What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
Narrative: flight crew reported that just shortly after rotation, the number 2 engine began to surge. Even with a power reduction the surging continued and was reported as becoming uncontrollable. A precautionary engine shutdown was accomplished. An emergency was declared and after all applicable checklists were completed, the aircraft returned for landing at Benton Harbor, MI (beh) without further incident. The aircraft was ferried back to detroit where maintenance discovered a malfunctioning hmu pot. The entire hmu assembly was replaced, the engine was tested and found to be satisfactory. A conversation with mesaba's station manager the following morning indicated the flight operated with a flight crew of two, one cabin attendant and three passengers.
As the FAA filed it
NARRATIVE: FLIGHT CREW REPORTED THAT JUST SHORTLY AFTER ROTATION, THE NUMBER 2 ENGINE BEGAN TO SURGE. EVEN WITH A POWER REDUCTION THE SURGING CONTINUED AND WAS REPORTED AS BECOMING UNCONTROLLABLE. A PRECAUTIONARY ENGINE SHUTDOWN WAS ACCOMPLISHED. AN EMERGENCY WAS DECLARED AND AFTER ALL APPLICABLE CHECKLISTS WERE COMPLETED, THE AIRCRAFT RETURNED FOR LANDING AT BENTON HARBOR, MI (BEH) WITHOUT FURTHER INCIDENT. THE AIRCRAFT WAS FERRIED BACK TO DETROIT WHERE MAINTENANCE DISCOVERED A MALFUNCTIONING HMU POT. THE ENTIRE HMU ASSEMBLY WAS REPLACED, THE ENGINE WAS TESTED AND FOUND TO BE SATISFACTORY. A CONVERSATION WITH MESABA'S STATION MANAGER THE FOLLOWING MORNING INDICATED THE FLIGHT OPERATED WITH A FLIGHT CREW OF TWO, ONE CABIN ATTENDANT AND THREE PASSENGERS.