Extract: Part 1, Section lll - S92 RFM
7.1 MAIN GEARBOX OIL SYSTEM FAILURE
Symptom:
MGB OIL PRES or MGB OIL HOT or MGB CHIP or ACC 1 CHIP or ACC 2 CHIP or MGB OIL PRES
GEARBOX OIL PRESSURE aural alert.
Confirming:The confirming steps only apply to low oil pressure or high oil
temperature. There are no confirming steps for chip indications.
Main gearbox oil pressure is less than 35 psi
or
Main gearbox oil temperature is greater than 130 degrees.
WARNING
BYP must be selected within 5 seconds after the MGB OIL
PRES warning has illuminated to ensure an adequate
quantity of oil remains in the gearbox.