What was found
RECEIVED GEAR DISAGREE AFTER T/O FROM BOS. RAN QRH, EMERGENCY DECLARED. A/C RETURNED BACK TO BOS LANDED SAFELY. INSPECTED A/C FOUND HYDRAULIC SYSTEM 3 ACMP 3A FAILED. REMOVED AND REPLACED 3A ACMP.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
RECEIVED GEAR DISAGREE AFTER T/O FROM BOS. RAN QRH, EMERGENCY DECLARED. A/C RETURNED BACK TO BOS LANDED SAFELY. INSPECTED A/C FOUND HYDRAULIC SYSTEM 3 ACMP 3A FAILED. REMOVED AND REPLACED 3A ACMP.