# Service difficulty reports: Lycoming LTIO-540-J2B

A list on [Lycoming LTIO-540-J2B](https://openairdocs.org/engine/lycoming-ltio-540-j2b.md).

Newest first. General aviation reporting is voluntary.

- [SDR WVBA2024101501](https://openairdocs.org/sdr/WVBA2024101501.md): Buss Bar · loose · Oct 8, 2024 · N42WP · Piper PA31350 · Electrical Power System Wiring
  > LEFT AND RIGHT VOLTAGE REGULATOR AND GROUND VENT FAN CIRCUIT BREAKERS ALL TRIPPED SIMULTANEOUSLY DURING FLIGHT AND WOULD NOT RESET. AIRCRAFT RETURNED TO FAI WITHOUT INCIDENT. MAINTENANCE FOUND SMALL BUSS BAR IN THE CIRCUIT BREAKER PANEL HAD A LOOSE CONNECTIO
- [SDR 2024FA0000939](https://openairdocs.org/sdr/2024FA0000939.md): Wastegate Valve · perforated · Jul 25, 2024 · N555GT · Piper PA31350 · Reciprocating Engine Supercharger
  > DENSITY CONTROLLER FAILED. RESULTED IN ROLLBACK OF ENGINE POWER TO ~30" MANIFOLD PRESSURE. LOSS OF TURBO BOOST. SUSPECTED PART WAS RETURNED TO LYCOMING FOR TESTING AND FOUND TO BE DEFECTIVE.
- [SDR 2023FA0000437](https://openairdocs.org/sdr/2023FA0000437.md): Link · unserviceable · Aug 16, 2023 · N3589B · Piper PA31350 · Landing Gear System
  > UPON LANDING, NOSE GEAR COLLAPSED ------ PILOT REPORTS ON APPROACH HE HAD THREE GREEN LIGHTS INDICATING GEAR WAS DOWN AND LOCKED AND NO EVIDENCE OF ANY ISSUES. ONCE THE NOSE GEAR CAME IN CONTACT WITH THE RUNWAY THE PILOT HEARD A LOUD NOISE FROM THE NOSE GEAR
- [SDR 1SMA2022121400517](https://openairdocs.org/sdr/1SMA2022121400517.md): Hose · leaking · Dec 14, 2022 · N35475 · Piper PA31350 · Engine Oil System (Airframe Furnished)
  > DURING CRUISE, PILOT NOTICED RT ENGINE OIL PRESSURE INDICATED ZERO PSI. NEAREST AIRPORT WAS AT DESTINATION, APPROX 30 MILES AWAY. PILOT DID NOT SEE ANY ABNORMAL OIL TEMPS, CYLINDER HEAD TEMPS, EGT, MANIFOLD PRESSURE, FUEL FLOW & FUEL PRESSURE NOMINAL. APPRO
- [SDR 1SMA20221214001](https://openairdocs.org/sdr/1SMA20221214001.md): Hose · leaking · Dec 14, 2022 · N35475 · Piper PA31350 · Hoses and Tubes
  > DURING CRUISE FLIGHT, THE PILOT NOTICED THE RIGHT ENGINE OIL PRESSURE SUDDENLY INDICATED 0 PSI. THE NEAREST AIRPORT WAS THE DESTINATION AIRPORT APPROXIMATELY 30 MILES AWAY. THE PILOT DID NOT OBSERVE ANY ABNORMAL OIL TEMPERATURE, CYLINDER HEAD TEMPERATURE, EGT,
- [SDR 2022F00233](https://openairdocs.org/sdr/2022F00233.md): None · dirty · Apr 19, 2022 · N766CF · Piper PA31350 · Landing Gear Retraction/Extension System
  > PILOT REPORTED DURING LANDING THAT THE LEFT LANDING GEAR DOWN & LOCK LIGHT DID NOT ILLUMINATE AT DEPLOYMENT. AN "EMERGENCY LANDING GEAR EXTENSION" WAS PERFORMED BY THE PILOT WITH UP TO 60 HAND STROKES AS PER THE POH, BUT THE DOWN & LOCK LIGHT DID NOT ILLUMINAT
- [SDR 2021F00333](https://openairdocs.org/sdr/2021F00333.md): Turbocharger · broken · Nov 24, 2021 · N42WP · Piper PA31350 · Exhaust Turbocharger
  > PILOT WAS IN CRUISE FLIGHT AND EXPERIENCED A PARTIAL POWER LOSS AND THEN OIL PRESSURE LOSS OF THE RIGHT ENGINE. PILOT SHUT DOWN ENGINE AND LANDED WITHOUT FURTHER INCIDENT. UPON INSPECTION OF ENGINE IT WAS FOUND THAT THE SHAFT WAS BROKEN AND BOTHER TURBINE AN
- [SDR 3JPA2020120940001](https://openairdocs.org/sdr/3JPA2020120940001.md): Pushrod · bent · Dec 4, 2020 · N34WM · Piper PA31350 · Engine (Reciprocating)
  > ON THE EVENING OF 12-4-2020 OUR PIPER NAVAJO (PA-31-350) N34WM WAS RETURNING FROM PAQT TO PASC. PILOT REPORTED THAT ON APPROACH HE NOTICED WHAT SEEMED LIKE A SLIGHT POWER LOSS IN THE RT (NR 2) ENGINE. A FEW MILES FROM THE AIRPORT THE NR 2 ENGINE BEGAN TO RUN
- [SDR EPUA2019040331001](https://openairdocs.org/sdr/EPUA2019040331001.md): Tube · loose · Mar 31, 2019 · N3536B · Piper PA31350 · Engine (Reciprocating)
  > PILOT REPORTED " RIGHT ENGINE FAILURE ON TAKEOFF". MAINTENANCE INSPECTED THE RIGHT ENGINE AND DETERMINED THAT THE HARDWARE FOR #2 ENGINE, #2 CYLINDER INTAKE TUBE WAS LOOSE. REMOVED ASSOCIATED GASKET AND O-RING FOR INTAKE TUBE AND SECURED INTAKE TUBE AS REQUIR
- [SDR WVBA201812287001](https://openairdocs.org/sdr/WVBA201812287001.md): Transmitter · failed · Dec 16, 2018 · N59826 · Piper PA31350 · Fuel Quantity Sensor
  > PILOT REPORTED, "RT OUTBOARD FUEL GAUGE READS FULL CLOCKWISE - ALL THE TIME." FUEL QUANTITY SYSTEM WAS DEFERRED PER MEL 28-4 "FUEL QUANTITY INDICATORS" ON DMR #5111 CATEGORY "C" WITH A DURATION OF 10 DAYS. THE AIRCRAFT WAS BROUGHT IN FOR MAINTENANCE ON 27
- [SDR JIKA2018020201](https://openairdocs.org/sdr/JIKA2018020201.md): Engine · failed · Feb 2, 2018 · N35805 · Piper PA31350 · Engine (Reciprocating)
  > THE PILOT REPORTED ON CLIMB OUT FROM KABQ THAT THE AIRCRAFT’S RIGHT ENGINE MANIFOLD PRESSURE WAS DECREASING AS THE THROTTLE WAS INCREASED. THEN THE RIGHT OIL PRESSURE DROPPED FROM NORMAL 75PSI DOWN TO 20PSI (REDLINE). THE PILOT FOLLOWED PROCEDURES AND PERFORME
- [SDR EPUA20171117001](https://openairdocs.org/sdr/EPUA20171117001.md): Engine · surges · Nov 17, 2017 · N35497 · Piper PA31350 · Engine (Turbine/Turboprop)
  > SHORTLY AFTER TAKE OFF OUT OF UNK THE RIGHT ENGINE ON THE AIRCRAFT STARTED TO SURGE SEVERELY AND THE PIC DECLARED AN EMERGENCY AND RETURNED TO UNK. PIC REDUCED POWER TO ENGINE IN ORDER TO CONTROL THE SURGING BUT DID NOT SHUT THE ENGINE OFF WHILE IN THE AIR. MA
- [SDR 2017FA0000290](https://openairdocs.org/sdr/2017FA0000290.md): Line · failed · Jul 18, 2017 · N4107Q · Piper PA31350 · Turbine Engine Oil System
  > OIL COOLER OIL LINE FAILED CAUSING OIL PRESSURE TO DROP. PILOT SHUT THE ENGINE DOWN AND RETURNED TO BASE.
- [SDR YAXA2017071101](https://openairdocs.org/sdr/YAXA2017071101.md): Pump · leaking · Jul 10, 2017 · N765KP · Piper PA31350 · Engine Fuel Pump
  > ENGINE WOULD NOT SHUT DOWN WITH MIXTURE CONTROL AT IDLE CUTOFF. FOUND ENGINE DRIVEN FUEL PUMP LEAKING FROM RELIEF VALVE INTO DECK PRESSURE REFERENCE LINE INTO INTAKE. ENGINE DRIVEN FUEL PUMP REPLACED WITH NEW.
- [SDR YAXA2016032502](https://openairdocs.org/sdr/YAXA2016032502.md): Fitting · misaligned · Mar 24, 2016 · N765KP · Piper PA31350 · Engine Fuel Pump
  > THIS ENG WAS RECEIVED IN OVERHAULED CONDITION IN PREPARATION FOR INSTALLATION ON THE ACFT. DURING INSPECTION OF THIS ENG PRIOR TO INSTALLATION ON ACFT, IT WAS FOUND THAT THE FUEL PUMP INLET FITTING AS ALIGNED FROM THE MANUFACTURER WILL NOT ALLOW THE 3/16" CLE
- [SDR YAXA2016021601](https://openairdocs.org/sdr/YAXA2016021601.md): Cylinder · cracked · Feb 15, 2016 · N765KP · Piper PA31350 · Reciprocating Engine Cylinder Section
  > DURING A ROUTINE 100 HOUR INSPECTION, BLUE FUEL STAINING WAS FOUND ON THE TOP INTAKE SIDE OF THE NR 5 CYLINDER. CLOSER EXAMINATION REVEALED THAT THE CYLINDER WAS CRACKED, BETWEEN THE 14TH & 15TH COOLING FINS ON THE INTAKE SIDE OF THE CYLINDER HEAD INTO THE INT
- [SDR YAXA2015120801](https://openairdocs.org/sdr/YAXA2015120801.md): Distributor Blk · loose · Nov 30, 2015 · N765KP · Piper PA31350 · Magneto/Distributor
  > THE RT MAGNETO WAS REMOVED TO ACCESS A HYD PUMP. WHILE THE MAGNETO WAS REMOVED, THE DISTRIBUTOR WAS INSPECTED FOR LOOSENESS OF THE BUSHING DUE TO PREVIOUS FAILURES ON THIS TYPE OF MAGNETO. THE DISTRIBUTOR WAS FOUND TO HAVE A LOOSE BUSHING & THE MAGNETO WAS R
- [SDR YAXA2015120803](https://openairdocs.org/sdr/YAXA2015120803.md): Cylinder Head · cracked · Nov 11, 2015 · N765KP · Piper PA31350 · Reciprocating Engine Cylinder Section
  > DURING A ROUTINE 100 HOUR INSPECTION, THE NR 2 CYLINDER ON THE RT ENG WAS FOUND TO BE CRACKED IN THE INTAKE PORT, BETWEEN THE 14TH & 15TH COOLING FINS. THE TELLTALE SIGN IS BLUE STAIN EMANATING FROM THIS AREA. THIS IS THE 5TH CYLINDER WE HAVE FOUND CRACKED I
- [SDR YAXA2015110201](https://openairdocs.org/sdr/YAXA2015110201.md): Distributor Blk · loose · Nov 2, 2015 · N765KP · Piper PA31350 · Magneto/Distributor
  > DURING CLIMB, THE RT ENG BEGAN TO RUN ROUGH & EXPERIENCED HIGH OIL & CYLINDER HEAD TEMPS. RETURNED TO THE DEPARTURE AIRPORT. PRELIMINARY INSPECTION SHOWED ALL RT ENG SPARK PLUGS WERE NORMAL & THUMB COMPRESSION EXISTED ON ALL 6 CYLINDERS. TRACED PROBLEM TO L
- [SDR YAXA2015110202](https://openairdocs.org/sdr/YAXA2015110202.md): Pump · leaking · Nov 2, 2015 · N765KP · Piper PA31350 · Engine Fuel Pump
  > WHILE REPLACING A FAULTY MAGNETO, THE ENG DRIVEN FUEL PUMP WAS OBSERVED TO BE LEAKING FUEL FROM THE SEAL CAVITY, WHEN TURNING THE FUEL BOOST PUMP ON OR OFF, BUT NOT DURING RUNNING. THIS IS THE 3RD OCCURRENCE WE HAVE HAD OF SIMILAR LEAKAGE IN 3300 ENG HOURS.
- [SDR JIKA201602230001](https://openairdocs.org/sdr/JIKA201602230001.md): Pump · malfunctioned · Oct 16, 2015 · N3BT · Piper PA31350 · Engine Fuel Pump
  > THE ENG OVERHAUL SHOP PERFORMED A COMPLETE TEAR DOWN & EVALUATION OF THE ENG DUE TO METAL IN THE OIL FILTER. TEAR DOWN REPORT SHOWED NO VISIBLE CAUSE FOR THE METAL IN THE FILTER. ALL INTERNAL COMPONENTS WERE SATISFACTORY. REASSEMBLED ENG. DURING TEST CELL
- [SDR YAXA2015091405](https://openairdocs.org/sdr/YAXA2015091405.md): Cylinder · cracked · Sep 7, 2015 · N765KP · Piper PA31350 · Reciprocating Engine Cylinder Section
  > AFTER FINDING NR 6 & NR 4 CYLINDERS CRACKED, REFERENCE SDR YAX15091403 & YAX15091404, WE INSPECTED ALL OTHER CYLINDERS & FOUND NR 1 CRACKED AS WELL. THE TELLTALE SIGN WAS BLUE FUEL STAINING BETWEEN THE 14TH & 15TH COOLING FINS ON THE TOP OF THE INTAKE PORT SI
- [SDR YAXA2015091403](https://openairdocs.org/sdr/YAXA2015091403.md): Cylinder · cracked · Sep 6, 2015 · N765KP · Piper PA31350 · Reciprocating Engine Cylinder Section
  > DURING CLIMB, THE PILOT REPORTED CHT ON THE NR 2 ENG WAS 450° & CLIMBING. HE EXECUTED A PRECAUTIONARY LANDING AT THE DEPARTURE AIRPORT. THE NR 6 CYLINDER, WHERE THE CHT PROBE IS LOCATED, WAS FOUND TO HAVE A CRACK FROM THE UPPER SPARK PLUG HOLE TO THE INTAKE
- [SDR YAXA2015091404](https://openairdocs.org/sdr/YAXA2015091404.md): Cylinder · cracked · Sep 6, 2015 · N765KP · Piper PA31350 · Reciprocating Engine Cylinder Section
  > AFTER FINDING NR 6 CYLINDER CRACKED, REFERENCE SDR YAX15091403, WE INSPECTED ALL OTHER CYLINDERS & FOUND NR 4 CRACKED AS WELL. THE TELLTALE SIGN WAS BLUE FUEL STAINING BETWEEN THE 14TH & 15TH COOLING FINS ON THE TOP OF THE INTAKE PORT SIDE OF THE CYLINDER. T
- [SDR 2015F00073](https://openairdocs.org/sdr/2015F00073.md): Magneto · defective · May 21, 2015 · Magneto/Distributor
  > FACTORY REBUILT MAGNETOS NEW OUT OF THE BOX ARE ARRIVING WITH NO GREASE ON THE DISTRIBUTOR GEARS AND THEY ALSO LACK OIL ON THE DISTRIBUTOR GEAR FELTS. THERE IS SOME OIL ON THE FELTS BUT NOT ENOUGH. WE HAVE FOUND COIL WEDGES LOOSE OR COIL WEDGES SEVERLY BENT
- [SDR CA140903014](https://openairdocs.org/sdr/CA140903014.md): Fitting · cracked · Sep 3, 2014 · Piper PA31350 · Fuselage, Landing Gear Attach Fittings
  > (CAN) DURING GEAR INSPECTION FITTING FOUND WITH WORN BUSHING. FITTING REPLACED WITH SERVICEABLE PART UPON POINT STRIPPING FOR BUSHING REPLACEMENT FITTING FOUND WITH CRACK AT R/H LOWER ATTACH WEB TO ATTACH POINT. CRACK AROUND LOWER WEB FOR ABOUT.250".
- [SDR YAXA2015091401](https://openairdocs.org/sdr/YAXA2015091401.md): Pump · leaking · Sep 3, 2014 · N765KP · Piper PA31350 · Engine Fuel Pump
  > WHILE ACFT WAS PARKED IN HANGAR, THE ACFT WAS OBSERVED TO HAVE FUEL DRIPPING FROM THE ENG ACCESSORY DRIVE DRAIN LINE. THE ENG DRIVEN FUEL PUMP WAS FOUND TO HAVE A SLOW LEAK FROM THE DRIVE SHAFT SEAL WHILE DEPRESSURIZED, WHICH CEASED WHEN PRESS WAS APPLIED TO
- [SDR 2014FA0000604](https://openairdocs.org/sdr/2014FA0000604.md): Cylinder · separated · Aug 6, 2014 · N42MH · Piper PA31350 · Reciprocating Engine Cylinder Section
  > DURING CRUISE AT 6000 FT, RT ENGINE SOUND CHANGED, LOST A SMALL AMOUNT OF POWER, PILOT ADDED POWER, FIVE MINUTES LATER OIL APPEARED ON COWLING, AGAIN LOST MORE POWER, MORE OIL ON COWLING. FEATHERED ENGINE AND LANDED. NR 1 CYLINDER HAD SEPARATED AT THE BOTTO
- [SDR JIKA2014012801](https://openairdocs.org/sdr/JIKA2014012801.md): Cylinder · faulty · Jan 28, 2014 · N3553F · Piper PA31350 · Reciprocating Engine Cylinder Section
  > DURING CLIMB OUT 100 FT PRIOR TO LEVEL OFF IN CRUISE 3000 MSL, RT ENG BEGAN TO SURGE ± 200 RPM. PILOT TURNED ON ELEC FUEL PUMPS & ADDED FULL FUEL MIXTURE, PROP & THROTTLE. RT ENG BEGAN TO VIBRATE & INTENSITY OF SURGING BEGAN TO INCREASE. PILOT CHECKED ENG I
- [SDR CA130328013](https://openairdocs.org/sdr/CA130328013.md): Housing · cracked · Mar 27, 2013 · Piper PA31350 · Landing Gear Actuator
  > (CAN) DURING LANDING GEAR SWINGS TO RECTIFY GEAR INDICATION DEFECT, HYDRAULIC FLUID WAS FOUND LEAKING FROM THE NR 1 MLG HYDRAULIC ACTUATOR, OZONE P2329-3. UPON INVESTIGATION, THE ACTUATOR BODY WAS FOUND CRACKED ALONG THE SEAM BETWEEN THE INLET AND OUTLET PORT
- [SDR T8VA20130215001](https://openairdocs.org/sdr/T8VA20130215001.md): Downlock Hook · sticking · Feb 15, 2013 · N713WT · Piper PA31350 · Main Landing Gear
  > NO GREEN LIGHT INDICATION ON LT MAIN GEAR, JACKED ACFT AND FOUND GEAR FULLY DOWN AND SECONDARY LOCK NOT FULLY ENGAGED TO MAKE THE GEAR LOCKED SWITCH. REMOVED SECONDARY LOCK ASSY FOR INSPECTION. FOUND NO MECHANICAL DEFECTS. CLEANED AND LUBRICATED ALL PARTS A
- [SDR CA121130010](https://openairdocs.org/sdr/CA121130010.md): Cylinder Head · cracked · Nov 27, 2012 · Piper PA31350 · Reciprocating Engine Cylinder Section
  > (CAN) ON INSPECTION OF ENGINE, IT WAS NOTED THAT THE NR 1 CYLINDER ON NR 1 ENGINE WAS CRACKED ON THE UPPER SURFACE BETWEEN THE FIRST 2 COOLING FINS ON THE INTAKE SIDE THUS ALLOWING FUEL TO SPRAY OUT ALONG THE FINS PAST THE EXHAUST AND ONTO THE UPPER COWLING.
- [SDR CA120914011](https://openairdocs.org/sdr/CA120914011.md): Torque Link · cracked · Sep 13, 2012 · Piper PA31350 · Nose/Tail Landing Gear Strut/Axle
  > (CAN) DURING ROUTINE INSPECTION MAINTENANCE FOUND THE LT MLG UPPER TORQUE LINK CRACKED AT THE ATTACH HOLE TO LOWER TORQUE LINK. THIS TORQUE LINK IS AN STC INSTALL FROM BOUNDARY LAYER INC. SUPER CHIEFTAIN KIT.
- [SDR EPUA20120813003](https://openairdocs.org/sdr/EPUA20120813003.md): Support · broken · Feb 22, 2012 · N3536B · Piper PA31350 · Exhaust Turbocharger
  > DURING SCHEDULED ENGINE INSPECTION, THE LT BOTTOM TUBE OF THE TURBOCHARGER SUPPORT WAS FOUND BROKEN NEAR THE WELDED GUSSET.
- [SDR JIKA11051001](https://openairdocs.org/sdr/JIKA11051001.md): Exhaust Pipe · damaged · Aug 16, 2011 · N600TS · Piper PA31350 · Engine Collector/Tailpipe/Nozzle
  > IN CRUISE FLIGHT, RT ENGINE STARTED SPUTTERING BECAUSE THE RT OUTBOARD FUEL TANK WAS GOING EMPTY. THE PILOT SWITCHED BOTH FUEL TANKS TO THE INBOARDS AND AT THAT POINT THE RT ENGINE FAILED. THE PILOT FOLLOWED THE FAILED ENGINE PROCEDURE AND TRIED TO RESTART T
- [SDR 2009FA0001065](https://openairdocs.org/sdr/2009FA0001065.md): Shaft · sheared · Nov 23, 2009 · N131PJ · Piper PA31310 · Engine Fuel Pump
  > ENGINE DRIVEN FUEL PUMP FAILURE. PUMP FAILED WITH 106.7 HRS ON IT. (K)
- [SDR CA090409005](https://openairdocs.org/sdr/CA090409005.md): Oil Filter · warped · Apr 7, 2009 · Piper PA31350 · Reciprocating Engine Oil System
  > (CAN) AFTER TAKEOFF, CREW NOTICED A PITCH CHANGE FROM RT ENGINE AND OBSERVED RT TACHOMETER INDICATING A DROP IN RPM. ENG CONTROLS WERE ADVANCED AND RPM CAME UP TO 2400 RPM BUT CONTINUED TO DROP. PILOT TURNED BACK TOWARDS AIRPORT AND FEATHERED ENGINE. ACFT LAND
- [SDR F2P2008F00001](https://openairdocs.org/sdr/F2P2008F00001.md): Housing · cracked · Sep 24, 2008 · N684JJ · Piper PA31350 · Engine Starter
  > RT ENGINE FAILED TO START ON GROUND. FOUND REAR OF STARTER MOTOR HOUSING WITH 2 INCH X 2 INCH HOLE LOCATED AT THE BRUSH HOUSING. (K)
- [SDR 2008FA0000531](https://openairdocs.org/sdr/2008FA0000531.md): Seal · leaking · Jul 28, 2008 · N3589X · Piper PA31350 · Engine Fuel Pump
  > FUEL PUMP DRIVE SHAFT SEAL FAILED RESULTING IN LARGE FUEL LEAK AT DRAIN. (K)

## 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 engine_model_key = 'LTIO540J2B'
ORDER BY difficulty_date DESC
```

This list as a web page: https://openairdocs.org/engine/lycoming-ltio-540-j2b/reports

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