What was found
WHEN LT ENG IS GND IDLE LT DUCT PRESS IS BELOW RT DUCT PRESS & LT PACK TURNS OFF.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
WHEN LT ENG IS GND IDLE LT DUCT PRESS IS BELOW RT DUCT PRESS & LT PACK TURNS OFF.