What was found
AIR TURN BACK, DECLARED EMERGENCY AFTER TAKEOFF, TOWER REPORTED FROM GROUND VEHICLE CONTRAIL FROM LT ENGINE NR 1 CLIMBING THROUGH 12,000 FEET WE HAD A 600 POUND IMBALANCE. R &R HPT CLEARANCE CONTROL VALVE IAW MM.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
AIR TURN BACK, DECLARED EMERGENCY AFTER TAKEOFF, TOWER REPORTED FROM GROUND VEHICLE CONTRAIL FROM LT ENGINE NR 1 CLIMBING THROUGH 12,000 FEET WE HAD A 600 POUND IMBALANCE. R &R HPT CLEARANCE CONTROL VALVE IAW MM.