ENGINE RUNUP – PILOT (CONT)

TM 1-1520-238-MTF 2-62 PROCEDURE TROUBLESHOOTING REFERENCE ENGINE RUNUP – PILOT (CONT) CAUTION Delaying decrease of PWR lever may re- sult in an engine/rotor overspeed. a. ENG 1 PWR lever – LOCKOUT. Note N_p/N_r/N_G increase. Then immediately retard ENG 1 PWR lever to a position midway between FLY and IDLE. CAUTION To avoid engine damage, do not operate engine steady-state between 24% – 38% N_p or in the 57% – 72% N_p range. b. NO. 1 PWR lever – Advance to a position where both engine torques are matched at 100% N_p. Continue advancing until ENG 1 torque is approximately 10% greater than ENG 2 and an increase in ENG 1 N_p is noted. c. NO. 1 PWR lever – Slowly advance above 100% N_p until HIGH RPM warning light illuminates. d. NO. 1 PWR lever – IDLE. Verify N_G is at idle speed. e. NO. 1 PWR lever – FLY. Verify ECU is reset.