Limitations
CSP-HE/HS-1
ROTORCRAFT FLIGHT MANUAL
MD 500
(Models 369HE/HS/HM)
Revision 6
2-12
FAA Approved
Emergency
Aviation Gasoline MIL−G−5572E.
MIL-G-5572 aviation gasolines containing Tri-Cresyl-Phosphate
(TCP) additives shall not be used. Use of MIL-G-5572E gasolines is
limited to a maximum of 6 hours of operation per engine overhaul
period and operation within safe conditions. (Ref. Figure 2-4).
When using alternate fuel mixtures or emergency fuels, the start
pump must be on until the engine is shutdown. (Ref. Figure 2-4).
Cold weather operations:
Fuels must meet anti−icing capability of JP−4 when operating at 4
°
C (40
°
F)
or less.
Refer to Section VII for additional cold weather fuel information.
Fuel filter:
Upon completion of the flight in progress, further flight is prohibited until
the fuel filter has been serviced following the illumination of the FUEL
FILTER caution light.
Fuel system purging:
Further flight is prohibited until the fuel system is purged (see HMI) fol−
lowing:
Engine flameout caused by fuel exhaustion.
Draining fuel from engine compartment fuel drains (if installed) without
the start pump on.
Engine shutdown using emergency fuel shutoff valve.
Motoring the helicopter engine without fuel in the fuel tank.
CAUTION
CAUTION
