Cessna 421C

Service difficulty reports · 427

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duckdb -csv -c "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 = '421C'
  ORDER BY difficulty_date DESC"

Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.

SDR 2008FA0000199Case · crackedREMOVED THIS ENGINE FROM THE RT POSITION FOR SHIPMENT BACK TO RAM AC DUE TO A DAMAGED CASE. DAMAGE APPEARS TO BE CAUSED BY A FAILED CONNECTING ROD THAT BROKE APART AND PUNCTURED (2) LARGE HOLES IN THE CRANKCASE. BRIEF ENGINE HISTORY: 347 HOURS PRIOR TO THE FMar 18, 2008 · N12RJ · Cessna 421C · Engine (Reciprocating)SDR 2007FA0000944Starter · shortedOVERHAULED STARTER FAILED AFTER 30 HOURS. (K)Oct 12, 2007 · N421KD · Cessna 421C · Engine StarterSDR 2007FA0000872Skin · corrodedLT AND RT WING UPPER SKINS UNDER THE NACELLE FUEL BLADDER TANKS HAD CORROSION PRESENT TO THEM AND RELATED AREA AROUND THE BLADDER BAYS. WO NR 10688. (K)Jul 19, 2007 · N648SB · Cessna 421C · Wing, Plate/SkinSDR 2007FA0000498Windshield · brokenMAJOR PORTION OF RT WINDSHIELD SEPARATED FROM AIRCRAFT.May 27, 2007 · N237SM · Cessna 421C · Flight Compartment WindowsSDR CA070510004Cylinder · broken(CAN) WHEN DOING 100 HRS INSP, FOUND DAMAGE ON COVER VALVE ROCKER CYLINDER NR 4, COVER (PN : 631834) REMOVED AND FOUND RETAINER ROCKER SHAFT (PN: 646032) BROKEN. NEW CYLINDER WAS INSTALLED IN POSITION NR 4. ALSO FOUND CYLINDER NR 2 WITH LOW COMPRESSION (50 PSIApr 20, 2007 · Cessna 421C · Reciprocating Engine Cylinder SectionSDR M1144Exhaust Valve · brokenPILOT REPORTED THAT RT ENGINE WAS RUNNING ROUGH IN FLIGHT. HE DID NOT SHUTDOWN ENGINE. FOUND NO COMPRESSION IN NR 5 CYLINDER ON RT ENGINE. REMOVED CYLINDER AND FOUND EXHAUST VALVE WAS BROKEN. INSTALLED OVERHAULED CYLINDER ASSEMBLY.Feb 8, 2007 · N540CA · Cessna 421C · Reciprocating Engine Cylinder SectionSDR FAA200612001Cylinder · separatedDURING TAKEOFF ROLL PILOT REPORTED A LOUD POP FROM THE LEFT ENGINE AND THE AIRCRAFT YAWED TO THE LEFT. THE TAKEOFF WAS ABORTED. VISUAL INSPECTION REVEALED THE NUMBER SIX CYLINDER HEAD HAD SEPARATED FROM THE BARREL. THE ENGINE HAD 554 HOURS SINCE OVERHAUL. THISDec 6, 2006 · N93PJ · Cessna 421C · Reciprocating Engine Cylinder SectionSDR 2006FA0001111Clamp · crackedPN 2274-50 (ALSO PN NH1000897-50) CLAMP HOLDING TAILPIPE TO THE TURBO CRACKED LENGTHWISE ALONG THE CIRCUMFERENCE OF THE CLAMP. TOTAL LENGTH OF THE CRACK IS 3 INCHES.Nov 21, 2006 · Cessna 421C · Engine Collector/Tailpipe/NozzleSDR MLJ2006F00001Skin · debondedRT AILERON WAS REMOVED FROM AIRCRAFT DUE TO DEBONDING. SKIN OF AILERON WAS DEBONDED IN SEVERAL PLACES ALONG THE RIBS AND SPAR. SUSPECTED CAUSE IS AGE. (K)Nov 11, 2006 · N85SC · Cessna 421C · AileronsSDR 2006FA0000985Line · rupturedFUEL HOSE RUPTURED, SPRAYING FUEL ON THE HOT EXHAUST MANIFOLD TO TURBO CHARGER CAUSING AN ENGINE FIRE ON THE GROUND. (K)Sep 22, 2006 · N469S · Cessna 421C · Engine Fuel DistributionSDR 2007FA0000198Bolt · corrodedDURING ACCOMPLISHMENT OF ANNUAL INSPECTION, EXCESSIVE PLAY WAS NOTED AT AFT HINGE POINT OF UPPER MAIN CABIN DOOR. INVESTIGATION REVEALED THAT HINGE BOLT WAS BROKEN, HEAD OF BOLT COULD BE TURNED, BUT END WITH NUT WOULD NOT FOLLOW. TRIED TO REMOVE BOLT BUT WASJul 26, 2006 · N485DS · Cessna 421C · Passenger/Crew DoorsSDR 2006FA0000821Hinge · corrodedTO FIND USED SERVICEABLE HINGES AND HINGE SUPPORT FITTINGS FROM AC SALVAGE COMPANIES, EVERY HINGE THAT WAS RECEIVED, SAME TYPE OF CORROSION, BEARING AND BUSHINGS WERE RUSTED TO HINGE BOLT. BUSHINGS AND BEARING ARE PRESS FIT INTO HINGE SO AS TO ALLOW HINGE ASJul 26, 2006 · N485DS · Cessna 421C · DoorsSDR 1234567890Adapter · failedFAILURE OF STARTER ADAPTER SHAFT GEAR IN FLIGHT CAUSED ENGINE SURGING AND LOSS OF POWER. PILOT THEN FOLLOWED APPROPRIATE AFM SHUT DOWN PROCEDURES. POST FLIGHT INSPECTION REVEALED FAILURE OF THE STARTER ADAPTER SHAFT GEAR ASSEMBLY RESULTING IN METAL CONTAMINAApr 12, 2006 · N421R · Cessna 421C · Engine StarterSDR ISW1520050019Adapter · failedTHE ENGINE QUIT RUNNING AND SEIZED DURING FLIGHT. THE STARTER ADAPTER FAILED AND CAUSED THE ENGINE TO SEIZE. MAINTENANCE RECORDS SHOW THAT THE STARTER WAS REPLACED TWO TIMES BECAUSE OF HARD STARTING. ONCE AT 99 HOURS AND AGAIN AT 90 HOURS PRIOR TO ENGINE FAIFeb 23, 2006 · N421LH · Cessna 421C · Engine Starting SystemSDR N582006F00000Case Half · crackedRT ENGINE WAS SHUTDOWN IN FLIGHT DUE TO EXTREME SHAKING. PROP FEATHERED OK AND AIRCRAFT LANDIED WITHOUT FURTHER INCIDENT. AFTER ENGINE SHUTDOWN PILOT NOTED OIL RUNNING OUT OF ENGINE ON IB SIDE. POST LANDING INSPECTION REVEALED SEPARATED CRACK ABOVE THE NR Feb 10, 2006 · N421RG · Cessna 421C · Reciprocating Engine Power SectionSDR 2006FA0000132Windshield · blew outDURING PRESSURIZED FLIGHT, AT 17000 FEET, THE RT SIDE WINDSHIELD CRACKED AND A MAJOR PORTION BLEW OUT. THE GLARESHIELD IS A ONE PIECE ASSY AND STAYED INTACT; THE RT SIDE REMAINED ATTACHED TO THE INSTRUMENT PANEL WHILE THE FASTENERS ON THE RT SIDE FAILED AND AJan 30, 2006 · Cessna 421C · Flight Compartment WindowsSDR AU510001911Gear · damaged(AUS) ENGINE CRANKSHAFT GEAR MISSING TEETH. SUSPECT CAUSED BY A PIECE OF METAL FROM THE STARTER ADAPTER GEAR JAMMING IN THE GEAR TEETH. METAL CONTAMINATION OF ENGINE. (CASA NR 510001911)Dec 12, 2005 · Cessna 421C · Reciprocating Engine Power SectionSDR 2006FA0000029Distributor Gear · strippedPILOT REPORTED LT ENGINE RUNNING ROUGH. TROUBLESHOT PROBLEM TO LT MAGNETO. FOUND TEETH ON DISTRIBUTOR GEAR IN LT MAGNETO STRIPPED AND NOT TURNING PROPERLY. (GL25200605792) (K)Dec 6, 2005 · N421CQ · Cessna 421C · Magneto/DistributorSDR 2005FA0001556Rod End · failedROD END ON NOSE GEAR ACTUATOR FAILED DURING ROLLOUT CAUSING THE NOSE GEAR TO COLLAPSE. (K)Oct 10, 2005 · N923CP · Cessna 421C · Landing Gear ActuatorSDR 2005FAA09001Alternator · dislodgedTHE ALTERNATOR, OVERHAULED UNIT, WAS IN PIECES WHEN THE AIRCRAFT LANDED. THE BACK HALF OF THE ALTERNATOR WAS OFF, THE STATOR WAS CHEWED UP. THE END BEARINGS WERE IN PLACE AND TURNED LIKE A NEW BEARING WITH GREASE IN THEM.Sep 22, 2005 · N404B · Cessna 421C · DC Generator-AlternatorSDR 2005FA0001314Bellcrank · crackedPILOT SAID PRESSURE REQUIRED TO MOVE RUDDER PEDALS WAS NOT NORMAL ON PREFLIGHT INSPECTION. NOSE GEAR STEERING BELLCRANK WAS CRACKED THROUGH AND BROKEN APART ON THE LT SIDE OF THE CENTER MOUNTING RADIUS. THE RT SIDE OF THIS RADIUS ALSO IS CRACKED.Sep 19, 2005 · N2740B · Cessna 421C · Steering UnitSDR 2005FA0001313Bellcrank · crackedPILOT SAID PRESSURE REQUIRED TO MOVE RUDDER PEDALS WAS NOT NORMAL ON PREFLIGHT INSPECTION. NOSE GEAR STEERING BELLCRANK WAS CRACKED THROUGH AND BROKEN APART ON THE LT SIDE OF THE CENTER MOUNTING RADIUS. THE RT SIDE OF THIS RADIUS ALSO IS CRACKED.Sep 19, 2005 · N2740B · Cessna 421C · Steering UnitSDR 2005FA0001259Adapter · damagedMETAL IN ENGINE. STARTER ADAPTER, CRANK GEAR HAD TEETH MISSING. SB WAS NEVER C/W. (K)Sep 1, 2005 · N617CC · Cessna 421C · Engine StarterSDR 2005FA0001272Crankcase · crackedOPERATOR COMPLAINT OF SMALL OIL LEAKS IN CRUISE FLIGHT. CLEANED ENGINE AND RAN, TO INSPECT FOR OIL LEAKS. AFTER EXTENSIVE VISUAL INSPECTION AND DYE PENETRANT INSPECTIONS (3) CRACKS IN THE CRANKCASE WERE DISCOVERED. (2) CRACKS WERE NOTED EXTENDING FROM TOP FAug 25, 2005 · N711TX · Cessna 421C · Reciprocating Engine Power SectionSDR 2005FA0001250Engine · failedDURING MAINTENANCE CHECK, RUNNING THE RT ENGINE AT 1200 RPM, ENGINE LOST OIL PRESSURE AND SHUT DOWN. THIS IS THE 2ND ENGINE THAT HAS FAILED WITHIN 30 HOURS OF INSTALLATION. BOTH ENGINE HAVE BEEN FROM SAME FACILITY.Aug 5, 2005 · N112AL · Cessna 421C · Engine (Reciprocating)SDR GYW2005F00000Block · destroyedWHILE PERFORMING THE MAGNETO 500 HOUR INSPECTION, BRASS SHAVINGS WERE FOUND INSIDE THE MAGNETO HOUSING. FURTHER INVESTIGATION RVEALED EXCESSIVE (ROCKING) IN DISTRIBUTOR GEAR IN BLOCK CAUSED BY CENTER BEARING BEING LOOSE IN BLOCK. LOOSENESS AND PLAY ALLOWED GJul 28, 2005 · N421WT · Cessna 421C · Magneto/DistributorSDR 2005FA0000251Windshield · failedPITOT HEATED GLASS WINDSHIELD FAILED DURING TAKEOFF ROLL. CAUSE UNKNOWN. WINDSHIELD WAS INSTALLED ABOUT 8 YEARS AND 2004.5 HOURS AGO AND FAILED FOR NO APPARENT REASON. (GL19200502495) (K)Feb 10, 2005 · N316WC · Cessna 421C · Flight Compartment WindowsSDR 2005FA0001249Engine · seizedOIL PRESSURE NEVER CAME UP AFTER PILOT STARTED ENGINE AND ENGINE SEIZED. TIME ON ENGINE: 03.3. ENGINE WAS REMOVED AND ANOTHER ENGINE WAS PROVIDED, UNDER WARRANTY TO TAKE ITS PLACE. PN: GTSIO520L/ SN: 292065RJan 17, 2005 · N112AL · Cessna 421C · Engine (Reciprocating)SDR CA050118005Landing Gear · collapsed(CAN) RT LANDING GEAR COLLAPSED ON LANDING, THIS IS A PRELIMINARY REPORT MORE INFORMATION WILL FOLLOW.Jan 17, 2005 · Cessna 421C · Main Landing Gear Attach SectionSDR 2005FA0000128Crankcase · crackedENGINE CASE CRACK BY NR 3 FORWARD CYLINDER UPPER THROUGH BOLT RADIATING DOWNWARD SEVERAL INCHES. AD ADDRESSES THIS PROBLEM, BUT THESE MODEL NR ENGINE ARE NOT INCLUDED. THIS HAS HAPPENED TO THIS ENGINE ONCE BEFORE, 2 YEARS AGO. (K)Dec 22, 2004 · N885C · Cessna 421C · Reciprocating Engine Power SectionSDR 2004FA0000932Angle · corrodedLEFT WING NACELLE, ANGLE JUST AFT OF FIREWALL EXHIBITED SEVERE CORROSION. CORROSION WAS TRANSFERED TO UPPER WING SKIN AND FUEL CELL.Dec 13, 2004 · N717LR · Cessna 421C · Wing Miscellaneous StructureSDR 2005FA0000092Intake Valve · brokenINTAKE VALVE IN NR 4 CYLINDER FAILED IN FLIGHT. THE VALVE FACE BROKE IN 3 PIECES. THE QUILL SHAFT BROKE AND SHUTDOWN THE ENGINE. THIS IS 3RD ONE SEEN WITH 400-500 HOURS IN SERVICE. (K)Nov 17, 2004 · N111KJ · Cessna 421C · Reciprocating Engine Cylinder SectionSDR 2005FA0000704Main Bearing · delaminatedNR 3 MAIN BEARING APPEARED TO DELAMINATE. ALL THE BRASS OR BRONZE SEPARATED FORM THE BEARING SHELL. THE CRANKSHAFT, NR 3 JOURNAL DOES NOT SHOW SIGNS OF OIL STARVATION. (K)Nov 12, 2004 · N10FF · Cessna 421C · Reciprocating Engine Power SectionSDR 2005FA0000676Dowel Pin · shearedPROPELLER OVERHAULED AND REINSTALLED. TEST FLIGHT REVEALED VIBRATION. DETERMINED TO BE SHEARED DOWEL PINS CAUSING LOOSE PROPELLER TO CRANK PROP DRIVE SHAFT. (K)Nov 10, 2004 · N620ZE · Cessna 421C · Propeller Hub SectionSDR 2005FA0001118Engine · making metalDURING OIL CHANGE (ROUTINE) FOUND BEARING MATERIAL COMING OUT OF SUMP PLUG. PIECES APPROX. .1250-.2500 INCH WIDE, .5 INCH LONG AND VARIOUS SMALLER PIECES. ENGINE WAS OVERHAULED 12/01/03: OWNER COMPLAINED OF VIBRATION FROM START. O/H SAID NORMAL. AFTER ENGSep 30, 2004 · N76MJ · Cessna 421C · Engine (Reciprocating)SDR AIH2004F00000Uplock Hook · brokenPILOT REPORTED LANDING GEAR WOULD NOT STAY RETRACTED. THE GEAR WOULD (SLAM) WHEN UP. THE LANDING GEAR EXTENDED PROPERLY AND AN UNEVENTFUL LANDING WAS MADE. MAINTENANCE PERSONNEL JACKED UP THE AIR CRAFT AND DUPLICATED THE PROBLEM, INSPECTION REVEALED THE RT Sep 7, 2004 · N1007G · Cessna 421C · Landing Gear Retraction/Extension SystemSDR 421C083004Master Cylinder · malfunctionedPILOT REPORTED THAT WHILE PERFORMING A SLOW TIGHT LEFT HAND TURN WHILE TAXIING, THE RIGHT HAND PEDAL APPEARED TO DEPRESS BEYOND ITS NORMAL RANGE, RESULTING IN LESS THAN PROPER STOPPING ABILITY. THE PILOT WAS ABLE TO STOP THE AIRCRAFT WITHOUT INCIDENT. SUBSEQAug 30, 2004 · N321FL · Cessna 421C · Master Cylinder/Brake ValveSDR VA12004F00000Crankshaft · brokenCRANKSHAFT HAD BEEN ULTRASONIC INSPECTED IAW APPLICABLE CSB 99-6A DURING OVERHAUL. RETURNED TO SERVICE AND AFTER 141.1 HOURS, FAILED IN SAME GENERAL OF REQUIRE INSPECTIONS. BROKEN AT NR 3 MAIN JOURNAL TO NR 5 ROD THROW.Aug 2, 2004 · N421GF · Cessna 421C · Reciprocating Engine Power SectionSDR K4S2004F00000Engine · failedON 6/18/04, RT ENGINE FAILED AT CRUISE AT 15,500 FT. ENGINE WAS SECURED AND EMERGENCY LANDING MADE. FLIGHT WAS PART 91 REPOSITIONING WITH NO PASSENGERS OR CARGO. (WP23200408767)Jun 18, 2004 · N747CA · Cessna 421C · Engine (Reciprocating)SDR 2004FA0000632Line · crackedPILOT EXPERIENCED EGT FLUXUATIONS, MADE PRECAUTIONARY LANDING. INSPECTION REVEALED CYLINDER NR 4 INJECTOR LINE WAS CRACKED AND LEAKING FUEL AT THE BASE OF THE BRAZED ON SLEEVE BETWEEN THE SLEEVE AND THE BALL END.Jun 15, 2004 · N421GF · Cessna 421C · Engine Fuel DistributionSDR 421C052404MTExhaust Stack · crackedON THE DAILY INSPECTION, EXHAUST STAINS WERE NOTED ON THE IB SIDE OF THE NR 2 ENGINE COWL. ON FURTHER INSPECTION A CRACK WAS DISCOVERED ON THE EXHAUST STACK AT THE NR 6 RISER. THE 9 INCH CRACK APPEARS TO HAVE STARTED ON THE WELD BETWEEN THE RISER AND STACK OMay 24, 2004 · N27RX · Cessna 421C · Engine Collector/Tailpipe/NozzleSDR 421C032204DGEngine · malfunctionedDURING A ROUTINE PREFLIGHT INSPECTION, PILOT NOTICED PULL THROUGH OF NR 1 ENGINE WAS MORE DIFFICULT THAN NORMAL FOR THAT ENGINE MAKE AND MODEL. A ENGINE START AND RUN-UP WAS PERFORMED TO NORMAL OPERATING TEMPERATURES; WITH NO ABNORMAL CONDITIONS NOTED OTHER TMar 8, 2004 · N321FL · Cessna 421C · Engine (Reciprocating)SDR 2004FA0000203Beam · damagedDURING AN INSPECTION, FOUND A LOT OF LOOSE RIVETS ON THE LT ENGINE BEAM ON THE RT WING. THE DISTANCE BETWEEN SHEET METAL AND THE BEAM-WEBCAPS IS APPROXIMATELY 1.5 TO 2 MM.Feb 19, 2004 · Cessna 421C · Engine Mount SectionSDR 2004FA0000206Spar Cap · corrodedDURING AN INSPECTION FOUND A LOT OF CORROSION IN THE REGION OF RT FIREWALL NACELLE AND THE THE UPPER FWD SPARCAP. BECAUSE OF THIS FACT HE TOOK OUT THE WING LOCKER TANK. IN THIS REGION HE FOUND A LOT OF HEAVY CORROSION.Feb 19, 2004 · Cessna 421C · Nacelle/Pylon, Frame/Spar/RibSDR 6521Beam · crackedDURING VISUAL INSPECTION OF BOTH LT AND RT NACELLE STRUCTURES, CRACKS WERE OBSERVED ON BOTH NACELLE, AFT BEAMS ON THE TOP AND AFT, OB AREAS. FOLLOWING EVALUATION OF THIS STRUCTURE BY THIS INSPECTION CREW AND A LOCAL DER, IT WAS DETERMINED THAT REPAIR OF THIS SFeb 17, 2004 · N3922C · Cessna 421C · Nacelle/Pylon Miscellaneous StructureSDR 2004FA0000297Detector · inoperativeTHIS NEWLY OVERHAULED DETECTOR WAS INSTALLED AND OPS CHECKED AFTER A COUPLE OF CHECKS THE STALL HORN WILL STAY ON. RETURNED UNIT FOR ANOTHER O/HED DETECTOR. THIS ABOUT SECOND AIRCRAFT I WENT THROUGH THIS WITH (ORDERING DETECTORS UNTIL I GET ONE THAT WORKED. Feb 6, 2004 · N421ZM · Cessna 421C · Stall Warning SystemSDR 2004FA0000069Exhaust Riser · damagedWHILE IN IFR FLIGHT, PILOT REPORTED LOSS OF MANIFOLD PRESSURE AND EXHAUST GAS TEMPERATURE INSTRUMENTATION READINGS. HOWEVER MP STABILIZED AT LOWER THAN NORMAL READINGS. MADE PRECAUTIONARY LANDING AT CLOSEST AIRPORT, WHICH MET IFR MINIMUMS. TECH PRESSURE CHEDec 23, 2003 · N485DS · Cessna 421C · Engine Collector/Tailpipe/NozzleSDR SDRO200308Actuator · inoperativeLANDING GEAR LOCKED ON ROLL OUT. AIRCRAFT WAS SHUT DOWN. ON INSPECTION, MECHANIC FOUND SWITCH ON RT GEAR ACTUATOR TO BE INOPERATIVE. REPLACED RT GEAR ACTUATOR WITH SERVICEABLE ACTUATOR. PERFORMED MAINTENANCE REQUIREMENTS. GROUND RAN AIRCRAFT AND APPROVED Dec 5, 2003 · N84GE · Cessna 421C · Landing Gear ActuatorSDR 421C120803Crankcase · crackedAT ROUTINE 50 HOUR OIL CHANGE, MAINTENANCE PERSONNEL NOTICED OIL RT ENGINE CYLINDER BASE. VISUAL INSPECTION INDICATED CRACK BETWEEN NR 1 AND NR 3 CYLINDERS IN CRANKCASE WEB STRUCTURE.Dec 5, 2003 · N321FL · Cessna 421C · Reciprocating Engine Power SectionSDR DYV2003F00003Governor · failedAFTER TAKEOFF THE POWER WAS REDUCED TO CLIMB POWER. AT THE PROPELLER RPM REDUCTION FROM 2235 TO 1900, THE PROPELLER WENT DIRECTLY INTO FEATHER. A SAFE PRECAUTIONARY LANDING. UPON INVESTIGATION ALL ENGINE FUNCTIONS WERE FOUND NORMAL EXCEPT THAT THE POSITION.Dec 1, 2003 · N4119M · Cessna 421C · Propeller Governor
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