What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
On 08/18/17 @ 0545 mt, an air methods (qmla) helicopter, N392LG, was on approach into a Back Country landing zone on the conundrum creek trail in Aspen Colorado. It was night VMC and the pilot was operating on night vision goggles. The landing was very close to a small tree. A post flight inspection by the pilot did not reveal any damage. After departing and passing through 60 KIAS the pilot noticed an unusual vertical vibration in the rotor. The aircraft was flyable with no unusual noises, and the pilot did not feel it safe to spend the time to do another Back Country landing reconnaissance. The pilot continued and landed at kase. A more detailed inspection of the rotor blade, during daylight, revealed damage. The damage was most likely caused by a small tree at the Back Country landing zone.
As the FAA filed it
ON 08/18/17 @ 0545 MT, AN AIR METHODS (QMLA) HELICOPTER, N392LG, WAS ON APPROACH INTO A BACK COUNTRY LANDING ZONE ON THE CONUNDRUM CREEK TRAIL IN ASPEN COLORADO. IT WAS NIGHT VMC AND THE PILOT WAS OPERATING ON NIGHT VISION GOGGLES. THE LANDING WAS VERY CLOSE TO A SMALL TREE. A POST FLIGHT INSPECTION BY THE PILOT DID NOT REVEAL ANY DAMAGE. AFTER DEPARTING AND PASSING THROUGH 60 KIAS THE PILOT NOTICED AN UNUSUAL VERTICAL VIBRATION IN THE ROTOR. THE AIRCRAFT WAS FLYABLE WITH NO UNUSUAL NOISES, AND THE PILOT DID NOT FEEL IT SAFE TO SPEND THE TIME TO DO ANOTHER BACK COUNTRY LANDING RECONNAISSANCE. THE PILOT CONTINUED AND LANDED AT KASE. A MORE DETAILED INSPECTION OF THE ROTOR BLADE, DURING DAYLIGHT, REVEALED DAMAGE. THE DAMAGE WAS MOST LIKELY CAUSED BY A SMALL TREE AT THE BACK COUNTRY LANDING ZONE.