JASC 7530

Service difficulty reports · 903

Reports filed under 7530 · Compressor Bleed Control, 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 = '7530'
  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 DLL10981789Slave Ram · defectiveNR 1 THROTTLE FAILED TO DEVELOP T/O THRUST WITH HIGH N2. REPLACED NR 1 ENG MASTER AND SLAVE RAM, RAN PER PFHB TEST NR 4 ALL CKS NORMAL.Aug 29, 1998 · N722DA · Lkheed 10113851SDR 98UAL900410Hpc Vane · out of adjustRIGHT ENGINE FUEL FLOW AND EPR GAUGES STARTED SURGING PASSING THROUGH FL330 ON CLIMB. CREW ALSO FELT RIGHT ENGINE SURGING. FLIGHT DECENDED TO FL250 AND ENGINE RETURNED TO NORMAL INDICATIONS. FLIGHT RETURNED TO SFO WITH EQUIPMENT STANDING BY. *S/D* ENGINE Aug 28, 1998 · N556UA · Boeing 757222SDR CA980909014Control Unit · malfunctioned(CAN) NR 1 ENGINE SHUTDOWN IN FLIGHT DUE TO 14 STAGE DUCT AND AURAL MESSAGE. POST-FLIGHT INSPECTION FOUND NO DAMAGE TO THE LEFT HAND ENGINE PYLON DUCT. THE LEFT HAND BLEED CONTROLLER AND THE SENSING ELEMENT WERE REPLACED AND THE ENGINE WAS GROUND RUN SERVICEAug 22, 1998 · Cndair CL6002B19SDR HEEA0015637Actuator · wornFOUND PISTON PACKINGS TO BE HARD AND BRITTLE CAUSING PISTON SEALS TO RETRACT AND ALLOW AIR TO SEEP PAST THE PISTON. REPLACED PACKINGS AND SEALS WITH NEW PARTS. UNIT TESTED OK PER TEST SPEC. NR 10809-01.Aug 17, 1998 · Snias AS350B2SDR 98ZZZX3222Tube · brokenRIGHT HAND ENGINE OUTBOARD BLEED AIR VALVE P3 LINE FOUND BROKEN AT WELDED 'L' FITTING. BY VISUAL INSPECTION, SUSPECTED CAUSE IS VIBRATION AND FATIGUE AND POSSIBILITY OF FLAW IN WELD.Aug 1, 1998 · N513QS · Braero BAE1251000SDR CA980819005Sense Line · cracked(CAN) ON MEDIVAC DEPARTURE, RIGHT HAND BLEED AIR FAILURE LIGHT CAME ON SHORTLY AFTER TAKE-OFF. RIGHT ENGINE SHUT DOWN. AIRCRAFT RETURNED TO BASE. MAINTENANCE CHECK REVEALED RIGHT BLEED AIR PRESSURE ANNUNCIATOR SENSE LINE CRACKED UNDER FLOOR AT BLEED AIR MANJul 31, 1998 · Beech A100SDR 98UAL900364Lvdt · failedPOSSIBLE BIRD STRIKE ON NR 3 ENG FOLLOWED BY FLAME OUT. EGT MAX WAS ABOUT 510 DEGS. *S/D* ENGINE FLAME OUT IN DESCENT DUE TO STATOR VANE ACTUATOR LVDT FAILURE. ACTUATOR HAS NOT BEEN TESTED OR DISASSEMBLED YET.Jul 28, 1998 · N104UA · Boeing 747422SDR DL757981471Stator · failedNR 1 ENG STALLED AT V1 AND AUTO SHUT DOWN HARD CARD AND POM EMERGENCY PROCEDURES FOLLOWED RETURNED TO RUNWAY 9L. BORESCOPED OK OF 6TH STAGE LPT - 16TH STAGE HPC CKS OK, CKD WIRING BETWEEN EEC AND SVA ALL OK. REPLACED EEC AND SVA AS PRECAUTION DUE TO EICAS MSJul 14, 1998 · N641DL · Boeing 757232SDR CA980818004Valve · failed(CAN) AFTER START, WHEN NR 2 ENGINE BLEED AIR SELECTED ON, THE CABIN FILLED WITH SMOKE. THE ENGINE WAS SHUTDOWN. INSPECTION FOUND THE NR 2 ENGINE P2.5 SWITCHING VALVE COVER AND SLEEVE GROOVED. THE PARTS WERE REPLACED.Jul 8, 1998 · Dhav DHC8311SDR CA980707066Gasket · failed(CAN) DURING CLIMB AT 7,000 FEET, TWO ENGINE FIRE WARNING SYSTEMS ACTIVATED ZONE TWO. ENGINE FIRE BOTTLES BLOWN AND SHUT DOWN IAW EMERGENCY PROCEDURES, AIRCRAFT LANDED OK. BLOWN GASKET DOWNSTREAM OF THE UPPER 14TH STAGE BLEED AIR CHECK VALVE. GASKET AND CLAJun 21, 1998 · Cvac 440SDR RU3A98003Bleed Valve · saturatedSMOKE AND STRONG FUMES IN CABIN AFTER TAKEOFF. RESIDUAL B/B GAS PATH CLEANER IN BLLED AIR SYSTEM. INVESTIGATION REVEALED THE LEFT ENGINE WAS WASHED ON 5/7-98. FOLLOW MM PROCEDURES FOR COMPRESSOR WASH. (M)May 15, 1998 · N95 · Braero BAE125800ASDR REXA98089Air Valve · inopLEFT AIR VALVE LIGHT ILLUMINATED DURING CLIMB-OUT. REMOVED AND REPLACED LEFT HAND ASIBV. GROUND RUN CHECKS GOOD. (M)Apr 18, 1998 · N111PX · Saab SF340ASDR 98UAL900152Vsv Lever Arm · failedENGINE NR 2 FAILED. ENGINE SEIZED IN FLIGHT, FL 28, MAX EGT AT 790 DEGREES. FLIGHT DIVERTED TO IAD AND LANDED UNDER AMBER ALERT. *S/D* ONE STAGE 3 VSV LEVER ARM FAILED FROM FATIGUE AND CAUSED SUBSEQUENT FAILURE OF STAGE 4 COMPRESSOR BLADE AND FURTHER DOWNSApr 18, 1998 · N434UA · Airbus A320232SDR CA980430014Line · sheared(CAN) NR 2 ENGINE WOULD NOT DEVELOP FULL POWER. HP BLEED CONTROL LINE CRACKED AND SHEARED OFF AT 13TH STAGE CONNECTION.Apr 16, 1998 · Boeing 727221SDR TWAA9805001Stator Vane · liberatedBNA - FLT 505 - AT FL 270, RT ENGINE PRODUCED TWO LARGE COMPRESSOR STALLS FOLLOWED BY PARTIAL LOSS OF ENGINE POWER. DIVERTED TO BNA. ON APPROACH, EGT STARTED TO RISE AND ENGINE WAS SHUT DOWN. FOUND TURBINE FAILURE. REPLACED ENGINE. S/D: ON ENGINE TEAR DOApr 2, 1998 · N9406W · Doug DC983SDR C2XA98CL023Actuator · failedEWR - FLT 4023 - CREW REPORTED DURING CLIMB-OUT, RECEIVED A LOW N1 WARNING ON THE LEFT ENGINE. THE ENGINE WAS SHUT DOWN AS A PRECAUTION AND THE AIRCRAFT RETURN TO FIELD WITHOUT FURTHER INCIDENT. MAINTENANCE REMOVED AND REPLACED THE LEFT ENGINE COMPRESSOR VARMar 9, 1998 · N15926 · Emb EMB145SDR DL757980512Actuator · crackedDURING CLIMB-OUT, LEFT ENG WOULD NOT REACH COMMANDED CLIMB EPR N2 IND 100 FF MATCHED RT ENG EVENT RECORD PUSHED AT HIGHER ALT. LEFT ENG EPR IND CONT TO FALL OFF OIL TEMP REACHED 129. REPLACED STATOR VANE ACTUATOR AND BRACKET.Mar 3, 1998 · N647DL · Boeing 757232SDR 9803605644Stator Alt · failedDURING TAKEOFF ROLL, THE NR 2 ENGINE PRIMARY CONTROL MESSAGE ANUNCIATED AND THERE WAS NO EPR INDICATION. TAKEOFF WAS ABORTED AT 10 KNOTS AND THE AIRCRAFT RETURNED TO THE GATE. MAINTENANCE REPLACED THE NR 2 EEC STATOR ALTERNATOR.Mar 1, 1998 · N544US · Boeing 757251SDR CALA9800207Sense Line · crackedTHE NR 2 ENGINE LOST PARTIAL POWER WHILE IN CRUISE FLIGHT FROM HNL TO NRT. THE EPR DROPPED FROM 1.40 TO 1.13 AND N1 DROPPED FROM 95 PERCENT TO 85 PERCENT. THE AIRCRAFT WAS RETURNED TO HNL WHERE IT LANDED WITHOUT INCIDENT. MAINTENANCE FOUND THE NR 2 ENGINE PFeb 9, 1998 · N14024 · Boeing 747238BSDR 98ZZZX900Stator · damagedDURING B-CHECK, NR 2 ENGINE INSPECTION FOUND FIRST STAGE COMPRESSOR STATOR VANE DAMAGE. ONE VANE HAD RIVETS SHEARED, VANE SHIFTED AND CAUSED DAMAGE TO ADJACENT VANE. REPLACED 1ST STAGE COMPRESSOR STATOR ASSY ON WING PER MM 72-00-21, 72-00-23, AND 72-00-33. Feb 4, 1998 · N220US · Boeing 7372H5SDR MALA975908Shutoff Valve · failedDURING CLIMB-OUT, THE LT AIR VALVE LIGHT ILLUMINATED. AIRCRAFT RETURNED TO DTW. MAINTENANCE REPLACED THE LEFT BLEED AIR SHUTOFF VALVE. ALL CHECKS GOOD.Jan 20, 1998 · N98XJ · Saab SF340ASDR 9724501234Duct · crackedDURING CLIMB TO FL390, THE NR 1 ENGINE NACELLE TEMPERATURES WERE VERY HIGH AND THE NACELLE LOOP A LIGHT ILLUMINATED. CREW FOLLOWED COM ABNORMAL PROCEDURES AND DESCENDED TO FL350 TO KEEP TEMPERATURES WITHIN LIMITS. FLIGHT CONTINUED WITHOUT FURTHER PROBLEMS. Dec 29, 1997 · N234NW · Doug DC1030SDR P5CA9701856Vane Control · failedNR 4 ENGINE HAD COMPRESSOR STALL AFTER THROTTLES RETARDED AT TOP OF DESCENT. EGT INCREASED TO 490 DEGREES. INFLIGHT SHUT DOWN ACCOMPLISHED. INFLIGHT START ATTEMPTED, LIGHT OFF EGT INCREASING, LOW N2, LOW FUEL FLOW AND EGT INCREASING TO 480 DEGREES. SHUT DDec 28, 1997 · N921FT · Boeing 747238BSDR AWXA9700663Y-Duct · failedAIR TURNBACK FOR NR 1 ENGINE OVERHEAT, SHUTDOWN IN FLIGHT. REMOVED AND REPLACED NR 1 ENGINE Y-DUCT.Nov 6, 1997 · N903AW · Boeing 7572S7SDR 9719276612Evc · malfunctionedDURING FINAL APPROACH, THE NR 1 ENGINE LOW OIL PRESSURE WARNING LIGHT ILLUMINATED WITH THE INDICATED PRESSURE AT 25 PSI AND FALLING. THE EGT INDICATED 850C AND THE ENGINE WAS SHUT DOWN. THE AIRCRAFT LANDED WITHOUT INCIDENT. MAINTENANCE INSPECTED THE ENGINE Oct 14, 1997 · N612US · Boeing 747251BSDR MALA975698Wire · brokenFLT 2592 - DURING CRUISE RIGHT ENGINE AIR VALVE LIGHT ILLUMINATED ABOUT 10 SECONDS AFTER SELECTING ENGINE ANTI-ICE ON. AIRCRAFT RETURNED TO MSP. MAINTENANCE FOUND BROKEN WIRE AT CANNON PLUG TO GARRETT VALVE. REPAIRED WIRE. RAN ENGINE, BLEED AIR VALVES. OPSOct 13, 1997 · N115XJ · Saab SF340ASDR CA971015015Valve · failed(CAN) TAKEOFF WAS ABORTED AT 100 KNOTS DUE TO BOOM HEARD AND A PARAMETER SHIFT WITH A YAW OF THE AIRCRAFT. VISUAL AND BORESCOPE INSPECTION CARRIED OUT. PRBC (PRESSURE RELIEF BLEED CONTROL) VALVE REPLACED. HIGH ENERGY STOP INSPECTION CARRIED OUT AND AIRCRAFT REOct 5, 1997 · Boeing 737275SDR C2XA97CL079Torque Tube · brokenSTL - FLT 4097 - CREW REPORTED THE RIGHT ENGINE HAD LOW N1 INDICATED. THE AIRCRAFT LANDED AT STL WITHOUT INCIDENT. MAINTENANCE INSPECTED THE RIGHT ENGINE AND FOUND THE COMPRESSOR VARIABLE VANE TORQUE TUBE BROKEN. MAINTENANCE REMOVED AND REPLACED THE RIGHT HSep 28, 1997 · N14930 · Emb EMB145SDR AWXA9700590Vsv Actuator · faultedAIR TURNBACK 15 TO 20 SECONDS AFTER TAKEOFF NR 1 ENGINE ECAM MESSAGE ENGINE NR 1 COMPRESSOR VANE. AT TOGA NR 1 ENGINE 635 TO 638. REDUCED TO CLIMB POWER AND TEMPERATURE REDUCED TO 600 TO 618. ECAM CLEARED. WARNING RETURNED AT LANDING. REMOVED AND REPLACED Sep 27, 1997 · N633AW · Airbus A320231SDR 9718059861Pressure Valve · malfunctionedAS TAKEOFF POWER WAS APPLIED, THE LEFT ENGINE EXPERIENCED COMPRESSOR STALLS. CREW ABORTED TAKEOFF AND SHUT DOWN THE LEFT ENGINE. MAINTENANCE INSPECTED THE LEFT ENGINE INLET AND REPLACED THE PRESSURE AND DUMP VALVE. ENGINE OPERATIONAL CHECK OK.Sep 25, 1997 · N770NC · Doug DC951SDR CALA9701384Bleed Controler · inoperativeTHE NR 2 ENGINE FLAMED OUT WHILE ON FINAL APPROACH. ALL APPROPRIATE CHECKLISTS WERE COMPLIED WITH AND THE AIRCRAFT LANDED WITHOUT INCIDENT. MAINTENANCE FOUND THE RT BLEED VALVE CONTROLLER TO BE AT FAULT. THE CONTROLLER WAS REMOVED AND REPLACED IAW MM 75-32-Sep 23, 1997 · N58101 · Boeing 757224SDR CA970926003Tube · failed(CAN) BLEED AIR SENSE TUBE FOUND BROKEN. 15 HOURS LATER, SENSE LINE BROKE AGAIN. 25 HOURS LATER ANOTHER LINE INSTALLED. SUBMITTER SUSPECTS THAT WHEN COMPRESSOR WAS CHANGED, IT WAS SHIMMED WRONG OR THE COMPRESSOR HAD A VIBRATION CAUSING LINE TO BREAK.Sep 18, 1997 · Bell 206BSDR COMA9760173Actuator · leakingRT ENGINE INBD GUIDE VANE ACTUATOR IS LEAKING. REPLACED ACTUATOR.Sep 16, 1997 · N938CA · Cndair CL6002B19SDR MALA975648Pressure Switch · failedFLT 3100 - AFTER TAKEOFF, THE LEFT BLEED FAULT LIGHT ILLUMINATED ON CLIMB, FOLLOWED BY LEFT BLEED CLOSED ILLUMINATING. COMPLETED QUICK REF HANDBOOK AND RETURNED TO MSP. MAINTENANCE REPLACED THE BLEED AIR PRESSURE SWITCH. OPS CHECK GOOD. (M)Sep 12, 1997 · N423XJ · Saab 340BSDR MALA975643Actuator · failedFLT 3523 - DURING CRUISE FLIGHT, THE NR 4 ENGINE WAS RUNNING HOT. AIRCRAFT RETURNED TO MSP. MAINTENANCE REPLACED BLEED BOND ACTUATOR. OPS CHECK GOOD. (X)Sep 11, 1997 · N505XJ · Bac AVRO146RJ85ASDR CALA9701319Guide Vane · separatedTHE NR 1 ENGINE LOST POWER AT FL 180 AFTER DEPARTING. THE AIRCRAFT WAS RETURNED TO IAH. MAINTENANCE REMOVED AND REPLACED THE NR 1 ENGINE. IN ADDITION, THE NR 1 AND NR 2 MLG BRAKES AND TIRES WERE REPLACED DUE TO HIGH ENERGY STOP. *S/D* SHOP TEARDOWN REVEALESep 6, 1997 · N16521 · Doug DC932SDR REXA97238Bleed Line · looseRIGHT ENGINE OVERTEMPED ON TAKEOFF. INDICATED 108 DEGREES AT 33 DEGREES CELSIUS. RIGHT TEMP INDICATED 934 DEGREES CELSIUS. SECURED LOOSE LOW PRESSURE BLEED LINE. GROUND RAN WITH AND WITHOUT CTOT, CHECKS GOOD. (M)Sep 1, 1997 · N341PX · Saab SF340ASDR CA971006001Clamp · loose(CAN) AT CLIMB 3,600 NR1 STRUT O'HEAT LIGHT CAME ON, CHECK LIST CARRIED OUT. LIGHT OUT WITH POWER REDUCED TO 1.5 EPR, CAME ON AT 1.6 EPR. FUEL DUMPED, AIRCRAFT RETURNED. CLAMP LOOSE AT 8TH STAGE BLEED CHECK VALVE.Sep 1, 1997 · Boeing 727227SDR 97UAL900632Pin · sheared2.5 BLEED DISCONNECTED FROM BLEED VALVE. ENGINE CHANGE REQUIRED. *S/D* BELL CRANK PIVOT PIN SHEARED. REPAIRED 2.5 BLEED LINKAGE. REPLACED PIVOT PIN WITH IMPROVED PIN, (P/N 510264). REPLACED BLEED VALVE SLIDER BLOCKS WITH ROLLERS.Aug 20, 1997 · N662UA · Boeing 767322SDR CALA9701230Guide Vane · crackedTHE NR 2 ENGINE EXPERIENCED POWER REDUCTION DURING CLIMBOUT. THE CREW ADVANCED THE THROTTLE TO MAINTAIN CLIMB POWER, RESULTING IN THE NR 2 THROTTLE BEING THREE KNOBS AHEAD OF NR 1 AND NR 3, WITH SLIGHTLY HIGHER EGT. THE AIRCRAFT WAS RETURNED TO EWR. THE NR Aug 18, 1997 · N76753 · Boeing 727227SDR 97ZZZX4217Valve · brokenDISCOVERED ON POST-FLIGHT INSPECTION, NR 1 ENGINE BLEED AIR FLOW CONTROL VALVE HAS A BROKEN CONTROL LINKAGE ARM. APPEARS LIKE BALL SOCKET WORN OUT. REPLACED BLEED AIR CONTROL VALVE ASSEMBLY WITH NEW UNIT OBTAINED FROM BEECH.Aug 13, 1997 · N4S · Beech B300SDR 9714756717Control Valve · failedDURING TAKEOFF ROLL, THE NR 1 ENGINE EPR LAGGED THE OTHER ENGINES AND THE EGT ROSE TO 925C. TAKEOFF EPR TARGET WAS 1.48 AND THE NR 1 ENGINE ONLY REACHED 1.40. TAKEOFF WAS ABORTED. MAINTENANCE INSPECTED THE ENGINE AND REPLACED THE LINEAR DIRECTIONAL CONTROL Jul 31, 1997 · N617US · Boeing 747251FSDR REXA97212Flow Cntrl Vlv · malfunctionedRIGHT ENGINE WON'T MAKE TORQUE. REMOVED AND REPLACED RIGHT ENGINE FLOW CONTROL VALVE. (M)Jul 26, 1997 · N301PX · Bag JETSTM3101SDR TWAA9777002Controller · wornDURING CLIMB NUMBER 2 ENGINE STALLED THEN SURGED DURING DECELERATION. ENGINE WAS SHUT DOWN. REPLACED THE ENGINE VANE AND BLEED CONTROL (EVBC). CHECK-C 5-17-97 LAX. S/D. TEST OF THE EVBC FOUND IT OUT OF LIMITS, AND CAUSED THE ENGINE SURGE.Jul 11, 1997 · N606TW · Boeing 767231SDR TWAA9776001Evbc · failedCDG - FLT 917 - DURING CLIMB AT FL 350, NR 2 ENGINE, SN 4613, EXPERIENCED COMPRESSOR STALL IN CLEAR AIR. REMOVED AND REPLACED EVBC, MFG PN 766555-7, MANUFACTURED BY HAMILTON STANDARD. OPS CHECKS NORMAL. ENGINE TOTAL TIME: 44,118 HOURS; 11,256 CYCLES. CHECJul 9, 1997 · N604TW · Boeing 767231SDR 97UAL900514Evbc · failedNUMBER 2 ENGINE COMPRESSOR STALL AT FLIGHT LEVEL 390 IN CLOUDS. IMMEDIATELY PROCEEDING STALL, ENGINE WAS AT STEADY HIGH POWER AND EXPERIENCED SLIGHT LOSS OF EPR AND STALL. ENGINE RECOVERED AND CONTINUED OPERATING. *S/D* MACH CHAMBER CONTAMINATION WITHIN THJul 7, 1997 · N609UA · Boeing 767222SDR 97UAL900502Filter · dirtyABORTED TAKEOFF AT LHR AT 90 KNOTS DUE TO RT ENGINE BLEED OFF LIGHT ILLUMINATED AND EICAS MESSAGE RIGHT ENGINE BLEED OFF. *S/D* REPLACED RH PRSOV 02 JULY. SHOP FOUND INLET FILTER COMPLETELY CLOGGED, PREVENTING VALVE FROM OPENING.Jul 2, 1997 · N658UA · Boeing 767322SDR 9712626628Evbc Filter · dirtyDURING LANDING WHILE COMING OUT OF REVERSE THRUST, THE NR 4 ENGINE RPM DROPPED TO ZERO. EGT ROSE TO 710C FOR TEN SECONDS AND OIL PRESSURE DROPPED TO ZERO. ENGINE WAS SHUT DOWN. MAINTENANCE PERFORMED AN OVER TEMPERATURE INSPECTION AND TROUBLESHOOTING PER FIM Jun 28, 1997 · N628US · Boeing 747251BSDR 97UAL900657Evbc · failedRIGHT ENGINE COMPRESSOR STALLED IN FL390. FOUND CONTAMINATION IN EVBC AIR CHAMBER. REMOVED AND REPLACED EVBC AND PERFORMED RIG CHECK.Jun 23, 1997 · N609UA · Boeing 767222SDR 97UAL900491Evbc · contaminatedRIGHT ENGINE COMPRESSOR STALLED IN FL390. *S/D* FOUND CONTAMINATION IN EVBC AIR CHAMBER. REMOVED AND REPLACED EVBC AND PERFORMED RIG CHECK.Jun 23, 1997 · N609UA · Boeing 767222
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