# Service difficulty reports: Continental 0-300-D

A list on [Continental 0-300-D](https://openairdocs.org/engine/continental-0-300-d.md).

Newest first. General aviation reporting is voluntary.

Page 1 of 2 · 87 reports

- [SDR 2025FA0000733](https://openairdocs.org/sdr/2025FA0000733.md): Filter Adapter · backed out · Jul 14, 2025 · N3779S · Cessna 172E · Reciprocating Engine Oil System
  > OIL FILTER ADAPTER BECAME LOOSE FROM ACCESSORY CASE CAUSING LOSS OF ENGINE OIL AND SUBSEQUENT ENGINE FAILURE. ADAPTER IS SUBJECT TO AD 96-12-22 AND WAS RECENTLY INSPECTED WITH NO DEFECTS NOTED, HOWEVER AN ENTRY WAS MADE IN THE AIRCRAFT RECORDS THAT THERE WAS A
- [SDR 2023FA0000620](https://openairdocs.org/sdr/2023FA0000620.md): Cylinder · damaged · May 10, 2023 · N2671L · Cessna 172M · Reciprocating Engine Cylinder Section
  > NUMBER 5 CYLINDER EXHAUST VALVE BROKE AT THE VALVE STEAM KEEPER. THE BRAKE WAS A CLEAN BRAKE, PICTURES AVAILABLE ON REQUEST. THE CYLINDER WAS COMPLETELY DESTROYED PISTON BUSTED IN HALF. THE CYLINDER P/N 658319A2BP HAD APPROXIMATELY 35HRS. FROM NEW. CUSTOMER
- [SDR 2022FA0000728](https://openairdocs.org/sdr/2022FA0000728.md): Exhaust Valve · stuck · Nov 23, 2022 · N1637Y · Cessna 172C · Reciprocating Engine Cylinder Section
  > DURING ANNUAL INSPECTION COMPRESSION TEST, NONE FOUND IN #3 CYLINDER. DISASSEMBLED, DETERMINED EXHAUST VALVE STUCK IN GUIDE DUE CARBON BUILD UP. CLEANED VALVE AND GUIDE, RE-ASSEMBLED, RE-INSTALLED, OPERATION SATISFACTORY
- [SDR 2022FA0000007](https://openairdocs.org/sdr/2022FA0000007.md): Yoke · broken · Jan 8, 2022 · N3700S · Cessna 172E · Control Column Section
  > DURING AN INSTRUCTIONAL FLIGHT, WHILE PRACTICING STEEP TURNS, IT WAS NOTICED BY STUDENT AND INSTRUCTOR THAT THEY HAD NO UP ELEVATOR CONTROL BUT DID HAVE DOWN ELEVATOR CONTROL. THE AIRCRAFT RETURNED TO THE FIELD, KAZC AND THE INSTRUCTOR WAS ABLE TO MAKE AN UNEV
- [SDR 2020FA0000108](https://openairdocs.org/sdr/2020FA0000108.md): Fuel Line · chafed · May 21, 2019 · N8716U · Cessna 172F · Aircraft Fuel Distribution System
  > DURING ANNUAL INSPECTION THE MAIN FUEL LINE IN THE COCKPIT BELOW THE COPILOT LEFT RUDDER WAS FOUND TO BE CHAFED BY THE RIGHT STEERING ROD. AS THE STEERING ROD STROKES TO COMMAND RUDDER AND NOSE WHEEL POSITION, THE ROD WEARS AGAINST THE FUEL LINE. OUR LINE WA
- [SDR 2018FA0000120](https://openairdocs.org/sdr/2018FA0000120.md): Windshield · cracked · Feb 23, 2018 · N6014R · Cessna 172G · Flight Compartment Windows
  > ENROUTE AT 4500FT TO KSNA FROM KSEE. APPROXIMATELY 10 NM OUT A CRACK APPEARED ON THE WINDSCREEN JUST ABOVE THE PILOT'S AIR VENT. THE CRACK APPEARED TO BE MOVING FROM LEFT SIDE OF THE WIND SCREEN TO RIGHT SIDE. SLOWED TO 90 KTS AND MONITORED THE CRACK. CLOS
- [SDR 2017FA0000355](https://openairdocs.org/sdr/2017FA0000355.md): Cylinder · failed · Aug 7, 2017 · N8170Q · Cessna 170B · Reciprocating Engine Cylinder Section
  > NUMBER 3 CYLINDER FAILED. IT CAME APART ABOUT 1 1/2 INCHES UP FROM THE BASE. CYLINDER WAS FIRST INSTALLED ON 6-9-1997 AND RECONDITIONED AT 495 HOURS ON 6/2000. IT HAD 1686 HOURS SINCE NEW WHEN IT FAILED 4/2016.
- [SDR 2016FA0000044](https://openairdocs.org/sdr/2016FA0000044.md): Terminal Block · overheated · Oct 23, 2015 · N1896Y · Cessna 172C · AC Inverter
  > FOUND ALTERNATOR OUTPUT CONNECTION ON TERMINAL BLOCK, MS27212-2-4, OVERHEATED. THE IMBEDDED BASE OF THE THREADED POST HAD BECOME COMPLETELY LOOSE FROM THE TERMINAL BLOCK. THERE WAS EVIDENCE OF OVERHEATING IN THE MOLDED MATERIAL AT THIS THREADED POST. IT WAS
- [SDR 2015FA0000410](https://openairdocs.org/sdr/2015FA0000410.md): Clutch · failed · Aug 6, 2015 · N3413D · Cessna 170B · Engine Starter
  > STARTER CLUTCH LOCKED UP AND THEN FAILED. UPON REMOVAL OF THE STARTER ASSEMBLY, THE SMALLER DRIVE GEAR COMPLETELY DISINTEGRATED. THE GEAR PARTS FELL INTO THE ACCESSORY CASE. THE SCREENS SHOWED ALUMINUM CASTING PARTS AND GEAR PARTS. THE ENGINE DID NOT STOP
- [SDR 2014FA0000268](https://openairdocs.org/sdr/2014FA0000268.md): Cylinder Head · cracked · Apr 12, 2014 · N2061Y · Cessna 172D · Reciprocating Engine Cylinder Section
  > NR 2 CYLINDER EXHAUST VALVE STUCK HARD AT FULL LIFT POSITION. REMOVED CYLINDER. FOUND CYLINDER HEAD CRACKED AND WAS BEYOND REPAIR. CYLINDER ASSY HAD 286 HRS OPERATION SINCE LAST REMOVAL AND SERVICE. CYLINDER ASSY HAD 999.6 HRS TT. CYLINDER ASSY WAS REPLA
- [SDR CA121105027](https://openairdocs.org/sdr/CA121105027.md): Elt · no test · Nov 5, 2012 · Cessna 172F · Emergency Locator Beacon
  > (CAN) WHILE PERFORMING THE ANNUAL CERTIFICATION OF THE ELT IAW CAR 571, APPENDIX G. THE PULSE REPITITION RATE OF THE UNIT WAS OK AT THE START OF THE TEST BUT DROPPED BEYOND SPECS BY THE END OF THE 3 MINUTES. ELT REMOVED FROM SERVICE.
- [SDR CA121019005](https://openairdocs.org/sdr/CA121019005.md): U Bolt · sheared · Oct 18, 2012 · Cessna 172F · Main Landing Gear
  > (CAN) DURING A ROUTINE INSPECTION OF MLG, NOTICED THAT MLG "U" BOLT HAD SHEARED AT THE POINT WHERE THE NUT MEETS THE MLG BLOCK.
- [SDR 2012FA0000427](https://openairdocs.org/sdr/2012FA0000427.md): Screen · separated · Jun 2, 2012 · N3860L · Cessna 172G · Fuel Control/Reciprocating Engines
  > 100 HR INSPECTION. SCREEN IS SEPARATED FROM THE FITTING. THE BONDING JOINT FAILED. NEW PN 95-509F, LOT NR 11161106 ASSY INSTALLED. CARBURETOR WAS O/H 9/23/2005 IAW FORM 8130-3.
- [SDR CA110817005](https://openairdocs.org/sdr/CA110817005.md): Control Wheel · broken · Aug 15, 2011 · Cessna 172E · Control Column Section
  > (CAN) DURING STALL PRACTICE, VERY LITTLE AFT PRESSURE APPLIED TO CO-PILOT YOKE (AS PILOT WAS ALREADY APPLYING MOST OF THE PRESSURE), AND IT SNAPPED OFF. UPON RETURN FROM FLIGHT, TECH ON GROUND WAS ABLE TO SNAP BROKEN PIECE AGAIN WITH LITTLE FORCE. COPILOT C
- [SDR CA100602004](https://openairdocs.org/sdr/CA100602004.md): Elt · failed · Jun 2, 2010 · Cessna 172C · Emergency Locator Beacon
  > WHEN TESTING ELT IAW CAR 571, APPENDIX G, THERE WAS NO TRANSMITTED POWER AND NO AUDIO MODULATION. ELT UNIT REPLACED WITH A SERVICEABLE UNIT.
- [SDR 2010FA0000231](https://openairdocs.org/sdr/2010FA0000231.md): Spinner · cracked · Mar 16, 2010 · N3627L · Cessna 172G · Propeller Spinner Section
  > WHILE INSPECTING THE FWD PROP SPINNER BULKHEAD, CRACKS WERE FOUND. LOOKING FURTHER IT WAS NOTICED THE CTR HOLE IN THE SPINNER DID NOT LINE UP WITH THE CTR OF THE PROP. AFTER REMOVING THE PROP, IT WAS FOUND THE EDGE DISTANCE FROM THE 6 BOLT HOLES TO THE CTR O
- [SDR 2009FA0000937](https://openairdocs.org/sdr/2009FA0000937.md): Yoke · broken · Aug 22, 2009 · N8819U · Cessna 172F · Elevator Control System
  > ACFT EXPERIENCED A TOTAL SEPARATION OF THE WELD ASSY- YOLK (PN 0511782-16) APPROX 3 INCHES ABOVE THE ELEVATOR CONTROL ROD ATTACH POINT AT THE LOWER BEARING (PN AN200KS4). THIS SEPARATION RESULTED IN A TOTAL LOSS OF ELEVATOR CONTROL. THIS POTNETIALLY CATASTRO
- [SDR CA090512007](https://openairdocs.org/sdr/CA090512007.md): Hinge Bracket · cracked · Apr 3, 2009 · Cessna 172H · Rudder Structure
  > (CAN) DURING A ROUTINE INSP THERE WAS SOME PLAY FOUND IN RUDDER HINGES AND AFTER A CLEANING AND CLOSE VISUAL INSP THERE WAS A CRACK OBSERVED IN THE LWR HINGE BRACKETS BOTH THE UPPER AND LOWER BRACKETS PN 0531018-1 AND 0531018-2. THE BRACKETS WERE REPLACED AND
- [SDR 2008FA0000852](https://openairdocs.org/sdr/2008FA0000852.md): Oil Filter · ruptured · Nov 29, 2008 · N7830T · Cessna 172A · Reciprocating Engine Oil System
  > ON 11/26/2008, APPROXIMATELY 1 MINUTE AFTER START-UP THE OIL FILTER RUPTURED RESULTING IN MASSIVE LOSS OF ENGINE OIL. THE OIL FILTER WAS THE LAST OF FOUR THAT WERE PURCHASED ON 10/05/2006. THE ENGINE WAS SHUT DOWN UPON NOTICE OF LOW OIL PRESSURE AND HAS BEEN
- [SDR 2008FA0000635](https://openairdocs.org/sdr/2008FA0000635.md): Engine · power loss · Aug 24, 2008 · N8546U · Cessna 172F · Engine (Reciprocating)
  > AC WAS NOT OPERATING UNDER PART 135, IT WAS UNDER PART 91 FLIGHT WHEN INCIDENT OCCURRED. PILOT STATEMENT "ENROUTE, AS WE CRESTED THE MOUNTAINS, THE ENGINE STARTED SPUTTERING, AND RPMS WERE DROPPING. APPLIED CARB HEAT, TRIED SWITCHING BETWEEN FUEL TANKS, MAGNET
- [SDR 2008FA0000371](https://openairdocs.org/sdr/2008FA0000371.md): Engine · vapor lock · May 10, 2008 · N172BX · Cessna 172G · Engine (Reciprocating)
  > AC WAS BEING FLOWN ON RT FUEL TANK. AFTER RUNNING TANK DRY, PILOT SELECTED RT FUEL TANK AND MOMENTS LATER THE ENG STOPPED PRODUCING POWER AND MADE AN EMERGENCY LANDING. AC FUEL SYS WAS INSPECTED FOR CONTAMINATES AND FAILURES, NONE WERE FOUND. POSSIBLE CAUSE I
- [SDR CA080121006](https://openairdocs.org/sdr/CA080121006.md): Cap · cracked · Dec 18, 2007 · Cessna 172D · Nose/Tail Landing Gear Strut/Axle
  > (CAN) DURING ANNUAL INSP OF THE NOSE GEAR ASSY AND OLEO, THE OLEO CAP WAS FOUND TO BE CRACKED. THE CRACK WAS LOCATED.1875 IN FROM THE RADIUS OF THE END FLANGE. THE CAP WAS FOUND TO BE BROKEN THROUGH AND WAS REMOVED IN 2 PIECES. REVIEW OF THE TECHNICAL RECORDS
- [SDR 2007FA0000818](https://openairdocs.org/sdr/2007FA0000818.md): Rocker · misinstalled · Sep 19, 2007 · N4960R · Cessna 172H · Reciprocating Engine Cylinder Section
  > ROCKER COVERS REMOVED DURING 100 HOUR INSPECTION TO INSPECT INTAKE AND EXHAUST ROCKERS FOR CORRECT INSTALLATION. FOUND NR1 AND NR6 CYLINDERS HAD INTAKE ROCKER (P/N 639614) INSTALLED IN THE EXHAUST VALVE POSITION. PARTS MANUAL CALLS FOR P/N 639615 ROCKER TO BE
- [SDR 2007FA0000592](https://openairdocs.org/sdr/2007FA0000592.md): Cylinder · separated · Jul 3, 2007 · N5436T · Cessna 172E · Reciprocating Engine Cylinder Section
  > CYLINDER BARREL SEPARATED APPROXIMATELY 2 NR ABOVE THE CYLINDER BASE FLANGE.
- [SDR 2007FA0000186](https://openairdocs.org/sdr/2007FA0000186.md): Bushing · loose · Feb 22, 2007 · N2948U · Cessna 172D · Magneto/Distributor
  > BRONZE BUSHING, VERY LOOSE IN DISTRIBUTOR BLOCK AND DISTRIBUTOR ARM WAS CONTACTING PINS IN BLOCK. MAG WOULD NOT OPERATE CORRECTLY. (K)
- [SDR 2007FA0000210](https://openairdocs.org/sdr/2007FA0000210.md): Rocker · incorrect · Feb 20, 2007 · N8848Z · Cessna 172H · Reciprocating Engine Cylinder Section
  > PILOT REPORTED LOSS OF POWER (600 RPM DROP) SIGNIFICANT ENGINE ROUGHNESS DURING CLIMB. ENGINE RECOVERED SHORTLY AFTERWARDS. PILOT ELECTED TO CONTINUE AND HAD SAME PROBLEM AGAIN DURING CRUISE FLIGHT. ENGINE RECOVERED ON ITS OWN ONCE AGAIN. PILOT SAID CARB HEAT
- [SDR 2006FA0000499](https://openairdocs.org/sdr/2006FA0000499.md): Cylinder · cracked · Apr 11, 2006 · N2566Y · Cessna 172D · Reciprocating Engine Cylinder Section
  > NR 1 CYLINDER WAS REMOVED DUE TO A CRACK.75 AROUND STEEL BARREL. IT APPEARS THAT AN OIL CONTROL RING BROKE AND EVENTUALLY DESTROYED THE PISTON AND JAMMED BETWEEN THE PISTON AND CYLINDER. TT ON THE ENGINE IS 4156.9 HRS. SMOH IS 1432.9 HRS, THE CYLINDER WAS
- [SDR 2007FA0000212](https://openairdocs.org/sdr/2007FA0000212.md): Sump · leaking · Dec 21, 2005 · N8848Z · Cessna 172H · Reciprocating Engine Rear Section
  > DURING NEWLY OVERHAULED ENGINE INSTALLATION AN OIL LEAK WAS DISCOVERED. WHEN BREAK-IN OIL WAS ADDED TO OIL SUMP FOR INITIAL ENGINE RUN, OIL WAS OBSERVED LEAKING ONTO NOSE TIRE. FURTHER EXAMINATION REVEALED OIL LEAK WAS ORIGINATING FROM LEFT REAR OF ENGINE WH
- [SDR RTE2006F00001](https://openairdocs.org/sdr/RTE2006F00001.md): Bulkhead · cracked · Dec 15, 2005 · N8292X · Cessna 172C · Propeller Spinner Section
  > DURING ROUTINE SCHEDULED INSPECTION, FOUND FWD PROP SPINNER BULKHEAD CRACKED NEAR THE BOLT HOLES. NO APPARENT REASON COULD BE DETERMINED. THE PROP BOLTS WERE CORRECTLY TORQUED. THE PROP WAS CORRECTLY CLOCKED. GROUND AND FLIGHT CHECKS SHOWED NO ABNORMAL VIB
- [SDR CA051221007](https://openairdocs.org/sdr/CA051221007.md): Spar · cracked · Nov 23, 2005 · Cessna 172E · Horizontal Stabilizer, Spar/Rib
  > THE STABILIZER FORWARD SPAR WAS CRACKED AND BUCKLED AT THE CENTER LIGHTENING HOLE. THERE WERE 2 SMALL CRACKS RADIATING OUTWARD. STABILIZER WAS REPAIRED AS PER CESSNA SEB94-8.
- [SDR 2005FA0001316](https://openairdocs.org/sdr/2005FA0001316.md): Cylinder · broken · Sep 21, 2005 · Reciprocating Engine Cylinder Section
  > ENGINE CYLINDER NR 6, CRACKED CIRCUMFERENTIALLY AND FULLY SEPARATED BETWEEN THE 12TH AND 13TH COOLING FINS AS COUNTED FROM THE BASE OF THE CYLINDER CAUSING A COMPLETE LOSS OF ENGINE POWER.
- [SDR CA050630001](https://openairdocs.org/sdr/CA050630001.md): Bearing · mismanufactured · Jun 13, 2005 · Cessna 172A · Engine Starter
  > (CAN) STARTER ADAPTER DISASSEMBLED FOR OVERHAUL. SHAFT GEAR REMOVED FROM BEARING WHEN NEEDLES FELL OUT, SUSPECT POSSIBLE UNAPPROVED PART. ENGINE HAD JUST BEEN INSPECTED. QUALITY AND WORKMANSHIP MADE ENGINE NON-AIRWORTHY IAW FINDING.
- [SDR 2005FA0000366](https://openairdocs.org/sdr/2005FA0000366.md): Spar · cracked · Feb 1, 2005 · N5134F · Cessna 172F · Wing Spar
  > DURING A BORESCOPE INSPECTION, A CRACK WAS FOUND IN THE RT REAR SPAR AT THE IB FLAP TRACK ATTACH POINT. PROBABLE CAUSE IS FATIGUE. THIS IS A VERY HIGH TIME, AC WITH OVER 13, 000 HOURS TT. IT HAS ALSO BEEN USED AS A FLIGHT TRAINER FOR ITS ENTIRE LIFE. (K)
- [SDR 2005FA0000387](https://openairdocs.org/sdr/2005FA0000387.md): Spar · cracked · Feb 1, 2005 · N4974R · Cessna 172H · Wing Spar
  > DURING A BORESCOPE INSPECTION OF THE REAR WING SPAR, A CRACK WAS FOUND AT THE IB FLAP TRACK ATTACH POINT. PROBABLE CAUSE IS FATIGUE. THIS IS A VERY HIGH TIME AC WITH OVER 13,000 HOURS TT. IT HAS ALSO BEEN USED AS A FLIGHT TRAINER FOR ITS ENTIRE LIFE. (K)
- [SDR 2005FA0000198](https://openairdocs.org/sdr/2005FA0000198.md): Spar · cracked · Jan 31, 2005 · N4992R · Cessna 172H · Trailing Edge Flaps
  > WHILE REPLACING THE FLAP TRACK ASSY, A CRACK APPROX 2 INCHES IN LENGTH AND RUNNING THROUGH THE LOWER RIVET HOLES WAS FOUND UNDER THE IB FLAP TRACK. PROBABLE CAUSE IS FATIGUE. RECOMMEND THESE AC WITH MORE THAT 8,000 HOURS TT BE INSPECTED BY BORESCOPE OR OTHER
- [SDR 2005FA0000385](https://openairdocs.org/sdr/2005FA0000385.md): Flap Track · worn · Jan 31, 2005 · N4989R · Cessna 172H · Trailing Edge Flaps
  > WHILE FLAPS WERE BEING RETRACTED, THE LT IB FLAP ATTACH BRACKET CAUGHT ON THE WING COVE PANEL SUPPORT. THIS CAUSED SUBSTANTIAL DAMAGE TO THE COVE PANEL SUPPORT AS WELL AS THE ATTACH BRACKET. CAUSE WAS DETERMINED TO BE WORN FLAP TRACKS. THE FLAP TRACKS AND R
- [SDR 2005FA0000386](https://openairdocs.org/sdr/2005FA0000386.md): Flap Track · worn · Jan 31, 2005 · N4992R · Cessna 172H · Trailing Edge Flaps
  > DURING PREFLIGHT, THE LT OB FLAP TRACK WAS NOTICED TO HAVE DAMAGE. AIRCRAFT WAS IMMEDIATELY GROUNDED AND THE FLAP TRACKS AND ROLLERS WERE REPLACED WITH NEW PARTS. NO FURTHER DAMAGE HAD OCCURRED TO THE FLAP ASSY. SINCE MFG DOES NOT HAVE LIMITATIONS ON THEIR
- [SDR 2005FA0000388](https://openairdocs.org/sdr/2005FA0000388.md): Spar · cracked · Jan 31, 2005 · N4989R · Cessna 172H · Wing Spar
  > WHILE CHANGING THE FLAP TRACKS ON THE LT WING 2 SMALL CRACKS,.2500 INCH LONG, EACH WERE NOTICED ON THE IB AFT WING SPAR AT THE IB FLAP TRACK ATTACH POINT. PROBABLE CAUSE IS FATIGUE. THIS IS A VERY HIGH TIME AIRCRAFT WITH OVER 12,000 HOURS TT. IT HAS ALSO B
- [SDR 2005FA0000389](https://openairdocs.org/sdr/2005FA0000389.md): Spar · cracked · Jan 31, 2005 · N4989R · Cessna 172H · Wing Spar
  > DURING A BORESCOPE INSPECTION, A CRACK WAS FOUND IN THE RT REAR SPAR AT THE IB FLAP TRACK ATTACH POINT. PROBABLE CAUSE IS FATIGUE. THIS IS A VERY HIGH TIME AIRCRAFT WITH OVER 12,000 HOURS TT. IT HAS ALSO BEEN USED AS A FLIGHT TRAINER FOR ITS ENTIRE LIFE. (K
- [SDR CA040819001](https://openairdocs.org/sdr/CA040819001.md): Carburetor · failed · Jun 10, 2004 · Cessna 172H · Fuel Control/Reciprocating Engines
  > (CAN) ENGINE REPORTED RUNNING INTERMITTENTLY. MIXTURE OPERATES ONLY THROUGH LIMITED RANGE. INSPECTION REVEALS LARGE MOUSE NEST IN AIR BOX AND CARBURETOR AS FAR AS VENTURI. SEVEN DEAD INFANT MICE FOUND IN NEST. ENTRY TO CARB THROUGH CABIN HEATER DUCTING. AIR
- [SDR 2004FA0000671](https://openairdocs.org/sdr/2004FA0000671.md): Crankshaft · making metal · Mar 11, 2004 · Reciprocating Engine Power Section
  > ENGINE WAS DISASSEMBLED AND INSPECTED. INSP REVEALED METAL CONTAM OF CRANKSHAFT MAIN, CONNECT ROD BRG INSERTS. ENGINE WAS REASSEMBLE WITH NEW BRG INSERTS AND REPLACEMENT STARTER ADAPTER, WHICH WAS DISASSEMBLED AND INSP BEFORE INSTALLATION ON ENGINE. DISCREP
- [SDR 2004FA0000292](https://openairdocs.org/sdr/2004FA0000292.md): Retainer · failed · Mar 5, 2004 · N2650U · Cessna 172D · Reciprocating Engine Cylinder Section
  > FOUND UPPER VALVE RETAINER ABOUT 09 PERCENT WORN THROUGH BY OUTER SPRING (PN 625958) BUT HAD NOT FAILED YET. PN 24077 UPPER VALVE SPRING RETAINER.
- [SDR 2004FA0000293](https://openairdocs.org/sdr/2004FA0000293.md): Retainer · worn · Mar 5, 2004 · N2650U · Cessna 172D · Reciprocating Engine Cylinder Section
  > FOUND PN 24077, UPPER VALVE SPRING RETAINER WORN OUT ALLOWING VALVE SPRING TO BYPASS IT. CAUSED LOSS OF STATIC RPM AND SOME ROUGHNESS OCCASIONALLY.
- [SDR 2003FA0001140](https://openairdocs.org/sdr/2003FA0001140.md): Bracket · broken · Oct 6, 2003 · N61LV · Cessna 172G · Elevator Structure
  > BADLY BROKEN BRACKET WAS HELD IN PLACE BY ONLY TWO RIVETS. TOTAL LOSS OF ELEVATOR WOULD HAVE BEEN FORTHCOMING HAD BRACKET NOT BEEN REPLACED. THIS WAS DIFFICULT TO DETECT BECAUSE CONTROL FUNCTION WAS NORMAL AND IS DIFFICULT TO VIEW (BEING BELOW THE FLOOR). I
- [SDR 2003FA0000929](https://openairdocs.org/sdr/2003FA0000929.md): Cam · cracked · Sep 13, 2003 · N4960R · Magneto/Distributor
  > DURING ANNUAL INSPECTION MAGNETO WAS REMOVED FOR 500 HR INSPECTION. FOUND MAGNETO CAM PART NR 10-88543-1 TO BE CRACKED AND UNSERVICEABLE. MAGNETO WAS FUNCTIONING NORMALY DURING ENGINE RUN UP PRIOR TO ANNUAL INSPECTION. CRACK WAS NOT VISIBLE UNTILL THE MAGNE
- [SDR 2003FA0000207](https://openairdocs.org/sdr/2003FA0000207.md): Alternator · inoperative · Feb 17, 2003 · N3941R · Cessna 172H · DC Generator-Alternator
  > FAILURE OF THE SHAFT ON AN OVERHAULED ALTERNATOR. THE PILOT REPORTED AN AMMETER DISCHARGED WHILE CONDUCTING A PART 61 INSTRUCTIONAL FLIGHT. A PRECAUTIONARY LANDING WAS MADE AT THE NEAREST AIRPORT. INSPECTION OF THE ELECTRICAL SYSTEM INDICATED A FRACTURE OF
- [SDR CA020102003](https://openairdocs.org/sdr/CA020102003.md): Spar · cracked · Nov 20, 2001 · Cessna 172B · Horizontal Stabilizer Structure
  > (CAN) AT ANNUAL INSPECTION THE CENTRE SECTION OF THE STABILIZER SPAR WAS FOUND TO BE BUCKLED AND CRACKED AT THE CENTRE LIGHTENING HOLE, WHERE THE TRIM CABLES RUN THROUGH. THERE WERE TWO CRACKS ABOUT 2 IN. LONG, RUNNING FROM THE BOTTOM RIGHT AND TOP LEFT SIDES
- [SDR CA010727034](https://openairdocs.org/sdr/CA010727034.md): Rheostat · failed · Jul 19, 2001 · Cessna 172D · Flight Compartment Lighting
  > (CAN) WHILE PERFORMING THE ANNUAL INSPECTION OF THE ELCTRICAL SYSTEM THE RHEOSTAT BEGAN SMOKING.
- [SDR 2001FA0000139](https://openairdocs.org/sdr/2001FA0000139.md): Piston · cracked · Jul 9, 2001 · N2051Y · Cessna 172D · Main Landing Gear Strut/Axle/Truck
  > DURING REPAIRS TO CYCL NR 4 FOR LOW COMPRESSION FOUND 1INCH CRACK IN PISTON SKIRT STARTING AT BOTTOM OF PISTON.
- [SDR 20010503CW004](https://openairdocs.org/sdr/20010503CW004.md): Door Frame · misinstalled · Apr 4, 2001 · N3658S · Cessna 172E · Fuselage Main, Structure
  > FUEL LINES RUBBING AND STRESSED DUE TO UPPER OUTBOARD DOOR FRAME PARTIALLY COVERING HOLE AND NOT ALLOWING CLEARANCE FOR FUEL LINE. CAUSE BY HOLE IN UPPER OB DOOR FRAMES NOT BEING CUT OUT TO ORIGINAL SIZE FOR CLEARANCE BY MFG. RECOMMENDATION IS TO ROUND OUT H

Next page: https://openairdocs.org/engine/continental-0-300-d/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 engine_model_key = 'O300D'
ORDER BY difficulty_date DESC
```

This list as a web page: https://openairdocs.org/engine/continental-0-300-d/reports

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