N156AM
Registered owner: MONTANA AIRCRAFT TRUST INC TRUSTEE, MT (owner ≠ operator)
Operators of this aircraft
Who operated this tail, and how firmly we know it.
No operator established for this aircraft.
Accident & incident history
No NTSB accidents or incidents on file for this aircraft.
Maintenance disclosures
Service Difficulty Reports filed with the FAA for this airframe. Filing is largely voluntary — the number of reports is not a measure of reliability. To verify a report, search its control number at the FAA SDRS site.
5 reports on file, 2010-01-20 – 2014-12-14.
Part: TRANSPONDER — MALFUNCTIONED (COCKPIT) · airframe 13,329 hrs · 53,734 cycles
THE PILOT DETECTED AN ELEC BURNING SMELL IN THE COCKPIT ON APPROACH. ONCE ON THE GND, HE CALLED IN THE MECHANIC TO INSPECT THE ACFT. FOUND THAT THE TRANSPONDER HAD BEEN THE SOURCE OF THIS SMELL & WAS INOPERATIVE. PLACED THE TRANSPONDER ON ORDER & DEFERRED THE SYS IAW THE AMC BK117 SERIES MINIMUM EQUIPMENT LIST. THIS DEFERRAL REMAINS IN USE AT THE TIME OF THIS SUBMISSION AWAITING A REPLACEMENT TRANSPONDER & THE SUBSEQUENT RE-CERTIFICATION.
Part: UNKNOWN — MALFUNCTIONED (HYDRAULIC SYS) · airframe 12,883 hrs · 12,701 cycles
WHILE IN CRUISE FLIGHT SHORTLY AFTER TAKEOFF FROM THE SENDING HOSPITAL WITH A PATIENT ONBOARD, THE PILOT EXPERIENCED A HYD 2 CAUTION LIGHT & A REDUCTION IN INDICATED FLIGHT HYD PRESS TO APPROXIMATELY 60 PSI. EXECUTED THE EMERGENCY PROCEDURE BY THE CHECKLIST & RETURNED TO THE SENDING HOSPITAL WITHOUT FURTHER ISSUES. INSPECTED THE HELICOPTER & PERFORMED SEVERAL GND RUNS WITH THE PILOT, THE FAULT COULD NOT BE DUPLICATED & THE ACFT WAS RETURNED TO SERVICE & FLOWN BACK TO THE BASE.
Part: FILLERCAP — MISSING (FUEL CELL) · airframe 11,104 hrs · 45,098 cycles
WHILE IN FORWARD FLIGHT, CREW DETECTED STRONG ODOR OF FUEL. AFTER AN UNSCHEDULED LANDING AND VISUAL INSPECTION OF ACFT FOUND THAT THE FUEL FILLER CAP WAS MISSING NEW FUEL CAP INSTALLED ACFT RETURN TO SERVICE.
Part: MAST — CORRODED (MAIN ROTOR)
AFTER MAIN ROTOR HEAD WAS REMOVED FOR OTHER MX, THE MAST WAS FOUND TO HAVE CORROSION ON THE MATING SURFACE AND AROUND MOUNTING BORES.
Part: FLOOR SKIN — CRACKED (ZONE 400) · airframe 10,996 hrs · 44,693 cycles
AFTER REMOVAL OF NR 1 ENGINE, FOUND THE FIRE EXTINGUISHER TUBE HAD CHAFED THROUGH THE ENGINE DECK SKIN 130MM LONG 5MM WIDE AND A 34MM CRACK IN THE MIDDLE.