JASC 3243
Service difficulty reports · 445
Reports filed under 3243 · Master Cylinder/Brake Valve, newest first.
Query with SQL
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 jasc_code = '3243' 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.
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 jasc_code = '3243' ORDER BY difficulty_date DESC
Run it at the DuckDB prompt, or in any tool that reads Parquet over HTTPS. More ways to query the release are on Use the data.
SDR CA980915024Control Cable · frayed(CAN) UNABLE TO RELEASE PARKING BRAKE, CREW HAD TO CYCLE BRAKES TO RELEASE PARKING BRAKE. DUAL POWER BRAKE VALVE CONTROL CABLE FRAYED AT PULLEY UNDER PILOT'S SEAT. REPLACED.SDR AU980983Nut · missing(AUS) BRAKE MASTER CYLINDER PISTON TO SHAFT SECURING NUT MISSING.SDR 98ZZZX3015Brake Cylinder · crackedDURING ANNUAL INSPECTION, BOTH BRAKE CYLINDERS WERE FOUND CRACKED AT UPPER CALIPER BOLT HOLE. BELIEVED CAUSED BY AGE (ORIGINAL EQUIPMENT) AND POSSIBLY PAST OVERTORQUE OF BOLTS. REPLACED BOTH ASSEMBLIES.SDR AU980684O-Ring · failed(AUS) LT BRAKE CYLINDER `O' RING SEAL LEAKING. PART TC: 4,407.SDR REXA98075Master Cylinder · no pressureFO LEFT BRAKE PEDAL NO PRESSURE. SERVICED FO'S BRAKE MASTER CYLINDER. (M)SDR 98ZZZX1384Piston Rod · failedAFTER REPLACING WHEEL BRAKE ASSEMBLIES, WENT TO BLEED BRAKE SYSTEM. NO BRAKE RESPONSE ON PILOT'S LEFT BRAKE. TROUBLESHOT TO POWER BRAKE VALVE. FOUND PISTON ROD BROKEN AND LODGED IN OPERATING LINKAGE. THE PILOT HAD NOT REPORTED A PROBLEM WITH THE BRAKE SYSTSDR AU980276Clevis · failed(AUS) LT BRAKE MASTER CYLINDER CLEVIS BOLT FAILED.SDR MASA98005Master Cylinder · wornFLT 5392 - BOS-PQI - CAPTAIN REPORTED LOSS OF RT BRAKES ON CAPTAINS SIDE ON LANDING. MAINTENANCE REMOVED AND REPLACED THE MASTER CYLINDER. OPS CHECK GOOD. AIRCRAFT WAS RETURNED TO SERVICE. (M)SDR CA980113010Brake Valve · failed(CAN) ON LANDING, AIRCRAFT EXPERIENCED AN UNCOMMANDED APPLICATION OF BRAKES. AIRCRAFT CAME TO COMPLETE STOP ON RUNWAY. REQUIRED EXCESSIVE THRUST TO TAXI. ENGINES STOPPED AND MAINTENANCE CREW CALLED TO AIRCRAFT. ON ARRIVAL, BRAKES NO LONGER ENGAGED. AIRCRAFSDR M8XA9700019Valve · defectiveEN ROUTE, THE FLIGHT CREW REPORTED A PROBLEM WITH THE EMERGENCY/ PARKING BRAKE ACCUMULATOR PRESSURE INDICATION. THIS IS A REPEAT OF SAME PROBLEM EXPERIENCED EARLIER IN THE DAY. REPLACEMENT OF THE PRESSURE SWITCH DID NOT CORRECT THE PREVIOUS DISCREPANCY. THESDR CALA9701551Control Valve · out of adjustTHE AIRCRAFT WAS RETURNED TO DTW FOR REPORTS OF A RUBBER ODOR OBSERVED IN THE CABIN. THERE WERE NO VISIBLE SIGNS OF SMOKE. THE ODOR BEGAN TO DISSIPATE WITHIN THREE MINUTES. THERE WERE NO ENGINE OR AIRCRAFT SYSTEM PROBLEMS NOTED. THE AIRCRAFT LANDED WITHOUTSDR 97ZZZX4753Plug · brokenPART RECEIVED FROM STOCK. WHEN SCREWED INTO MASTER CYLINDER BY HAND, SIDE OF PLUG BROKE OFF. A SECOND PLUG WAS INSTALLED BY HAND AND IT BROKE IN THE SAME AREA. THESE PLUGS ARE MADE FROM BRITTLE PLASTIC AND WERE SUPPLIED BY CESSNA.SDR CA971006008Seal · leaking(CAN) DURING TAXIING ALTERNATE BRAKE ON AND ALTERNATE OFF POSITIONS, NO BRAKE PRESSURE AND NO BRAKE PEDALS. PARKING BRAKE PRESSURE OKAY AND WITH NORMAL ON POSITION, NORMAL BRAKE. TROUBLE SHOOTING FOUND BRAKE LOW PRESSURE RESERVOIR 4300 INDICATOR IN RED BAND, ASDR 97ZZZX3384O-Ring · wornLEFT BRAKE INOPERABLE CAUSING PILOT TO LOSE CONTROL AND STRIKE ANOTHER AIRCRAFT. INVESTIGATION FOUND NO FLUID IN BRAKE, CAUSED BY O-RINGS BEING OLD, WORN, AND HARD AND LEAKING. REPLACED O-RINGS AND SERVICED BRAKE SYSTEM. OPERATION WAS NORMAL.SDR VTZA97298Master Cylinder · loose capFLT 6296 - IAD-ROC - DURING CLIMB, MADE UNSCHEDULED LANDING AT IAD DUE TO HYDRAULIC FLUID UNDER CAPTAINS RIGHT RUDDER PEDAL. AIRCRAFT LANDED AND WENT TO THE GATE AT IAD WITH NO FURTHER PROBLEMS. MAINTENANCE INSPECTED AND TIGHTENED LOOSE SERVICE CAP SCREW ON SDR MASA97054Brake Cylinder · wornHGR/RDG - FLT 5356 - PILOT'S LEFT BRAKE LOSES PRESSURE WHEN RIGHT RUDDER PEDAL IS DEPRESSED. MAINTENANCE REMOVED AND REPLACED THE LEFT BRAKE CYLINDER, OPS CHECK GOOD. AIRCRAFT RETURNED TO SERVICE. (X)SDR 97ZZZX2372Master Cylinder · leakingDURING A ROUTINE AND B LETTER CHECK, FOUND BOTH PILOTS' LEFT AND RIGHT MASTER CYLINDERS LEAKING. BOTH CYLINDERS WERE REPLACED.SDR CA970422019Brake Valve · defective(CAN) AFTER LANDING WHEN BRAKES APPLIED, THE LEFT MAIN WHEEL LOCKED AND THE AIRCRAFT STARTED TO PULL TO THE LEFT. RIGHT RUDDER AND BRAKES APPLIED TO KEEP AIRCRAFT STRAIGHT. WHEN AIRCRAFT CAME TO REST THE LEFT TIRE BLEW AND RIGHT TIRE HAD ROTATED ON THE RIM. THSDR 97ZZZX1175Cylinder Assy · nut detachedCLIMBING OUT AT FL 300 AT APPROX 120 MILES FROM THE AIRPORT, THE HYD FLUID LOW ANNUNCIATOR ILLUMINATED. THE PILOTS DECIDED TO RETURN TO THE AIRPORT TO HAVE THE ACFT CHECKED. THE EMER GEAR EXT SYS WAS EMPLOYED TO LOWER THE GEAR AND THE EMER BRAKING WAS USED ASDR ABXA9700012Brake Valve · defectiveDURING TAXI THE LEFT MAIN LANDING GEAR BRAKES HAD NO EFFECT IN STOPPING THE AIRCRAFT. REPLACED INBOARD BRAKE CONTROL VALVE, PERFORMED PRESSURE CHECK AND ADJUSTMENT OF BRAKE CONTROL VALVE, OPS CHECKED GOOD AND NO LEAKS NOTED IAW DC-8 MM.SDR 96ZZZX5814Piston · stuckDURING LANDING, THE LEFT BRAKE LOCKED AT FIRST APPLICATION. THE LEFT TIRE SKIDDED AND THE AIRCRAFT LEFT THE RUNWAY. LATER, THE BRAKE RELEASED AND THE AIRCRAFT WAS TAXIED TO MAINT. A MECH DETERMINED THAT HYD FLUID SEEPAGE HAD CONGEALED AROUND THE PISTON, PRESDR 96ZZZX5330Cylinder · crackedPILOT REPORTED BRAKE MALFUNCTION ON LANDING. MAINTENANCE INSPECTED AND FOUND LT BRAKE CYLINDER, LOWER PORTION CRACKED. APPEARED TO BE IMPACT DAMAGE DUE TO TRACES OF YELLOW PAINT AND SCRATCHES OF CYLINDER HOUSING. ADDITIONAL DAMAGE INCLUDED THE LOWER ANCHOR SDR CA961007016Master Cylinder · failed(CAN) CO-PILOT RIGHT BRAKE HAD ZERO ACTION. FOUND RESERVOIR CYLINDER EMPTY. CO-PILOT LEFT BRAKE MASTER CYLINDER SLOPPY AS WELL AS BOTH PILOTS BRAKE CYLINDERS. ALL 4 MASTER CYLINDERS REPLACED WITH NEW "BATCH".SDR CA961007015Master Cylinder · failed(CAN) CO-PILOTS BRAKES - NO BRAKING ACTION, FOUND RESERVOIRS EMPTY BUT NO LEAKS IN SYSTEM. BELIEVE REVERSE PRESSURE EMPTIED RESERVOIR THROUGH FILLER PORT. FACTORY INFORMED SUBMITTER THAT MASTER CYLINDER AND RESERVOIR PROBLEMS. CHANGED BOTH. RESERVOIRS CAN LEAKSDR CA960927005Cylinder · low pressure(CAN) BOTH LEFT AND RIGHT MASTER CYLINDERS ON THE CO-PILOTS SIDE FAIL TO PRODUCE ADEQUATE PRESSURE FOR BRAKING. PILOT'S CYLINDERS SEEM TO WORK WELL. THE SUBMITTER STATES THAT THE FLUID IN THE CYLINDERS APPEARS DIRTY AND SPECULATES THAT THERE COULD BE SOME O-RISDR PNSA0902Master Cyl · leakingRT BRAKE FAILED DURING ENGINE START. RESEALED MASTER CYL.SDR VNAA9608003Brake Vle · defectiveSHORTLY AFTER T/O DURING CLIMB OUT, THE FLIGHT CREW WAS ALERTED BY AN EMERGENCY/PARK BRAKE CAS MESSAGE. CREW ELECTED TO RETURN TO THE FIELD AND AIRCRAFT LANDED WITHOUT FURTHER INCIDENT. PIT MX REPLACED THE EMERGENCY/PARK BRAKE VALVE IAW MM 32-43-02, GROUND CSDR 96ZZZX4833Master Cylinders · failedAIR CREWS HAVE REPORTED AIRCRAFT BRAKE PEDALS WERE SPONGY OR HAVE FADED/FAILED DURING BRAKING APPLICATIONS. AFTER 20,000 HOURS OF OPERATION AT THE USAFA, BRAKE SYSTEMS STARTED TO DEVELOP PROBLEMS. REVISED BRAKE BLEEDING PROCEDURES WERE DEVELOPED, OPERATOR BRSDR 96ZZZX3776Cylinder Assy · splitDURING BRAKE TESTING AFTER OVERHAUL, HYDRAULIC PRESSURE EQUAL TO 150 PSI WAS APPLIED TO BRAKE CYLINDER LEAK CHECK. THE ACTUAL TEST PRESSURE IS 180 PSI PER MANUAL. AT 150 PSI, THE BRAKE CYLINDER ASSY SPLIT FROM ONE END OF BOLT HOLE APPROXIMATELY ONE-HALF WAY SDR CA960610006Spring Washer · broken(CAN) ON LANDING AIRCRAFT PULLED TO THE LEFT AND POWER WAS REQUIRED TO CLEAR RUNWAY. SMOKE NOTED COMING FROM LH BRAKES. LEFT HAND BRAKE WAS VERY HOT AND LEAKING FLUID. BOTH LH ASSEMBLIES AND WHEELS WERE REPLACED. CAPTAINS BRAKE MASTER CYLINDER ASSEMBLY WAS REPSDR 97ZZZX423Master Cyl · screws failedAFTER LANDING, THE PILOT WAS TURNING THE AIRPLANE AROUND ON THE GROUND TO TAXI BACK FOR ANOTHER LOAD, WHEN THE LEFT BRAKE PEDAL TIPPED FORWARD BEYOND THE NORMAL BRAKING ACTION AND SEEMED DISCONNECTED, AND THE BRAKE DID NOT WORK ANYMORE. INSP FOUND THE THREE SSDR 96ZZZX3589Master Cylinder · leakingMASTER CYLINDER LEAKING BEYOND SERVICEABLE LIMITS. REPALCED WITH NEW UNIT, CORRECTED PROBLEM.SDR AU961206Rod · failed(AUS) LH TOE BRAKE MASTER CYLINDER PISTON ROD FAILED AT BOTTOM THREAD OF EYE ENDSDR CA960304012Master Cylinder · frozen water(CAN) BRAKE REPORTED TO NOT BE CAPABLE OF HOLDING THE AIRCRAFT. INVESTIGATION FOUND THAT THE AIRCRAFT HAD BEEN STORED OUTSIDE DURING FREEZING TEMPS AND THAT AN AMOUNT OF WATER HAD FROZEN IN THE MASTER CYLINDER THUS DEGRADING BRAKING PERFORMANCE. THE MASTER CYLSDR 96ZZZX1096Cylinder · outlet failedAFTER LANDING, PILOT COMPLAINED OF NO LEFT BRAKE. INSPECTION REVEALED LEFT BRAKE MASTER CYLINDER OUTLET THREAD BOSS HAD SEPARATED FROM THE MASTER CYLINDER, DISCONNECTING THE LEFT BRAKE HOSE.SDR 95ZZZX7018Master Cylinder · contaminatedCONSTANT REPORTS OF POOR BRAKES PROMPTED A REMOVAL AND INSPECTION OF MASTER CYLINDER. FOUND SIGNS OF CONTAMINATION BY REMAINS OF DISSOLVED RUBBER. REPLACED MASTER CYLINDER AND HOSES. SUBMITTER BELIEVES BRAKES WERE SERVICED WITH SOMETHING OTHER THAN WHAT IS SDR 96ZZZX184Housing · crackedUPON FURTHER INSPECTION OF PISTON HOUSING AFTER BLEEDER SHEARED OFF, CORROSION AND CRACKS WERE FOUND AT LOCATOR PIN HOLES. SUBMITTER SUGGESTS CORROSION COULD BE STOPPED BY MORE FREQUENT CLEANING AND PAINTING. CRACKS MAY HAVE STARTED FROM OVERTORQUE OF NUTS OSDR 95ZZZX6446Master Cylinder · failedSTUDENT PILOT STATED THAT RIGHT RUDDER PEDAL BROKE (ON START-UP). CHECKED TO FIND THE RIGHT PILOT'S MASTER CYLINDER HAD BROKEN. ALL HYDRAULIC FLUID WAS GONE AND RIGHT RUDDER PEDAL WAS AT 90 DEGREE ANGLE. THE PISTON ROD HAD COME OUT OF THE UNIT BECAUSE OF A SDR 95ZZZX5953Master Cylinder · failedPOST-INCIDENT INVESTIGATION FOUND RIGHT MASTER BRAKE CYLINDER NOT ACTUATING RIGHT BRAKE. BRAKE ON RIGHT MAIN GEAR DOOR NOT FUNCTIONING. WHEN BOTH BRAKES WERE APPLIED, AIRCRAFT TURNED LEFT AND HIT OBJECTS OFF THE RUNWAY CAUSING SUBSTANTIAL DAMAGE TO THE AIRCRSDR 95ZZZX5762Bracket · brokenLEFT BRAKE MASTER CYLINDER BRACKET BROKEN. BRACKET SET, PN 0411549, INSIDE BENT AND BROKEN, PN 0411550, OUTSIDE BADLY BENT.SDR RAIA950736Brake Syst · reqd serviceFIRST OFFICERS RT BRAKE INOP. BLEED AND SERVICED MASTER CYLINDER (P/N ACM26810). (W)SDR HEEA955182Master Cylinder · defectiveMASTER CYLINDER WILL NOT DEVELOP ANY PRESSURE. POSSIBLE INTERNAL LEAKAGE. REPLACED WITH SERVICEABLE MASTER CYLINDER.SDR 95ZZZX1644Cylinder · crackedAT NORMAL ANNUAL INSPECTION, PART WAS REMOVED TO BE CLEANED AND INSPECTED. FOUND TO BE INITIALLY ONLY DIRTY AND CORRODED, HOWEVER, CLOSER INSPECTION REVEALED ANCHOR BOLT LUGS TO BE CRACKED. SUBMITTER SUGGESTS REMOVE, CLEAN, INSPECT, AND SERVICE AT REGULAR INSDR 95ZZZX1383Cyl O-Ring · failedPILOT REPORTED UPON TURNING OFF TAXIWAY, RT BRAKE FAILURE. TOWED AIRCRAFT INTO PARKING POSITION. INSPECTION OF RT BRAKE ASSY SHOWED SIGNS OF BRAKE FLUID LEAKING FROM LOWER PISTON ASSY. REMOVED BRAKE ASSY AND REPLACED DEFECTIVE O-RING. REINSTALLED BRAKE ASSSDR SCNA95012Valve · leaksMSP - ACFT RETURNED TO GATE, CREW REPORTED SMOKE IN CABIN AND COCKPIT. FOUND THE PARKING BRAKE VALVE LEAKING SKYDROL INTO APU INTAKE. REPLACED VALVE AND OPERATIONS CHECKED NORMAL. (W)
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