What was found
FAT - FLT 4750 - THE LT ENGINE RPM INDICATION FELL FROM 100 PERCENT TO 98 PERCENT, WOULD NOT RESET OVER 98.5 PERCENT RPM. MAINTENANCE REPLACED LT RPM GAUGE GROUND RUNS REVEALED NORMAL OPERATION. ALL ENGINE PARAMETERS NORMAL. (Z)
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
FAT - FLT 4750 - THE LT ENGINE RPM INDICATION FELL FROM 100 PERCENT TO 98 PERCENT, WOULD NOT RESET OVER 98.5 PERCENT RPM. MAINTENANCE REPLACED LT RPM GAUGE GROUND RUNS REVEALED NORMAL OPERATION. ALL ENGINE PARAMETERS NORMAL. (Z)