# Service difficulty reports: Leonardo AW109SP

A list on [Leonardo AW109SP](https://openairdocs.org/model/leonardo-aw109sp.md).

Newest first. General aviation reporting is voluntary.

- [SDR 2026FA0000821](https://openairdocs.org/sdr/2026FA0000821.md): Regulator Valve · faulted · Oct 6, 2026 · N57HR · Agusta AW109SP · Turbine Engine Oil System
  > HELICOPTER N57HR EXPERIENCED NR 1 OIL HOT LIGHT IN FLIGHT. PER RFM IT SAYS TO ACHIEVE SAFE OEI FLIGHT AND SHUT DOWN ENGINE USING EMERGENCY SHUTDOWN IN AN EMERGENCY. 3-73 AND 3-20 IN RFM. WHICH IS WHAT THE CREW DID.
- [SDR 2026FA0000528](https://openairdocs.org/sdr/2026FA0000528.md): Pressure Switch · intermittent · Jun 18, 2026 · N901XM · Agusta AW109SP · Landing Gear Retraction/Extension System
  > THE MLG LEVER WAS IN UP POSITION, BUT THREE GREEN LIGHTS FOR THE GEAR (THE GEAR WAS DOWN) WITH ONE RED LIGHT SHOWING GEAR TRANSITION. MY AIRSPEED HAD EXCEEDED THE 140KT LIMIT FOR THE GEAR TO BE DOWN WHICH CAUSED THE AIRSPEED AUDIO. I ALSO NOTICED AN AMBER MAST
- [SDR 2026FA0000348](https://openairdocs.org/sdr/2026FA0000348.md): Pressure Sensor · malfunctioned · Apr 2, 2026 · N281HC · Agusta AW109SP · Engine Oil Pressure
  > PILOT REPORTED HIGH OIL PRESSURE, SECURED THE ENGINE IN FLIGHT AND PREFORMED A PRECAUTIONARY LANDING.
- [SDR 2025FA0000770](https://openairdocs.org/sdr/2025FA0000770.md): Life Vest · misconfigured · Nov 19, 2025 · N901WM · Agusta AW109SP · Life Jacket
  > DURING A 6-MONTH GVI OF LIFE VESTS INSTALLED IN OUR AIRCRAFT, AN AMT DECIDED TO LOOK A LITTLE FURTHER THAN THE REQUIRED INSPECTION. FOUND A CO2 CARTRIDGE NOT SECURED AT ALL. THIS LED TO AN EXTENSIVE OF ALL SWITLIK IFE VESTS IN OUR FLEET AND STOCK INVENTORY. TH
- [SDR 2024FA0000833](https://openairdocs.org/sdr/2024FA0000833.md): Elec Connector · burned · Nov 9, 2024 · N901LF · Agusta AW109SP · Electrical Power System Wiring
  > BURNING PLASTIC SMELL IN COCKPIT METHOD: NOTES: AFTER STARTUP, THE SMELL OF BURNING PLASTIC FILLED THE COCKPIT. REMOVED AND REPLACED THE MAIN BATTERY CONNECTOR AND LEADS IAW LEO MM 24-31-01. GROUND LUG ON CONNECTOR BURNED. SUSPECT INCORRECT ASSEMBLY FROM OEM.
- [SDR 2023FA0000763](https://openairdocs.org/sdr/2023FA0000763.md): Bypass Valve · faulted · Nov 16, 2023 · N631HC · Agusta AW109SP · Turbine Engine Oil System
  > IN FLIGHT ENGINE #2 TEMP CAUTION ILLUMINATED ALONG WITH RISING TEMPERATURE INDICATION TO 131 CELSIUS. THEN, #2 PRESSURE WARNING ILLUMINATED WITH ERRATICALLY CHANGING PRESSURE INDICATION. SHUTDOWN #2 ENGINE AND LANDED. MAX CONTINUOUS OIL TEMPERATURE IS 128.5 C.
- [SDR 2023FA0000426](https://openairdocs.org/sdr/2023FA0000426.md): Bolt · grooved · Aug 10, 2023 · N261HC · Agusta AW109SP · Main Rotor System
  > IT WAS REPORTED AS THE AIRCRAFT WAS COMING IN FOR A 200-HOUR INSPECTION. A SLIGHT BUMP COULD BE FELT IN FLIGHT; DURING THE INSPECTION, ALL PC LINK ROD ENDS, AND BOLTS WERE INSPECTED, AND THE BLUE UPPER BOLT WAS FOUND TO HAVE A STEP WORN INTO IT, THE BOLT WAS R
- [SDR 2023F00015](https://openairdocs.org/sdr/2023F00015.md): Coupler · debonded · Jan 4, 2023 · N431HC · Agusta AW109SP · Rotorcraft Flight Control
  > #2 DRIVE SHAFT COUPLER APPEARS TO HAVE BECOME DEBONDED, AND THE ANTI-SLIPPAGE PIN CANNOT ROTATE, INDICATING A POTENTIAL SLIPPAGE.
- [SDR 2022FA0000435](https://openairdocs.org/sdr/2022FA0000435.md): Antenna Lead · broken · Aug 3, 2022 · N901LF · Agusta AW109SP · Antenna/Radome Anti-Ice/De-Ice System
  > NUMBER 1 GPS FAILED. INSPECTION REVEALED THE INTERNAL CONDUCTOR OF THE COAX ANTENNA CABLE FAILED AT ANTENNA CONNECTION. THIS IS A RECURRING CONDITION THAT HAPPENS EVERY 75-150 FH. ANTENNAS (GPS 1 & 2) ARE LOCATED ON THE TOP OF THE VERTICAL STABILIZER. THIS ARE
- [SDR 2022F00248](https://openairdocs.org/sdr/2022F00248.md): Damper · cracked · May 31, 2022 · N901XM · Agusta AW109SP · Main Rotor Head
  > DURING PREFLIGHT AMT FOUND A CRACK AT THE INBOARD UPPER LUG OF ONE OF THE MAIN ROTOR DAMPERS. THIS WAS DETECTED VISUALLY WITH NO ENHANCEMENTS. DEFECTIVE DAMPER WAS REMOVED AND A SERVICEABLE DAMPER WAS INSTALLED.
- [SDR 8LFA2021081900237](https://openairdocs.org/sdr/8LFA2021081900237.md): Flow Divider · loose · Aug 17, 2021 · N901LF · Agusta AW109SP · Fuel Divider
  > WE HAD JUST COMPLETING OEI TRAINING WITH THE TRAINING MODE ON THE NUMBER ONE ENGINE. AFTER COMPLETING OUR OEI TRAINING, ROGER PLACED THE TRAINING MODE BACK TO CENTER POSITION AND ALL INDICATIONS ON THE NUMBER ONE ENGINE WERE NORMAL. I PLACE THE RPM SWITCH BAC
- [SDR 2021F00117](https://openairdocs.org/sdr/2021F00117.md): Gps · disengaged · May 17, 2021 · N361CR · Agusta AW109SP · Global Positioning System
  > ON 05/01/21 ON A EARLY MORNING NIGHT IFR RNAV 08 APPROACH TO ASTORIA AIRPORT (KAST). HELICOPTER HAD FAILURE INDICATIONS OF BOTH GPS SYSTEMS, AT SIMULTANEOUS MOMENT, CAUSING GPS 1 AND 2 FAILURE WARNINGS, COMBINED WITH TAWS FAILURE MESSAGE, DISCONNECT OF AFCS,
- [SDR 2019FA0000414](https://openairdocs.org/sdr/2019FA0000414.md): Trunnion · scored · Nov 20, 2019 · N291HC · Agusta AW109SP · Tail Rotor Head
  > PILOT REPORTED A MAIN ROTOR VIBRATION. UPON TRACK AND BALANCE OF THE MAIN ROTOR IT WAS DISCOVERED THAT THE VIBRATION WAS FROM THE TAIL ROTOR. THIS WAS NOT A COMMON OCCURRENCE AS THE TAIL ROTOR UNDERGOES A DETAILED INSPECTION EVERY 200-HOURS. IT IS VERY UNCOMMO
- [SDR CA190528004](https://openairdocs.org/sdr/CA190528004.md): Reduction Gb · cracked · May 10, 2019 · Agusta AW109SP · Turbine Engine Reduction Gear
  > (CAN) PRIOR TO AIRCRAFT DEPARTING THE CREW NOTICED AN EXCESSIVE AMOUNT OF OIL ON THE ENGINE DECK. MAINTENANCE ACCOMPLISHED MULTIPLE SEAL REPLACEMENTS AND THE SOURCE OF THE OIL LEAK COULD NOT BE IDENTIFIED. THE ENGINE WAS SUBSEQUENTLY REMOVED AND SENT TO P&W FO
- [SDR 2018FA0000434](https://openairdocs.org/sdr/2018FA0000434.md): Relay · failed · Oct 23, 2018 · N170HR · Agusta AW109SP · Central Warning
  > CUSTOMER REPORTED THAT THE CREW ALERTING SYSTEM (CAS) MESSAGE ECU1FAIL ILLUMINATES ON THE RELATED DISPLAY AND THAT THE ENGINE CONTROL (ECU) REVERTS THE ENGINE FROM ECU CONTROL TO THE MANUAL MODE OF CONTROL. AFTER EXTENSIVE TROUBLE SHOOTING AND RECOMMENDATIONS
- [SDR 2018FA0000371](https://openairdocs.org/sdr/2018FA0000371.md): Wire · damaged · Sep 12, 2018 · N22224 · Agusta AW109SP · Engine Fuel System Wiring
  > ENGINE POSITION NR 1, CUSTOMER REPORTED THAT THE CREW ALERTING SYSTEM (CAS) MESSAGE "ECU1 FAIL" ILLUMINATES ON THE RELATED DISPLAY AND THAT THE ENGINE CONTROL (ECU) REVERTS THE ENGINE FROM ECU CONTROL TO THE MANUAL MODE OF CONTROL. AFTER EXTENSIVE TROUBLE SHOO
- [SDR 2018FA0000433](https://openairdocs.org/sdr/2018FA0000433.md): Bushing · loose · Sep 10, 2018 · N45BZ · Agusta AW109SP · Tail Rotor Head
  > DURING A WALK AROUND INSPECTION THE TECHNICIAN NOTICED THAT THE ROCKER ARM ASSEMBLY ON THE TAIL ROTOR HUB ASSEMBLY WAS VERY LOOSE. FURTHER INVESTIGATION REVEALED THAT THE BEARING HAD BECOME LOOSE IN THE ROCKER ARM ASSEMBLY. IN THIS APPLICATION THE BEARING IS
- [SDR 2018FA0000380](https://openairdocs.org/sdr/2018FA0000380.md): Rocker · loose · Sep 10, 2018 · N22284 · Agusta AW109SP · Tail Rotor Control System
  > DURING A WALK AROUND INSPECTION THE TECHNICIAN NOTICED THAT THE ROCKER ARM ASSEMBLY ON THE TAIL ROTOR HUB ASSEMBLY WAS VERY LOOSE. FURTHER INVESTIGATION REVILED THAT THE BEARING HAD BECOME LOOSE IN THE ROCKER ARM ASSEMBLY. IN THIS APPLICATION THE BEARING IS RO
- [SDR I7LA2018081800125](https://openairdocs.org/sdr/I7LA2018081800125.md): Oil Cooler · worn · Apr 23, 2018 · N291HC · Agusta AW109SP · Engine Oil Cooler
  > PILOT NOTED A SLIGHT INCREASE, WITHING LIMITS IN THE NR 1 ENGINE OIL TEMP DURING FLIGHT. DURING FINAL APPROACH, THE OIL TEMP STARTING INCREASING, THE PILOT ABORTED THE APPROACH, SECURED THE NR 1 ENGINE IAW THE RFM AND SUCCESSFULLY COMPLETED A RUN ON LANDING
- [SDR BV0A2018031900036](https://openairdocs.org/sdr/BV0A2018031900036.md): Crossbeam · cracked · Mar 19, 2018 · N361CR · Agusta AW109SP · Fuselage Miscellaneous Structure
  > DURING AN INSPECTION PER SERVICE BULLETIN 109SP-118 A CRACK WAS OBSERVED IN P/N 109-0330-17.
- [SDR I7LA201705110103](https://openairdocs.org/sdr/I7LA201705110103.md): Attach Fitting · cracked · May 4, 2017 · N291HC · Agusta AW109SP · Rotorcraft Tail Boom
  > DURING A 1200 HOUR INSPECTION, A CRACK WAS FOUND IN THE LOWER LT TAIL BOOM ATTACH FITTING. AFTER REMOVING THE TAIL BOOM, FOUND A CRACK IN THE BULKHEAD & FRAME ASSEMBLY.
- [SDR I7LA2015F00098](https://openairdocs.org/sdr/I7LA2015F00098.md): Bracket · cracked · Aug 6, 2015 · N271HC · Agusta AW109SP · Fuselage Main, Attach Fittings
  > DURING A 1,600-HOUR INSPECTION A TWO INCH CRACK WAS FOUND IN THE LT LONGERON BRACKET. THE CRACKED LONGERON BRACKET IS LOCATED AT THE AFT LOWER LT FUSELAGE TO TAIL BOOM ATTACH POINT. THE SUBJECT PART IS 1 OF 4 POINTS THAT ATTACH THE TAIL BOOM TO THE FUSELAGE.
- [SDR CA141105001](https://openairdocs.org/sdr/CA141105001.md): Engine · making metal · Oct 28, 2014 · Agusta AW109SP · Engine (Turbine/Turboprop)
  > (CAN) DURING FLIGHT, THE CREW EXPERIENCED AN ENGINE NR 2 CHIP DETECTOR MESSAGE BEING DISPLAYED IN THE COCKPIT. THE PILOT THEN DECIDED TO DIVERT WHERE AN UNEVENTFUL LANDING WAS MADE. A VISUAL INSPECTION ON THE ENGINE NR 2 SHOWED A LARGE AMOUNT OF DEBRIS.
- [SDR 2014FA0000562](https://openairdocs.org/sdr/2014FA0000562.md): Blade · cracked · Sep 25, 2014 · N261HC · Agusta AW109SP · Tail Rotor Blades
  > DURING A DAILY INSPECTION, A ONE INCH CRACK ON ONE OF THE TWO TAIL ROTOR BLADES WAS DETECTED. INITAL INSPECTION WAS VISUAL A 10X GLASS WAS USED TO VARIFY. AIRCRAFT WAS REMOVED FROM SERVICE AND WILL RETURN TO SERVICE AFTER A SERVICEABLE TAIL ROTOR BLADE IS I
- [SDR CA140710007](https://openairdocs.org/sdr/CA140710007.md): Control Rod · worn · Jul 9, 2014 · Agusta AW109SP · Rotorcraft Servo System
  > (CAN) DURING INSPECTION, THE ECS RETURN LINE HAD COME LOSE IN FLIGHT, AND STARTED TO WEAR A HOLE IN TO ONE OF THE MAIN ROTOR SERVO CONTROL RODS. THE ECS LINE IS A 2" ORANGE SCAT HOSE CONNECTED TO THE ECS SYS WITH A STANDARD CLAMP. THE CLAMP WAS INSPECTED AND

## 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 = 'AW109SP'
ORDER BY difficulty_date DESC
```

This list as a web page: https://openairdocs.org/model/leonardo-aw109sp/reports

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