# Service difficulty reports: Cessna 172P A list on [Cessna 172P](https://openairdocs.org/model/cessna-172p.md). Newest first. General aviation reporting is voluntary. Page 1 of 8 · 375 reports - [SDR 2026FA0000681](https://openairdocs.org/sdr/2026FA0000681.md): Gascolator · dirty · Sep 3, 2026 · N172UZ · Cessna 172P · Engine (Reciprocating) > PILOT REPORTED LOW POWER AND VIBRATION ON TAKEOFF AND ABORTED TAKEOFF. CLEANED GASCOLATOR AND AGGRESSIVELY FUEL TANKS AND BELLY SUMPS. NO WATER WAS PRESENT. VERIFIED PROPELLER TORQUE AND CHECKED DYNAMIC BALANCE DUE TO A RECENT PROPELLER INSTALLATION. PROPELLER - [SDR 2026FA0000268](https://openairdocs.org/sdr/2026FA0000268.md): Stiffener · sheared · Apr 14, 2026 · N211AV · Cessna 172P · Trailing Edge Flaps > FLAP TRACK STIFFENERS THAT KEEP THE FLAP TRACKS STRAIGHT AND TRUE WERE FOUND TO BE SHEARED OFF ON THE INBOARD TRACK OF THE RH FLAP - [SDR 2025FA0000633](https://openairdocs.org/sdr/2025FA0000633.md): Cylinder Head · cracked · Sep 9, 2025 · N99040 · Cessna 172P · Reciprocating Engine Cylinder Section > NR 4 CYLINDER HEAD CRACKED ACROSS COOLING FINS IN FLIGHT. CREW NOTICED LOSS OF POWER/SHUDDER. - [SDR 8HBR20240909067](https://openairdocs.org/sdr/8HBR20240909067.md): Gear · damaged · Aug 7, 2024 · N90558 · Cessna 172P · Magneto/Distributor > CAM GEAR WAS IMPROPERLY INSTALLED/SEATED DURING INITIAL MANUFACTURING WHICH CAUSED EXCESSIVE WEAR AND DAMAGE TO THE CAM GEAR DURING ROTATION AGAINST THE DISTRIBUTOR GEAR. THIS WAS THE FIRST 500HR INSPECTION SINCE MANUFACTURE. - [SDR 2024FA0000249](https://openairdocs.org/sdr/2024FA0000249.md): Display · abnormal · Mar 21, 2024 · N63681 · Cessna 172P · Communications System > DISPLAY LIGHTS UNREADABLE. - [SDR 2024FA0000246](https://openairdocs.org/sdr/2024FA0000246.md): Cable · broken · Mar 21, 2024 · N24155 · Cessna 172P · Trailing Edge Flap Control System > FLAPS FAILURE ON FINAL. LOOKED TO THE FLAPS AND SAW RIGHT FLAP FULL DOWN WITH LEFT FLAP FULL UP. RAISED THE FLAP LEVER TO 0 AND RIGHT FLAP WENT FULL UP. LANDED WITH NO FLAPS. - [SDR 2024FA0000245](https://openairdocs.org/sdr/2024FA0000245.md): Elt · inoperative · Mar 21, 2024 · N63681 · Cessna 172P · Emergency Locator Beacon > ELT FOUND INOPERATIVE DURING INSPECTION. - [SDR 2024FA0000242](https://openairdocs.org/sdr/2024FA0000242.md): Control Module · inoperative · Mar 21, 2024 · N24155 · Cessna 172P · DC Generator-Alternator > AMMETER SHOWING DISCHARGE, NO VOLTAGE TO FIELD. - [SDR 2024FA0000217](https://openairdocs.org/sdr/2024FA0000217.md): Tube · leaking · Mar 13, 2024 · N51178 · Cessna 172P · Tire Tube > UNKNOWN, TIRE LOST AIR FOR UNKNOWN REASONS. - [SDR 2026FA0000359](https://openairdocs.org/sdr/2026FA0000359.md): Stiffener · sheared · Feb 10, 2024 · N19NJ · Cessna 172P · Trailing Edge Flaps > FLAP TRACK STIFFENERS THAT KEEP THE FLAP TRACKS STRAIGHT AND TRUE WERE FOUND TO BE SHEARED OFF AND/OR CRACKED - [SDR 2024FA0000076](https://openairdocs.org/sdr/2024FA0000076.md): Fuel Tank · cracked · Jan 26, 2024 · N5399K · Cessna 172P · Fuel Storage > RIGHT FUEL TANK, 5" CRACK ALONG THE REAR OF THE FUEL FILLER NECK ATTACHMENT WELD - [SDR 2024FA0000075](https://openairdocs.org/sdr/2024FA0000075.md): Fuel Tank · cracked · Jan 18, 2024 · N96180 · Cessna 172P · Fuel Storage > RIGHT FUEL TANK, 6" CRACK ALONG REAR OF FILLER NECK ATTACHMENT WELD - [SDR 2023FA0000246](https://openairdocs.org/sdr/2023FA0000246.md): Crankcase · unknown · May 3, 2023 · N65497 · Cessna 172P · Engine (Reciprocating) > ON AUGUST 23, 2022 AN ENGINE EXAMINATION WAS CONDUCTED AT AIR SALVAGE OF DALLAS UNDER FAA OVERSIGHT. A GVI ON THE NUMBER 1 CYLINDER FOUND 4 SMALLER DIAMETER STUDS AND 1 LARGER DIAMETER STUD FRACTURED. THESE DECK STUD BOLTS EXHIBITED FATIGUE FAILURE/INDUCTILE O - [SDR 8HBR20211116037](https://openairdocs.org/sdr/8HBR20211116037.md): None · cracked · Nov 10, 2021 · N54477 · Cessna 172P · Propeller Spinner Section > DURING PRE-FLIGHT, PILOT FOUND THE SURROUNDING AREA OF ONE OF THE AFT SPINNER BULKHEAD NUTPLATES CRACKED AND SEPARATED FROM BULKHEAD. - [SDR 2021FA0000050](https://openairdocs.org/sdr/2021FA0000050.md): Lock Tab · loose · Jan 20, 2021 · N6519 · Cessna 172P · Fuel Control/Reciprocating Engines > FOUND LOOSE CARBURETOR LOCK TAB AND FUEL STAIN. NO OPERATIONAL ABNORMALITY WAS NOTED RELATIVE TO THE DISCREPANCY. CARB WAS CHANGED INSTEAD OF REPAIR FOR CONVENIENCE. - [SDR 2020FA0000440](https://openairdocs.org/sdr/2020FA0000440.md): Cylinder · cracked · Oct 2, 2020 · N27GF · Cessna 172P · Reciprocating Engine Cylinder Section > NUMBER ONE CYLINDER BARREL SEPARATION. - [SDR 8HBR20200629023](https://openairdocs.org/sdr/8HBR20200629023.md): Flapper Valve · failed · Jun 27, 2020 · N65259 · Cessna 172P · Engine Air Intake System > CARBURETOR HEAT FLAPPER VALVE MATERIAL FAILURE. A PIECE OF THE CARB HEAT FLAPPER VALVE MATERIAL SEPARATED FROM THE VALVE ASSEMBLY AND GOT STUCK IN THE THROTTLE BODY OF THE CARBURETOR, CAUSING SIGNIFICANT DEGRADATION OF THE ENGINE'S PERFORMANCE. - [SDR BQVD2020042400000](https://openairdocs.org/sdr/BQVD2020042400000.md): Exhaust Valve · stuck · Apr 20, 2020 · N65628 · Cessna 172P · Reciprocating Engine Cylinder Section > TACH TIME: 7661.5 POST FLIGHT INSPECTION OF COWL, OIL LEAK DISCOVERED. MAINTENANCE INVESTIGATED AND DISCOVERED #2 CYLINDER EXHAUST VALVE PUSHROD TUBE BROKEN IN TWO PIECES AND PUSHROD BENT. CYLINDER WAS REMOVED. EXHAUST VALVE WAS FOUND TO BE STUCK AND HAD MA - [SDR CA190429020](https://openairdocs.org/sdr/CA190429020.md): Shutoff Valve · contaminated · Apr 25, 2019 · Cessna 172P · Fuel Selector/Shut-Off Valve > (CAN) ON A TRAINING FLIGHT IT WAS REPORTED THAT ON THE TAKE-OFF ROLL THE ENGINE QUIT AND THE AIRCRAFT WAS ABLE TO COAST OFF THE RUNWAY TO A TAXIWAY. THE AIRCRAFT WAS RE-STARTED AND TAXIED BACK TO THE HANGAR. MAINTENANCE DID A THOROUGH RUN-UP ON THE AIRCRAFT AN - [SDR CA180116016](https://openairdocs.org/sdr/CA180116016.md): Valve Seat · worn · Jan 12, 2018 · Cessna 172P · Reciprocating Engine Cylinder Section > (CAN) DURING HOT CYLINDER COMPRESSION TEST OF ENGINE FOUND NR 3 CYLINDER TO HAVE 0 COMPRESSION. DURING TROUBLESHOOTING, FOUND EXHAUST VALVE TRAIN TO HAVE ZERO CLEARANCE BETWEEN ROCKER ARM AND VALVE STEM AT TOP DEAD CENTER. REMOVED CYLINDER TO INSPECT AND FOU - [SDR 2017FA0000503](https://openairdocs.org/sdr/2017FA0000503.md): O-Ring · worn · Sep 11, 2017 · N52364 · Cessna 172P · Master Cylinder/Brake Valve > AIRCRAFT EXPERIENCED LOSS OF LT BRAKES DURING TAXI TO RUNWAY. PILOT WAS ABLE TO STOP WITH OTHER BRAKE AND ELECTED TO HAVE AIRCRAFT TOWED TO PARKING. NO PRESSURE WAS EXPERIENCED WITH OPERATION OF BRAKE. REMOVED MASTER CYLINDER AND FOUND AN O-RING WAS WORN FLAT - [SDR 8HBR20170710005](https://openairdocs.org/sdr/8HBR20170710005.md): Cylinder · cracked · Jul 7, 2017 · N65259 · Cessna 172P · Reciprocating Engine Cylinder Section > PILOT REPORTED ROUGH RUNNING ENGINE. THE NR 1 CYLINDER WAS FOUND CRACKED FOUR INCHES ACROSS THE INTAKE VALVE. - [SDR 2017FA0000181](https://openairdocs.org/sdr/2017FA0000181.md): Wire Harness · defective · May 9, 2017 · N64875 · Cessna 172P · Ignition Harness (Distribution) > BAD MAG DROP. UNABLE TO BURN OFF. LOSS OF RPM ON TAKEOFF ROLL. DECIDED TO REPLACE IGNITION HARNESS BY PROCESS OF ELIMINATION. REPLACEMENT CORRECTED THE ISSUE. - [SDR BQVD201703270001](https://openairdocs.org/sdr/BQVD201703270001.md): Switch · failed · Mar 21, 2017 · N64281 · Cessna 172P · Exterior Lighting > LANDING LIGHT SWITCH STUCK IN ON POSITION. SUSPECT INTERNAL ARCING & WELDING OF CONTACTS. THE OVERHEATING CAUSED BY THE ARCING CAN CAUSE THE SWITCH BODY TO MELT, BUT DID NOT IN THIS CASE. NO SIGNS OF HEAT DAMAGE OF EXTERNAL SWITCH SURFACE WERE FOUND. - [SDR 2017FA0000027](https://openairdocs.org/sdr/2017FA0000027.md): Computer · overheated · Jan 23, 2017 · N5496K · Cessna 172P · Cabin Equipment/Furnishings > PILOT EXPERIENCED SMOKE IN THE COCKPIT. PILOT DETECTED AN ELECTRICAL BURNING ODOR AND SMOKE ORIGINATING FROM THE CAMERA SYSTEM COMPUTER AND OPENED THE WINDOWS TO VENTILATE THE CABIN. PILOT DISENGAGED THE RELATED SYSTEM CIRCUIT BREAKER. INITIATED A PRECAUTIO - [SDR BQVD0201701040001](https://openairdocs.org/sdr/BQVD0201701040001.md): Switch · melted · Jan 2, 2017 · N98795 · Cessna 172P · Exterior Lighting > PILOT SMELLED & SAW SMOKE. AIRCRAFT LANDED. MAINTENANCE DISCOVERED PARTIAL MELTED LANDING LIGHT SWITCH. - [SDR 2016FA0000394](https://openairdocs.org/sdr/2016FA0000394.md): Battery Pack · exploded · Jul 26, 2016 · Cessna 172P · Emergency Locator Beacon > ONE OF OUR AIRCRAFT WAS INSTALLED WITH ELT, MODEL AK-451 ON OCTOBER 2010. ON MARCH 15, 2016 WE REPLACED THE BATTERY. ON JULY 26, 2016 AIRCRAFT FLEW FOR TRAINING UNTIL 14:00 HOURS LOCAL TIME, AIRCRAFT WAS PARKED AND A TRAINEE AND PILOT INSTRUCTOR LEFT THE AIR - [SDR CA151119011](https://openairdocs.org/sdr/CA151119011.md): Axle · cracked · Nov 18, 2015 · Cessna 172P · Main Landing Gear Strut/Axle/Truck > (CAN) WHILE DOING A ROUTINE TIRE REPLACEMENT, UPON REMOVAL OF THE TIRE ASSY FROM THE LT AXLE, THE AXLE WAS CLEANED AND INSPECTION REVEALED WHAT LOOKED LIKE A CRACK OR INCLUSION ON THE AXLE AT THE END OPPOSITE WHERE THE COTTER PIN/NUT SECURE THE WHEEL ASSY. IT - [SDR CA151109007](https://openairdocs.org/sdr/CA151109007.md): Rib · cracked · Nov 6, 2015 · Cessna 172P · Rudder Structure > (CAN) DURING ROUTINE MAINTENANCE, UPON INSPECTION AT 100 HR INSPECTION IT WAS FOUND THAT THE BULKHEAD ASSY, PN 0513363-23, TUNNEL LT RIB WAS CRACKED WHERE THE RUDDER BEARING ASSY FOR THE RUDDER PEDAL TORQUE TUBES ATTACHES. THE CRACK WAS LESS THAN.5" BY THE B - [SDR 2015FA0000461](https://openairdocs.org/sdr/2015FA0000461.md): Carburetor · loose · Sep 23, 2015 · N65191 · Cessna 172P · Fuel Control/Reciprocating Engines > FOUR SCREWS ON THE CARBURETOR CAME LOOSE, CAUSING THE ENGINE TO RUN ROUGH AND THE PILOT MADE AN EMERGENCY LANDING, WHICH RESULTED IN AN ACCIDENT. - [SDR CA150707008](https://openairdocs.org/sdr/CA150707008.md): Magneto · out of adjust · Jun 23, 2015 · Cessna 172P · Magneto/Distributor > (CAN) MAGNETO TIMING HAD DRIFTED FROM 25 TO 32 DEGREES BTDC AFTER ONLY 53.9HRS SINCE 500HR INSPECTION. - [SDR CA150611006](https://openairdocs.org/sdr/CA150611006.md): Magneto · failed · May 27, 2015 · Cessna 172P · Magneto/Distributor > (CAN) MAGNETO FAILED FUNCTION CHECK AT ONLY 200.5 HRS TTSN. MAGNETO SHOWED SIGNS OF INTERNAL CARBON TRACKING. - [SDR CA150501004](https://openairdocs.org/sdr/CA150501004.md): Crankcase · cracked · Apr 29, 2015 · Cessna 172P · Reciprocating Engine Power Section > (CAN) CRANKCASE HALVES FOUND TO BE CRACKED AT NR 2 & NR 4 LOWER FORWARD THRU STUD REINFORCMENT BOSSES. - [SDR CA150417006](https://openairdocs.org/sdr/CA150417006.md): Nut · separated · Apr 13, 2015 · Cessna 172P · Nose/Tail Landing Gear > (CAN) CROSSWIND HARD LANDING ON NOSE CAUSING NUT TO SEPARATE, OPENING OF THE FORK, WHEEL FOUND SHIFTER. PART SEND FOR NDT. NO VISIBLE DAMAGE EXCEPT SCRATCH ON 1/2 WHEEL HUB. - [SDR CA150310010](https://openairdocs.org/sdr/CA150310010.md): Spring · broken · Mar 9, 2015 · Cessna 172P · Rudder Control System > (CAN) PILOT REPORTED LOUD BANG ON TAXI IN FROM FLIGHT AND RUDDER FELT LOOSE. RUDDER CONTROL SYSTEM INSPECTED FOUND RUDDER RETURN SPRING BROKEN ON LT RUDDER BAR. NEW SPRING WAS INSTALLED RUDDER FEELS NORMAL WHEN MOVED. NO IDEA HOW OLD THE OLD SPRING WAS. RT - [SDR CA150311009](https://openairdocs.org/sdr/CA150311009.md): Air Box · damaged · Feb 5, 2015 · Cessna 172P · Engine Air Intake System > (CAN) AFTER LANDING AND DURING THE 3RD START OF THE DAY THE ACFT EXPERIENCED AN ENGINE FIRE, DURING THE MAINTENANCE INVESTIGATION IT WAS DETERMINED THAT THE FIRE STARTED IN THE CARBURETOR HEAT BOX THAT WAS INSTALLED. STC SA4428SW (INSTALLATION OF ENGINE IN AC - [SDR 2015FA0000047](https://openairdocs.org/sdr/2015FA0000047.md): Bolt · cracked · Jan 16, 2015 · N388V · Cessna 172P · Main Landing Gear > FOUND DURING AN ANNUAL INSPECTION. THE RT MLG SPRING ASSY, WAS BEING REPLACED DUE TO ELONGATED MOUNTING HOLES WHERE THE MLG AXLE ATTACHES. UPON REMOVING THE RT MLG SPRING ASSY, THE MOUNTING BOLT WAS FOUND TO BE BENT AND HAVE TWO CRACKS THROUGH ITS SHANK. - [SDR KC2R1202201449575](https://openairdocs.org/sdr/KC2R1202201449575.md): Impulse Coupling · cracked · Dec 2, 2014 · N9815L · Cessna 172P · Magneto/Distributor > DURING PERFORMANCE OF MAGNETO "500 HOUR INSPECTION", IMPULSE COUPLING WAS FOUND TO BE CRACKED AT THE TAPER SEAT AND AT BOTH AXLE RIVET LOCATIONS ON BASE PLATE OF IMPULSE COUPLING ASSY. HAVE SEEN A VERY LARGE PERCENTAGE OF IMPULSE COUPLINGS DEVELOPE CRACKS IN S - [SDR CA141223008](https://openairdocs.org/sdr/CA141223008.md): Drive Assy · broken · Nov 21, 2014 · Cessna 172P · Engine Starter > (CAN) STARTER DRIVE END WAS FOUND TO BE SEPERATING FROM THE STARTER MOTOR. - [SDR CA141022003](https://openairdocs.org/sdr/CA141022003.md): Carburetor · fluctuates · Oct 21, 2014 · Cessna 172P · Fuel Control/Reciprocating Engines > (CAN) ENGINE HAD POWER FLUCTUATIONS DURING GO AROUND EXERCISE. ONCE ON THE GROUND THE IDLE WAS ERRATIC. CARB WAS FOUND TO HAVE A LOT OF RESIDUAL FUEL IN THE THROAT. THE AIRBOX ALSO HAD RESIDUAL FUEL INSIDE IT AS WELL AS ON THE EXTERIOR. (TC# 20141022003) - [SDR CA141020011](https://openairdocs.org/sdr/CA141020011.md): Screw · departed · Oct 20, 2014 · Cessna 172P · Fuel Control/Reciprocating Engines > (CAN) IDLE SET SCREW DEPARTED THE CARBURETTOR ON FINAL APPROACH. AIRCRAFT LANDED ON RUNWAY WITHOUT INCIDENT. - [SDR CA140904005](https://openairdocs.org/sdr/CA140904005.md): Carburetor · malfunctioned · Aug 28, 2014 · Cessna 172P · Fuel Control/Reciprocating Engines > (CAN) CARBURETOR WAS RUNNING EXTREMELY LEAN & IDLE MIXTURE CHANGES HAD NO EFFECT ON IDLE MIXTURE SETTING. - [SDR R1EV2014FA0000441](https://openairdocs.org/sdr/R1EV2014FA0000441.md): Mount · ruptured · Jul 18, 2014 · N98710 · Cessna 172P · Engine Mount Section > THE LOWER ENGINE MOUNTS RUPTURED CAUSING THE ENGINE TO DROP DOWN. THE ALTERNATE AIR CABLE STARTED TO CHAFE ON THE ENGINE MOUNT FRAME SO THE CABLE THEN CHAFED INTO THE ENGINE MOUNT FRAME MORE WHEN THE ENGINE SHIFTED ON THE MOUNTS THAT NOW HAVE PLAY IN THEN WIT - [SDR R1EV2014FA0000440](https://openairdocs.org/sdr/R1EV2014FA0000440.md): Mount · ruptured · Jul 18, 2014 · N99938 · Cessna 172P · Engine Mount Section > THE LOWER ENGINE MOUNTS RUPTURED CAUSING THE ENGINE TO DROP DOWN. THE ALTERNATE AIR CABLE STARTED TO CHAFE ON THE ENGINE MOUNT FRAME SO THE CABLE THEN CHAFED INTO THE ENGINE MOUNT FRAME MORE WHEN THE ENGINE SHIFTED ON THE MOUNTS THAT NOW HAVE PLAY IN THEN WIT - [SDR CA140625004](https://openairdocs.org/sdr/CA140625004.md): Master Switch · failed · Jun 23, 2014 · Cessna 172P · Electrical Power System > (CAN) MASTER SWITCH FAILED INTERNALLY CAUSING VOLTAGE REGULATOR FAILURE. - [SDR CA140331011](https://openairdocs.org/sdr/CA140331011.md): Hinge · cracked · Mar 24, 2014 · Cessna 172P · Vertical Stabilizer > (CAN) RT AND LT UPPER LEG CRACKED. - [SDR 2014FA0000035](https://openairdocs.org/sdr/2014FA0000035.md): Spar · cracked · Jan 17, 2014 · N65275 · Cessna 172P · Horizontal Stabilizer, Spar/Rib > DURING AN ANNUAL INSPECTION, FWD STABILIZER ASSY WAS FOUND TO BE CRACKED ON BOTH SIDES OF THE CENTER HOLE ON THE FWD SPAR ASSY. - [SDR 2013FA0000483](https://openairdocs.org/sdr/2013FA0000483.md): Seat Frame · cracked · Aug 23, 2013 · N99697 · Cessna 172P · Flight Compartment Equipment > SEAT PAN FRAME IS CRACKED NEAR WELD OF ATTACH PAN TO SEAT ASSY. - [SDR CA130828001](https://openairdocs.org/sdr/CA130828001.md): Shaft · sheared · Aug 20, 2013 · Cessna 172P · Master Cylinder/Brake Valve > (CAN) BRAKE MASTER CYLINDER SHAFT BROKEN. - [SDR 2013FA0000362](https://openairdocs.org/sdr/2013FA0000362.md): Seat Frame · cracked · Jun 20, 2013 · N98914 · Cessna 172P · Flight Compartment Equipment > SEAT WAS FOUND CRACKED WHERE SEAT BASE FRAMES EXTEND TO ATTACHMENT POINTS. Next page: https://openairdocs.org/model/cessna-172p/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 = '172P' ORDER BY difficulty_date DESC ``` This list as a web page: https://openairdocs.org/model/cessna-172p/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.