JASC 7532
Service difficulty reports · 1,774
Reports filed under 7532 · Compressor Bleed 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 = '7532' 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 = '7532' 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 CA991007051Tachometer · faulty(CAN) TACHOMETER BOX TESTED AND FOUND FAULTY, 7.3 TSI.SDR SWAA990839Bleed Valve · failedABORTED TAKEOFF, NR 2 ENGINE SLOW TO ACCELERATE, MAX N1 WAS 76 PERCENT TAKEOFF ABORTED AT 90 KNOTS. REMOVED AND REPLACED VARIABLE BLEED VALVE MOTOR AND MASTER BLEED VALVE (P/N 10042AV) PER MM.SDR MALA976449Bleed Valve · failedLEFT BLEED FAULT LIGHT ILLUMINATED IN FLIGHT. FOLLOWED QRH AND CLOSED LEFT BLEED VALVE, WITH LEFT BLEED VALVE CLOSED, LEFT BLEED FAULT LIGHT ILLUMINATED FOR ABOUT 3 SECONDS, ROUGHLY EVERY 4 MINUTES. MAINTENANCE REPLACED LEFT PRESSURE BLEED SWITCH. ALL CHECKSDR COMA9910070Valve · malfunctionedSMOKE IN COCKPIT COMING FROM AIRCRAFT VENTS. REPLACED THE LEFT ENGINE 2.5 SWITCHING VALVE.SDR PLGA990427Bleed Valve · stickingBOS - FLT 6429 - AFTER DEPARTURE FROM BOS, CREW GOT A RIGHT AIR VALVE FAIL LIGHT. AIRCRAFT DIVERTED BACK TO BOS AND LANDED WITHOUT INCIDENT. MAINTENANCE REPLACED THE ANTI-ICE START BLEED VALVE WHICH WAS STICKING, AND THE AIR VALVE FOR PRECAUTIONARY REASONS. SDR P2EA99164Prsov · malfunctionedATL - FLT 406 - NO EMERGENCY DECLARED, LANDING UNEVENTFUL. DESCENDING THROUGH 15,000 FEET, THROTTLES NEAR IDLE, A LOUD BOOM HEARD IN COCKPIT AND CABIN IN THE AIRCONDITIONING SYSTEM. THE LEFT DUCT OVERHEAT LIGHT AND MASTER CAUTION/OVERHEAD LIGHT CAME ON. QRHSDR HEEA061596Bleed Valve · malfunctionedENGINE OSCILLATES.SDR HEEA061595Bleed Valve · malfunctionedENGINE OSCILLATES.SDR AU990420013Bleed Valve · stuck(AU) NR 3 ENGINE BLEED SHUTOFF VALVE WAS STUCK CLOSED. THE VALVE WAS REPLACED.SDR CA990412004Bleed Valve · failed(CAN) AFTER TAKEOFF, THE FLIGHT CREW WAS UNABLE TO OPEN THE NR 2 ENGINE BLEED SHUT-OFF VALVE. THE AIRCRAFT RETURNED TO ITS POINT OF DEPARTURE AND MADE AN UNEVENTFUL LANDING. MAINTENANCE REPLACED THE VALVE AND THE AIRCRAFT RETURNED TO SERVICE.SDR CA990330058Bleed Valve · failed(CAN) CREW REPORTED ENGINE SURGING THROUGH 1,500 POUNDS OF TORQUE. SURGE WOULD NOT OCCUR UNLESS THE POWER WAS REDUCED BELOW 1,500 POUNDS TORQUE AND THEN ADVANCED THROUGH 1,500 POUNDS TORQUE. MAINTENANCE FOUND THE COMPRESSOR BLEED VALVE STICKING AT 1,500 POUNSDR CA990430056Pin · loose(CAN) DURING LANDING ROLLOUT, WHILE IN REVERSE, THE NR 1 ENGINE FLAMED OUT. ATTEMPTS TO RESTART THE ENGINE AT THE GATE RESULTED IN A HUNG START. BORESCOPE OF THE ENGINE REVEALED SEVERE HP TURBINE DAMAGE, BLADES REDUCED TO STUBS. ENGINE STRIP CONFIRMED HP1SDR 99UAL900138Actuator · failedON CLIMBOUT AT SFO OUT OF 3000 FT, NR 1 ENGINE STARTED AUDIBLE SURGING WITH EPR FLUX 1.41 TO 1.50, N1 FLUX 91-93 PERCENT, AND EGT RUNNING 60 DEG HIGHER THAN NR 2 ENGINE. CONTINUED SURGING WITH AUTOTHROTTLES ON OR OFF. NO SPLIT ON DUCT PRESSURE. AT LEVEL OFF ASDR CA990927028Bleed Valve · malfunctioned(CAN) BLEED VALVE NOT FUNCTIONING PROPERLY.SDR 99UAL900076Solenoid · stickingNR 2 ENGINE EXPERIENCED COMPRESSOR STALL SEVERAL TIMES DURING DESCENT FROM FLIGHT LEVEL 40.5 TO 24.0. *S/D* SURGES, WHICH WERE RECOVERABLE, WERE ATTRIBUTED TO THE 2.9 STABILITY BLEED VALVE NOT OPENING WHEN COMMANDED. REPLACED 2.9 BLEED CONTROL SOLENOID (P/NSDR COMA9910015Valve · malfunctionedAIR CONDITIONING SYSTEM EMITS SMOKE. COULD NOT DUPLICATE DISCREPANCY. REPLACED THE RIGHT HAND ENGINE P2.5/3 SWITCHING VALVE FOR TROUBLESHOOTING.SDR HALA9900013Bleed Valve · failedLAX - FLT 1 - NR 1 PNEUMATIC HI TEMP LIGHT CAME ON IN CLIMB-OUT. PERFORM RED BOX ITEMS AND FOLLOWED PROCEDURE FOR ABNORMALS. REMOVED AND REPLACED NR 1 ENGINE H/P BLEED VALVE. (M)SDR AU981695Diaphragm · damaged(AUS) SMALL HOLES FOUND IN THE MOVING SECTION OF THE ENGINE BLEED VALVE DIAPHRAGM. PART TC: 247.SDR 99ZZZX414Bolt · stretchedUPON DISASSEMBLY OF ENGINE FOR METAL, CHECKED BOLT TIGHTNESS BY MOVING COVER AND BODY ASSY. ACTUAL TORQUE ON BOLTS WAS ONLY 15 INCHES/POUNDS. THREE EACH BLEED VALVE COVER BOLTS WERE NOT TORQUED TO SPECS FROM FACTORY OR BOLTS ARE STRETCHING AFTER ASSEMBLY ANDSDR C2XA98CL082Bleed Valve · failedCLE - FLT 4052 - THE CREW REPORTED THAT THEY RECEIVED A LEFT BLEED LEAK WARNING AFTER TAKEOFF. THE AIRCRAFT RETURNED TO THE FIELD WITHOUT FURTHER INCIDENT. MAINTENANCE INSPECTED THE AIRCRAFT THEN REMOVED AND REPLACED THE LEFT BLEED SHUTOFF VALVE IAW EMB-145 SDR AU981630Valve · failed(AUS) ON TAKEOFF WITH APU RUNNING AND ENGINE BLEEDS CLOSED, THE LT BLEED (ENGINE) CLOSED LIGHT WAS NOT ON. DURING GROUND CHECKS, THE LT BLEED AIR SHUT/OFF VALVE WAS REPLACED DUE TO A SUSPECTED INTEGRAL FAULTY MICROSWITCH.SDR ARWA981207Bleed Valve · malfunctionedAFTER ROTATION WITH ANTI-ICE ON, NR 4 ENGINE HAD A COMPRESSOR STALL. ALL PARAMETERS FOR REMAINDER OF FLIGHT NORMAL. REMOVED AND REPLACED NR 4 ENGINE SURGE BLEED VALVE, RT AND LT, IGV ANTI-ICE VALVE, GROUND OPERATION CHECK NORMAL IAW M/M 75-20-3, 75-10-5 AND SDR VNAA9812007Bleed Valve · failedTHE AIRCRAFT RETURNED TO THE GATE AFTER A LEFT HAND BLEED FAIL WARNING MESSAGE. MAINTENANCE INSPECTED AND REPLACED THE LEFT HAND LOW PRESSURE BLEED VALVE, IN ACCORDANCE WITH DORNIER MAINTENANCE MANUAL 36-11-07. OPERATIONAL CHECKS WERE COMPLETED, AND THE AIRCSDR CA990311063Diaphragm · torn(CAN) DURING CLIMB,THERE WAS A NOTICEABLE POWER LOSS, HIGH T5, HIGH FUEL FLOW, WITH AN INCREASED NG. THE AIRCRAFT RETURNED TO BASE. POST-FLIGHT INSPECTION FOUND THE BLEED VALVE DIAPHRAGM TORN. THE BLEED VALVE DIAPHRAGM PISTON SEAT BUSHING AND COVER WERE REPSDR 98ZZZX4738Valve · failedVALVE DOES NOT CLOSE COMPLETELY. REMOVED AND REPLACED.SDR CA981216010Valve · failed(CAN) AS SOON AS EPR WAS SELECTED ON TAKEOFF ROLL AND TAKEOFF THRUST WAS ATTAINED, A LEFT HAND HIGH STAGE EICAS MESSAGE WAS RECEIVED. TAKEOFF WAS ABORTED. QRH ACTION AND AIRCRAFT RETURNED TO THE GATE. ITEM WAS DEFERRED PER MEL AND FLIGHT CONTINUED WITHOUT FSDR AU981523Valve · failed(AUS) COMPRESSOR BLEED VALVE DIAPHRAGM RUPTURED. PART TC: 420.SDR CA981216009Valve · failed(CAN) AS SOON AS EPR WAS SELECTED ON TAKEOFF ROLL AND TAKEOFF THRUST WAS ATTAINED, A LEFT HAND HIGH STAGE EICAS MESSAGE WAS RECEIVED. TAKEOFF WAS ABORTED. QRH ACTION AND AIRCRAFT RETURNED TO THE GATE. ITEM WAS DEFERRED PER MEL AND FLIGHT CONTINUED WITHOUT FSDR TC8A98078Prbc · dirtyON T/O ROLL AT 110 KTS, NR 2 ENGINE COMPRESSOR STALLED, ABORTED TAKEOFF. CHECKED BRAKES PER GOM. CLEANED AND LUBED PRBC VALVE. PERFORMED FLAG CHECK IAW MM 75-30-3. PERFORMED VISUAL INSPECTION OF INTAKE EXHAUST, NO DEFECTS NOTED.SDR COAM9860336Control Unit · malfunctionedANTI-ICE DUCT WARNING MESSAGE. COULD NOT DUPLICATE DISCREPANCY. REPLACED BLEED CONTROL UNIT FOR TROUBLESHOOTING.SDR TC8A98075Prbc Valve · failedNR 2 ENGINE COMPRESSOR STALL ON T/O ROLL AT APPROX 60 KTS. REPLACED PRBC VALVE IAW MM 75-30-1 DUE TO FOUND STUCK. INSPECTED ENGINE, FOUND INTAKE/TAILPIPE CLEAN. BORESCOPED ENGINE IAW PW MM 72-00. RUN UP CHECK COMPLETED BY CREW. ENGINE OPERATION ALL NORMALSDR HEEA0016544Valve · leakingVALVE MADE ENGINE HOWL. TESTED BY ACCESSORY SHOP AND UNIT LEAKED AT THE SPLITLINE. UNIT ALSO LEAKED AROUND PISTON AREA, INDICATING A RUPTURED DIAPHRAGM.SDR AU981344Diaphragm · damaged(AUS) ENGINE BLEED VALVE DIAPHRAGM SPLIT. PART TC: 1,622.SDR 98UAL900477Bleed Valve · failedRIGHT HAND PACK BECAME INOPERATIVE. *S/D* RIGHT HAND PACK TRIPPED OFF AND COULD NOT BE RESET DUE TO NR 2 HIGH STAGE BLEED VALVE FAILING IN THE OPEN POSITION. REPLACED THE NR 2 HIGH STAGE BLEED VALVE.SDR VTZA98285Valve · failedFLT 6700 - IAD-BNA - DURING CRUISE, AIRCRAFT MADE AN UNSCHEDULED LANDING DUE TO 10 TH STAGE BLEED AIR SHOWS PSI WITH VALVE CLOSE. AIRCRAFT RETURNED TO GATE WITH NO FURTHER PROBLEMS. MAINTENANCE INSPECTED AND GROUND RAN AIRCRAFT AND COULD NOT DUPLICATE PROBLESDR HEEA0015982Bleed Valve · malfunctionedLOW POWER ENGINE BLEED VALVE MALFUNCTIONED.SDR QXEA9801204Valve · malfunctionPDX - STRONG ACRID SMELL NOTICED FROM THE VENTILATION SYSTEM. REPLACED THE P2.5/P3 SWITCHING VALVE. OPERATIONAL CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE.SDR CA990111015Bleed Valve · contaminated(CAN) BLEED VALVE BUTTERFLY VALVE WAS FOUND TO BE OUT OF RIG POSSIBLY SINCE OVERHAUL. THE RACK AND PINION RIGGING OF THE SECTOR GEAR WAS OUT BY ONE TOOTH RESULTING IN NON-PERPENDICULAR CONDITION TO THE AIR FLOW. INTERNAL COMPONENTS OF THE VALVE VERY DIRTY CONSDR CA980916009Valve · damaged(CAN) AFTER START, WHEN NR 2 ENGINE BLEED AIR WAS SELECTED ON, SMOKE APPEARED IN THE CABIN. ENGINE AIR SWITCHING VALVE WAS FOUND GROOVED. THE VALVE WAS REPAIRED AND REINSTALLED.SDR TC8A98053Bleed Valve · replacedMULTIPLE COMPRESSOR STALLS ON CLIMBOUT, 6,000 FT ON NR 1 ENG. REMOVED AND REPLACED NR 1 PRBC VALVE, OPS CHECKS OK IAW 75-30-3.SDR CA980827010Bleed Valve · sticking(CAN) PILOT REPORTED NR 2 ENGINE PARAMETERS BEGAN TO FLUCTUATE DURING SHORT FINAL. POST-FLIGHT INSPECTION FOUND THE COMPRESSOR BLEED VALVE STICKING. THE VALVE WAS REPLACED AND THE ENGINE WAS GROUND RUN SERVICEABLE.SDR 98UAL900398Pin · failedUNABLE TO OBTAIN CLIMB THRUST ON NR 1 ENGINE. FLIGHT RETURNED TO ORD. NR 1 ENGINE OVERTEMP ON CLIMB POWER AT 1.15 EPR AND 620 DEGREES (C). RIGHT ENGINE WAS 1.23 EPR AT 590 DEGREES (C). REPLACED NR 1 ENGINE. CAUSE WAS ATTRIBUTED TO BROKEN 2.5 BLEED BELLCRASDR CA981125037Valve · leaking(CAN) ENGINE FAILING THE POWER CHECKS. THE BLEED VALVE DIAPHRAGM WAS LEAKING.SDR VNAA9808013Bleed Valve · failedDURING THE TAXI FOR TAKEOFF, A HIGH PRESSURE BLEED SYSTEM FAIL WARNING MESSAGE ILLUMINATED. THE AIRCRAFT RETURNED TO THE GATE. OUTSTATION MAINTENANCE INSPECTED AND DEFERRED THE LEFT HAND ENGINE HP BLEED SYSTEM, IN ACCORDANCE WITH THE MINUMUM EQUIPMENT LIST. SDR UPS98527321Bvcu · failedINSPECTION TYPE-N/A, RT ENG FLAMEOUT, RESTART NOT ATTEMPTED FOLLWING NORMAL APPROACH AND LANDING AFTER THRUST REVERSER STOW. PERFORMED BITE TEST PROCEDURE PER MM 75-32-OOP201, FOUND RT ENG BVCU FAULTS. REPLACED BVCU FLT CREW RAN ENG GROUND IDLE. CHECK PERFOSDR VNAA9807012Bleed Valve · failedDURING THE TAXI OUT, THE AIRCRAFT RETURNED TO THE GATE ON TWO OCCASIONS FOR ECU FAIL WARNING MESSAGES. THE FIRST GATE RETURN, MAINTENANCE INSPECTED AND REPLACED THE LEFT HAND 1.8 SENSOR, (P/N 8720194), AND THE LEFT HAND NP SENSOR, (P/N 8720190). OPERATION CSDR HEEA0015323Valve · failedWHEN INSTALLED IN AIRCRAFT BLEED VALVE CAUSED COMPRESSOR STALL. REPLACED WITH SERVICEABLE BLEED VALVE.SDR COMA9810166Bleed Valve · malfunctionRIGHT HAND BLEED AIR OVERHEAT WARNING ON. REPLACED THE HIGH PRESSURE BLEED VALVE.SDR 98ZZZX3362Bolt · looseBLEED VALVE WAS SET UP ON TEST BENCH AND A RE-ALIGNMENT OF 90 DEGREE ELBOW WAS NEEDED TO INSTALL TEST ORIFICE AND JUMPER TUBE AND NOTICED THAT UPON SLIGHT TENSION, BOLT WHICH WAS SAFTIED, MOVED. THESE BOLTS HAVE A 30 TO 35 INCH/POUND TORQUE ATTACHED AND UPON SDR 98ZZZX3359Bolts · losePRIOR TO INSTALLING BLEED VALVE ON TEST BENCH, AN INSPECTION OF ALL SAFETIES WAS ACCOMPLISHED AND FOUND 3 EACH BOLTS WERE SAFTIED BUT LOOSE. THESE BOLTS WERE IMPROPERLY TORQUED AND CAUSED A MAJOR AIR LEAK AT SPLIT LINES OF BLEED VALVE.
Back to JASC 7532