What was found
LGA - FLT 4501 - AFTER TAKEOFF, THE LEFT AHRS FAILED. AIRCRAFT RETURNED TO LGA. MAINTENANCE REPLACED THE LEFT AHRS. SYSTEM TESTED GOOD. (X)
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
LGA - FLT 4501 - AFTER TAKEOFF, THE LEFT AHRS FAILED. AIRCRAFT RETURNED TO LGA. MAINTENANCE REPLACED THE LEFT AHRS. SYSTEM TESTED GOOD. (X)