As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING FLIGHT LT ENG LOST MANIFOLD PRESS DROPPED TO 27 INCHES, PILOT DECLARED AN EMER & DIVERTED & LANDED AT WITHOUT FURTHER INCIDENT. TROUBLESHOOTING REVEALED FAULTY TURBOCHARGER ON LT ENG. R & R TURBOCHARGER & PERFORMED OPERATIONAL CHECK OF ENG. ALL PERFORMANCE CHECKS WERE NORMAL.