As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: PILOT REPORTS FROM DECENT UNITL 2000' LEFT ENGINE N1 RAGED FROM 10 TO 27 DIFFERENCE WITH ALL GAUGES MATCHING AND ADVERSE YAW. MAINTENANCE FOUND COMPRESSOR BLEED PRESSURE MUSCLE LINE NEAR MAIN ENGINE CONTROL LOOSE AND RE-SECURED. PERFORMED FLIGHT/GROUND IDLE SOLENOID TEST IAW AMM 73-21-04 AND IDLE SPEED TEST IAW AMM 71-00-00 TEST 3. AIRCRAFT OK FOR SERVICE