# Service difficulty reports: N44AC A list on [N44AC](https://openairdocs.org/aircraft/N44AC.md). Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model. Newest first. - [SDR EPUA201902260001](https://openairdocs.org/sdr/EPUA201902260001.md): Seal · leaking · Feb 20, 2019 · N44AC · Piper PA31350 · Reciprocating Engine Oil System > DURING CRUISE LEFT ENGINE DEVELOPED AN OIL LEAK. PILOT ELECTED TO SHUTDOWN ENGINE. MAINTENANCE INDICATED THAT THE NOSE SEAL DEVELOPED AND OIL LEAK. DUE TO THE TIME REMAINING ON THE ENGINE, ENGINE WILL BE REPLACED AS OPPOSED TO REPAIR. - [SDR EPUA20180927001](https://openairdocs.org/sdr/EPUA20180927001.md): Uplock Hook · out of adjust · Sep 27, 2018 · N44AC · Piper PA31350 · Landing Gear Retraction/Extension System > PILOT REPORTED THAT THE LANDING GEAR "NOT LOCKED" LIGHT WAS ILLUMINATED WITH GEAR EXTENDED. MAINTENANCE PERFORMED THE FOLLOWING IN ORDER TO RETURN THE AIRCRAFT TO SERVICE. PERFORMED DETAILED INSPECTION OF LANDING GEAR. LUBRICATED LANDING GEAR SYSTEM. ADJUSTED - [SDR EPUA20170829001](https://openairdocs.org/sdr/EPUA20170829001.md): Motor · failed · Aug 29, 2017 · N44AC · Piper PA31350 · Heating System > HEATER SMELLED HOT DURING DESCENT. MAINTENANCE INSPECTED THE HEATER NO EXTERNAL DEFECTS NOTED. FURTHER INSPECTION REVEALED THAT THE COMBUSTION BLOWER MOTOR AND FUEL REGULATOR REQUIRED REPLACEMENT IN ORDER TO RETURN THE HEATER TO A SERVICEABLE CONDITION. - [SDR EPUA20170908001](https://openairdocs.org/sdr/EPUA20170908001.md): Channel · cracked · Aug 24, 2017 · N44AC · Piper PA31350 · Fuselage Miscellaneous Structure > A CHANNEL WAS FOUND CRACKED AT HYDRAULIC POWER PACK RELIEF NOTCH CUTOUT. FABRICATED A NEW PART IAW HAG-40987-2-SA-PO8150, AND DRAWING, HAG40987-2 AND INSTALLED. - [SDR EPUA20170421001](https://openairdocs.org/sdr/EPUA20170421001.md): Drive Shaft · sheared · Apr 21, 2017 · N44AC · Piper PA31350 · Propeller Governor > ENGINE RPM DROPPED FROM 2200 TO 1900 DURING CRUISE. UNABLE TO CONTROL RPM ON LEFT ENGINE AFTER RPM DROP. PROP FEATHERED ON GROUND WHEN SHUTTING DOWN ENGINE. MAINTENANCE DISCOVERED THE NUMBER ONE ENGINE PROP GOVERNOR HAD SHEARED THE DRIVE SHAFT FOR THE PROP - [SDR EPUA20140911001](https://openairdocs.org/sdr/EPUA20140911001.md): Valve · failed · Sep 11, 2014 · N44AC · Piper PA31350 · Reciprocating Engine Power Section > DURING FLIGHT, THE LT ENGINE BEGAN TO HAVE PROBLEMS, THE PILOT SHUTDOWN THE ENGINE & SECURED FOR OPERATION ON SINGLE ENGINE. ACFT LANDED UNEVENTFULLY. ON INVESTIGATION, DETERMINED THAT THE NR 1 CYLINDER INTAKE VALVE BROKE AND PUT A HOLE IN THE NR 1 CYLIND - [SDR EPUA2012081001](https://openairdocs.org/sdr/EPUA2012081001.md): Uplock Roller · inoperative · Aug 7, 2012 · N44AC · Piper PA31350 · Landing Gear Retraction/Extension System > NOSE LANDING GEAR STUCK WHEN LANDING GEAR DOWN SELECTED. NOSE GEAR TRAILED AT A 45 DEGREE ANGLE, RETRACTED OK, THEN WAS HARD TO GET OUT WHEN CYCLED DOWN AGAIN. MAINT SERVICED RESERVOIR AND REPLACED UPLOCK ROLLER. - [SDR EPUA2012062902](https://openairdocs.org/sdr/EPUA2012062902.md): O-Ring · leaking · Jun 28, 2012 · N44AC · Piper PA31350 · Hydraulic System, Main > GEAR WOULD NOT EXTEND WITH GEAR SELECTOR IN DOWN POSITION, HAD TO USE EMERGENCY GEAR EXTENSION. FOUND O-RING LEAKING ON RIGHT FILTER HOUSING. REPLACED BOTH LT AND RT FILTER HOUSING O-RINGS. SERVICED HYD FLUID. OPS CHECK ON GROUND SATISFACTORY. - [SDR EPUA2012062901](https://openairdocs.org/sdr/EPUA2012062901.md): Line · leaking · Jun 26, 2012 · N44AC · Piper PA31350 · Hydraulic System, Main > LANDING GEAR WOULD NOT CYCLE TO UP OR DOWN, HAD TO PUMP GEAR DOWN WITH EMERGENCY GEAR EXTENSION. MX FOUND LT FILTER ASSY LEAKING WITH HYD LINE ON ACFT SIDE FILTER ELEMENT. REPLACED FILTER, O-RING AND FILTER ASSY. PERFORMED SUCTION LEAK TEST. SERVICED SYS, - [SDR EPUA2012062701](https://openairdocs.org/sdr/EPUA2012062701.md): Hydraulic System · low · Jun 25, 2012 · N44AC · Piper PA31350 · Hydraulic System, Main > HAD TO MANUALLY PUMP GEAR DOWN TO GET 3 GREEN, MX SERVICED HYD POWER PACK WITH FLUID, OPS CHECK SATISFACTORY. - [SDR EPU2011F00000](https://openairdocs.org/sdr/EPU2011F00000.md): Bowl · cracked · Dec 9, 2010 · N44AC · Piper PA31350 · Hydraulic Filter, Main > LANDING GEAR HAD TO BE EXTENDED MANUALLY. FOUND HYD FILTER BOWL CRACKED. - [SDR FFS2006F00008](https://openairdocs.org/sdr/FFS2006F00008.md): Seal · leaking · Nov 15, 2006 · N44AC · Piper PA31350 · Exhaust Turbocharger > PILOT REPORTED ON LANDING DURING ROLLOUT/TAXI, THAT SMOKE ENTERED THE CABIN. UPON INVESTIGATION FOUND THAT THE LT ENGINE TURBOCHARGER OIL SEAL FAILED AND CAUSED SIGNIFICANT SMOKE FROM THE EXHAUST. THE PILOT REPORTED THAT DUE TO WIND DIRECTION, THAT THE SMOKE - [SDR 99ZZZX4390](https://openairdocs.org/sdr/99ZZZX4390.md): Valve · failed · Nov 15, 1999 · N44AC · Piper PA31350 · Engine Oil Temperature Regulator > RIGHT ENGINE REPORTED AS HAVING OIL TEMPERATURES NEAR RED LINE IN CRUISE. REPLACED BYPASS VALVE AND TEST FLIGHT SHOWED NORMAL TEMPS. FOUND REMOVED VALVE WAS STUCK IN THE CLOSED POSITION. - [SDR 99ZZZX2347](https://openairdocs.org/sdr/99ZZZX2347.md): Circuit Breaker · failed · Jun 11, 1999 · N44AC · Piper PA31350 · Landing Gear Retraction/Extension System > PILOT REPORTED THE LANDING GEAR HANDLE WOULD NOT RETURN TO NEUTRAL POSITION AFTER TAKEOFF. THE LANDING GEAR WAS EXTENDED AND ALL THREE GEAR DOWN INDICATORS CAME ON, BUT THE GEAR HANDLE WOULD SITLL NOT RETURN TO NEUTRAL POSITION. A PRECAUTIONARY LANDING WAS M - [SDR 96ZZZX2507](https://openairdocs.org/sdr/96ZZZX2507.md): Skin · wrong part · Apr 23, 1996 · N44AC · Piper PA31350 · Fuselage Main, Plate/Skin > DURING REPAIR TO BELLY OF AIRCRAFT AFTER A GEAR UP LANDING, BELLY SKIN FOUND TO BE A FACTORY MADE SKIN THAT WAS MEASURED AT 0.032 INCH THICK. ACCORDING TO PIPER SM, PN 761-448, FIGURE 4-21, THIS SKIN SHOULD BE 0.040 INCH THICK. THE ADJOINING SKINS WERE CHECK - [SDR 95ZZZX2900](https://openairdocs.org/sdr/95ZZZX2900.md): Trim Servo · cable misrouted · May 26, 1995 · N44AC · Piper PA31350 · Autopilot Trim Servo > DURING ROUTINE INSPECTION, THE ELEVATOR TRIM TAB RIGGING WAS FOUND OUT OF LIMITS. AFTER REFERRING TO AUTOPILOT INSTALLATION MANUAL, IT WAS DETERMINED THE ELECTRIC TRIM SERVO HAD THE TRIM CABLE IMPROPERLY ROUTED AROUND ITS CAPSTAND AND PULLEYS. THE ROUTING CA ## 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 n_number = 'N44AC' AND registry_match = 'registration' ORDER BY difficulty_date DESC ``` This list as a web page: https://openairdocs.org/aircraft/N44AC/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.