Seems pilot and Grandson took off from West of Ottawa bound for somewhere near the centre of the universe (YYZ), sqawking 1200 but not talking to anyone. Grandson started to feel airsick, saw a big mass of concrete below him and landed!!!
ex-egll
Little more info
At approximately 1936Z, Toronto Tower observed a primary target change to a 1200 code - no mode C - about 2 miles northwest of the airport. No ATS agency was in contact with the a/c.
The a/c was observed visually and on radar to proceed in a southwest direction and then turn on to what appeared to be a left base for rwy05 about 1.7 miles west. Traffic was passed to WJA560 on final rwy05.
The pilot of WJA560 reported a TCAS on the target and a visual sighting of the aircraft above him. The unknown passed about 1/2 mile in front of WJA560 and proceeded on left base for the 06L/06R combination, landing on rwy06R at 1940Z. Two arrivals on 06L were overshot due to the unknown.
Airport staff intercepted the unknown a/c and led it to an FBO from where the pilot called the ACC. He reported that C-FXCH had left Smith's Falls VFR to Ethel, Ontario (near Goderich) and encountered more headwind than anticipated, resulting in a decision to stop for fuel. In the Aliston area well north of Toronto, he used his GPS to find the closest airport, but did not recognize the identifier NC3 (Brampton.) He flew towards the nearest airport, and then his grandson (sick due to the bumpy ride)
spotted a runway and he flew towards it. He realized when he got in closer that it was probably Toronto LBPIA, but didn't know the frequencies to use. At this point he turned on his transponder and carried out an approach to a rwy, at all times watching carefully.
ex-egll