A.P. 4099J.-P.N.
Pilots's Notes
PART V
EMERGENCY HANDLING
79. Engine failure in flight
(a) Mechanical defect
If the engine faits due to an obvious mechanical defect,
set:-
Throttle SHUT.
H.P. and L.P. cocks SHUT.
Booster pump Off.
Non-essential electrical ser- Off.
vices
Do not attempt to relight.
(b) Sudden drop in engine r.p.m.
If a sudden inexplicable drop in engine r.p.m. occurs,
close the throttle and set the isolating switch ON. (If
the isolating switch is not switched to ON within 4
seconds there is a probability of flame extinction.) Once
the switch has been set to isolate it must be left there
and the engine opened up slowly to the desired r.p.m.
Idling r.p.m. will be high and landing must be carried
out with caution.
(c) Flame out
(i) Should the failure be caused by mishandling, set:-
Throttle SHUT.
H.P. cock SHUT.
Non-essential electrical Off.
services
defect A.L.1
(ii) If flame-out occurs as a result of a fuel system deflect,
e.g., engine pump B.P.C. or from a servo system
defect proceed as at (i) above and switch ON the
isolating switch, leaving it on for the remainder of
the flight. 59
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