Parking airplanes (and furloughing) due to passenger demand or loss of revenue / profits is considered “under company control”...

23.C.4

The term “circumstances beyond the control of the Company” includes, but is not limited to, a natural disaster; labor dispute (strike); grounding of a substantial number of the Company’s aircraft by a government agency; reduction in flying operations because of a decrease in available fuel supply or other critical materials due to either governmental action or commercial suppliers being unable to provide sufficient fuel or other critical materials for the Company’s operations; revocation of the Company’s operating certificate(s); war emergency; owner’s delay in delivery of aircraft scheduled for delivery or manufacturer’s delay in delivery of new aircraft scheduled for delivery.

...The term “circumstances beyond the control of the Company” shall not include the price of fuel or other supplies, the price of aircraft, the state of the economy, the financial state of the Company, the relative profitability or unprofitability of the Company’s then-current operations.