As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) CLIMB AFTER TAKE-OFF, CREW NOTED THAT THE NR 1 ENGINE LOST TURBO BOOST ABD THE AIRCRAFT YAWED TO THE LT. PILOT RETURNED TO AIRPORT. FOUND MANIFOLD PRESSURE SENSE LINE FROM ENGINE INDUCTION TO DIFFERENTIAL PRESSURE CONTROLLER SHEARED OFF ANDTHE SENSE LINE SENSING AMBIANT AIR PRESSURE AND NOT BOOSTED PRESSURE. LINE DAMA GED DUE TO HEAT STRESS NEAR EXHAUST SYSTEM. LINE REPLACED. NO FURTHER FAULTS.