Transport Canada CF-2019-26

 
Mandates, for aircraft equipped with Scott 5500 or 5600 series portable oxygen bottles with certain upper bracket part numbers, the installation of a modified upper bracket and new middle bracket on all affected portable oxygen bottle installations to improve portable oxygen bottle accessibility. Bombardier discovered that easy removal of the portable oxygen bottle from its support bracket may not always be possible on some portable oxygen bottle installations due to the latch of the upper bracket assembly catching on the pressure gauge tube or on the pressure gauge bezel of the portable oxygen bottle. The portable oxygen bottle is required to be accessible for use in emergency situations when a flight attendant is on board.