All cases coded PE-1A/B, have been evaluated as being the possible sighting of one or more Civil aircraft. For more information on the LUFOIN evaluation system, or on this particular type of device, click either on LUFOIN Codes or Civil/commercial aircraft.

Prior To 1954| 1954-1977 | 1978 | 1979-1993 | 1994-2003 | 2004-2011

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