As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FOUND MAINT LIGHT "ON" FAULT CODE 77-43023 ACTIVE #2 ENGINE. GROUNDED - YES. FOUND ENG #2 N1 SENSOR OUT OF RANGE EEC CHANNEL "A". ACCOMP ENG #2 IDLE SYSTEM TEST, TEST PASS REF B737-9 IFIM G77-00-00-810-960 & AMM 71-00-00-700-808 FAULT NOT ACTIVE MAINT LIGHT EXTINGUISHED.