TM 1-1520-240-MTF
4-25
g. Allow conditions to stabilize and record the
following:
(1) FAT.
(2) PA.
(3) RRPM.
(4) ENG PTIT.
(5) N1.
(6) TRQ.
(7) FF.
h. Recover engine not being tested by placing
the ENG COND lever to FLT position.
(1) Engine passes test if the PTIT recorded
in paragraph K.g.(4) is less than or
equal to the MCPC temperature limit
from figure 5-13 and the maximum
continuous N1 speed from figure 5-14
(Refer to Section V.) is not exceeded.
(2) Record the TEMP MARGIN VALUE by
subtracting the recorded PTIT found in
paragraph K.g.(4) from the MCPC
temperature limit from figure 5-13.(e.g.
Recorded PTIT is 775. 806-775=31
TEMP MARGIN VALUE).
i. Repeat steps a. through h. for engine not
previously tested.
j. If engine fails use Maximum Continuous
Power Check (MCPC) follow the steps
below.
(1) Continue retarding the ECL and/or
raising the THRUST CONT lever, if
required, to obtain minimum TRQ
while ensuring maximum PTIT or
maximum N1 of figures 5-14 and 5-13
are not exceeded.
