# Service difficulty reports: Mooney M20C

A list on [Mooney M20C](https://openairdocs.org/model/mooney-m20c.md).

Newest first. General aviation reporting is voluntary.

Page 1 of 2 · 79 reports

- [SDR 2025FA0000473](https://openairdocs.org/sdr/2025FA0000473.md): Support · cracked · Jul 10, 2025 · N367DE · Mooney M20C · Fuselage, Landing Gear Attach Fittings
  > LANDING GEAR ACTUATOR AFT LUG SUPPORT BRACKET CRACKED
- [SDR 2025FA0000472](https://openairdocs.org/sdr/2025FA0000472.md): Support · cracked · Oct 14, 2024 · N7087V · Mooney M20C · Fuselage, Landing Gear Attach Fittings
  > LANDING GEAR ACTUATOR AFT LUG SUPPORT CRACKED.
- [SDR 2024FA0000748](https://openairdocs.org/sdr/2024FA0000748.md): Exhaust Duct · leaking · Oct 3, 2024 · N78875 · Mooney M20C · Engine Collector/Tailpipe/Nozzle
  > THE POWER FLOW EXHAUST INSTALLED ON THIS AC WAS FOUND TO HAVE EXTEME LEAKAGE INTO CABIN. THIS WAS A REBUILT EXHAUST LHE OWNER HAD LNSTALLED ON 10/22/22 AFTER THE THE FIRST POWERFLOW EXHAUST WAS FOUND LEAKING. THIS IS THO SEVENTH POWERFLOW EXHAUST SYSTEM THAT
- [SDR 2019FA0000054](https://openairdocs.org/sdr/2019FA0000054.md): Hydraulic Line · corroded · Mar 5, 2019 · N79334 · Mooney M20C · Hydraulic System, Main
  > HYDRAULIC LINE FROM RESERVOIR THAT RUNS ALONG THE INSIDE OF THE FIREWALL AND DOWN THE RIGHT CABIN WALL TO JUST BELOW THE FORWARD EDGE OF CABIN DOOR WAS FOUND CORRODED THROUGH IN TWO LOCATION. THE FIRST LOCATION WAS WHERE THE LINE RUNS BEHIND THE RADIO COOLING
- [SDR 2017FA0000389](https://openairdocs.org/sdr/2017FA0000389.md): Actuator · worn · Dec 13, 2016 · N6831V · Mooney M20C · Landing Gear Actuator
  > LANDING GEAR ACTUATOR HAD TWO FAILURES. THE ELECTRIC MOTOR FAILED DUE TO EXTREMELY WORN ARMATURE AND BRUSHES. THE EMERGENCY ENGAGE/DISENGAGE GEARS WERE EXTREMELY WORN AND BOUND UP WHEN ATTEMPTING TO ENGAGE THE EMERGENCY EXTENSION. THE MOONEY SERVICE MANUAL FOR
- [SDR 2015FA0000522](https://openairdocs.org/sdr/2015FA0000522.md): Electrical Box · faulty · Oct 12, 2015 · N9146V · Mooney M20C · Flight Control System
  > MECHANIC INSTALLED NEW STARTER, STARTER SOLENOID, MASTER SOLENOID. SYSTEM WORKED FOR MORE THAN 10 CYCLES BUT NOT MORE THAN 20 CYCLES WHEN, AFTER A MONTH OF NO USAGE, ACFT STARTER WOULD NOT RESPOND TO START EFFORT. TROUBLESHOOTING REVEALED THAT MASTER SOLENOI
- [SDR 2015FA0000376](https://openairdocs.org/sdr/2015FA0000376.md): Exhaust Pipe · damaged · Aug 11, 2015 · N7887V · Mooney M20C · Engine Collector/Tailpipe/Nozzle
  > THE EXHAUST TUBE FROM THE TURBO CHARGER TO THE MUFFLER FAILED AT THE WELD WITH A SUBSEQUENT FIRE.
- [SDR 2015FA0000341](https://openairdocs.org/sdr/2015FA0000341.md): Hub · cracked · Jun 9, 2015 · Mooney M20C · Propeller Hub Section
  > INSPECTING IAW EDDY CURRENT, ON PROPELLER IAW 2009-22-03, RECEIVED INDICATION OF CRACK. REMOVED PROPELLER AND REJECTED HUB DUE TO INDICATION NO ALLOWABLE UNDER AD NOTE 2009-22-03. AFTER REJECTION, GROUND SHOT PEENING OFF OF HUB AND FOUND CRACK INDICATION UND
- [SDR EVGR201502200001](https://openairdocs.org/sdr/EVGR201502200001.md): Coil · worn · Feb 20, 2015 · N6335Q · Mooney M20C · Magneto/Distributor
  > THE MAGNETO WAS INSTALLED NEW. DURING THE FIRST 500 HOUR INSPECTION, WE DISCOVERED THE COIL WAS INSTALLED WITH THE TAB NOT CORRECTLY ADJUSTED AND CAUSING ABNORMAL WEAR.
- [SDR 2014FA0000233](https://openairdocs.org/sdr/2014FA0000233.md): Selector Valve · damaged · Mar 11, 2014 · N6271U · Mooney M20C · Fuel Selector/Shut-Off Valve
  > FUEL SELECTOR VALVE HANDLE MOVES ON SHAFT. HANDLE WILL MOVE FROM STOP TO STOP AND NOT CHANGE TANKS.
- [SDR EVGR201402280001](https://openairdocs.org/sdr/EVGR201402280001.md): Elt · corroded · Feb 26, 2014 · N6335Q · Mooney M20C · Emergency Locator Beacon
  > EMERGENCY LOCATOR BEACON, CORROSION WAS FOUND ON 1 OF 4 OUTSIDE CASE SCREWS. INSIDE CORROSION WAS FOUND ON THE POWER CONNECTOR NEGATIVE LEAD ON THE ELECTRONICS SIDE. THERE WAS ACID FILLING THE INSIDE OF THE NEGATIVE CONNECTOR. NO CORROSION WAS FOUND AT ALL
- [SDR 2013FA0000290](https://openairdocs.org/sdr/2013FA0000290.md): Truss · broken · May 21, 2013 · N6566U · Mooney M20C · Main Landing Gear
  > NOSE GEAR COLLAPSED, FOUND NOSE RETACTION TRUSS HAD FAILED IN FOUR PLACES. THE RETRACT ROD BRACE WAS ATTACHED TO TRUSS WITH FOUR TUBES ALL FOUR TUBES BROKE FROM THE NOSE TRUSS. TWO TUBES SHOWS INDICATION OF STRESS CRACKS AROUND THE AREA THE TUBE BROKE.
- [SDR 2012FA0000199](https://openairdocs.org/sdr/2012FA0000199.md): Autopilot Sys · malfunctioned · Apr 11, 2012 · N5888Q · Mooney M20C · Autopilot System
  > DISCONNECTED AUTOPILOT AND HAND FLEW ACFT FOR SEVERAL MINUTES. SHORTLY AFTER INITIATING DESCENT TO LAND, AILERONS BEGAN TO "SEIZE." ELEVATOR STILL HAD FULL MOVEMENT, THEN IT ALSO BEGAN TO SEIZE. IT TOOK ABOUT FIVE TO TEN SECONDS TO LOSE AILERON AUTHORITY, T
- [SDR 2011FA0000067](https://openairdocs.org/sdr/2011FA0000067.md): Housing · faulty · Jan 13, 2011 · N6811U · Mooney M20C · Reciprocating Engine Oil System
  > REMOVED VERNATHERM HSG (PN 700117) WHICH WAS INSTALLED ON 04/19/1996 IAW MFG, STC SA4172NM (DATED 04/01/1993) AS ADAPTER FOR EXTERNAL OIL FILTER. ANNUAL INSP (DATED 01/13/2011) DISCOVERED 2 PROBLEMS RELATED TO THE ORIGINAL VERNATHERM HOUSING PN 700117: WEAR
- [SDR FK8R201010080005](https://openairdocs.org/sdr/FK8R201010080005.md): Bracket · cracked · Oct 8, 2010 · N6784N · Mooney M20C · Engine Oil Cooler
  > OIL COOLER MOUNTING BRACKET WAS FOUND CRACKED.
- [SDR 2009FA0000834](https://openairdocs.org/sdr/2009FA0000834.md): Selector Valve · seized · Feb 28, 2009 · N2652W · Mooney M20C · Fuel Selector/Shut-Off Valve
  > FUEL SELECTOR SEIZED IN THE LEFT TANK POSITION. WAS ABLE TO CONTINUE TO DESTINATION ON REMAINING FUEL LOAD IN LEFT TANK.
- [SDR CA080428002](https://openairdocs.org/sdr/CA080428002.md): Cylinder Head · cracked · Apr 25, 2008 · Mooney M20C · Reciprocating Engine Cylinder Section
  > (CAN) ON TAKEOFF PILOT FELT SLIGHT VIBRATION THROUGH RUDDER PEDALS. AFTER GETTING TO HIS CRUISE LEVEL THE VIBRATION GOT WORSE. HE RETURNED TO THE AIRPORT, AC WAS BROUGHT INTO MAINT SHOP AND COWLING WAS REMOVED. COMPRESSION TEST WAS COMPLETED AND IT WAS FOUND T
- [SDR 2008FA0000219](https://openairdocs.org/sdr/2008FA0000219.md): Selector Valve · seized · Feb 5, 2008 · N6529U · Mooney M20C · Fuel Selector/Shut-Off Valve
  > FUEL SELECTOR VALVE SEIZED IN THE (OFF) POSITION DURING A ROUTINE FUEL TANK SWITCHOVER. FAILURE CAUSED BY CORROSION ON SELECTOR VALVE SHAFT WHERE IT PASSES THROUGH THE UPPER VALVE HOUSING. POOR DESIGN. NO PROVISION MADE TO PREVENT SPILLED LIQUIDS OR MOISTUR
- [SDR CA070828005](https://openairdocs.org/sdr/CA070828005.md): Block · corroded · Jul 26, 2007 · Mooney M20C · Trailing Edge Flaps
  > (CAN) RT WING CENTER FLAP HINGE BLOCK HAD SERIOUS INTER-GRANULAR CORROSION. CORROSION APPEARS TO HAVE STARTED IN THE PORTION OF THE BLOCK THAT IS USED AS A STOP. THE STOP IS NOT EMPLOYED IN THE LOCATION THIS HINGE BLOCK WAS INSTALLED, (AFFECTED HINGE BLOCK, CE
- [SDR 2006FA0001048](https://openairdocs.org/sdr/2006FA0001048.md): Leg Assy · damaged · Oct 3, 2006 · N78880 · Mooney M20C · Nose/Tail Landing Gear
  > NOSE GEAR COLLAPSED UPON LANDING. INITIAL INSPECTION FOUND BOTH TUBES ON THE NOSE GEAR LEG ASSEMBLY BROKEN. RETRACT MECHANISM TUBES BENT. UNABLE TO DETERMINE WHICH COMPONENTS WERE DAMAGED PRIOR TO THE INCIDENT. PILOT REPORTED THAT THE LANDING GEAR WAS HARD
- [SDR 2005FA0001563](https://openairdocs.org/sdr/2005FA0001563.md): Throttle Cable · disconnected · Sep 8, 2005 · N6821V · Mooney M20C · Power Lever
  > PILOT REPORTED THAT ON RUNUP, HE WAS UNABLE TO CONTROL RPM. INVESTIGATION DETRMINED THAT THE THROTTLE CABLE HAD COME DISCONNECTED FROM THE CARBURETOR THROTTLE ARM. BOLT WAS PRESENT, BUT NUT AND COTTER PIN WERE MISSING INSTALLED PROPER HARDWARE AND FUNCTIONAL
- [SDR CA050322001](https://openairdocs.org/sdr/CA050322001.md): Shaft · separated · Mar 21, 2005 · Mooney M20C · Engine RPM Indicating System
  > (CAN) TACHOMETER CABLE DRIVE SEPARATED FROM OUTER SHAFT HOUSING, AND TURNING BELOW TRUE ENGINE RPM WHICH IN TURN GAVE FALSE INDICATION.
- [SDR 2006FA0000177](https://openairdocs.org/sdr/2006FA0000177.md): Idler Gear · damaged · Mar 14, 2005 · N1202X · Mooney M20C · Reciprocating Engine Power Section
  > ENGINE FAILED IN FLIGHT PRELIMINARY INSPECTION REVEALED CAMSHAFT AND ASSOCIATED CRANKSHAFT IDLER GEAR WAS SEPARATED FROM CRANKSHAFT DRIVE GEAR IDLER GEAR SLOWS EVIDENCE OF DAMAGE TO DRIVE TEETH. UNABLE TO DETERMINE AT THIS TIME WHETHER THE CAMSHAFT OR LT MAGN
- [SDR AU510001820](https://openairdocs.org/sdr/AU510001820.md): Spar · corroded · Jan 9, 2005 · Mooney M20C · Wing Spar
  > DURING MOD REPAIR, NUMEROUS DEFECTS FOUND RELATING MAINLY TO CORROSION IN WING & ATTACH STRUCTURE. FOLLOWING DEFECTS FOUND, EXFOLIATION OF EXTRUSIONS ON REAR SPAR CAPS IN BOTH W/W. CNTR SECTION OF 1 PIECE WING OPENED UP FOR INSPECT & REVEALED OLD FIBERGLASS
- [SDR CA041222005](https://openairdocs.org/sdr/CA041222005.md): Mount · broken · Dec 17, 2004 · Mooney M20C · Engine Mount Section
  > (CAN) DURING ENGINE OIL AND FILTER CHANGE, VISUAL INSPECTION FOUND THE ENGINE MOUNT P/N 590000, STRUT FORK CRACKED. THE FORK ATTACHES TO THE ENGINE MOUNT BLOCK P/N 590002, AFFIXED TO THE FIREWALL.
- [SDR 2004FA0000858](https://openairdocs.org/sdr/2004FA0000858.md): Angle · corroded · Aug 27, 2004 · N6832V · Mooney M20C · Fuselage Miscellaneous Structure
  > CROSS MEMBER AT STA 103, SUPPORT RUDDER, ELEVATOR PUSH ROD HANGER AND SUPPORTS A HANGER FOR TAIL TRIM TUBE. (GL11200413706)
- [SDR MV5R055NA](https://openairdocs.org/sdr/MV5R055NA.md): Rib · cracked · Jun 25, 2004 · N6034Q · Mooney M20C · Elevator, Spar/Rib
  > REMOVED LT ELEVATOR FOR CRACKED OB RIB PN 430004 AND DAMAGED SKIN. SENT FOR RESKINED THE ELEVATOR WITH OUT CHANGING THE RIB. RETURNED THE ELEVATOR TO GET THE RIB CHANGED AND THEY INSTALLED.2500 INCH HYLOCK FASTENERS IN THE BALANCE WEIGHT INSTEAD OF.1875 IR
- [SDR 2004FA0000320](https://openairdocs.org/sdr/2004FA0000320.md): Gear · worn · Apr 15, 2004 · N78940 · Mooney M20C · Accessory Gearboxes
  > REMOVED OIL PUMP TO CHECK ON TYPE OF GEARS, FOUND SINTERED IRON IMPELLERS. REPLACED WITH HARDEN GEAR KIT.
- [SDR CA040409001](https://openairdocs.org/sdr/CA040409001.md): Tube · bent · Apr 7, 2004 · Mooney M20C · Landing Gear Retraction/Extension System
  > (CAN) RT MAIN GEAR COLLAPSED ON LANDING ROLL OUT. INITIAL FINDING MAIN GEAR ACTUATING TUBE INSIDE BELLY IS BENT. IT IS UNKNOWN IF THIS TUBE WAS BENT BEFORE OR AS RESULT OF GEAR COLLAPSE. FURTHER INFORMATION WILL FOLLOW AS MORE DETAIL INSPECTION/DISASSEMBLY
- [SDR 2004FA0000186](https://openairdocs.org/sdr/2004FA0000186.md): Magneto · failed · Jan 14, 2004 · N6784V · Mooney M20C · Magneto/Distributor
  > ROUGH ENGINE ON RUNUP. MAGNETO REMOVED AND DISASSEMBLED. BEARING CAP ASSEMBLY NOT HELD STATIONARY IN FRAME. RETAINING SCREWS AND TABS WERE FOUND TIGHT BUT NOT TIGHT ON BEARING CAP. BEARINGS FOUND TO BE OK. BELIEVE THAT CAP ON HOUSING WAS MACHINED INCORREC
- [SDR MV5R0551](https://openairdocs.org/sdr/MV5R0551.md): Rib · cracked · Jan 9, 2004 · N6034Q · Mooney M20C · Elevator, Spar/Rib
  > CRACKED OB RIB PN 430004 AND DAMAGED SKIN.
- [SDR 2003FA0000685](https://openairdocs.org/sdr/2003FA0000685.md): Fork · cracked · May 5, 2003 · Mooney M20C · Propeller Controlling System
  > PITCH CHANGE FORK WAS CRACKED, POSSIBLY DUE TO EXCESSIVE ENGINE VIBRATION. PROPELLER HAD 200 HOURS SINCE LAST OVERHAUL. CUSTOMER WAS ADVISED TO HAVE PROPELLER, DYNAMICALLY BALANCED TO AVOID ANY FURTHER DAMAGE TO PROPELLER ASSEMBLY.
- [SDR 2003FA0000528](https://openairdocs.org/sdr/2003FA0000528.md): Skin · corroded · Apr 8, 2003 · N52RM · Mooney M20C · Leading Edge Devices
  > A/C RT WING OB LE SKIN WAS SLIGHTLY DAMAGED DURING TAXING. ACCOMPLISHED REPAIR OF LE AND A/C RETURNED SERVICE. IN COURSE OF INSP, FOUND EXTENSIVE CORROSION ON RT WING SPAR CAP STIFFNER BEHIND COPILOTS SEAT. CORROSION WAS SO EXTENSIVE THAT SPAR CAP STIFFNER
- [SDR 2003FA0000294](https://openairdocs.org/sdr/2003FA0000294.md): Mount · broken · Mar 16, 2003 · N9656M · Mooney M20C · Engine Mount Section
  > DURING CONDUCT OF ANNUAL INSPECTION AND AD 75-09-08 COMPLIANCE, FOUND LOWER RH CORNER WELD JUNCTION FULLY BROKEN AND SEPARATED. SB M20-175 & M20-192 HAD NOT BEEN COMPLETED, THAT WAS DESIGNED TO PREVENT BY INSTALLING GUSSET AT THIS CORNER (P/N 590041-1). MOUN
- [SDR 2003FA0000293](https://openairdocs.org/sdr/2003FA0000293.md): Mount · broken · Mar 16, 2003 · N78865 · Mooney M20C · Engine Mount Section
  > DURING ANNUAL INSPECTION AND AD 75-09-08 COMPLIANCE, FOUND LOWER RT CORNER WELD JUNCTION FULLY BROKEN AND SEPARATED. SB M20-175 & M20-192 HAD NOT BEEN COMPLETED, THAT WAS DESIGNED TO BE PREVENTED BY INSTALLING GUSSET AT THIS CORNER (P/N 590041-1). MOUNT WAS
- [SDR 2003FA0000299](https://openairdocs.org/sdr/2003FA0000299.md): Coupling · failed · Feb 25, 2003 · N111JP · Mooney M20C · Landing Gear Retraction/Extension System
  > B100-06 RUBBER DRIVE COUPLING BETWEEN LANDING GEAR MOTOR AND TRANSMISSION, ABSORBS SHOCK WHEN LANDING GEAR REACHES ITS LIIT, THIS IS THE ONLY CONNECTION BETWEEN TRANSMISSION AND GEAR LINKAGE, WHEN THIS PART FAILED, YOU CANNOT PERFORM ANY GEAR EXTENSION, ELECTR
- [SDR CA030108004](https://openairdocs.org/sdr/CA030108004.md): Adapter · corroded · Dec 3, 2002 · Mooney M20C · Fuel Storage
  > (CAN) DURING ANNUAL INSPECTION CORROSION WAS FOUND IN THE AREA OF THE ADAPTER FOR THE FUEL FILLER CAP WHERE THE O-RING SEALS AGAINST WATER ENTERING THE FUEL TANK.
- [SDR 2002FA0001157](https://openairdocs.org/sdr/2002FA0001157.md): Line · failed · Sep 21, 2002 · N6231U · Mooney M20C · Reciprocating Engine Oil System
  > DURING FLT,SHORTLY AFTER DEPARTURE FROM LAF, IN CRUISE AT 3,000 FT, PILOT HEARD A POP FROM THE ENGINE. SMOKE FROM FRONT COWLING, AND IN THE COCKPIT. CONTACTED TOWER TO ADVISE OF SITUATION AND BEGAN 180 DEGREE TURN TO RETURN TO LAF. HEARD TWO MORE POPS FROM
- [SDR AUS20020352](https://openairdocs.org/sdr/AUS20020352.md): Seat Belt · faulty · Apr 15, 2002 · Mooney M20C · Flight Compartment Equipment
  > (AUS) BOTH FORWARD SEAT BELTS WERE OF UNKNOWN ORIGIN WITH NOIDENTIFICATION LABLES. BELTS WERE IN EXTREMELY POOR CONDITION.BELTS DID NOT MEET THE REQUIREMENTS OF AD/RES/29. UNAPPROVEDPART. PERSONNEL/MAINTENANCE ERROR.
- [SDR AUS20020351](https://openairdocs.org/sdr/AUS20020351.md): Strut · cracked · Apr 8, 2002 · Mooney M20C · Main Landing Gear Strut/Axle/Truck
  > (AUS) LH MAIN LANDING GEAR LEG ASSEMBLY CRACKED AT THE UPPER FORWARDWELD JOINT.
- [SDR AUS20020273](https://openairdocs.org/sdr/AUS20020273.md): Link · cracked · Mar 1, 2002 · Mooney M20C · Aileron Control System
  > (AUS) AILERON CONTROL LINK CRACKED AT WELDED JOIN.
- [SDR AUS20020272](https://openairdocs.org/sdr/AUS20020272.md): Link · cracked · Mar 1, 2002 · Mooney M20C · Aileron Control System
  > (AUS) AILERON CONTROL LINK CRACKED IN WELD JOIN.
- [SDR AUS20020382](https://openairdocs.org/sdr/AUS20020382.md): Control Rod · cracked · Feb 28, 2002 · Mooney M20C · Aileron Control System
  > (AUS) LT AND RT AILERON CONTROL LINKS CRACKED. FOUND IAW AD/M20/52 & MOONEY SB M20-264.
- [SDR CA020116007](https://openairdocs.org/sdr/CA020116007.md): Propeller · damaged · Nov 6, 2001 · Mooney M20C · Propeller Hub Section
  > (CAN) OWNER DISCOVERED PROP WOULD NOT CYCLE AT PRE-FLIGHT INSPECTION. AIRCRAFT WAS BROUGHT TO THE SHOP AND THE SPINNER WAS REMOVED. GREASE FITTINGS WERE REMOVED AND OIL BEGAN TO RUN OUT. PROP WAS REMOVED AND SENT FOR INSPECTION.
- [SDR AUS20011158](https://openairdocs.org/sdr/AUS20011158.md): Magneto · faulty · Oct 30, 2001 · Mooney M20C · Magneto/Distributor
  > (AUS) MAGNETOS INTERMITTENT IN OP. INSP FOU NDFOLLOWING FAULTS ON BOTH UNITS:-1. CAPACITORS FOUND TO LEAKING ELECT.LY.2. SPUR GEAR FOUND TO BE OF NYLON TYPE WHICH HAS BEEN OBSOLETE FOR MANY YRS&REQD AS PER BENDIX MASTER MANUAL TO BE REPL. 3. DISTRIBUTOR BLOCK
- [SDR 2001FA0000500](https://openairdocs.org/sdr/2001FA0000500.md): Spar Cap · corroded · Oct 28, 2001 · N9671M · Mooney M20C · Wing Spar
  > DURING ANNUAL INSPECTION, WING CARRY THROUGH SPAR WAS FOUND TO HAVE EXFOLIATION CORROSION ON TOP SPAR CAP.
- [SDR AU001167](https://openairdocs.org/sdr/AU001167.md): Structure · corroded · Sep 18, 2000 · Mooney M20C · Fuselage Main, Structure
  > (AUS) AIRCRAFT EXTENSIVELY CORRODED IN BOTH WINGS AND FUSELAGE IN NORMALLY INACCESSIBLE AREAS. AIRCRAFT HAD NO CORROSION PROTECTION AT MANUFACTURE.
- [SDR 20000626SH009](https://openairdocs.org/sdr/20000626SH009.md): Crankshaft · broken · Jun 15, 2000 · N6715U · Mooney M20C · Reciprocating Engine Power Section
  > AIRCRAFT INVOLVED IN AN ACCIDENT BECAUSE OF AN ENGINE FAILURE. THE ENGINE WAS DISASSEMBLED BY THE MANUFACTURER WITH THE FOLLOWING FINDINGS. THE WRONG PART NUMBER CRANKSHAFT WAS INSTALLED IN THE ENGINE. THE SLUDGE TUBES, P/N 71577, WERE NOT INSTALLED ON THE
- [SDR CA000516036](https://openairdocs.org/sdr/CA000516036.md): Structure · corroded · May 9, 2000 · Mooney M20C · Aircraft Structures
  > (CAN) SEVERE CORROSION FOUND DURING ANNUAL INSPECTION. EXFOLIATION CORROSION FOUND AT LT FLAP 3 AND 4 HINGE BRACKET. INTERGRANULAR CORROSION FOUND AT LT MAIN GEAR LINK ATTACHMENT TO MAIN WING SPAR BRACKET. AT THE LT AND RT FUSELAGE TUBING ATTACHMENT TO MAIN
- [SDR 99ZZZX2130](https://openairdocs.org/sdr/99ZZZX2130.md): Actuator · failed · Apr 29, 1999 · N7763M · Mooney M20C · Landing Gear Door Actuator
  > WHEN GEAR WAS SELECTED DOWN, THE GEAR STARTED DOWN THEN TRIPPED THE LANDING GEAR CIRCUIT BREAKER. REMOVAL OF THE GEAR MOTOR REVEALED THE ARMATURE ARCED AND BURNED. ONE OF THE BRUSH LEADS WAS WRAPPED AROUND THE STUD HOLDING THE LEAD. THIS HELD THE BRUSH OFF

Next page: https://openairdocs.org/model/mooney-m20c/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 = 'M20C'
ORDER BY difficulty_date DESC
```

This list as a web page: https://openairdocs.org/model/mooney-m20c/reports

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