# Service difficulty reports: Agusta A109C A list on [Agusta A109C](https://openairdocs.org/model/agusta-a109c.md). Newest first. General aviation reporting is voluntary. - [SDR 2009F00026](https://openairdocs.org/sdr/2009F00026.md): Compressor Wheel · damaged · Apr 7, 2009 · N70NM · Agusta A109C · Turbine Engine Compressor Section > PILOT REPORTED NR 1 ENG LOW WARNING LIGHT AND NR 1 ENG LOW AURAL ACTIVATED WITH CORRESPONDING DECREASE IN ENG SOUND. NR 1 ENG N1 WAS AT 28 PERCENT AND TOT WAS RISING, REACHING APPROX 1000 DEGREES C. PROCEEDED TO PULL NR 1 ENG THROTTLE TO IDLE AND THEN TO OFF. - [SDR S6G2005F00000](https://openairdocs.org/sdr/S6G2005F00000.md): Pin · cracked · Jan 6, 2005 · N60NM · Agusta A109C · Tail Rotor Head > AFTER DISASSEMBLY OF T/R HUB ASSY, REQUIRED DUE TO SCHEDULED 600 HOUR INSPECTION AND RETENTION STRAP REPLACEMENT (CLOSE TO RETIREMENT LIFE), FOUND STRAP PIN (PN 109-8131-08-1, TSN 4070) AND RETENTION STRAP (PN 109-8131-07-1 TSN 1735). ALSO, REPLACED STRAP PI - [SDR AUS20021120](https://openairdocs.org/sdr/AUS20021120.md): Fitting · faulty · Sep 27, 2002 · Agusta A109C · Aircraft Fuel Distribution System > (AUS) FUEL SYSTEM UNIONS FAULTY AND LEAKING. AIRCRAFT IS REGISTERED IN USA. - [SDR AHE02062](https://openairdocs.org/sdr/AHE02062.md): Connector · disconnected · Sep 4, 2002 · N109TW · Agusta A109C · Engine RPM Indicating System > NR 1 ENGINE LOW WARNING ILLUMINATED IN FLIGHT. NG DROPPED AND FLICKERED BEFORE BECOMING ZERO. ENGINE RETARDED TO GROUND IDLE, ALL OTHER INDICATIONS NORMAL. AIRCRAFT LANDED NORMALLY ON ONE ENGINE. NR 1 ENGINE NG TACHOMETER ELECTRICAL CONNECTOR FOUND DETACHE - [SDR AU990913](https://openairdocs.org/sdr/AU990913.md): Actuator · cracked · Aug 11, 1999 · Agusta A109C · Rotorcraft Servo System > (AUS) HYDRAULIC SERVO ACTUATOR LOCATED ON THE LEFT SIDE OF THE GEARBOX CRACKED ON THE UPPER BODY. LOSS OF NR 2 HYDRAULIC SYSTEM FLUID. - [SDR 98ZZZX3605](https://openairdocs.org/sdr/98ZZZX3605.md): Tube · leaking · Sep 14, 1998 · N109TW · Agusta A109C · Hydraulic System, Main > FOLLOWING LANDING, PILOT NOTED HYDRAULIC LEAK FROM NOSE BAY AREA. DEFECT REPORTED. EXAMINATION REVEALED LEAK TO ORIGINATE FROM TUBE ASSY. SUBMITTER STATED CAUSE WAS CHAFING OF PIPE BY NOSE WHEEL DOOR ACTUATING ROD. DIFFICULT TO LOCATE DUE TO PROXIMITY OF S - [SDR AU981088](https://openairdocs.org/sdr/AU981088.md): Blade · faulty · Aug 18, 1998 · Agusta A109C · Main Rotor Blades > (AUS) MAIN ROTOR BLADES FAULTY. BLADES FAILED TO MEET THE REQUIREMENTS OF ALERT B.T. NR 109-106. PART TC: 3,196. - [SDR AU981087](https://openairdocs.org/sdr/AU981087.md): Blade · faulty · Aug 18, 1998 · Agusta A109C · Main Rotor Blades > (AUS) MAIN ROTOR BLADES FAULTY. BLADES FAILED TO MEET THE REQUIREMENTS OF B.T. NR 109-106. PART TC: 2,760. - [SDR 98ZZZX1891](https://openairdocs.org/sdr/98ZZZX1891.md): Link · misrigged · Mar 24, 1998 · N911D · Agusta A109C · Tail Rotor Control System > PILOT REPORTED RT T/R CONTROL PEDAL HIT FULL STOP DURING RT DESCENDING TURN. HELICOPTER COULD NOT BE TRIMMED. DESCENT WAS SHALLOWED AND TRIM WAS ACHIEVED. MECH PERFORMED T/R RIGGING CHECK AND FOUND THE FOLLOWING: FULL LT PEDAL READING ON T/R BLADES = 24.5 - [SDR HAIHQEA0019](https://openairdocs.org/sdr/HAIHQEA0019.md): Rib · broken · Oct 31, 1997 · N100S · Agusta A109C · Horizontal Stabilizer, Spar/Rib > RIB IS BROKEN. THE LEAD TIP WT BOLTED TO THE OUTB RIB (APPROX. 4 LBS.), WAS FOUND RATTLING AROUND IN THE LT HORIZ STAB TIP CAP. FURTHER INVEST REVEALED THAT THE TIP WT, SECURED TO THE OUTB RIB WITH BOLTS AND ALUM RIVNUTS, PULLED THE RIVNUTS OUT OF THE RIB EL - [SDR 97ZZZX4829](https://openairdocs.org/sdr/97ZZZX4829.md): Rib · broken · Oct 21, 1997 · N100S · Agusta A109C · Horizontal Stabilizer, Spar/Rib > RIB IS BROKEN. THE LEAD TIP WEIGHT THAT IS BOLTED TO THE OUTBOARD RIB (APPROXIMATELY 4 POUNDS), WAS FOUND RATTLING AROUND IN THE LEFT HORIZONTAL STABILIZER TIP CAP. FURTHER INVESTIGATION REVEALED THE TIP WEIGHT, WHICH IS SECURED TO THE OUTBOARD RIB WITH BOLTS - [SDR HQEA0000014](https://openairdocs.org/sdr/HQEA0000014.md): Bearing · spalled · Jul 28, 1997 · N100S · Agusta A109C · Main Rotor Gearbox > FOLLOWING 2 TRANSMISSION CHIP LIGHT EVENTS IN LESS THAN 10 HOURS, METAL WAS FOUND ON THE LOWER TRANSMISSION CHIP PLUG BOTH TIMES. FOLLOWING THE SECOND CHIP LIGHT EVENT, THE TRANSMISSION WAS REMOVED AND SENT TO AGUSTA AEROSPACE CORP FOR INSPECTION. INSPECTION - [SDR 97ZZZX4400](https://openairdocs.org/sdr/97ZZZX4400.md): Bearing · spalled · Jul 28, 1997 · N100S · Agusta A109C · Main Rotor Gearbox > FOLLOWING 2 TRANSMISSION CHIP LIGHT EVENTS IN LESS THAN 10 HOURS, METAL WAS FOUND ON THE LOWER TRANSMISSION CHIP PLUG BOTH TIMES. FOLLOWING THE SECOND CHIP LIGHT EVENT, THE TRANSMISSION WAS REMOVED AND SENT TO AGUSTA AEROSPACE CORP FOR INSPECTION. INSPECTION - [SDR 97ZZZX4399](https://openairdocs.org/sdr/97ZZZX4399.md): Bearing · spalled · Jul 28, 1997 · N100S · Agusta A109C · Main Rotor Gearbox > FOLLOWING 2 TRANSMISSION CHIP LIGHT EVENTS IN LESS THAN 10 HOURS, METAL WAS FOUND ON THE LOWER TRANSMISSION CHIP PLUG BOTH TIMES. FOLLOWING THE SECOND CHIP LIGHT EVENT, THE TRANSMISSION WAS REMOVED AND SENT TO AGUSTA AEROSPACE CORP FOR INSPECTION. INSPECTION - [SDR 97ZZZX3840](https://openairdocs.org/sdr/97ZZZX3840.md): Input Quill · spalled · Jul 14, 1997 · N911D · Agusta A109C · Main Rotor Gearbox > APPROXIMATELY 5 MINUTES AFTER TAKEOFF, MAIN TRANSMISSION CHIP LIGHT CAME ON AND WOULD NOT ZAP OFF. PILOT RETURNED TO MAINT BASE. TECHNICIAN REMOVED AND INSPECTED BOTH CHIP PLUGS. TOP CHIP PLUG WAS CLEAN. BOTTOM CHIP PLUG HAD 4 LARGE CHIPS ON IT. TRANSMISS - [SDR 97ZZZX3448](https://openairdocs.org/sdr/97ZZZX3448.md): Input Quill · spalled · Jul 14, 1997 · N911D · Agusta A109C · Main Rotor Gearbox > APPROXIMATELY 5 MINUTES AFTER TAKEOFF, MAIN TRANSMISSION CHIP LIGHT CAME ON AND WOULD NOT ZAP OFF. PILOT RETURNED. TECHNICIAN REMOVED AND INSPECTED BOTH CHIP PLUGS. TOP CHIP PLUG WAS CLEAN. BOTTOM CHIP PLUG HAD 4 LARGE CHIPS ON IT. TRANSMISSION FILTER WAS - [SDR AU970126](https://openairdocs.org/sdr/AU970126.md): Pitch Link · faulty · Jan 27, 1997 · Agusta A109C · Tail Rotor Head > (AUS) TAIL ROTOR PITCH LINK BEARINGS NOT STAKED - BEARINGS MOVING IN LINKS AND ONE BEARING DISLODGED - PITCH LINKS HAD BEEN FITTED NEW A WEEK EARLIER - PERSONNEL/MAINTENANCE ERROR - [SDR HAIHQEA0014](https://openairdocs.org/sdr/HAIHQEA0014.md): Mount · broken · Oct 24, 1996 · N142HC · Agusta A109C · Exterior Lighting > LIGHT MOUNT IS BROKEN. FOUND THE SHOCK MOUNT TORN. INSTALLED SHOCK MOUNT. - [SDR 96ZZZX5542](https://openairdocs.org/sdr/96ZZZX5542.md): Door · broken · Oct 18, 1996 · N142HC · Agusta A109C · Landing Gear Doors > THE LEFT NOSE GEAR DOOR CAME IN CONTACT WITH THE NOSE WHEEL AND BROKE THE LEFT DOOR ACTUATING LEVER ROLLER BEARING AND THE LEFT DOOR. AGUSTA SB B.T. 109-84 REV A PERTAINS TO THIS SUBJECT, BUT DOES NOT APPLY TO THIS AIRCRAFT S/N. THIS AIRCRAFT WAS MODIFIED AT - [SDR 96ZZZX5548](https://openairdocs.org/sdr/96ZZZX5548.md): Module · fod damage · Oct 9, 1996 · N109TW · Agusta A109C · Turbine Engine Compressor Section > DURING A ROUTINE 100-HOUR INSPECTION, FOD DAMAGE FOUND TO RT ENGINE AXIAL COMPRESSOR ROTORS AND STATOR VANES. UNABLE TO ESTABLISH EXACT SOURCE OF FOD. OPERATOR TO REVIEW CURRENTLY USED LANDING SITES. - [SDR 96ZZZX5543](https://openairdocs.org/sdr/96ZZZX5543.md): Door · broken · Sep 19, 1996 · N652DH · Agusta A109C · Landing Gear Doors > FOUND THE LEFT NOSE GEAR DOOR BROKEN DURING THE 1200 HOUR INSPECTION. THE LEFT NOSE GEAR DOOR CAME IN CONTACT WITH THE NOSE WHEEL AND BROKE THE LEFT DOOR. AGUSTA SB B.T. 109-84 REV A PERTAINS TO THIS SUBJECT, BUT WAS PREVIOUSLY PERFORMED ON THIS ARICRAFT. T - [SDR HQEA963](https://openairdocs.org/sdr/HQEA963.md): Support Brackets · cracked · Sep 12, 1996 · N652DH · Agusta A109C · Horizontal Stabilizer, Attach Fittings > BRACKET IS CRACKED. THE -103 IS.050" STAINLESS STEEL. THIS REPLACED THE EARLIER ALUMINUM BRACKET. THE REPLACEMENT PART -111 IS.062" STAINLESS STEEL. THE CRACKED PART HAD TOOLING MARKS AT THE CORNERS WHERE THE CRACKS PROPAGATED. INSTALLED NEW -111 BRACKET - [SDR HQEA962](https://openairdocs.org/sdr/HQEA962.md): Tank Assy · broken · Sep 11, 1996 · N100S · Agusta A109C · Fuel Storage > TANK ASSY IS BROKEN. FOUND UPPER NIPPLE WHERE AUX FUEL TRANSFER TUBE ATTACHES TORN OFF. THE AUX FUEL WAS NOT TRANSFERING INTO THE FORWARD PART OF THE TANK. WHEN REMOVING THE TANK FOR REPAIR, A 7/8" WRENCH WAS FOUND UNDER THE TANK. THIS TANK WAS ORIGINAL EQ - [SDR HQEA000002](https://openairdocs.org/sdr/HQEA000002.md): Tank Assy · defective · Sep 11, 1996 · N100S · Agusta A109C · Fuel Storage > PART IS BROKEN. FOUND UPPER NIPPLE WHERE AUXILIARY FUEL TRANSFER TUBE ATTACHES TORN OFF. THE AUXILIARY FUEL WAS NOT TRANSFERRING INTO THE FORWARD PART OF THE TANK. WHEN REMOVING THE TANK FOR REPAIR, A.8750 INCH WRENCH WAS FOUND UNDER THE TANK. THIS TANK W - [SDR 96ZZZX5541](https://openairdocs.org/sdr/96ZZZX5541.md): Door · broken · May 31, 1996 · N100S · Agusta A109C · Landing Gear Doors > THE LEFT NOSE GEAR DOOR CAME IN CONTACT WITH THE NOSE WHEEL AND BROKE THE LEFT DOOR. AGUSTA SB B.T. 109-84 REV A PERTAINS TO THIS SUBJECT, BUT WAS PREVIOUSLY PERFORMED ON THIS AIRCRAFT. THIS REPAIR STATION HAS FOUND 2 OTHER AIRCRAFT (A109C) WITH B.T. 1090-84 - [SDR 96ZZZX2943](https://openairdocs.org/sdr/96ZZZX2943.md): Engine · making metal · May 7, 1996 · N97CH · Agusta A109C · Engine (Turbine/Turboprop) > NR 2 ENGINE REMOVED DUE TO EXCESSIVE CHIP LIGHTS. THIS IS THE 3RD OCCURRENCE WITH THIS ENGINE. ENGINE TT, 336.5 HRS SINCE NEW. - [SDR 95ZZZX7038](https://openairdocs.org/sdr/95ZZZX7038.md): Compressor · fod · Nov 13, 1995 · N94WH · Agusta A109C · Turbine Engine Compressor Section > AIRCRAFT ON PART 91 FLIGHT RETURNING TO BASE, PILOT OBSERVED A TORQUE SPLIT OF APPROXIMATELY 12-15 PERCENT. PILOT MATCHED TORQUE WITH TRIM SWITCH, NOTICED NR 2 ENGINE RUNNING HOTTER AND FASTER THAN NR 1. PILOT REDUCED POWER TO KEEP ENGINES IN NORMAL OPERATIN ## 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 = 'A109C' ORDER BY difficulty_date DESC ``` This list as a web page: https://openairdocs.org/model/agusta-a109c/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.