What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
Catastropic failure of the oil cooler impeller resulted in loss of oil pressure. Helicopter was landed immediately. Damage to helicopter included cooling shroud, oil cooler support, oil cooler, turbine engine and fuselage skin around oil cooler impeller. Catastropic failure of the oil cooler impeller resaulted in loss of oil pressure. Helicopter landed immediately.
As the FAA filed it
CATASTROPIC FAILURE OF THE OIL COOLER IMPELLER RESULTED IN LOSS OF OIL PRESSURE. HELICOPTER WAS LANDED IMMEDIATELY. DAMAGE TO HELICOPTER INCLUDED COOLING SHROUD, OIL COOLER SUPPORT, OIL COOLER, TURBINE ENGINE AND FUSELAGE SKIN AROUND OIL COOLER IMPELLER. CATASTROPIC FAILURE OF THE OIL COOLER IMPELLER RESAULTED IN LOSS OF OIL PRESSURE. HELICOPTER LANDED IMMEDIATELY.
Other reports on N277DT · 1
Matched to the same aircraft by N-number and date.