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.

SDR AALA202610101350Master Cylinder · defectiveAIRCRAFT WAS GROUNDED: RIGHT BRAKE UNABLE TO MODULATE BRAKING PRESSURE, RIGHT BRAKE PEDAL HAS LITTLE OR NO FEEDBACK - MAINTENANCE REPLACED THE RIGHT-HAND MASTER CYLINDER AND ACCOMPLISHED A SATISFACTORY OPERATIONAL CHECK PER AMM 32-43-12Oct 5, 2026 · N839AW · Airbus A319132SDR COEA2026082705738Master Cylinder · failedFLIGHT 7804, PILOT SIDE RIGHT BRAKE PEDAL INEFFECTIVE. REPLACED ALL 4 MASTER CYLINDERS AND RT BRAKE ASSEMBLY. FLUSHED ENTIRE SYSTEM. ALL CHECKS GOOD.Aug 26, 2026 · N738FX · Textrn 408SDR 37CA2026070900144Skid · corrodedCORROSION WAS IDENTIFIED IN THE SKID TUBE BUSHING AREA WHERE SKID SHOE THROUGH BOLTS ATTACH.Jul 9, 2026 · N352LL · Agusta AW119MKIISDR ELYA20250804004Master Cylinder · bypassingCOMPLETE LOSS OF LEFT BRAKE. REMOVED AND REPLACED MASTER CYLINDER.Aug 4, 2025 · N244US · Tecnam P2012SDR DALA2025062304667Fitting · shearedSHIP 3236 - MISC/DE - DUE TO L/G DOORS NOT CLOSED ECAM WARNING AT GEAR EXTENSION. FOUND LH FORWARD GEAR DOOR ACTUATOR FITTING ON THE KEEL BEAM WITH SHEARED FASTENERS. MAINTENANCE STILL IN PROGRESS. (LP: 7474401)Jun 22, 2025 · N336NW · Airbus A320212SDR AALA202503234383Master Cylinder · low pressureAIRCRAFT WAS GROUNDED: AFTER AUTOBRAKES DISENGAGED, LEFT BRAKE PEDAL DEFLECTION FOR FIRST 3" OF TRAVEL, DOES NOT PRODUCE ANY BRAKING. MAINTENANCE REPLACED THE ALTERNATE BRAKE MASTER CYLINDER AND ACCOMPLIHSED A SATISFACTORY LEAK / OPERATIONAL CHECK PER AMM 32-4Mar 21, 2025 · N187US · Airbus A321211SDR AALA202409108825Master Cylinder · leakingAIRCRAFT WAS GROUNDED: UPON LANDING LEFT BRAKES GRABBED HARD, RIGHT BRAKES PUSHED TO FLOOR FOR BRAKE APPLICATION. TAXI IN BOTH BRAKES VERY SOFT PUSHEDTO FLOOR FOR FULL STOP. **ORIGINAL REPORT WAS AALA202409023554** MAINTENANCE REPLACED THE BRAKE CONTROL HYDRAUAug 27, 2024 · N655AW · Airbus A320232SDR AALA202409106689Master Cylinder · leakingAIRCRAFT WAS GROUNDED: UPON LANDING LEFT BRAKES GRABBED HARD, RIGHT BRAKES PUSHED TO FLOOR FOR BRAKE APPLICATION. TAXI IN BOTH BRAKES VERY SOFT PUSHEDTO FLOOR FOR FULL STOP. **ORIGINAL REPORT WAS AALA202409023554** MAINTENANCE REPLACED THE BRAKE CONTROL HYDRAUAug 27, 2024 · N655AW · Airbus A320232SDR AALA202407088714Master Cylinder · leakingAIRCRAFT WAS GROUNDED: FLIGHT CREW REPORTED THAT THE RIGHT BRAKE PEDAL HAS 1-2 INCHES OF TRAVEL BEFORE ENGAGING. MAINTENANCE FOUND THE FLUID LEVEL OF THE LOW PRESSURE BRAKE RESERVOIR BELOW LIMITS DUE TO THE RIGHT BRAKE MASTER CYLINDER 2626GM LEAKING WHICH WAS Jul 5, 2024 · N110UW · Airbus A320214SDR SWAA2024062003261Wheel · abnormalAFTER LANDING AT TAXI. SPEED FELT SLIGHT SHIMMY FROM NOSE WHEEL AND TOWER REPORTED SMALL AMOUNT OF SMOKE FROM FRONT OF AIRCRAFT/ ONCE INFORMED OF SMOKE AIRCRAFT WAS STOPPED/ IN CONCURRENCE WITH STOP SMOKE WAS NO LONGER OBSERVED AND GROUND PERSONNEL CONFIRMED #Jun 18, 2024 · N7869A · Boeing 73779PSDR AALA202406205113Master Cylinder · leakingAIRCRAFT WAS GROUNDED: FLIGHT CREW REPORTED WHEEL BRAKE VIBRATION ON LANDING ROLLOUT STARTING APPROXIMATELY 60 KNOTS TO 30 KNOTS. MAINTENANCE FOUND THE RIGHT HAND BRAKE MASTER CYLINDER LEAKING AND REPLACED IT PER AMM 32-43-12. A SATISFACTORY LEAK / OPERATIONALJun 18, 2024 · N709UW · Airbus A319112SDR 141A2024040200002Master Cylinder · defectiveLEFT HAND BRAKE INEFFECTIVE. MAINTENANCE REPLACED LEFT HAND MASTER CYLINDER. PERFORMED HIGH SPEED TAXI. OPS CHECKED GOODMar 29, 2024 · N1258B · Cessna 208BSDR SWIA20231120Unknown · warning messageMLG OVERHEAT WARNING MESSAGE DURING DESCENT. EVERY TIME WE RESET THE MASTER WARNING, IT WOULD GO OFF AGAIN. FOLLOWED QRH PROCEDURE. WITH GEAR FULLY DOWN, ALL BRAKE TEMPS SHOWED ZERO BUT THE WARNING MESSAGE PERSISTED. WARNING WENT AWAY ONCE WE WERE FULLY CONFIGNov 20, 2023 · N708EV · Cndair CL6002C10SDR ENHA202310251716Brake Sys · faultyRIGHT BRAKE MUSHY- AT TIMES NON-RESPONSIVE BRAKE ON RIGHT MAIN GEAR-YAWS PLANE TO THE LEFT ON TAXIOct 24, 2023 · N9539F · Cessna 208BSDR FDEA202310101738Brake · failedUPON GEAR RETRACTION ON TAKEOFF IN IND WE GOT A BRAKE TEMP LIGHT ON CLIMB OUT. THE #6 BRAKE CONTINUED TO CLIMB AND PEAKED AT 7. WE RAN QRH PROCEDURES AND EXTENDED THE GEAR TO COOL THE BRAKE. UPON LANDING IN PHX THE #6 BRAKE INDICATOR WAS THE FIRST ONE TOct 10, 2023 · N188FE · Boeing 767300SDR YADA2023092101Master Cylinder · failedPILOT REPORTED AFTER LANDING AND DURING TAXI "PILOT SIDE LEFT BRAKE GOES FLAT". MAINTENANCE PERFORMED TROUBLESHOOTING AND FOUND THAT THE PILOTS LEFT PEDAL BRAKE MASTER CYLINDER WAS FULLY COMPRESSING CAUSING PEDAL TO GO ALL THE WAY TO THE FLOOR. PILOTS LEFT PESep 21, 2023 · N113AX · Beech 1900CSDR KCQA202306050504Hose · leakingPILOT RH HAND BRAKE INOPERATIVE. ON WO# 000101 DATED 06/05/2023 FOUND EMPTY BRAKE RESERVOIR. INSPECTED BRAKE PLUMBING AND FOUND LEAKING LOWER HOSE ON PILOT SIDE RH MASTER CYLINDER. REMOVED AND REPLACED WITH NEW HOSE AND BLED BRAKES IAW BE99 AMM 32-40-00 ANDJun 4, 2023 · N499CZ · Beech 99ASDR SIMA20230414001Unknown · unknownRIGHT MAIN LANDING GEAR WHEEL WELL ELECTRIC FUMES/ ACID ODOR ALSO LIQUID SPILL/ HIDRAULICS-C/A-RESECURED HYD LINE ON #1 BRAKE VALVE & REMOVED AND REPLACED O-RINGS IAW AMM - 32-44-01. NO LEAKS NOTED.Apr 14, 2023 · N279MQ · Emb ERJ170200LRSDR UOIA2023041200006Master Cylinder · blockedAFTER LANDING LOSS BRAKE ACTION.Apr 12, 2023 · N903GD · Bnorm BN2A8SDR IPXA2023040392540Anti-Skid Sys · warning messageANTISKID INOP EICAS MSG QRH PROCEDURE ACCOMPLISHED. ANTISKID/AUTOBRAKE CONTROL UNIT SHOWS VLV 7 NIL TIME OR PARTS AT EMA. XFERD TO MIL IAW MEL 32-42-1-1A DEACTIVATED BY SPECIAL TOOL CAT C 10 DAYS. PLAARS INSTALLED DMP C/OUT SATISREVERSED DMP 32-42-1-1A (SLIDE Apr 3, 2023 · N328UP · Boeing 76734AFSDR 2023FA0000181Unknown · unknownCREW REPORTED ON APPROACH 6 INTO KTEB, PRIOR TO FAF, AMBER BRAKE 50% DEGRADED CAS MESSAGE POSTED. EXECUTED GO-AROUND, WITH TOWER INSTRUCTIONS. VECTORED TO FIGURE OUT THE SITUATION. ASKED FOR DIVERSION INTO KEWR. WERE GIVEN DELAYED VECTORS DUE TO AN EMERGENCY AMar 27, 2023 · N500VJ · Bombdr BD7001A11SDR IPXA2023030491510None · inoperativeINSPECTION TYPE:NAON LANDING ROLL AUTO BRAKES DID NOT DISENGAGE BY USING THE SPEED BREAK LEVERPERFORMED OPERATIONAL TEST PER AMM 32-42-00-715-263. TEST GOOD & NO HISTORY.Mar 3, 2023 · N307UP · Boeing 76734AFSDR SWIA20230223Unknown · crackedIN RH W/W, BRAKE PRESSURE TRANDUCER'S FWD HYD LINE MOUNTING BRACKET IS CRACKED (MARKED). (C-CHECK RO 4/5/2023) REPLACED RH MLG UPPER W/W BRAKE PRESSURE TRANSDUCERS FWD HYD MOUNTING BRACKET. REF CRJ200 SRM 51-42-06 AND REF DWG 601R75261 REV -N. PRESSURE Feb 23, 2023 · N900EV · Cndair CL6002B19SDR MTNA20230127001Master Cylinder · faultedON TAXI TO RAMP IT WAS OBSERVED THE CAPTAINS RIGHT SIDE BRAKE WAS INEFFECTIVE. REPLACED CAPTAINS BRAKE MASTER CYLINDER. OPS CHECK GOOD. NO LEAKS NOTED.Jan 27, 2023 · N806FX · Aerosp ATR72212SDR SWIA202266739None · overheatedBRAKE OVER HEAT MASTER WARNING IN DECENT. COME ON SHOWED 12 ON RIGHT INBOARD THE WENT TO 0, WENT AWAY. CAME BACK ON AT 20. FLOWED QRH STAYED RED 0 ALL THE WAY TO THE GATE. (FLIGHT 3083 - FILED CLOSED) THIS DISCREPANCY WAS TRANSFERRED TO CAMP ITEM 25769593Nov 8, 2022 · N744EV · Cndair CL6002C10SDR 2022FA0000662Master Cylinder · detachedPILOT R/H MASTER CYLINDER PISTON CAME OUT OF HOUSING WHEN PARKING BRAKE WAS APPLIED. THIS CAUSING THE RUDDER PEDAL TO FALL BACKWARDS. SNAP RING RETAINS GLAND THAT PREVENTS THE PISTON AND SHAFT FROM SEPARATING FROM HOUSING.Nov 1, 2022 · N685ND · Piper PA28161SDR 2022FA0000661Master Cylinder · detachedCO-PILOT L/H MASTER CYLINDER PISTON PULLED OUT OF HOUSING WHEN PARKING BRAKE APPLIED. CAUSING THE L/H RUDDER PEDAL TO FALL BACKWARDS. SNAP RING RETAINS GLAND HOLDING PISTON INSIDE OF MASTER CYLINDER.Nov 1, 2022 · N706ND · Piper PA28161SDR YENA2022110101050None · failedFLT# 8598, VQQ-FLL. BRAKES ALTERNATE (R) RELEASE ECAM MSG, AFTER GEAR DOWN, WENT AROUND MAINT SAID TO CYCLE A/SKID NW SWITCH, MESSAGE WENT AWAY BUT RETURNED ON NEST GEAR DOWN; REMOVED & REPLACED RH ALTERNATE BRAKE DIRECT DRIVE VALVE (98GG) IAW AMM32-43-35. OPSOct 31, 2022 · N809JB · Airbus A320232SDR WX0A1900010074286Servo Valve · faulty(EMERGENCY DECLARED) AFTER SELECTING GEAR DOWN RECEIVED BRAKES ALTN R RELEASED, ECAM MESSAGE ""ALTN R BRK"" WAS DISPLAYED ON STATUS PAGE./ R&R BRK ALTN SERVOVALVE,R&R PRESS XDCR-BRK,YELLOW R (100GG) IAW AMM 32-44-29,R&R PRESS XDCR 100GG CONNECTOR (100GGA) IAWOct 17, 2022 · N326NV · Airbus A319111SDR 2022FA0000535Piston Rod · brokenTHE THREADED END OF THE RIGHT BRAKE MASTER CYLINDER PISTON ROD SNAPPED OFF WHILE BLEEDING THE BRAKES. THE SEATS WERE OUT OF THE AIRCRAFT FOR ANNUAL INSPECTION SO THE RUDDER PEDAL WAS ONLY BEING PUSHED BY HAND. THE BROKEN END OF THE ROD LOOKED LIKE IT HAD BEESep 20, 2022 · N2385U · Cessna 172DSDR IPXA2022052382383Anti-Skid Sys · warning message**EMERGENCY DECLARED** **NORMAL LANDING** DURING CRUISE-EICAS ANTI SKID ILLUMINATED RAN QRH-NO CHANGE. DMP COMPLIED WITH. M781726REPLACED #8 XDCR PER 32-42-06-044-023 & 32-42-06-404-010. REPLACED SKID CONTROL UNIT PER 32-42-01-024-069 & 32-42-01-404-021. CHECMay 20, 2022 · N454UP · Boeing 75724APFSDR GTIA2022051636424None · fault messageDURING APPROACH KSNA SELECTING GEAR DOWN, ECAM CAUTION BRAKE ALT BRK FAULT WHEEL SYST PAGE WAS NORMAL, HYD PRESS NORMAL (G,B,Y) ACCUM PRESSURE NORMAL UPON LANDING AT KLAS (AIR RETURN) ECAM CAUTION BRK SYS 1 FAULT UPON LANDING AUTOBRAKES & NORMAL BRAKES OPERATEMay 12, 2022 · N630NK · Airbus A320232SDR IPXA2022041481168None · failedINSPECTION TYPE:NA**EMERG DECLARED** ANTI SKIDE R FAIL DURING FIRST APPROACH WENT AROUND AND ACCOMPLISH QRH PROCEDURE 2ND APPROACH NO INDICATION NON EVENTFUL LANDINGACCOMPLISHED FIMM 32 40 12 00 FIG 110 BLOCKS 1,2, AND 3 FOUND FAULT LAST FLIGHT A/S VALVE SYS 1Apr 14, 2022 · N279UP · Doug MD11FSDR FDEA202204050873Brake · damagedBRAKE OVERHEAT ON TAXI OUT. NUMBER 5 BRAKE GOT TO 710. AIRCRAFT STOPPED AND WHILE STOPPED THE FUSE PLUG BLEW AND PRESSURE WENT TO ZERO. INSPECTED #5 MLG AXLE IAW MD11 AMM 32-43-20-4 NO HEAT DAMAGE, INSTALLED NEW #5 BRAKE AND TIRE. ALL TEST PASSED AND TApr 5, 2022 · N596FE · Doug MD11FSDR YENA2022031400176Accumulator · underservicedFLT#2736, LAX-SFO. 'ALTERNATE BRAKE SYSTEM TEST FAILED ( BRAKE PRESSURE 1000 PSI AND ACCUMULATOR NEAR 0); FOUND BRAKE ACCUMULATOR PRESS LOW. SERVICED TO SPECIFIED LIMIT REF AMM 12-14-32. AND ACCOMPLISHED OPERATIONAL CHECK OF ALTERNATE BRAKING SYSTEM FOUND SATMar 13, 2022 · N594JB · Airbus A320232SDR MTNA20220312001Master Cylinder · weakFO'S RIGHT BRAKE PEDAL WEAK IN EFFECTIVENESS. REMOVED AND REPLACED FO MASTER BRAKE CYLINDER. OPS AND LEAK CHECK GOOD.Mar 12, 2022 · N906FX · Aerosp ATR42*SDR YADA2021123101None · nonePILOT REPORT - CAPTAINS LEFT BRAKE PEDAL LOOSES PRESSURE AND GOES TO FLOOR - NO BRAKE. MAINTENANCE REPLACED THE CAPTAINS LEFT BRAKE MASTER CYLINDER.Dec 31, 2021 · N124AX · Beech 1900CSDR SIMA20210922001None · noneENROUTE HAD BRAKE LIGHT ON ?IN FLT. EMERGENCY DECLARED - IN CLIMBOUT PRKG BRK NOT RELEASED CAUTION STAYED ON UNTIL AFTER LDG BRK FAULT ADVISORY MSG THEN CAM ON AND EXTINGUISHED AT GATE-C/A-PERFORMED OPS CHECK OF SYSTEM AND INSPECTED SYSTEM OPS CHECK FAILED INSSep 22, 2021 · N212NN · Emb ERJ170200LRSDR AALA202109214315Switch · failedAIRCRAFT WAS GROUNDED: AUTO BRAKE FAILED UPON LANDING AUTO BRAKE DISARM LIGHT EXTINGUISHED IN OFF POSITION. REMOVED AND REPLACED LEFT SWITCH PACK PER WORK CARD 08L11276001.Sep 19, 2021 · N987AN · Boeing 737823SDR HYIA20210525001Master Cylinder · faultedTHE PILOT A LOSS OF PRESSURE ON THE RIGHT BRAKE DURING PARKING. MAINTENANCE INSPECTED AND FOUND THE RIGHT MASTER CYLINDER TO BE AT FAULT. REPLACED THE MASTER CYLINDER HOSE, AND RESEALED THE MASTER CYLINDER. PERFORMED BLAKE BLEEDING PROCEDURES WITH NO FURTHER May 19, 2021 · N67886 · Cessna 402CSDR MTNA20210326001Master Cylinder · inoperativePILOT REPORTED RIGHT HAND BRAKE SOFT. REMOVED AND REPLACED RIGHT BRAKE MASTER CYLINDER. OPS CHECK GOOD.Mar 25, 2021 · N869FE · Cessna 208BSDR COEA2020070704946Master Cylinder · failedFLIGHT 7770, LEFT BRAKE HAD NO BRAKING ACTION, PEDAL GOES TO THE FLOOR. MAINTENANCE REPLACED THE BRAKE MASTER CYLINDER. OPS AND LEAK CHECKED GOOD.Jul 6, 2020 · N946FX · Cessna 208BSDR 2020FA0000287Nut · looseLEFT BRAKE PEDAL DID NOT PROPERLY ACTUATE BRAKES. PEDAL WAS SOFT AND APPLIED LITTLE TO NO BRAKING ACTION ON LEFT BRAKE. CORRECTIVE ACTION. JAM NUT ON HYDRAULIC ELBOW TO BRAKE MASTER CYLINDER LOOSE. TIGHTEN JAM NUT TO ELBOW. NO LEAKS NOTED ON BRAKE MASTER CYLINJun 5, 2020 · N208CE · Cessna 208BSDR O2GA2020032001Master Cylinder · leakingTHE CREW EXPERIENCED A LEFT MAIN LANDING GEAR BRAKE ISSUE DURING TAXI. POST INSPECTION LEFT MAIN TIRES WERE FLAT SPOTTED. MAINTENANCE REPLACED THE #1 AND #2 WHEEL/ TIRE AND BRAKE ASSEMBLIES. PILOT SIDE LEFT BRAKE MASTER CYLINDER WAS ALSO REPLACED. SYSTEM AND TMar 14, 2020 · N868UP · Beech B300SDR 5JGA2020030600000Master Cylinder · failedTHE PILOT EXPERIENCED A TOTAL FAILURE OF THE LEFT BRAKE SYSTEM DURING LANDING, NO EXTERNAL LEAKS WERE DETECTED FOLLOWING INSPECTION AND THE RESERVOIR WAS FULL, AIR WAS NOTED IN THE RESERVOIR IMMEDIATELY DURING THE BLEEDING PROCEDURE.Mar 6, 2020 · N9202Y · Piper PA31P350SDR AALA202001149014Master Cylinder · defectiveAIRCRAFT WAS GROUNDED: CAPT LEFT BRAKE PEDAL FEELS SPONGY. REMOVED AND REPLACED LEFT BRAKE CONTROL MASTER CYLINDER IAW AMM 32-43-12-000-001-A.Jan 13, 2020 · N661AW · Airbus A320232SDR SWIA2020021448453Attach Bracket · crackedLH MLG W/W HYDRAULIC PRESSURE TRANSDUCER ATTACH BRACKET AT LWR SURFACE OF PRESSURE FLOOR SKIN, BROKEN. (C-CHECK) RO 2/10/2020 REMOVED AND REPLACED ATTACH BRACKET FOR PRESSURE TANSDUCER LH MLG W/W IAW CRJ200 SRM. P/N:MS20470AD5-6 TAG:B15674. P/N:601R7526Dec 29, 2019 · N978SW · Cndair CL6002B19SDR SWIA2020021448452Attach Bracket · crackedRH MLG W/W HYDRAULIC PRESSURE TRANSDUCER ATTACH BRACKET AT LWR SURFACE OF PRESSURE FLOOR SKIN, BROKEN. (C-CHECK) RO 2/10/2020 REMOVED AND REPLACED ATTACH BRACKET FOR PRESSURE TRANSDUCER RH MLG W/W IAW CRJ200 SRM. P/N:MS20470AD5-6 TAG:B15674 P/N:601R75262-Dec 29, 2019 · N978SW · Cndair CL6002B19SDR YADA20191223001Master Cylinder · cavitatesCAPT AND FO LEFT BRAKE PEDAL UNRESPONSIVE.Dec 18, 2019 · N110AX · Beech 1900CSDR HYIA20191112004O-Ring · leakingPILOT REPORTED RIGHT BRAKE FAILURE. MAINTENANCE INSPECTED AND FOUND AN O-RING IN THE RIGHT MASTER CYLINDER BLEEDING BY. RE-SEALED THE RIGHT MASTER CYLINDER WITH NO FURTHER DEFECTS NOTED.Nov 8, 2019 · N2748Y · Cessna 402C
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