GR chartered in two 737's to clear the backlog on Friday, one from Titan & the other from Aerovista. A Cello 146 was used the previous day along with company TR72's. LCY was cancelled all day on Thursday as G-HUET was tech & spares didn't arrive until (I believe) Friday morning, an ATR72 operated the morning GCI-LCY-GCI flight that day.