. No restrictions are imposed when JP-4 fuel is used
b. JP-5, JP-8, Jet A
and Jet A-1
. Operations with these fuels are restricted to ambient temperatures of -32 C (-25 F) and above. If fuel other than JP-4 is used, a deceleration check must be performed prior to first flight of the day. If autorotations are to be performed, a decleration check will be done prior to each flight. Refer to Paragraph 8-18.
NOTE: Engine starting difficulties may be encountered if any fuel other than JP-4 is used at ambient temperatures below +5 C (+39 F).
- c. Emergency Fuel Aviation gasoline (MIL-G-5572) without Tricreasyl Phosphate (TCP).
- (1) The helicopter shall not be flown when emergency fuel has been used for a total accumultaed time of 6 hours. Entry in remarks section of DA Form 2408-13-1 is required for each time emergency fuel is used.
- (2) Practice autorotation is prohibited using emergency fuel