What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
At approximately 0115 a mechanic was working on a Piper archer. After adjusting the idle the mechanic started the aircraft to verify the idle setting but neglected to set the parking brake and did not feel the aircraft moving the mechanic noticed that the aircraft was past the taxi line in the parking area of the ramp and applied the brakes but could not prevent the Piper from colliding with a Piper seminole that was parked infront of the aircraft , there were not injuries but was substantial damage to both aircraft. The NTSB will not be investigating this incident
As the FAA filed it
AT APPROXIMATELY 0115 A MECHANIC WAS WORKING ON A PIPER ARCHER. AFTER ADJUSTING THE IDLE THE MECHANIC STARTED THE AIRCRAFT TO VERIFY THE IDLE SETTING BUT NEGLECTED TO SET THE PARKING BRAKE AND DID NOT FEEL THE AIRCRAFT MOVING THE MECHANIC NOTICED THAT THE AIRCRAFT WAS PAST THE TAXI LINE IN THE PARKING AREA OF THE RAMP AND APPLIED THE BRAKES BUT COULD NOT PREVENT THE PIPER FROM COLLIDING WITH A PIPER SEMINOLE THAT WAS PARKED INFRONT OF THE AIRCRAFT , THERE WERE NOT INJURIES BUT WAS SUBSTANTIAL DAMAGE TO BOTH AIRCRAFT. THE NTSB WILL NOT BE INVESTIGATING THIS INCIDENT