FAA Approved Airplane Flight Manual Supplement

Hawker Beechcraft King Air 300/300LW 190-00716-02 Rev.3
Page 20 of 167 FAA APPROVED
(k) To account for power setting accuracy and steady state fluctuations, inadvertent propeller RPM
excursions up to 1735 RPM are time limited to 7 minutes.
(l) When within transient RPM values, the torque indicator will display green digits and a white pointer.
After 7 minutes above 1735 RPM, or after 20 seconds between 1735 and 1870 RPM, the digits will
flash alternating red and white background with a flashing red pointer for 5 seconds. After 5
seconds of flashing, the indication is steady white digits/red background and the pointer is red.
Above 1870 RPM, the indication immediately begins flashing for 5 seconds before displaying steady
white digits on a red background and a red pointer.
(m) Oil temperature limits are -40ºC and +110 ºC. However, temperatures between 99ºC and 110 ºC
are limited to a maximum of 10 minutes. When between 99ºC and 110 ºC, the oil temperature
indicator will display black digits on a yellow background for 10 minutes. After 10 minutes, or
immediately if above 110°C, the indication will immediately flash alternating red and white
background with a flashing red pointer for 5 seconds. After 5 seconds of flashing, the indication is
steady white digits/red background and the pointer is red.
Below 0°C to -40°C, the digital indication will be black digits on a yellow background. Below -40°C,
the digital indication will be white digits on a red background.
(n) Normal oil pressure is 90 to 135 psi at gas generator speeds above 72%. With engine torque below
62%, minimum oil pressure is 60 psi at normal oil temperature (60° - 70°C).
Oil pressures under 90 psi are undesirable. Under emergency conditions, to complete a flight, a
lower oil pressure limit of 60 psi is permissible at a reduced power, not to exceed 62% torque. Oil
pressures below 60 psi are unsafe and require that either the engine be shut down or a landing be
made at the nearest suitable airport, using the minimum power required to sustain flight.
Fluctuations of plus or minus 10 psi are acceptable.
During extremely cold starts, oil pressure may reach 200 psi (red triangle). In flight, oil pressures
above 135 psi but not exceeding 200 psi are permitted only for the duration of the flight.