Citation Excel (C560XL)
Flight Crew Multiengine; Flight Crew Instrument; Flight Crew Air Transport Pilot (ATP)
Aircraft Equipment Problem Less Severe
Air Traffic Control Issued New Clearance; Flight Crew Requested ATC Assistance / Clarification; Flight Crew Took Evasive Action
Aircraft
As we descended through approximately FL260; we heard a sudden sound of cabin air loss from behind us and both of us agreed to descend to a lower altitude. I could feel it in my ears too. Descending through approximately FL210; the air noise quit and the cabin pressure stabilized. We continued down to 11;000 as cleared by ATC and continued to our original destination without incident. I apologized to the passengers for the abrupt descent; but explained that we did it as an abundance of caution.
[Report narrative contained no additional information]
C560XL flight crew reported descending in response to a possible pressurization malfunction that corrected itself later in the flight.