PART IV - EMERGENCY HANDLING

       (vii) To raise the undercarriage on the ground in an
             emergency following normal selection, rotate and
             press the normal UP selector button.  It must not
             be used in this way to retract the undercarriage in
             the air as there is a risk of the legs being retracted
             when not fully extended and the leg fairings may be
             damaged.  If the UP button cannot be pressed in
             normally after take-off, the wheels must be left down
             and the aircraft landed.

   (b) Flaps

        (i)  If electrical or hydraulic supply failure has occurred
             the flaps may be lowered, fully down only, by pull-
             ing out the emergency lowering control after first
             pushing in the central knob.  If the electrical supply
             has failed, only the hydraulic fluid in the lower end
             of the jacks will be jettisoned when the emergency
             is used.
                          
        (ii) If the electrical and hydraulic supplies are normal
             provided that wind conditions are favourable and
             runway length is adequate, it is recommended that
             a flapless landing in Power should be made (see
             para. 98) because it is not possible to isolate the
             flap hydraulic lines from the remainder of the
             hydraulic system, and all hydraulic fluid will be
             jettisoned when the emergency lowering system is
             used.  Manual reversion will then follow.
             
   96.  Landing with an undercarriage unit not locked down
   
        NOTE.-Experience has shown that these techniques
              cause minimum damage to the aircraft and none
              to the pilot.
              
   (a)  Both main wheels only locked down
   
            (i)   Use up as much fuel as is safe in order to move the
                  C. of G. as far aft as possible.  Unless circumstances
                  dictate otherwise land on a runway.

            (ii)  Check harness tight and locked.
            
            (iii) Select hood open when crossing the threshold.

94