# Service difficulty reports: Lycoming O-360-A1H A list on [Lycoming O-360-A1H](https://openairdocs.org/engine/lycoming-o-360-a1h.md). Newest first. General aviation reporting is voluntary. - [SDR 2010FA0000760](https://openairdocs.org/sdr/2010FA0000760.md): Structure · torn · Jul 9, 2010 · N881FT · Piper PA44180 · Wing Main, Frame Structure > PILOT REPORTED THAT DURING FLIGHT, NOTICED THAT WING TIP OF LT WING WAS NOT LEVEL WITH WING. ACFT WAS LANDED AT CLOSEST AIRPORT. INSP REVEALED THAT LOWER WING TIP HAD SHEARED AWAY FROM ATTACHMENT SCREWS ON THE LOWER SECTION OF FIBERGLASS WING TIP, IN MY VIEW - [SDR CA070815001](https://openairdocs.org/sdr/CA070815001.md): Spring · broken · Aug 13, 2007 · Piper PA44180 · Landing Gear Retraction/Extension System > (CAN) ON A LANDING APPROACH, THE PILOT NOTICED THAT THE LT (GREEN) GEAR DOWN AND LOCKED LIGHT WAS NOT ILLUMINATED. AS THE AIRCRAFT WAS SLOWED DOWN ON FINAL THE (GEAR) UNSAFE LIGHT CAME ON. THE PILOTS ELECTED TO GO AROUND AND INFORMED FLIGHT SERVICES ABOUT THEI - [SDR CA060621005](https://openairdocs.org/sdr/CA060621005.md): Flange · cracked · Jun 20, 2006 · Piper PA44180 · Fuel Control/Reciprocating Engines > (CAN) DURING ROUTINE INSPECTION OF RT ENGINE A.5 INCH CRACK WAS OBSERVED ALONG A SCRIBE LINE ON THE FORWARD FACE OF THE CARB AIR BOX NEAR TO THE LOWER MOUNTING BOLT HOLE. AFTER REMOVAL, (2) ADDITIONAL CRACKS WERE OBSERVED ALONG A SCRIBE MARK NEAR TO THE UPPE - [SDR CA060508009](https://openairdocs.org/sdr/CA060508009.md): Spar · cracked · Apr 24, 2006 · Piper PA44180 · Fuselage, Landing Gear Attach Fittings > DURING COMPLETION OF SB1143, A 1 INCH CRACK WAS OBSERVED RADIATING OUT FROM THE LOWER AFT BOLT HOLE OF THE LT DRAG LINK TRUNNION MOUNTING. FURTHER INVESTIGATION REVEALED A.5 INCH CRACK RADIATING OUT FROM LOWER AFT BOLT HOLE OF RT DRAG LINK TRUNNION MOUNTING. - [SDR CA060508012](https://openairdocs.org/sdr/CA060508012.md): Rib · cracked · Apr 24, 2006 · Piper PA44180 · Wing, Rib/Bulkhead > DURING COMPLETION OF INSPECTION REQUIRED BY PIPER SB 1161, A 2.5 INCH LONG CRACK WAS OBSERVED IN THE RT WING RIB AND 3 INCH LONG IN THE LT WING RIB AT STN 49.25. THE CRACKS WERE LOCATED IN THE BEND RADIUS UNDER THE MLG SIDE BRACE MOUNT (PN 95643-09). NEW RIB - [SDR CA060508007](https://openairdocs.org/sdr/CA060508007.md): Control Cable · frayed · Apr 18, 2006 · Piper PA44180 · Aileron Control System > DURING EVENT INSPECTION OF DETAILED WING (RT) BROKEN STRANDS WERE OBSERVED ON RT AILERON BALANCE CABLE AS IT PASSED OVER A PULLEY AT WING STATION 22.00. CABLE AND PULLEY WERE REMOVED. CABLE WAS REPLACED NEW, PULLEY WAS CLEANED INSPECTED, LUBRICATED AND RETUR - [SDR CA060508008](https://openairdocs.org/sdr/CA060508008.md): Spar · cracked · Apr 18, 2006 · Piper PA44180 · Fuselage, Landing Gear Attach Fittings > DURING COMPLETION OF PIPER SB 1143 A 3/4" CRACK WAS OBSERVED RADIATING OUT FROM THE LOWER AFT BOLT HOLE OF THE NLG DRAG LINK TRUNNION MOUNTING. FURTHER INVESTIGATION REVEALED A 1/2" CRACK RADIATING OUT FROM THE LOWER AFT BOLT HOLE OF THE RT DRAG LINK TRUNNION - [SDR CA060508010](https://openairdocs.org/sdr/CA060508010.md): Rib · cracked · Apr 18, 2006 · Piper PA44180 · Wing, Rib/Bulkhead > DURING COMPLETION OF INSPECTION REQUIRED SB 1161, A 2 INCH LONG CRACK WAS OBSERVED IN THE LT WING RIB AT STN 49.25. THE CRACK WAS LOCATED IN THE BEND RADIUS UNDER THE MAIN LANDING GEAR (MLG) SIDE BRACE ASSEMBLY (PN 95643-08). A NEW RIB WAS INSTALLED. BEFORE - [SDR CA060508011](https://openairdocs.org/sdr/CA060508011.md): Rib · cracked · Apr 18, 2006 · Piper PA44180 · Wing, Rib/Bulkhead > DURING COMPLETION OF INSPECTION REQUIRED SB 1161, A 3 IN LONG CRACK WAS OBSERVED IN THE RT WING RIB AT STN 49.25. THE CRACK WAS LOCATED IN THE RIB BEND RADIUS UNDER THE MLG SIDE BRACE MOUNT (PN 95643-09). A NEW RIB WAS INSTALLED. BEFORE RE-INSTALLATION SHAR - [SDR 2006FA0000118](https://openairdocs.org/sdr/2006FA0000118.md): Magneto · inoperative · Jan 30, 2006 · N295ND · Piper PA44180 · Magneto/Distributor > ON ENGINE INSPECTION RUN-UP MAGNETO RPM DROP NORMAL. WHEN MECHANIC ATTEMPTED TO CHECK TIMING, FOUND TIMING 20 DEGREES LATE. REMOVED AND DISASSEMBLED MAGNETO. FOUND DISTRIBUTOR CARBON BRUSH MISSING AND ROTOR SHAFT BROKEN AT BASE OF SLOT FOR POINT CAM. ALSO - [SDR 2005FA0001253](https://openairdocs.org/sdr/2005FA0001253.md): Starter · broken · Aug 29, 2005 · N191ND · Piper PA44180 · Engine Cranking > PILOT ATTEMPTED START BUT STARTER WOULD NOT CRANK. UPON VISUAL INSP OF STARTER FOUND BENDIX HAD STUCK IN THE EXTENDED POSITION ON THE PREVIOS START CAUSINING THE GEAR TO BREAK AND BREAKING 2 MOUNTING PADS OF THE BENDIX HOUSING. DAMAGE WAS ALSO NOTED ON THE ENG - [SDR CA041224010](https://openairdocs.org/sdr/CA041224010.md): Mount · cracked · Dec 22, 2004 · Piper PA44180 · Engine Mount Section > (CAN) DURING AN EVENT NR 3 INSPECTION THE LT ENGINE MOUNT WAS FOUND TO BE CRACKED AT THE UPPER RT SUPPORT TUBE AT THE WELDING POINT WHERE IT MEETS THE RUBBER MOUNT ISCOLATOR WEB. THIS MOUNT HAD PIPER SB 1033 CARRIED OUT AT THE UPPER LT SUPPORT TUBE. - [SDR OG52004F00003](https://openairdocs.org/sdr/OG52004F00003.md): Intake Valve · fractured · Oct 4, 2004 · N295ND · Piper PA44180 · Reciprocating Engine Cylinder Section > DURING CRUISE FLIGHT PILOT EXPERIENCED SURGING M/P ON LT ENGINE AND VIBRATION ON FINAL. INSPECTION FOUND NR 2 CYLINDER INTAKE VALVE FRACTURED WITH PIECES IN NR 2 AND NR 3 COMBUSTION CHAMBERS. CYLINDER HEAD AND PISTON TOPS DAMAGED IN BOTH CYLINDERS FROM CONTA - [SDR CA040604002](https://openairdocs.org/sdr/CA040604002.md): Piston · broken · May 19, 2004 · Piper PA44180 · Reciprocating Engine Power Section > (CAN) DURING NR 1 INSP, A SIG AMOUNT OF NON-FERROUS METAL WAS FOUND IN OIL FILTER ELEMENT. OIL SUCTION SCREEN WAS PULLED AND WAS FOUND TO BE FULL OF NON-FERROUS METAL. CYL NR 1 WAS PULLED AND FWD PISTON PIN PLUG WAS FOUND TO BE WORN COMPLETELY ALLOWING PISTO - [SDR CA040517002](https://openairdocs.org/sdr/CA040517002.md): Control Cable · frayed · May 11, 2004 · Piper PA44180 · Autopilot System > (CAN) WHILE REMOVING AN ELECTIC TRIM SERVO FOR THE STABILATOR SYSTEM, IT WAS NOTICED THAT THE FORWARD STABILATOR TRIM CABLE WAS FRAYED AT THE AREA THAT IT WAS WOUND AROUND THE ELECTIC TRIM SERVO PULLEY. THE CABLE WAS REPLACED WITH A NEW ONE. THIS AREA SHOULD - [SDR CA040408007](https://openairdocs.org/sdr/CA040408007.md): Spring · broken · Apr 8, 2004 · Piper PA44180 · Landing Gear Retraction/Extension System > (CAN) DURING A LANDING GEAR INSPECTION THE NOSE LANDING GEAR INNER ASSIST SPRING WAS FOUND BROKEN AT THE UPPER HOOK. THERE WAS NO INDICATION OF ANY LANDING GEAR MALFUNCTION IN THE FLIGHT PREVIOUS TO THE INSPECTION. THE LANDING GEAR INSPECTION WAS PART OF AN - [SDR 2004FA0000138](https://openairdocs.org/sdr/2004FA0000138.md): Keeper · worn · Jan 28, 2004 · N930ER · Piper PA44180 · Reciprocating Engine Cylinder Section > DURING A ROUTINE INSPECTION, AND WHILE ACCOMPLISHING SB 388, IT WAS DISCOVERED THAT THE VALVE KEY RETAINERS (P/N-17C21191) ON THE EXHAUST VALVE, WERE WORN WHERE THEY CONTACT THE ROTATOR CAP. THE WEAR WAS RADICALLY ORIENTED, AND DEPTH WAS ESTIMATED APPROXIMATEL - [SDR CA031201008](https://openairdocs.org/sdr/CA031201008.md): Spring · worn · Nov 27, 2003 · Piper PA44180 · Main Landing Gear Attach Section > (CAN) UPON DISCOVERY OF A BROKEN DOWNLOCK SPRING THE LT DOWNLOCK SPRING WAS INSPECTED AND IT WAS FOUND TO BE WORN ON THE LOWER END ON THE CURVED PART OF THE SPRING WHERE IT HOOKS ONTO THE TRUNION. THIS SPRING KEEPS THE DOWNLOCK HOOKS IN PLACE. IF IT BREAKS T - [SDR CA030605011](https://openairdocs.org/sdr/CA030605011.md): Battery Pack · cracked · Jun 2, 2003 · Piper PA44180 · Emergency Locator Beacon > (CAN) WHILE CHANGING A BATTERY PACK IN AN ELT, THE CASING WAS NOTICED TO BE CRACKED ATTHE SCREW HOLES. IF THE BATTERIES HAD LEAKED THE ACID COULD LEAK ON TO THE BATTERY TRAY & THE AIRCRAFT SURROUNDING STRUCTURE. THIS HAS HAPPENED TWICE BEFORE. WE HAVE AN IN - [SDR FQA2003F00000](https://openairdocs.org/sdr/FQA2003F00000.md): Air Box · cracked · Feb 13, 2003 · N304PA · Piper PA44180 · Engine Air Intake System > CARBURETOR HEAT BOX CRACKS WHERE AIR INTAKE AND HEAT INTAKE FLANGE MOUNTS TO BOX. MIXTURE CONTROL BRACKET CRACKED. CARBURETOR HEAT CONTROL CABLE BRACKET CRACKING AT HARDWARE MOUNTING HOLES. POTENTIAL TO CAUSE FOD TO CARBURETOR AND/OR ENGINE IS HIGH. - [SDR FQA2003F00001](https://openairdocs.org/sdr/FQA2003F00001.md): Baffle · cracked · Feb 13, 2003 · N304PA · Piper PA44180 · Engine Collector/Tailpipe/Nozzle > BAFFLE CRACKS UNDER DOUBLER THAT SUPPORTS OIL COOLER. CRACKS START IN BEND RADIUS AND RUN TO RIVETS. THESE CRACKS ARE BETWEEN 1 AND 2 INCHES LONG IN TWO LOCATIONS AND HAVE THE POTENTIAL TO LOOSE ALL OIL COOLER SUPPORT. - [SDR CA020607012](https://openairdocs.org/sdr/CA020607012.md): Skin · cracked · Jun 3, 2002 · Piper PA44180 · Ailerons > (CAN) DURING AN EVENT NR 3 INSPECTION AN APPROXIMATE 1 INCH CRACK WAS FOUND ON THE LOWER SURFACE OF THE LT AILERON. THE CRACK WAS LOCATED NEAR THE INBOARD END OF THE AILERON AT THE TRAILING EDGE OF THE SIXTH STIFFENING BEAD. THE AILERON WAS REMOVED AND REPLACE - [SDR CA011031024](https://openairdocs.org/sdr/CA011031024.md): Heater · broken · Oct 5, 2001 · Piper PA44180 · Air Intake Anti/De-Ice System > (CAN) DURING A ROUTINE ENGINE INSPECTION OF THE LT ENGINE, THE CARB AIR BOX WAS FOUND BROKEN AT THE HEATED AIR INTAKE PIPE. THE COMPLETE CIRCUMFERENCE OF THE WELD ON THE RT END OF THE BOX HAD BROKEN. THE ONLY REASON THE PART STAYED WITH THE AIRCRAFT WAS THE CL - [SDR CA991028035](https://openairdocs.org/sdr/CA991028035.md): Filter · mismanufactured · Oct 6, 1999 · Piper PA44180 · Reciprocating Engine Oil System > (CAN) QUALITY CONTROL PROBLEM OF ONE FILTER IN STOCK BATCH. - [SDR 98ZZZX1855](https://openairdocs.org/sdr/98ZZZX1855.md): Gear Lockplate · broken · Apr 30, 1998 · N191ND · Piper PA44180 · Reciprocating Engine Power Section > DURING SCHEDULED ENGINE INSPECTION, CRANKSHAFT LOCK TAB WAS FOUND IN THE OIL SUMP SCREEN. REMOVED SUMP AND ACCESSORY HOUSING TO VERIFY. TAB ON BOLT WAS CONFIRMED BROKEN. CRANKSHAFT GEAR BOLT WAS FOUND TO HAVE MINIMAL TORQUE REMAINING. (LESS THAN 100 INCH/P - [SDR 97ZZZX3879](https://openairdocs.org/sdr/97ZZZX3879.md): Distributor Gear · worn · Aug 13, 1997 · N925ER · Piper PA44180 · Magneto/Distributor > MAGNETO WAS RECEIVED BY THIS REPAIR STATION FOR A MANUFACTURER'S RECOMMENDED 500-HOUR INSPECTION. INTERNAL INSPECTION REVEALED THE TEETH ON BOTH THE ROTOR AND DISTRIBUTOR GEARS WERE EXCESSIVELY WORN. IT WAS FURTHER NOTED THAT MOISTURE CONTAMINATION HAD RESULT - [SDR CA970815011](https://openairdocs.org/sdr/CA970815011.md): Battery Pack · damaged · Aug 13, 1997 · Piper PA44180 · Emergency Locator Beacon > (CAN) UPON REMOVAL FOR TRANSFER TO ANOTHER AIRCRAFT, THE SPLIT IN THE CASE AND THE LEAKING ELECRTOLYTE WAS FOUND. THE EXPIRATION WAS FEB/98 AND THE RECERTIFICATION WAS DEC/97, WELL WITHIN LIMITS. - [SDR 97ZZZX3170](https://openairdocs.org/sdr/97ZZZX3170.md): Drain Plug · defective · Jun 1, 1997 · N924ER · Piper PA44180 · Reciprocating Engine Oil System > FOUND SEAL ON OIL SIDE OF DRAIN SWOLLEN CAUSING THE QUICK DRAIN TO OOZE AND NOT DRAIN PROPERLY. - [SDR 97ZZZX3171](https://openairdocs.org/sdr/97ZZZX3171.md): Drain Plug · defective · Jun 1, 1997 · N923ER · Piper PA44180 · Reciprocating Engine Oil System > DURING ROUTINE INSPECTION, FOUND OIL DRAIN O-RING NOT SEATED PROPERLY. - [SDR CA960422005](https://openairdocs.org/sdr/CA960422005.md): Micro Switch · wires cut · Apr 18, 1996 · Piper PA44180 · Landing Gear Position and Warning > (CAN)RIGHT HAND MAIN GEAR SAFE LIGHT FAILED TO ILLUMINATE. SAFE LANDING WAS ACCOMPLISHED AND INVESTIGATION FOUND THE WIRES ON THE MICRO SWITCH HAD BEEN "SAWED THROUGH" BY A PLASTIC TIE WRAP AS THE GEAR CYC LED. - [SDR CA960214016](https://openairdocs.org/sdr/CA960214016.md): Oil Cooler · leaking · Jan 20, 1996 · Piper PA44180 · Engine Oil Cooler > (CAN)ON WALKAROUND THE PILOT NOTICED OIL COMING FROM THE RIGHT HAND ENGINE. INVESTIGATION FOUND OIL COOLER SHOWED SIGNS OF LEAKAGE. COOLER REMOVED AND PRESSURE TESTED AND FOUND TO HAVE PIN HOLES. COOLER RE PLACED WITH A NEW UNIT. ## 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 = 'O360A1H' ORDER BY difficulty_date DESC ``` This list as a web page: https://openairdocs.org/engine/lycoming-o-360-a1h/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.