# Service difficulty reports: Bell 47G-5 A list on [Bell 47G-5](https://openairdocs.org/model/bell-47g-5.md). Newest first. General aviation reporting is voluntary. - [SDR 2013FA0000606](https://openairdocs.org/sdr/2013FA0000606.md): Grip · cracked · Sep 25, 2013 · N7938J · Bell 47G5 · Main Rotor Head > DURING LOW LEVEL CROP APPLICATION, PILOT HEARD A LOUD POP FOLLOWED BY VIBRATION, LANDED ACFT. NOTICED A CRACK IN THE UNDERSIDE OF THE GRIP DURING A VISUAL INSPECTION. CRACK WAS APPROX 70 PERCENT ACROSS THE LOWER EAR AT THE MAIN ROTOR BLADE BOLT HOLE. - [SDR 2007FA0000297](https://openairdocs.org/sdr/2007FA0000297.md): Blade · damaged · Mar 5, 2007 · N1202W · Bell 47G5 · Tail Rotor Blades > THE STAINLESS STEEL ABRASION STRIP ON THE LEADING EDGE OF THE COMPOSITE TAIL ROTOR BLADE SEPARATED FROM BLADE IN FLIGHT. PILOT NOTED A VIBRATION IN A SPRAY TURN AND ELECTED TO LAND; AND LANDED SAFELY (NO INJURIES). - [SDR 2005FA0001629](https://openairdocs.org/sdr/2005FA0001629.md): Grip · cracked · Dec 6, 2005 · N2251W · Bell 47G5 · Standard Practices/Structures > CRACK INDICATION REVEALED AT THE 8TH THREAD IB FROM END. INSPECTION METHOD: EDDY CURRENT. (K) - [SDR 2005FA0001628](https://openairdocs.org/sdr/2005FA0001628.md): Sleeve · cracked · Dec 6, 2005 · N2251W · Bell 47G5 · Rotorcraft Flight Control > CRACK INDICATION REVEALED AT WELD TO TUBE SLEEVE. INSPECTION METHOD: FLUORESCENT MAGNETIC PARTICLE. (K) - [SDR 2005FA0001627](https://openairdocs.org/sdr/2005FA0001627.md): Link · cracked · Dec 6, 2005 · N2251W · Bell 47G5 · Standard Practices/Structures > CRACK INDICATION REVEALED TRANSVERSE BETWEEN HOLES. INSPECTION METHOD: FLOURESCENT PENETRANT. (K) - [SDR 2002FA0000048](https://openairdocs.org/sdr/2002FA0000048.md): Universal Joint · failed · Aug 4, 2001 · N2251W · Bell 47G5 · Tail Rotor Head > WAS INVOLVED IN AERIAL APPLICATION, ON A SPRAY RUN PILOT NOTICED THAT HE WAS PICKING UP VIBRATION IN TAIL ROTOR CONTROL PEDALS AND CEASED SPRAY OPERATIONS. CAME IN FOR LANDING AND AT HOVER IS WHEN THE U-JOINT FAILED. HELICOPTER TURNED 180 DEGREES BEFORE LAND - [SDR 2000ZZZX47](https://openairdocs.org/sdr/2000ZZZX47.md): Harness · separating · Dec 9, 1999 · N7861S · Bell 47G5 · Emergency Equipment > EXPOSURE TO SUNLIGHT HAS RESULTED IN PREMATURE FAILURE OF STITCHING IN WEBBING ON SHOULDER HARNESS. - [SDR 98ZZZX2336](https://openairdocs.org/sdr/98ZZZX2336.md): Blade · defective · Jun 3, 1998 · N1201W · Bell 47G5 · Tail Rotor Blades > COLONY SERVICES, FAR PART 137 OPERATOR REPORTED AFTER INSTALLATION OF NEW TAIL ROTOR BLADES, SEVERE VIBRATION OCCURRED DURING FLIGHT. BLADE S/N A0011 HAD AN UNUSUAL SWELLING AT THE BLADE TIP, END OF THE EROSION GUARD. THREE-QUARTERS OF THE BLADE HAD BLADE SE - [SDR 98ZZZX2335](https://openairdocs.org/sdr/98ZZZX2335.md): Blade · defective · Jun 3, 1998 · N1201W · Bell 47G5 · Tail Rotor Blades > COLONY SERVICES, FAR PART 137 OPERATOR REPORTED AFTER INSTALLATION OF NEW TAIL ROTOR BLADES, SEVERE VIBRATION OCCURRED DURING FLIGHT. BLADE S/N A0011 HAD AN UNUSUAL SWELLING AT THE BLADE TIP, END OF THE EROSION GUARD. THREE-QUARTERS OF THE BLADE HAD BLADE SE - [SDR 97ZZZX408](https://openairdocs.org/sdr/97ZZZX408.md): Gear · failed · Dec 26, 1996 · N7925J · Bell 47G5 · Reciprocating Engine Rear Section > DURING SPRAY RUN WHEN CROSSING THE FENCE, THE ENGINE BACKFIRED AND QUIT. THE HELICOPTER TRAVELED APPROX 150 FEET IN THE AIR BEFORE THE SKIDS CONTACTED THE GROUND, SKIPPED 75 FEET AND STRUCK A SMALL HILL WHICH BROKE THE SKID AND THE TAIL BOOM AND TAIL ROTOR. - [SDR 96ZZZX4279](https://openairdocs.org/sdr/96ZZZX4279.md): Shaft Veny · plugged · Aug 10, 1996 · N7885S · Bell 47G5 · Tail Rotor Gearbox > RECEIVED NEW REPLACMENT PART FROM BELL. DURING RECEIVING INSPECTION, NOTICED.1250 INCH HOLE DRILLED IN SHAFT TO VENT GEARBOX WAS PLUGGED SOLID WITH GRAY COATING THAT WAS APPLIED TO INTERIOR OF SHAFT FOR CORROSION PROTECTION. SUBMITTER STATED THIS COULD POSS - [SDR 96ZZZX4109](https://openairdocs.org/sdr/96ZZZX4109.md): Gasket · misinstalled · Jul 25, 1996 · N7885S · Bell 47G5 · Engine Air Intake System > DURING INVESTIGATION FOR CAUSE OF POWER LOSS AND AUTOROTATION OF AIRCRAFT, DISCOVERED GASKET BETWEEN AIR FILTER HOUSING AND CARBURETOR INLET HAD ONE CORNER FOLDED OVER ALLOWING DIRT TO ENTER AND BLOCK CARBURETOR AIR PASSAGES. SUBMITTER SUSPECTS IMPROPER INSTA - [SDR 96ZZZX3838](https://openairdocs.org/sdr/96ZZZX3838.md): Elbow · wrong part · Jul 8, 1996 · Bell 47G5 · Tail Rotor Head > DURING CLEAN-UP AND INSPECTION OF TRANSMISSION PARTS AT OVERHAUL, DISCOVERED TRANSMISSION OIL SUPPLY FITTING PN MS20823-4 HAD RESTRICTOR ORIFICE SIMILAR TO PN 47-712-035-1 MANIFOLD PRESSURE GAUGE LINE RESTRICTOR. SUBMITTER STATED COULD CAUSE TRANSMISSION FAIL - [SDR 96ZZZX3995](https://openairdocs.org/sdr/96ZZZX3995.md): Lockwasher · failed · Jul 2, 1996 · N7938J · Bell 47G5 · Reciprocating Engine Power Section > DURING TROUBLESHOOTING, METAL IN OIL SCREEN PROBLEM, A TANG WAS FOUND IN SUMP SUCTION SCREEN, BUT WAS UNABLE TO POSITIVELY IDENTIFY THE SOURCE OF METAL. TENTATIVELY IDENTIFIED AND HELICOPTER RETURNED TO SERVICE. 6.5 HOURS LATER, THE ENGINE QUIT SUDDENLY ON T - [SDR 96ZZZX5038](https://openairdocs.org/sdr/96ZZZX5038.md): Drive Gear · bolts sheared · Jun 18, 1996 · N1449W · Bell 47G5 · Reciprocating Engine Rear Section > GEAR AND SHAFT ASSEMBLY IS A TWO-PART GEAR HELD TOGETHER BY SIX.25 INCH BOLTS AND THREE.25 INCH PILOT PINS. IT APPEARS THE SIX.25 INCH BOLTS WERE NOT PROPERLY TORQUED AT OVERHAUL AND THEY SHEARED OFF AT 529.6 HOURS SMOH. - [SDR 96ZZZX99](https://openairdocs.org/sdr/96ZZZX99.md): Control Cable · failed · Sep 15, 1995 · N2251W · Bell 47G5 · Turbine Governor > N2 GOVERNOR CONTROL CABLE END FAILED WHILE BEING INSTALLED ON HELICOPTER. THREADED END BROKE OFF DURING INITIAL ADJUSTMENT ON GROUND. THIS CABLE END IS A 1/4-28 THREADED FITTING THAT IS SWAGED ONTO A.1875 INCH CABLE SHANK. THE THREADS HAD BEEN CUT TOO FAR - [SDR 95ZZZX5534](https://openairdocs.org/sdr/95ZZZX5534.md): Spring · low tension · Aug 21, 1995 · N6288N · Bell 47G5 · Engine/Transmission Coupling > AIRCRAFT EXPERIENCED SLOW ROTOR ENGAGEMENT AT START-UP. TENSION DIMENSIONS AND FINISH OF FREEWHEEL SPRINGS VARY GREATLY. SUBMITTER SUGGESTS BELL NEEDS TO IMPROVE QUALITY OF SPRINGS. ## The whole list in SQL Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS: ```sql SELECT sdr_id, difficulty_date, n_number, aircraft_make, aircraft_model, part_name, part_condition, jasc_code, discrepancy FROM 'https://openairdocs.org/data/latest/faa_service_difficulty_report.parquet' WHERE aircraft_model_key = '47G5' ORDER BY difficulty_date DESC ``` This list as a web page: https://openairdocs.org/model/bell-47g-5/reports --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.