# Service difficulty reports: Piper PA-31-350

A list on [Piper PA-31-350](https://openairdocs.org/model/piper-pa-31-350.md).

Newest first. General aviation reporting is voluntary.

Page 1 of 45 · 2,232 reports

- [SDR 1SMA2025F00255](https://openairdocs.org/sdr/1SMA2025F00255.md): O-Ring · cut · Nov 2, 2025 · N4078J · Piper PA31350 · Hydraulic System, Main
  > AFTER TAKEOFF, LANDING GEAR FAILED TO RETRACT (STUCK IN TRANSIT). RECYCLING LEVER TO DOWN ALSO FAILED; NO GREEN LIGHTS ILLUMINATED. VISUAL CHECK SHOWED NOSE GEAR STUCK IN A HALFWAY POSITION. PILOT EXECUTED EMERGENCY GEAR EXTENSION CHECKLIST AND SUCCESSFULLY DE
- [SDR 2025FA0000641](https://openairdocs.org/sdr/2025FA0000641.md): Connecting Rod · failed · Aug 16, 2025 · N312AK · Piper PA31350 · Reciprocating Engine Cylinder Section
  > NR 6 CONECTING ROD FAILED IN FLIGHT.
- [SDR 1SMA2025030600058](https://openairdocs.org/sdr/1SMA2025030600058.md): Turbocharger · failed · Mar 6, 2025 · N606JS · Piper PA31350 · Exhaust Turbocharger
  > AIRCRAFT EXPERIENCED A LEFT ENGINE POWER FLUCTUATION DURING CRUISE AT 3,500 FEET, EN ROUTE FROM ROTA (GRO) TO SAIPAN (GSN). THE PILOT-IN-COMMAND (PIC) OBSERVED MANIFOLD PRESSURE FLUCTUATIONS BETWEEN 28-22 INCHES OF MERCURY AND NOTED INCONSISTENT ENGINE POWER.
- [SDR 2025FA0000001](https://openairdocs.org/sdr/2025FA0000001.md): Fitting · leaking · Jan 3, 2025 · N316AK · Piper PA31350 · Aircraft Fuel Distribution System
  > 45 INCH ALUMINUM PORTION OF THE FUEL HOSE ASSY FROM ACFT TO ENGINE FUEL PUMP APPEARS TO HAVE CRACKED, CAUSING FUEL TO SPRAY ON EXHAUST AND CAUSED AN INFLT FIRE.
- [SDR 2024FA0000979](https://openairdocs.org/sdr/2024FA0000979.md): Crankcase · damaged · Dec 15, 2024 · N41148 · Piper PA31350 · Reciprocating Engine Power Section
  > AT CRUISE ALTITUDE, AN OIL PRESSURE FLUCTUATION WAS OBSERVED ON NO.1 ENGINE INSTRUMENTS. ALSO NOTICED A SMALL OIL STREAK ON NO. 1 ENGINE COWL. DECISION WAS IMMEDIATELY MADE TO RETURN TO BASE, FOR FURTHER INVESTIGATION BY ENGINEERS.
- [SDR 2024F00293](https://openairdocs.org/sdr/2024F00293.md): Fitting · cracked · Nov 20, 2024 · N316AK · Piper PA31350 · Aircraft Fuel Distribution System
  > 45° ALUMINUM PORTION OF FUEL HOSE ASSY FROM AIRFRAME TO ENGINE FUEL PUMP APPEARS TO HAVE CRACKED CAUSING FUEL TO SPRAY ON EXHAUST AND CAUSE IN-FLIGHT FIRE.
- [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 2024FA0000506](https://openairdocs.org/sdr/2024FA0000506.md): Fan · failed · Jul 19, 2024 · N524ER · Piper PA31350 · Air Distribution Fan
  > PILOT REPORTED SMOKE IN COCKPIT ON TAXI. MECHANIC INSPECTED WIRING COMPONENTS IN AIRCRAFT INTERIOR AND FOUND NO DAMAGED COMPONENTS OR WIRING. ALL SYSTEMS GROUND CHECKED GOOD THRU MULTIPLE POWER CYCLES EXCEPT AN ABANDONED AVIONICS COOLING FAN. MECHANIC CAPPED A
- [SDR ENHA2024070500097](https://openairdocs.org/sdr/ENHA2024070500097.md): Fan · damaged · Jul 3, 2024 · N14AP · Piper PA31350 · Air Distribution Fan
  > LOUD NOISE FOLLOWED BY SOME ELECTRICAL SMOKE SMELL IN COCKPIT DURING T/O ROLL AND CLIMB OUT. POTENTIALLY GROUND VENT FAN. MECHANIC REMOVED FOREIGN OBJECT FROM VENT FAN, PULLED AND SECURED CIRCUIT BREAKER. MEL'D IAW 21-5.
- [SDR 2024FA0000457](https://openairdocs.org/sdr/2024FA0000457.md): O-Ring · damaged · Jun 18, 2024 · N122AW · Piper PA31350 · Hydraulic System, Main
  > LANDING GEAR WILL NOT LOCK ON EXTENSION. MANUALLY PUMPED GEAR DOWN AND LOCKED WITH THREE GREEN LIGHTS. WE FOUND THE RH ENGINE HYDRAULIC FILTER RESERVOIR LEAKING FROM THE O-RING. REMOVED HYDRAULIC FILTERS VERIFIED NO CONTAMINANTS AND REPLACED O-RING. THE HY
- [SDR 1AZA202402160033](https://openairdocs.org/sdr/1AZA202402160033.md): Magneto · intermittent · Feb 13, 2024 · N122AW · Piper PA31350 · Magneto/Distributor
  > LEFT ENGINE LOST POWER 25 MILES FROM FXE: RAN THE LEFT ENGINE, DURIN MAGNETO CHECK ON LH MAGNETO ENGINE LOST POWER, ON BOTHMAGNETO'S (DUAL MAGNETO SET UP) RAN GOOD FOR ABOUT FIVE MINUTES, LOST POWER AND CONTINUED THAT WAY, FUALT WAS CONFIRMED ON THE MAGENTO.
- [SDR 1AZA2024021500032](https://openairdocs.org/sdr/1AZA2024021500032.md): Magneto · intermittent · Feb 13, 2024 · N122AW · Piper PA31350 · Magneto/Distributor
  > LEFT ENGINE LOST POWER 25 MILES FROM FXE: RAN THE LEFT ENGINE, DURIN MAGNETO CHECK ON LH MAGNETO ENGINE LOST POWER, ON BOTHMAGNETO'S (DUAL MAGNETO SET UP) RAN GOOD FOR ABOUT FIVE MINUTES, LOST POWER AND CONTINUED THAT WAY, FUALT WAS CONFIRMED ON THE MAGENTO.
- [SDR 2024FA0000274](https://openairdocs.org/sdr/2024FA0000274.md): Fillet · cracked · Feb 8, 2024 · N4678 · Piper PA31350 · Wing Main, Frame Structure
  > WE HAVE FOUND EVIDENCE OF CRACKING ON THE BULKHEAD - WING FILLET, STA. 181
- [SDR 1SMA2023120408001](https://openairdocs.org/sdr/1SMA2023120408001.md): O-Ring · dislodged · Nov 8, 2023 · N606JS · Piper PA31350 · Main Landing Gear
  > DURING APPROACH TO AIRPORT WHEN THE LANDING GEAR SELECTOR HANDLE WAS MOVED TO THE DOWN POSITION, THE RED GEAR UNSAFE LIGHT REMAINED ILLUMINATED, THE GEAR DOWN/LOCKED LIGHTS REMAINED EXTINGUISHED, AND THE NOSE GEAR COULD BE SEEN IN THE NACELLE MIRROR TO ONLY BE
- [SDR 2023FA0000703](https://openairdocs.org/sdr/2023FA0000703.md): Unknown · unknown · Oct 13, 2023 · Piper PA31350 · Heating System
  > PILOT REPORTED SMOKE IN THE COCKPIT UNKNOWN LOCATION. UPON INVESTIGATION BY OUR LEAD MECHANIC WE FOUND THE HEATER FLAMED OUT. OPS CHECKED GOOD NO DEFECTS WERE FOUND. AND AIRCRAFT RETURNED TO SERVICE. THE JANITROL HEATER WAS CLOSE TO TBO. AND WAS REPLACED WITH
- [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 ENHA LP233910](https://openairdocs.org/sdr/ENHA%20LP233910.md): Seal · leaking · May 19, 2023 · N14AP · Piper PA31350 · Engine Exhaust System
  > LEFT ENGINE BLUBBERED THEN DIED WHILE TURNING AROUND TO TAKEOFF. MECHANICS FOUND #1 CYLINDER SPARK PLUGS FOULED AND WET WITH GAS. MECHANICS REPLACED ALL PARK PLUGS ON LEFT HAND ENGINE. MECHANICS FOUND #1 INTAKE TUBE O-RING PINCHED AND ROLLED, MECHANICS REPLAC
- [SDR 1AZA123122001](https://openairdocs.org/sdr/1AZA123122001.md): Engine · making metal · Dec 31, 2022 · N42HD · Piper PA31350 · Engine (Reciprocating)
  > THE AIRCRAFT WAS ENROUTE, THE PILOT NOTED A LOSS OF MANIFOLD PRESSURE FOLLOWED BY A LOSS OF RPM IN THE RT ENGINE. THE PILOT INITIATED AN ENGINE SHUTDOWN UPON NOTICING THE OIL PRESSURE DROPPING. THE ENGINE WAS SECURED AND THE FLIGHT ROUTED TO NASSAU FOR LAND
- [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 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 2022FA0000659](https://openairdocs.org/sdr/2022FA0000659.md): Landing Gear · slow · Oct 28, 2022 · N312AK · Piper PA31350 · Nose/Tail Landing Gear
  > RETRACTED GEAR AFTER TAKE OFF, HANDLE RETURNED TO NEUTRAL, NOSE GEAR SLOWLY PARTIALLY EXTENDED. CONTINUED TO DESTINATION GEAR EXTENDED NORMALLY.
- [SDR 2022F00373](https://openairdocs.org/sdr/2022F00373.md): Sleeve · seized · Sep 29, 2022 · N315AK · Piper PA31350 · Magneto/Distributor
  > 1193 TSO ALUMINUM SLEEVE INSTALLED AT UNKNOWN TIME SEIZED ON MAGNETO DRIVE GEAR AND WAS SPINNING IN CASE BORE.
- [SDR 2022FA0000407](https://openairdocs.org/sdr/2022FA0000407.md): Combustion Tube · burned out · Jul 29, 2022 · Piper PA31350 · Heating System
  > HARTZELL ENGINE TECHNOLOGIES (JANITROL) HEATER ASSEMBLY P/N 65D79-3IS, S/N A00020017 OVERHAULED TO ZERO-TIME ON 5/20/2013 BY THIS REPAIR STATION (IS4R269M) WITH THE INCONEL UPGRADE KIT. UPON INSPECTION WE FIND THE COMBUSTION TUBE P/N 88D95-1(IS), S/N H130410 H
- [SDR 1SMA20220726001](https://openairdocs.org/sdr/1SMA20220726001.md): Link Assy · cracked · Jul 26, 2022 · N108JL · Piper PA31350 · Landing Gear System
  > WHILE PERFORMING NOSE LANDING GEAR LINK ASSEMBLY PN:40336-00 INSPECTION 500 HOUR REPETITIVE INSPECTION PER PIPER SERVICE LETTER NO. 1088 A CRACK INDICATION WAS FOUND DURING 10X MAGNIFYING VISUAL INSPECTION. CRACK CONFIRMED DURING LIQUID PENETRANT INSPECTION.
- [SDR 1SMA20220717001](https://openairdocs.org/sdr/1SMA20220717001.md): Filter Housing · cracked · Jul 17, 2022 · N108JL · Piper PA31350 · Hydraulic System, Main
  > DURING APPROACH PHASE WHEN ATTEMPTING TO EXTEND THE LANDING GEAR, THE GEAR FAILED TO FULLY EXTEND WITH THE ENGINE DRIVEN PUMPS. PILOT SUCCESSFULLY EXTENDED GEAR USING THE EMERGENCY EXTENSION HANDLE. AFTER LANDING POST FLIGHT REVEALED SIGNIFICANT AMOUNT OF HYDR
- [SDR 2022F00297](https://openairdocs.org/sdr/2022F00297.md): Filter Housing · cracked · Jul 17, 2022 · N108JL · Piper PA31350 · Hydraulic System, Main
  > DURING APPROACH PHASE WHEN ATTEMPTING TO EXTEND THE LANDING GEAR, THE GEAR FAILED TO FULLY EXTEND WITH THE ENGINE DRIVEN PUMPS. PILOT SUCCESSFULLY EXTENDED GEAR USING THE EMERGENCY EXTENSION HANDLE. AFTER LANDING POST FLIGHT REVEALED SIGNIFICANT AMOUNT OF HYDR
- [SDR ENHA202206270001](https://openairdocs.org/sdr/ENHA202206270001.md): Strobe · shorted · Jun 24, 2022 · N40749 · Piper PA31350 · Exterior Lighting
  > ANTI-COLLISION AND POSITION LIGHT CIRCUIT BREAKERS POPPED; STRONG SMELL OF BURNING ELECTRICAL IN COCKPIT. MAINTENANCE INSPECTED AIRCRAFT AND FOUND THE TAIL NAV/STROBE LIGHT ASSEMBLY HAD SHORTED.
- [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 2022FA0000117](https://openairdocs.org/sdr/2022FA0000117.md): Cable Assy · loose · Feb 24, 2022 · N74825 · Piper PA31350 · Landing Gear Retraction/Extension System
  > N74825 DECLARED AN EMERGENCY FOR LANDING GEAR MALFUNCTION DURING APPROACH TO LAND AT 3J7, GREEN COUNTY AIRPORT, GREENSBORO GA. LANDING GEAR WOULD NOT EXTEND NORMALLY OR ALTERNATELY. AIRCRAFT DID A LOW APPROACH PAST TOWER TO VERIFY LANDING GEAR WERE NOT DOWN. A
- [SDR HXXC2022F00098](https://openairdocs.org/sdr/HXXC2022F00098.md): None · none · Feb 23, 2022 · N312AK · Piper PA31350 · Landing Gear Retraction/Extension System
  > NOSE GEAR WARNING LIGHT DID NOT ILLUMINATE WHEN EXTENDED. LIGHT CAME ON AT TOUCH DOWN. LUBED GEAR AND AJUSTED NOSE ACTUATOR. TEST GOOD. AMENDMENT TO 2022F00098 02/23/2022 ONLINE
- [SDR 2022F00098](https://openairdocs.org/sdr/2022F00098.md): None · none · Feb 23, 2022 · N312AK · Piper PA31350 · Landing Gear Retraction/Extension System
  > NOSE GEAR WARNING LIGHT DID NOT ILLUMINATE WHEN EXTENDED.
- [SDR 1SMA20220222001](https://openairdocs.org/sdr/1SMA20220222001.md): Door · misrigged · Feb 22, 2022 · N35475 · Piper PA31350 · Cargo/Baggage Doors
  > WHILE IN LEVEL CRUISE FLIGHT, THE LOWER CABIN ENTRY DOOR AND AFT CARGO DOOR CAME OPEN, UNCOMMANDED, RESULTING IN A PRECAUTIONARY LANDING. PRIOR TO THE UNCOMMANDED OPENING, THE CABIN DOOR UNSAFE LIGHT WAS EXTINGUISHED AND BOTH THE PILOT AND RAMP AGENT CONFIRME
- [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 1AZA20210729001](https://openairdocs.org/sdr/1AZA20210729001.md): Landing Gear · collapsed · Sep 26, 2021 · N3VM · Piper PA31350 · Landing Gear Retraction/Extension System
  > AIRCRAFT WAS ON ROLLOUT DURING A NORMAL LANDING. THE LANDING GEAR INDICATED DOWN AND LOCKED. THE LANDING GEAR HANDLE HAD RETURNED TO NEUTRAL DURING THE LANDING GEAR EXTENSION PHASE. DURING ROLLOUT, THE LEFT MAIN LANDING GEAR COLLAPSED AND THE AIRCRAFT VEERE
- [SDR 1AZA20210728001](https://openairdocs.org/sdr/1AZA20210728001.md): Housing · failed · Jul 19, 2021 · N4118B · Piper PA31350 · Hydraulic System, Main
  > THE LEFT SIDE HYDRAULIC SYSTEM FILTER BOWL ASSEMBLY SEPARATED FROM THE UPPER FILTER HOUSING DUE TO A FAILURE IN THE THREAD PORTION OF THE FILTER BOWL. NO STRESS ON THE BOWL COULD BE DETECTED AND THE REASON FOR THE FAILURE REMIANS UNKNOWN. FAILURE OF THE BOWL
- [SDR 1AZA20210514001](https://openairdocs.org/sdr/1AZA20210514001.md): Landing Gear · malfunctioned · May 14, 2021 · N42HD · Piper PA31350 · Landing Gear Retraction/Extension System
  > THE NOSE LANDING GEAR DID NOT EXTEND FULLY DURING APPROACH AS WAS SEEN BY THE INSPECTION MIRROR. THE PILOT ABORTED THE APPROACH AND IN TROUBLESHOOTING EXTENDED THE LANDING GEAR TO THE FULLY LOCKED POSITION WITH THE MANUAL EXTENSION HAND PUMP. THE LANDING GEA
- [SDR GAJA01.04.21.01](https://openairdocs.org/sdr/GAJA01.04.21.01.md): Detector · failed · Jan 4, 2021 · N31932 · Piper PA31350 · Stall Warning System
  > STALL WARNING HORN ACTIVATED IN STRAIGHT AND LEVEL FLIGHT, PILOT CONTINUED NORMAL OPERATIONS AND LANDED SAFELY. UPON TROUBLESHOOTING, FOUND LIFT DETECTOR (ON-WING) TO HAVE INTERNALLY FAILED. REPLACED LIFT DETECTOR, ALL CHECKS GOOD.
- [SDR GAJA12.15.20.01](https://openairdocs.org/sdr/GAJA12.15.20.01.md): Bolt · loose · Dec 15, 2020 · N31932 · Piper PA31350 · DC Generating System
  > LOSS OF LEFT ALTERNATOR FOLLOWED BY LOSS OF DEICE COMPONENTS LEAD PILOT TO TAKE EMERGENCY ACTION IN IMC AND DIVERT BACK TO ORIGIN. UPON INSPECTION FOUND LEFT ALTERNATOR BELT TENSIONER BOLT TO HAVE LOOSENED UP, CAUSING THE LEFT ALTERNATOR BELT TO BECOME LOOSE.
- [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 HXXC20200810357](https://openairdocs.org/sdr/HXXC20200810357.md): Cowling · failed · Aug 8, 2020 · N312AK · Piper PA31350 · Nacelle/Pylon, Main Frame
  > FIBERGLASS TORE ALONG THE LEADING EDGE FASTENERS OF THE COWLING AND THE UPPER COWLING BEGAN TO PEEL UP FROM WIND FORCES TEARING FASTENERS FREE AS THE FLIGHT PROGRESSED. PILOT PERFORMED A PRECAUTIONARY LANDING SAFELY WITH NO ISSUES AND THE COWLING WAS REPLACED
- [SDR J4YR202004132454](https://openairdocs.org/sdr/J4YR202004132454.md): Cylinder · cracked · Apr 13, 2020 · N443M · Piper PA31350 · Reciprocating Engine Cylinder Section
  > RIGHT ENGINE #1 CYLINDER INDICATED ZERO DURING A COMPRESSION CHECK. UPON CLOSER EXAMINATION A CRACK WAS DISCOVERED AROUND THE UPPER SPARK PLUG HOLE THAT EXTENDED INTO THE INTAKE PORT BETWEEN COOLING FINS 14 AND 15. THIS IS THE 2ND FAILURE ON THIS AIRCRAFT AND
- [SDR ENHA201912190001](https://openairdocs.org/sdr/ENHA201912190001.md): Landing Gear · malfunctioned · Dec 18, 2019 · N4107Q · Piper PA31350 · Landing Gear Retraction/Extension System
  > LH MLG RED LIGHT ON WHEN GEAR SUPPOSED TO BE DOWN. CYCLED GEAR, PUMPED GEAR DOWN, ACTIVATED NITROGEN BOTTLE TO BLOW DOWN. NO CHANGE. VISUAL CONFIRMATION GEAR WAS DOWN AND A/C LANDED.
- [SDR ENHA201912020001](https://openairdocs.org/sdr/ENHA201912020001.md): Connector · unsecure · Nov 29, 2019 · N4170Q · Piper PA31350 · Landing Gear System Wiring
  > LANDING ON APPROACH TO KING COVE. PILOT OBSERVED ON TWO GREEN INDICATIONS FOR LANDING GEAR.(LEFT GREN MAIN WAS OUT) RED TRANSIENT WAS ON.PERFORMED GO AROUND TO COLD BAY. MANUAL EXTENSION WAS ATTEMPTED. STILL TWO GREEN. GO AROUND ALL THREE GEAR DOWN AND APPEARE
- [SDR EPUA201910165001](https://openairdocs.org/sdr/EPUA201910165001.md): Latch · failed · Oct 15, 2019 · N4301C · Piper PA31350 · Passenger/Crew Doors
  > DOOR (PILOT) OPENING IN FLIGHT WHEN CONFIRMED SHUT / LOCKED ON THE GROUND. MAINTENANCE ADJUSTED PILOT DOOR LATCH MECHANISM IAW M.M 52-20-02 AND FIGURE 52-2. LUBRICATED DOOR LATCH MECHANISM IAW M.M. 12-20-04 FIG. 12-7. OPS CHECK GOOD.
- [SDR EPUA201908087001](https://openairdocs.org/sdr/EPUA201908087001.md): Probe · false indication · Aug 7, 2019 · N4301C · Piper PA31350 · Cylinder Head Temperature (CHT) Indicating System
  > LEFT ENGINE CHT RED LINE IN CRUISE FLIGHT. REMOVED AND REPLACED LH ENGINE CHT PROBE IAW PA31 MM 77-20-03. OPS CHECK GOOD.
- [SDR CA190708014](https://openairdocs.org/sdr/CA190708014.md): Bridal Cable · broken · Jul 4, 2019 · Piper PA31350 · Auto Flight System
  > (CAN) PILOT REPORTED AUTOPILOT PITCHES NOSE UP 1000 FT/MIN. AUTOPILOT INITIALLY DEFERRED PER MEL. AME FOUND DURING TROUBLE SHOOTING THE PITCH SERVO BRIDLE CABLE HAD BROKEN, AND PART OF THAT CABLE WAS STUCK AROUND A MOUNTING FASTER FOR THE PITCH SERVO. SEE ATTA
- [SDR CA190503022](https://openairdocs.org/sdr/CA190503022.md): Isolation Mount · torn · May 2, 2019 · Piper PA31350 · Engine Mount Section
  > (CAN) LH ENGINE, UPPER OUTBOARD ISOLATION MOUNT, FORWARD ISOLATOR FOUND COMPLETELY TORN AND UNSERVICEABLE. THE REMAINING THREE ISOLATOR MOUNTS ARE DETERIORATED AND REQUIRE REPLACEMENT. THERE WAS NO INDICATION OF FAULT OR ABNORMAL OCCURRENCES. (TC# 20190503022)
- [SDR EPUA20190510001](https://openairdocs.org/sdr/EPUA20190510001.md): Door Seal · damaged · May 2, 2019 · N4112K · Piper PA31350 · Passenger/Crew Doors
  > PILOT REPORTS THAT THE AUTOPILOT ANNUNCIATOR LIGHTS BEGAN FLASHING, WENT OUT AND THEN THE AUTOPILOT TURNED OFF. THE DG PORTION OF THE HSI FROZE ON A HEADING OF 065 AND THEN PILOT REPORTS A SMELLED SOMETHING LIKE BURNT RUBBER OR ELECTRICAL. MAINTENANCE INSPEC
- [SDR CA190506013](https://openairdocs.org/sdr/CA190506013.md): Line · broken · Apr 30, 2019 · Piper PA31350 · Hydraulic System, Main
  > (CAN) CREW WENT TO SELECT GEAR DOWN AND THE GEAR DOORS WOULD NOT OPEN AND THE GEAR WOULD NOT RETRACT. AFTER MANY ATTEMPTS THE CREW LANDED IN XXXXX WITH THE GEAR UP. NO INJURIES HAPPENED AFTER RESULT OF LANDING. AFTER THE AIRCRAFT WAS REMOVED FROM THE RUNWAY AN

Next page: https://openairdocs.org/model/piper-pa-31-350/reports.md?page=2

## 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 = 'PA31350'
ORDER BY difficulty_date DESC
```

This list as a web page: https://openairdocs.org/model/piper-pa-31-350/reports

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