FLIGHT IDLE LIMITS

Question 1

FLIGHT IDLE CTMT

Answer 1

300 - 540

Question 2

FLIGHT IDLE ISHP

Answer 2

1,100 (NOMINAL)

Question 3

FLIGHT IDLE % RPM

Answer 3

94.5 - 99.0

Question 4

FLIGHT IDLE G/B OIL PRESSURE

Answer 4

150 - 250 (4) (10)

(180 NORMAL)

(4) OPERATION BELOW 150 PSI WHEN RPM IS BELOW 100 PERCENT IS PERMITTED IF 150 PSI CAN BE MAINTAINED AT 100 PERCENT RPM. AT OPERATING OIL TEMPERATURE, A PRESSURE OF 100 PSI IS NORMAL AT THE LOW SPEED GROUND IDLE CONDITION. PRESSURE VALUES DOWN TO 25 PSI (RGB AND PS) ARE ACCEPTABLE AT LSGI ENGINE RPM.
(10) WHEN STARTING ENGINES, ENGINE OIL LOW LIGHT AND/OR HIGHER THAN NORMAL OIL PRESSURES MAY BE EXPERIENCED PRIOR TO ATTAINING NORMAL OIL TEMPERATURE. CLOSELY MONITOR PRESSURES ABOVE 250 PSI BECAUSE THE RELIEF VALVE MAY MASK AN IMPENDING OIL SYSTEM MALFUNCTION.

Question 5

FLIGHT IDLE P/S OIL PRESSURE

Answer 5

50 -60

(100 PERMITTED DURING START AND WARM-UP)

Question 6

FLIGHT IDLE OIL TEMPERATURE

Answer 6

50 - 90 (5)

(100 PERMITTED FOR 30 MINUTES) (12)

(5) USE MINIMUM POWER FOR OIL TEMPERATURE BELOW 0 C. MAXIMUM POWER IS 1000 ISHP FOR OIL TEMPERATURE BETWEEN 0 AND 50 C OR WHEN READY FOR T/O, 40 C AND INCREASING. IN FLIGHT 100 C IS PERMITTED FOR 5 MINUTES THEN 90 C IS MAXIMUM.
(12) DURING PROLONGED OPERATION IN LSGI, ENGINE OIL TEMPERATURE MAY EXCEED THE MAXIMUM LIMIT. ADVANCE POWER LEVERS TOWARD FLT IDLE UP TO 13 DEGREES TO INCREASE AIRFLOW THROUGH OIL COOLERS. TEMPERATURES MAY SPIKE WHEN OPERATING NEAR AIRCRAFT DUE TO HOT EXAUST GAS INGESTION.