N854UH
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, 2011-07-09 – 2015-02-13.
Part: GEARBOX — MAKING METAL (TAIL ROTOR) · airframe 3,188 hrs
DURING GROUND RUNS AFTER MAJOR INSPECTION, TAIL ROTOR INTERMEDIATE GEARBOX MADE EXCESSIVE METAL.
Part: ENGINE — MAKING METAL (NR 2 ENGINE) · airframe 1,992 hrs · 7,248 cycles
DURING A SCHEDULED ZONE INSPECTION, THE MECHANIC FOUND THE CHIP DETECTORS FOR THE NR 2 ENGINE WITH SMALL AMOUNTS OF METAL CHIPS ON ALL DETECTORS. HE THEN REMOVED THE OIL FILTER TO FIND METAL CHIPS AS WELL. AN OIL SAMPLE AND CHIPS WERE SENT TO LAB FOR TESTING. THE RESULTS WERE DETERMINED TO BE A BEARING IN THE M04 SECTION. THE M03, M04 & M05 ENGINE MODULES AS WELL AS THE OIL PUMP ARE ALL CURRENTLY BEING REPLACED AT THE TIME OF THIS SUBMISSION.
Part: FCU — UNSERVICEABLE (ENGINE) · airframe 1,231 hrs · 4,524 cycles
FUEL LEAKING FROM OVERBOARD DRAIN DETECTED AFTER ENGINE SHUTDOWN FROM GROUND RUN LEAK CHECK FOR PERFORMED MX NOT ASSOCIATED WITH THIS FAILURE. TROUBLESHOOTING IAW MM REVEALED THAT THE FCU HAD FAILED, LEAKING FUEL AT A RATE WELL ABOVE THAT ALLOTED BY MFG. CONFERENCE WITH THE TECH REP CONFIRMED OUR FINDINGS THAT THE FCU REQUIRED REMOVAL AND REPLACEMENT. THIS ACFT IS CURRENTLY OUT OF SERVICE AWAITING A REPLACEMENT FCU.
Part: THROTTLE — ROUGH (COLLECTIVE STICK) · airframe 1,168 hrs · 4,293 cycles
PILOT WAS PERFORMING PRE-START CHECKLIST FOR 2ND FLIGHT OF THE DAY. WHILE OPERATING NR 2 TWIST GRIP FROM "0" TO "F" NOTICED EXTREME FRICTION FROM BETWEEN "30" AND "F". MADE SEVERAL ATTEMPTS TO GO TO "F" BUT WAS CONCERNED THAT SOMETHING MAY BREAK. ACFT REMOVED FROM SERVICE. TROUBLESHOT. CONTINUED DISCONNECTING CABLE ENDS AND ISOLATING UNTIL N1 CONTROL BOX REMAINED. REMOVED N1 CONTROL BOX FROM ACFT AND CONFIRMED THAT THE NR 2 ENG SECTION IS BINDING APPROACHING "F" THROUGH "EMER" RANGE. ALL OTHER CABLES AND TWIST GRIPS OPERATE SMOOTHLY.
Part: UNKNOWN — LEAKING (FUEL SYSTEM) · airframe 575 hrs · 2,224 cycles
THE PILOT AND ALL CREW MEMBERS SMELLED FUEL THOUGHOUT THE CABIN JUST AFTER TAKEOFF. THE PILOT IMMEDIATELY RETURNED TO THE BASE AND CALLED THE MECHANIC. THE MECHANIC PERFORMED A THOROUGH INSPECTION OF THE HELICOPTER TO INCLUDE INSPECTING THE ENGINE COMPARTMENTS, BELLY OF ACFT, FUEL SUMPS, FUEL BOOSTED PUMPS, FUEL FILLER CAP FOR PROPER INSTALLATION, CABIN INTERIOR, OVERHEAD DRAINS, AND THE UNDERSIDE AIRFRAME DRAIN HOLES. THE MECHANIC THEN HAD THE PILOT PERFORM A GROUND RUN AND A FLIGHT TEST SIMULATING THE SAME CLIMBOUT CONDITIONS. NO DEFECTS WERE NOTED DURING ANY OF THESE CHECKS. THE ACFT WAS THEN RETURNED TO SERVICE.