What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
Narrative: the student pilot in the C-172 taxied behind an MU-2 performing a maintenance engine run up. The prop blast blew the C-172 off the taxiway, causing the prop and the left wing tip to hit the ground. The prop tips were bent and the left wing tip light had minor damage. The tower did not advise the C-172 of the MU-2 performing the run up, nor did they advise the MU-2 of the C-172 taxiing behind it. The student pilot stopped short of the MU-2, until he heard them shut down one of the engines, but as he taxied by, they ran up the other engine and the prop blast blew the aircraft off the taxiway. We have requested the Smyrna Airport authority to designate another area away from active aircraft traffic for future maintenance run ups. The tower was requested to issue advisory warning to aircraft taxiing near aircraft performing engine run-ups. The student pilot was debriefed on the hazards of taxiing near aircraft performing engine run ups.
As the FAA filed it
NARRATIVE: THE STUDENT PILOT IN THE C-172 TAXIED BEHIND AN MU-2 PERFORMING A MAINTENANCE ENGINE RUN UP. THE PROP BLAST BLEW THE C-172 OFF THE TAXIWAY, CAUSING THE PROP AND THE LEFT WING TIP TO HIT THE GROUND. THE PROP TIPS WERE BENT AND THE LEFT WING TIP LIGHT HAD MINOR DAMAGE. THE TOWER DID NOT ADVISE THE C-172 OF THE MU-2 PERFORMING THE RUN UP, NOR DID THEY ADVISE THE MU-2 OF THE C-172 TAXIING BEHIND IT. THE STUDENT PILOT STOPPED SHORT OF THE MU-2, UNTIL HE HEARD THEM SHUT DOWN ONE OF THE ENGINES, BUT AS HE TAXIED BY, THEY RAN UP THE OTHER ENGINE AND THE PROP BLAST BLEW THE AIRCRAFT OFF THE TAXIWAY. WE HAVE REQUESTED THE SMYRNA AIRPORT AUTHORITY TO DESIGNATE ANOTHER AREA AWAY FROM ACTIVE AIRCRAFT TRAFFIC FOR FUTURE MAINTENANCE RUN UPS. THE TOWER WAS REQUESTED TO ISSUE ADVISORY WARNING TO AIRCRAFT TAXIING NEAR AIRCRAFT PERFORMING ENGINE RUN-UPS. THE STUDENT PILOT WAS DEBRIEFED ON THE HAZARDS OF TAXIING NEAR AIRCRAFT PERFORMING ENGINE RUN UPS.