TM 55-2840-254-23
1-107 TEST ENGINE (AVIM) (Continued)
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c. Retard N1 master hydronic control to ground idle (10 to 15 degrees) and allow engine temperatures
and speed to stabiIize.
d. Advance N1 and N2 master hydronic controls to maximum power setting determined in graph below.
Run engine at maximum power for 2-1/2 minutes; then record a short reading.
Guide to N2 Speed Selection Versus Ambient Temperature
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