PART 1V-EMERGENCY HANDLING

     83.  Action in the event of engine fire

          If an engine fire warning light comes on, close the throttle
          immediately, then set:-

          H.P. cock			OFF
          L.P. cock			Off
          L.P. pump			Off

          Reduce speed to a practical minimum.  The press the
          extinguisher button.  Should the fire persist, abandon the
          aircraft.  The engine must not be restarted., owing to the risk
          of a further fire.

     84.  Emergency operation of undercarriage, flaps and airbrakes

     (a)  Hydraulic failure

          If the starboard engine or the hydraulic pump fails and the
          hydraulic circuit has not been used since failure, the
          hydraulic accumulator should have sufficient residual pres-
          sure to lower both the undercarriage and flaps when these
          services are selected.  If there is insufficient pressure, due
          to the prior use of the airbrakes, any of the hydraulic
          services may be operated by using the handpump.  Little
          resistance is felt when the handpump is used, until the
          selected service is fully extended.  The nosewheel will not
          lower fully at speeds of 160 knots and above.
          
     (b)  Undercarriage selector lever jamming
     
          If the undercarriage selector lever jams, it may be due to
          hydraulic back pressure sticking the rotary valve.  Relief is
          provided by exhausting the hydraulic system.  The star-
          board engine should be throttled back, speed reduced and
          the airbrakes or flaps operated until the selector is free.  If
          this proves ineffective, flame out the starboard engine and
          operate the sirbrakes.

     (c)  Ground-locking with undercarriage up

          If, after selecting DOWN, the port undercarriage is slow
          to lower, the ground-lock may come into action on the
          compressed oleo leg and the selector lever will be locked
          down with the port leg locked up.  It will be necessary to
          operate the ground-lock override before the lever can be
          freed.  The lever should be selected DOWN in the
          usual way.

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