There is quite precise tracking and reporting of power outages in this area. Here is a record of the outage at the airport earlier this morning:
Nova Scotia Power Outages - Bedford/Sackville
Outage Area
Halifax Stanfield International Airport & Areotech Buisness Park (105 impacted)
Cause
Caused by damage to our overhead equipment
Start Date/Time
March 29, 2015 @ 12:30 AM
End Date/Time
March 29, 2015 @ 1:49 AM
Duration
1 hours 19 mins
The timing does seem to match very closely.