARSON INTL ON (CYYZ)
Geographic Location Ontario, Canada, North America, Ontario Region, Toronto (LBPIA), Ontario
TSB Occurrence Number
TSB Class of Investigation
AOR Number
Reported By NAV CANADA
Categories ATM/CNS
Events ATM - other


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