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 98ZZZX4088Valve · leakingMDW - DURING P/F, FOUND NR 2 ENGINE TRANSLATING COWL (11 O'CLOCK) WITH EVIDENCE OF HEAT DAMAGE. FURTHER INSPECTION REVEALED THE HIGH PRESSURE (PNEUMATIC) SHUT-OFF VALVE WAS LEAKING. TRANSLATING COWL AND PNEUMATIC VALVE WERE REPLACED, OPERATIONS CHECKED SYSTESDR UF6A980710Valve · failedSBN - FLT 5764 - AFTER TAKEOFF, WHEN BLEEDS ARE SELECTED ON NR 1 ENGINE, TORQUE DROPPED TO 70 PERCEN, NL 92 PERCENT, NH 90 PERCENT. MAINTENANCE REMOVED AND REPLACED NR 1 HP BLEED VALVE. SYSTEM OPS CHECKED GOOD. (M)SDR 98UAL900309Pin · failedCREW REPORTS THAT NR 1 ENGINE EXHAUST GAS TEMPERATURE (EGT) IS 35 DEGREES HIGHER THAN NR 2 ENGINE EGT AND CLIMBING. FUEL FLOW ON NR 1 IS 800 PPH GREATER THAT NR 2. RETURNED TO MIA. ENGINE REPLACED AT MIA. FOUND 2.5 BLEED VALVE BELLCRANK PIVOT PIN FAILED. SDR 99ZZZX551Valve · brokenON DESCENT, RIGHT ENGINE BEGAN TO SURGE WITH POWER LEVER MOVEMENTS. SHUT DOWN ENGINE FOR PRECAUTIONARY MEASURES AND LANDED ON ONE ENGINE. REMOVED AND REPLACED BLEED VALVE. OPS CHECK OK.SDR HEEA0014851Valve · faultyBLEED VALVE NOT READING CORRECTLY. TIME SINCE REPAIR 0:00.SDR COEA9802711Bleed Valve · failedPILOT REPORTS AS HE WAS CLIMBING THROUGH 7,000 FEET, 10 MILES NORTH OF THE MFR AIRPORT, HE NOTICED 200 POUND DROP IN TORQUE AND 40 DEGREE RISE IN ITT. AT THIS TIME, PILOT ELECTED TO RETURN TO MFR. NO EMERGENCY WAS DECLARED. MAINTENANCE TROUBLESHOT THE SYSTESDR CA980707007Valve · malfunctioned(CAN) AFTER START WHEN NR 2 ENGINE BLEED WAS SELECTED ON, SMOKE WAS GENERATED IN THE CABIN. INSPECTION FOUND GROOVES IN THE P2.5/03 SWITCHING VALVE AND VALVE COVER. THE PARTS WERE REPLACED. THE ENGINE GROUND RUN SERVICEABLE AND THE AIR QUALITY WAS RESTORED.SDR HEEA0014570Bleed Valve · faultyBLEED VALVE POPPING AT HIGH TORQUE.SDR COMA9810131Bleed Valve · malfunctionRIGHT HAND BLEED AIR OVERHEAT WARNING DURING FLIGHT. REPLACED THE HIGH PRESSURE BLEED VALVE.SDR HAI00000002Bleed Valve · failedENGINE FAILED POWER ASSURANCE CHECK DURING TEST FLIGHT FOLLOWING INSTALLATION OF ENGINE FOLLOWING EXTENDED MAINTENANCE INCLUDING BLEED VALVE OVERHAUL. INSTALLED REPLACEMENT OVERHAULED BLEED VALVE AND ENGINE TESTED AT +10%SDR 98ZZZX2096Valve · stickingENGINE NOT MAKING POWER. BLEED VALVE STICKING. SENT FOR REPAIR EVALUATION. REF: SN FF35627. CONTROL NR 98-5-2.SDR MALA976117Bleed Valve · failedDURING FLIGHT, THE RIGHT BLEED FAILED TO OPEN WHEN BLEED SWITCH SELECTED TO AUTO POSITION, WILL OPEN AT LOW POWER SETTING BUT AUTO COARSEN WHEN POWER ADVANCED. AIRCRAFT RETURNED TO DTW. MAINTENANCE REPLACED THE RIGHT BLEED VALVE. RAN AC AND OPS AND SECURITYSDR TC8A98019Prbc Valve · dirtyNR 2 ENGINECOMPRESSOR STALL DURING TAKEOFF, REJECTED TAKEOFF AT 95 KTS. INSPECTED, CLEANED AND LUBED NR 2 PRBC VALVE. PERFORMED HIGH POWER RUN IAW 71-00.SDR WRLA98080Relay · corrodedDURING INITIAL TAKEOFF ROLL, NR 3 ENGINE EXPERIENCED HIGH EGT (661 DEGREES CELSIUS). FLIGHT CREW ELECTED TO ABORT TAKEOFF (80 KNOTS). AIRCRAFT RETURNED TO GATE WITHOUT FURTHER INCIDENT. MAINTENANCE PERSONNEL FOUND 2.95 BLEED VALVE STUCK IN THE OPEN POSITIONSDR CA980424022Valve · failed(CAN) ENGINE HIGH STAGE EICAS MESSAGE CAUSED THE FLIGHT CREW TO COMPLETE QRH CHECKLIST AND SELECT NR 1 ENGINE BLEED TO OFF. APPROXIMATELY ONE HOUR LATER, CREW NOTICED CABIN ALTITUDE AT 10,000 FEET RISING SLOWLY. DESCENT INITIATED AND NORMAL PRESSURIZATION RESDR CA980424005Valve · failed(CAN) ENGINE HIGH STAGE EICAS MESSAGE CAUSED FLIGHT CREW COMPLETE QRH CHECKLIST AND SELECT NR 1 ENGINE BLEED TO OFF. APPROXIMATELY ONE HOUR LATER, CREW NOTICED CABIN ALTITUDE AT 10,000 FEET RISING SLOWLY. DESCENT INITIATED AND NORMAL PRESSURIZATION RECOVERESDR 98ZZZX1618Bleed Valve · failedENGINE WOULD NOT MAKE POWER. PERFORMANCE RUN FOUND ENGINE RUNNING WITH EXCESSIVELY HIGH TOT. BLEED VALVE REPLACED, PERFORMANCE CHECK OK, ACFT RETURNED TO SERVICE. CNTRL NR 98-4-6.SDR 9805829915Prbc · malfunctionedAS TAKEOFF POWER WAS APPLIED, THE LEFT ENGINE EXPERIENCED AN UNKNOWN NOISE. CREW ABORTED TAKEOFF AND RETURNED TO THE GATE. MAINTENANCE REPLACED THE LEFT ENGINE PRBC, OPERATIONAL CHECK OK.SDR 98UAL900118Bleed Air Valve · failedAIRCRAFT EXPERIENCED BLEED TRIP RESULTING IN CABIN ALTITUDE RISING ABOVE 10,000 FEET. AIRCRAFT WAS IN CRUISE AT 31,000 FEET. CAPTAIN DECLARED AN EMERGENCY FOR IMMEDIATE DESCENT. DESCENDED TO 20,000 FEET AND PRESSURE RETURNED TO NORMAL. CONTINUED TO DESCEND SDR CA980317068Bleed Valve · stuck(CAN) BLEED VALVE CLOSING LATE AS IF STICKING IN OPEN OR PARTIALLY CLOSED POSITION. CLOSED INDICATION, LIGHT ON PANEL, NOT ILLUMINATING UNTIL APPROXIAMTELY 99 PERCENT NG.SDR UF6A980205Bleed Valve · failedORD - FLT 5708 - IN CLIMB, ITT AND NH WERE APPROACHING RED LINE ON LEFT ENGINE. PULLED POWER LEVERS BACK AS TO NTO EXCEED LIMITS. MAINTENANCE INSPECTED SYSTEM AND FOUND HANDLING BLEED VALVE AT FAULT. REMOVED AND REPLACED HANDLING BLEED VALVE AND SERVO VALVESDR CA980330019Bleed Valve · faulty(CAN) DURING CLIMB THE NR 1 ENGINE WAS TEMPERATURE LIMITED. THE NR 1 ENGINE POWER LEVER WAS STAGGERED 1 INCH BEHIND ITS NORMAL POSITION. FLIGHT CONTINUED AT REDUCED POWER TO NEXT AVAILABLE AIRPORT. NO FAULT FOUND ON GROUND RUN, BOTH BLEED VALVES (P/NS 3100922SDR AU980077Diaphragm · failed(AUS) ENGINE WOULD ONLY PRODUCE 40PSI TORQUE DURING TAKEOFF. GROUND INVESTIGATION FOUND THAT THE COMPRESSOR BLEED VALVE DIAPHRAGM WAS HOLED.SDR JBXA980030Bleed Valve · closedRDU - FLT 17 - IN CLIMB, PACKS PRESSURE CONTROLLER PACK FAULTED, COULD NOT RESET, RETURN TO RDU. PERFORMED BITE CHECK ON PRESSURE CONTROLLER FAULTED DUE TO NR 2 ENGINE BLEED VALVE CLOSED. (M)SDR AU980006Bleed Valve · malfunction(AUS) LH ENGINE BLEED VALVE DIRTY CAUSING THE BLEED VALVE TO STICK WHEN CLOSING RESULTING IN COMPRESSOR STALLS. AIRCRAFT OPERATES FROM UNSEALED AIRSTRIPS.SDR 9722533216Vbv Assy · malfunctionedDURING TAKEOFF ROLL, NR 1 ENGINE COMPRESSOR VANE ECAM WARNING ANNUNCIATED. TAKEOFF WAS ABORTED AT 40 KTS AND THE AIRCRAFT RETURNED TO THE GATE. MAINTENANCE REMOVED AND REPLACED THE VBV ASSEMBLY AND SENSOR. GROUND RUN AND OPERATIONAL CHECK OK.SDR 9722543239Vbv Assy · malfunctionedDURING TAKEOFF ROLL, THE NR 1 ENGINE COMPRESSOR VANE ECAM WARNING ANNUNCIATED. TAKEOFF WAS ABORTED AT 70 KTS AND AIRCRAFT REUTNRED TO THE GATE. MAINTENANCE REMOVED AND REPLACED VBV ASSEMBLY AND SENSOR. RUN-UP AND OPERATIONAL CHECK GOOD.SDR CA971219019Valve · leaking(CAN) DURING CLIMB OUT EICAS MESSAGE "L ENGINE HI STAGE" WITH ASSOCIATED OVERHEAD LIGHT. PILOT VALVE REPLACED.SDR 98ZZZX336Bleed Valve · failedENGINE HAD COMPRESSOR STALL AT LOW POWER. REMOVED AND REPLACED BLEED VALVE.SDR CA971125014Bleed Valve · malfunction(CAN) NR 2 ENGINE BLEED VALVE REMAINED OPEN AFTER REVERSE THRUST SELECTED. CABIN APPEARED TO BE SMOKY. THIS CONDITION CLEARED WHEN THRUST LEVERS BROUGHT TO IDLE. CREW CYCLED CIRCUIT BREAKER AND VALVE, OPERATIONALLY CHECKED SERVICEABLE. NO FAULT FOUND.SDR GLBA97184Bleed Air Valve · dirtyMCW - ENGINE WENT TO 1800 LBS TORQUE ON APPROACH. CLEANED BLEED AIR VALVE. (M)SDR 97ZZZM1205Bleed Valve · failedON CAC - FLT 39 - A/C ABORTED TAKEOFF DUE TO COMPRESSOR STALLS ON NR 1 ENGINE, A/C RETURNED TO RAMP. ON GROUND MAINTENANCE REMOVED AND REPLACED NR 1 ENGINE BLEED VALVE PER PWA MM 75-0 PG 217, ENGINE WAS RAN AT TAKEOFF POWER AND CHECKED GOOD PER 71-00-00. A/CSDR 9719842204Prbc · malfunctionedAS TAKEOFF POWER WAS APPLIED, THE CENTER ENGINE EXPERIENCED COMPRESSOR STALLS. CREW ABORTED TAKEOFF AND RETURNED TO GATE. MAINTENANCE REPLACED THE CENTER ENGINE PRESSURE RATIO BLEED CONTOL VALVE. ENGINE OPERATIONAL CHECK OK. AIRCRAFT RETURNED TO SERVICE.SDR CA971028008Valve · faulty(CAN) AIRCRAFT REJECTED TAKEOFF DUE TO HIGH STAGE VALVE MESSAGE DURING TAKEOFF RUN. HIGH STAGE VALVE REPLACEDSDR 97ZZZX4810Bleed Valve · stickingVALVE APPARENTLY IS STICKING IN THE CLOSED POSITION AND DOES NOT OPEN UP WHEN POWER DEMAND IS DECREASED. THIS CREATES A MOMENTARY COMPRESSOR STALL RESULTING IN GUNSHOT TYPE SOUNDS COMING FROM THE EXHAUST ON THE TURBINE.SDR HEEA0011117Bleed Valve · malfunctionBLEED VALVE FLAGGING TOO SOON, POPPING AT LOW RPM.SDR AWXA9700589Bleed Valve · faultedON DESCENT APPROX 24,000, EICUS MESSAGE RIGHT ENGINE L/P PUMP FOLLOWED BY RIGHT ENGINE SHUT DOWN. RESTARTED ENGINE AT 12,000. LANDING IN PHX WAS NORMAL. CHECKED CHIP PLUGS AND FOUND OK. REPLACED BLEED VALVE CONTROL UNIT, PERFORMED AIRFLOW TEST NR 3 AND ALLSDR CA971003008Valve · failed(CAN) AIRCRAFT RETURNED TO BASE AFTER PILOT OBSERVED HIGH ITT INDICATION. AIRCRAFT WAS GROUND RUN AND ENGINE PERFORMANCE INDICATED COMPRESSOR OR COLD SECTION PROBLEM WITH THE ENGINE. ENGINE WAS GROUND RUN AGAIN WITH HEATER IN GROUND MODE WHICH USES BLEED AIR FSDR DLL13971812Bleed Valve · malfunctionedFIRE WARNING BOTH LOOPS, NR 1 ENG. REPLACED BLEED VALVE CKS GOOD.SDR 97FDEA00662Bleed Valve · failedCLIMBING THROUGH FLIGHT LEVEL 200 LOWER AFT BODY OVERHEAT LIGHT ILLUMINATED. AS PER RED TABS WE ISOLATED PROBLEM TO THE NR 1 BLEED VALVE AND OPERATED THE RIGHT PACK ONLY. OVERHEAT LIGHT EXTINGUISHED WITH THE REDUCTION OF THE NR 1 THROTTLE TO IDLE. ALSO SYSTSDR CALA9701235Prbc · brokenTHE NR 3 ENGINE EGT HIT REDLINE ON TAKEOFF ROLL. REDUCING EPR TO 1.4 FAILED TO KEEP EGT OUT OF REDLINE. THE AIRCRAFT WAS RETURNED TO IAH WHERE IT LANDED WITHOUT INCIDENT. MAINTENANCE FOUND FITTING ON PRBC BROKEN. THE PRBC WAS REPLACED IAW MM 75-31-13. THESDR 97UAL900627Bellcrank Pin · failedRIGHT ENGINE OVER TEMPERATURE DURING REDUCED POWER TAKEOFF. AT LEVEL OFF, TRIED TO BRING POWER BACK BUT TEMPERATURE WOULD RISE AGAIN. *S/D* REPLACED NR 2 ENGINE. FOUND 2.5 BLEED VALVE BELLCRANK (P/N 51D125) WITH PIVOT PIN BROKEN (51D271). ENGINE SENT TO PSDR P5CA9701399Prbc · failedABORTED TAKEOFF AT LOW SPEED 100 KIAS, UNABLE TO MAINTAIN TAKEOFF POWER AT 1.43 ON NR 1 ENGINE WITHOUT EXCEEDING MAX EGT, EGT AT 932 DEGREES FOR 14 SECONDS. VISUALLY INSPECTED ENGINE AND PERFORMED BORESCOPE PER BAC MM 72-50-0, NO ABNORMAL CONDITIONS. DURING SDR 97ZZZX3533Bleed Valve · defectiveSVMI/MDSD - FLT 52 - ON CA FLIGHT, ABORTED TAKEOFF DUE TO NR 1 ENGINE COMPRESSOR STALLS. ON GROUND, MAINTENANCE FOUND NR 1 ENGINE BLEED VALVE DEFECTIVE. NR 1 ENGINE BLEED VALVE REPLACED PER MM 75-0-21. OPS CHECKED GOOD. AIRCRAFT RELEASED INTO SERVICE. (X)SDR MASA97048Bleed Air Valve · dirtyDEN/RKS - FLT 7706 - DURING CLIMB-OUT, THE NR 2 ENGINE LOST POWER. THE CREW SHUT DOWN THE ENGINE AS A PRECAUTIONARY MEASURE. THE CREW DECLARED AN EMERGENCY AND RETURNED TO DEN WITH NO FURTHER INCIDENTS. MAINTENANCE CLEANED THE BLEED AIR VALVE AND TEST FLEW SDR 9713949983Prbc · malfunctionedDURING CLIMB, THE LEFT ENGINE EGT INDICATION WAS WITHIN LIMITS BUT INDICATED 100 DEGREES HOTTER THAN THE RIGHT ENGINE EGT. CREW ELECTED TO RETURN TO MEM. MAINTENANCE REPLACED THE LEFT ENGINE PRBC AND PERFORMED A JET CALIBRATION TEST OF THE RIGHT AND LEFT ENGSDR USAASB97186Bleed Valve · failedMCI - FL 2160 - ON T/O ROLL, THE NR 2 ENG HAD ABNORMAL LOW EPR AND N1 READINGS AND VERY HIGH EGT. FUEL FLOW AND N2 WERE NORMAL. EXCEEDING 100 KNOTS, CAPT ELECTED TO CONTINUE TAKEOFF. DURING CLIMB-OUT, CREW PULLED BACK ON POWER AND READINGS CONTINUED. CAPT SDR 97UAL900492Bleed Valve · openENGINE PRESSURE RATIO FLUCTUATED AT LEAST 0.41 (FROM 1.40 TO 0.99) TWICE AS AIRCRAFT LEVELED OFF FROM CLIMB. ENGINE PRESSURE RATIO, FUEL FLOW AND RPM MOVE TOGETHER. AFTER REDUCING ALTITUDE AND CLOSING NUMBER 2 ENGINE BLEED, FLUCTUATION STOPPED AND REST OF FSDR CA970626011Bleed Valve · intermittent(CAN) BLEED VALVE CLOSING INTERMITTENTLY.SDR CA970620004Bleed Valve · failed(CAN) BLEED VALVE DID NOT OPERATE FOLLOWING INSTALLATION. BENCH TEST CONFIRMED INTERNAL FAILURE. WHEN POWER APPLIED, VALVE BECAME VERY HOT.
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