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Question 1

LOX Card (TMU-27/M) Service Pressure?Reference: (MPC 121401.0) P.5

Answer 1

40 (+/- 5) psiClose service valve when steady stream of LOX flows from purge adapter/overboard vent.

Question 2

LOX Servicing using TMU-27/MReference: (MPC 121401.0) P.4

Answer 2

NOTE: If oxygen system has been empty for more than 2 hours and system pressure depleted, O2 system SHALL be purged.-Front of cart(tow hitch end) is facing towards the aft end of aircraft.- Control panel positioned perpendicular to servicing port.- service hose free of bends/kinks.

Question 3

Parking/Storage of LOX Cart?Reference: (MPC 121401.0) P.3

Answer 3

25’ - Structure w/fire resistant or non-combustible50’ - Structure w/combustion or smoking area75’ - Aircraft parked/fueling and defueling areaNOTE: LOX boil-off during storage can be considerably reduced if storage tank is placed so that the rear end is higher than the front end, thus, in effect, elevating the piping.