TURBINE ENGINE ANALYSIS CHECK (TEAC) (Continued)
Engine trim is acceptable as all conditions below
PTIT is between 860 and 890 C.
This note applies only to engines with
serial numbers of LE 71850 or greater.
If PTIT is below 860 C, but between
840 and 860 C, do the following:
(1) Check the thermocouple harness
assemblies per TM 55-2840-254-23,
(2) Check the power turbine inlet
temperature indicator per
TM 55-1520-254-23, Task 8-2.
(3) Check the power turbine inlet
temperature system per
TM 55-1520-240-T, Task 8-5.
This engine is acceptable if no
discrepancies are observed and PTIT
indicator reading is at least 840 C.
N1 and FAT lines entered on chart in step
16 must be within 5 percent but not exceed
the N1 curve.
Recorded torque exceeds the value
determined in step 17b.
If engine trim is acceptable, perform steps 19
thru 26, then go to step 29. If not accepted,
perform steps 19 thru 28.