A quanto pare si... ma non c'è nulla di strano perché sul QRH (Quick Reference Handbook) del 737 non è mandatario atterrare al primo aeroporto disponibile. Se prendi l'ultima voce della cklist troverai: "The new course of action is based on weather, oxygen, fuel remaining and available airports. Use of long range cruise may be appropriate."
Poi non so le policy della Ryanair.
Quanto riportato nel QRH 737
CABIN ALTITUDE WARNING OR RAPID DEPRESSURIZATION
OXYGEN MASKS and REGULATORS. . . . . . . . . . . . ON, 100%
Crew communications . . . . . . . . . . . . . . . . . . . . . . . . Establish
PRESSURIZATION MODE selector . . . . . . . . . . . . . . . . . . MAN
OUTFLOW VALVE switch . . . . . . . . . . . . . . . . . . . . . . . CLOSE
If pressurization is restored, continue manual operation
to maintain proper cabin altitude.
Passenger signs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .ON
If cabin altitude is uncontrollable:
PASSENGER OXYGEN switch . . . . . . . . . . . . . . . . . . . . .ON
Activate passenger oxygen if cabin altitude exceeds or is expected to exceed 14,000 feet.
EMERGENCY DESCENT . . . . . . . . . . . . . . . . . . . . . . .Initiate
Accomplish the EMERGENCY DESCENT checklist if the airplane is above 14,000 feet MSL and control of cabin pressure is not possible, or cabin pressure is lost.
EMERGENCY DESCENT
EMERGENCY DESCENT . . . . . . . . . . . . . . . . . . . . . .Announce
The captain will advise the cabin crew, on the PA system, of impending rapid descent. The first officer will advise ATC and obtain the area altimeter setting.
ENGINE START switches . . . . . . . . . . . . . . . . . . . . . . . . CONT
THRUST levers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . CLOSE
Reduce thrust to minimum or as needed for anti-ice.
SPEED BRAKE . . . . . . . . . . . . . . . . . . . . . . . . FLIGHT DETENT
DESCENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Initiate
Target speed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Mmo/Vmo
If structural integrity is in doubt, limit speed as much as possible and avoid high maneuvering loads.
Level-off altitude . . . . . . . . . . . . . . . . . . . Lowest safe altitude or 10,000 feet, whichever is higher
SPEED BRAKE . . . . . . . . . . . . . . . . . . . . . . . . . DOWN DETENT
Smoothly lower the SPEED BRAKE lever and level off.
Add thrust and stabilize on altitude at desired airspeed.
CREW OXYGEN REGULATORS . . . . . . . . . . . . . . . . .NORMAL
Flight crew must use oxygen when cabin altitude is above 10,000 feet. To conserve oxygen, position the regulator to NORMAL.
ENGINE START switches . . . . . . . . . . . . . . . . . . . . As needed
The new course of action is based on weather, oxygen, fuel remaining and available airports. Use of long range cruise may be appropriate.
