Failure Of Fuel Transfer Pumps; 270-L1Ter Fuel Rsv - Kazan Helicopters Mi-17-1V Flight Manual

M,,·17·1B. Flight manual
" Service fuel tank pump failed ".
(2) Crew's actions
(a) Continue fulfilment of the mission upon failure of the fuel booster
pump. Normal operation of the engines is ensured in this case by
the AI...\H-70 engine-driven fuel pumps.
6.10.2. Failure of Fuel Transfer Pumps
(1) Indications
(a) The LEFT FAIL (nEBbllll 6AK HE PA60TAET) or RIGHT FAIL
(nPABbllll 6AK HE PA60TAET) annunciator or both of them go on.
(b) The PLil-65 information reporting system gives the voice warning:
" Main fuel tank pumps failed ".
(c) Untimely depletion of the service tank fuel.
(2) Crew's actions
(a) In case of failure of one fuel transfer pump (one LEFT FAIL
(nEBbllll 6AK HE PA60TAET) or RIGHT FAIL (nPABbllll 6AK HE
PA60TAET) annunciator goes on), continue fulfilment of the mis-
sion. Under this condition the fuel is transferred to the service tank
by one fuel transfer pump operating.
(b) In case of failure of both transfer pumps (for example, with the heli-
copter electrical power system de-energized) fuel is not transferred
from the main tanks to the service tank and only 320 liters of fuel
contained in the service tank can be used. With the service tank
fuel supply depleting assess the possibility to land on the destina-
tion or alternate aerodrome, or a selected field and make a decision
to land.
Note: A fuel quantity of 320 liters is adequate for flight during 21
min at an altitude of 500 m and 220 km/h lAS over a dis-
tance of 70 km, and for vertical landing.
6.11. 270-L1TER FUEL RSV (OCTAnOCb 270 n) annunciator illumination
(1) Indications
(a) The PLil-65 information reporting system gives the voice warning:
"Emergency fuel reserve".
(2) Crew's actions
(a) Upon illumination of the 270-L1TER FUEL RSV (OCTAnOCb 270
Jl)
annunciator proceed as follows:
1) Check the amount of fuel by reading the fuel quantity indicator.
2) Assess the possibility to reach the destination point bearing in
mind that the 270-liter fuel reserve is adequate for flight during
17 min at an altitude of 500 m and an airspeed of 220 km/h over
a distance of 55 km, and for vertical landing.
3) Make a decision either to continue flight or land on the alternate
aerodrome (a selected field).
4) Control the helicopter smoothly, execute only coordinated turns
avoiding slipping and skidding to prevent ingress of air into the
fuel system and spontaneous shutdown of the engines.
(b) The 270-L1TER FUEL RSV (OCTAnOCb 270 n) annunciator iIIumi-
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