Maintenance and Modifications
Regulators Note Loss of Cabin Pressure in Hawker Jets
The cabin pressure SAIB applies to Textron Aviation Hawker 750, 800, 800, 800XP, 850XP, and 900XP series jets, FAA says.

The FAA and EASA have issued safety bulletins warning operators of certain Hawker jets that duct and sleeve clamps on the air-cycle machine and water separator can become loose and lead to a potential loss of cabin pressure. This condition potentially affects Textron Aviation Hawker 750, 800, 800 (U-125A), 800XP, 850XP, and 900XP series aircraft.