JASC 4930
Service difficulty reports · 1,087
Reports filed under 4930 · APU Engine Fuel and 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 = '4930' 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 = '4930' 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 AALA202111194597Apu · odorAIRCRAFT WAS GROUNDED: SMELL OF FUEL IN COCKPIT DURING CRUISE, SMELL OF FUEL IN AFT GALLEY DURING DIVERSION DESCENT. EMERGENCY WAS DECLARED AND WAS NOT OVERWEIGHT FOR LANDING. FUEL SMELL STRONGEST IN AFT GALLEY AFTER LANDING WITH BOTH ENGINES RUNNING RIGHT PACSDR ASAA2021102536427Valve · faultyUNSUCCESSFUL CSS. APU AUTO SHUT DOWN AND FAULT LIGHT DURING START AT FL330. GROUNDED - YES. ACCOMPLISHED TASKS REF B737-900 FIM 49-30 TASK 803 (G) 1 THRU 4. NO DEFECTS NOTED. APU ROTATES FREELY. DUE TO THE NATURE OF THE DISCREPANCY (MULTIPLE FAILED CSS) CW FIMSDR NACA2021092200001Ecu · unknownDISCREPANCY: APU INOP. CORRECTIVE ACTION: REMOVED AND REPLACED ECU IAW AMM 49-61-05 OPS CHECK OK, ETOPS GROUND VERIFICATION GOOD.SDR UIEA2021082201834Sensor · faultedAPU INOPERATIVE. REMOVED AND REPLACED FLOW SENSOR ON FLOW SENSE MODULE IAW AMM 49-53-08. OPS CHECK AND SELF TEST DONE IAW AMM 49-11-00 & 49-61-05. BOTH TESTS GOOD AT THIS TIME. LEAK CHECK GOOD AT THIS TIME.SDR ASAA2021081435763Actuator · faultedAPU FAULT LIGHT ILLUMINATED WHEN APU SWITCH SELECTED OFF. GROUNDED - YES. VERIFIED FAULT 49-31001 STILL SHOWING AS CURRENT IN BITE CHECK. REMOVED & REPLACED APU FUEL SHUTOFF VALVE ACTUATOR, VERIFIED P/N FOR ETOPS. BOND CHECK GOOD, OPS CHECKED GOOD X3, APU STARSDR UIEA2021080501709Warning Light · false indicationAPU FWD LPVHP PRESSURE LIGHT IS ON WHILE APU WORKING(<P>ACOMPLISHED TEST OF APU FUEL FEED SYS AS PER 28-25-00. AND OPS CK OK, NO FAULTS FOUND</P>)SDR ASAA2021071235364Fcu · faultedAPU FAILED COLD SOAKED START AT FL 36000. EGT GOT TO 1050 AT WHICH TIME "FAULT" LIGHT ILLUMINATED AND IT TERMINATED THE START ATTEMPT. NOTE: APU START WAS NORMAL ON GROUND AT BOSTON. GROUNDED - YES. REMOVED AND REPLACED APU FUEL CONTROL UNIT REF B737-800 AMM 4SDR 9JLA2021072723805Ecu · failedDURING AIRCRAFT OPERATIONS THE FLIGHT CREW REPORTED THE APU WAS INOP. THE APU FAULT WAS DEFERRED BY MEL AND THE FLIGHT CONTINUED. THE MAINTENANCE VENDOR TROUBLESHOT AND DETERMINED THAT THE APU CONTROL UNIT HAD FAILED. THE DEFECTIVE ECU WAS REMOVED AND A TESTEDSDR ASAA2021061935145Manifold · leakingAPU DRAIN MAST OBSERVED LEAKING FUEL- APU SECURED -A/C SHUTDOWN LEAK STOPPED. GROUNDED - YES. PERFORMED START UP OF APU AND FOUND PRIMARY FUEL MANIFOLD B-NUT ON THE FUEL NOZZLE AT THE 5 O'CLOCK POSITION LEAKING SIGNIFICANTLY. FOUND B-NUT TO BE SECURE. RE-SECURSDR UIEA2021060601276Relay · faultedAPU START UNSUCESSFUL AT FL 400 AT -45 DEG C AFTER 3 ATTEMPTS AT ALTITUDE. UNSUCCESSFUL ON THE GROUND AS WELL.(<P>NOTED BY MX. REMOVED AND REPLACED DC FUEL PUMP CONTROL RELAY K191. NO HELP PER FIM 28-25 FT. 806. MDDR 147790 REMAIN OPEN. PERFORMED APU BITE PER SDR ASAA2021052234880Fuel Control · leakingAPU OIL MONITORING DATA SHOWS OIL CONSUMPTION TO BE TRENDING HIGHER THAN EXPECTED. GROUNDED - YES. ACCOMPLISHED GVI OF TURBINE DUCT FOR EXCESSIVE OIL WITH VIDEO BORESCOPE THROUGH EGT PORT 1, NO OIL OR OIL STAINING NOTICED, IAW B737-800 FIM 49-95 TASK 801. WHILSDR WX0A2021052873725Bowl · leakingDIRTY MUSTY SOUR SMELL THRU 10000 RAN QRH PROCEDURES WAS UNABLE TO REMOVE SMELL UNTIL BOTH PACKS WERE OFF. ONCE BOTH PACKS WERE OFF FOR SEVERAL MINUTES THE SMELL SEEMED TO DISSIPATE. FOLLOWING AMM 49-00-00-200-812-A, .INSPECTED APU AND FOUND FUEL LEAK COMING SDR 9JLA2021060433250Valve · faultedTHE FLIGHT CREW REPORTED THAT DURING TWO TAKEOFF ATTEMPTS THE LEFT EEC FAILED WHEN THE THROTTLES WERE ADVANCED FOR TAKEOFF. THE MAINTENANCE VENDOR DETERMINED BOV/LVDT FAULTY. THE MX VENDOR REMOVED AND REPLACED THE UNIT WITH AN OVERHAULED UNIT.SDR UIEA2021050101049Filter · not reportedPER MDDR 145973 REPLACE APU FUEL FILTER.(<P>REMOVED AND REPLACED APU FUEL FILTER ELEMENT IAW AMM 49-31-04, PENDING LEAK CHECK. </P><P>PERFORMED APU OPS. CHECK IAW AMM 49-11-00. NO LEAKS FOUND.</P>)SDR UIEA2021030200440Sensor · faultyAPU INOP TRANSFERRED TO MDDR 143164 IAW MEL 49-11-01A, CAT C. PERFORMED APU BITE. IAW FIMM 49-11, FAULT 16, P2 SENSOR. REMOVED AND REPLACED P2 SENSOR. IAW AMM 49-61-04. DURING T/S FOUND APU OIL OVER SERVICED. SERVICED APU OIL TO PROPER LEVEL. IAW AMM 12-13SDR ASAA2021012233931Flow Divider · faultyFAULT LIGHT ILLUMINATED DURING APU START ATTEMPT AT FL400. SUCCESSFUL CSS ACCOMPLISHED AFTER FAULT LIGHT EXTINGUISHED. GROUNDED-YES. REMOVED AND REPLACED APU FUEL FLOW DIVIDER, REF B737-800 AMM 49-31-15. GROUND VERIFICATION SUCCESSFUL. NO LEAKS NOTED.SDR ASAA2021012133936Fault Light · false activationFAULT LIGHT ILLUMINATED DURING APU START ATTEMPT AT FL410. SUCCESSFUL CSS ACCOMPLISHED AT FL330 AFTER FAULT LIGHT EXTINGUISHED. APU STARTED OK ON GROUND ALSO. GROUNDED-YES. ACCOMPLISHED APU BITE, IAW B737-800 FIM 49 33 TASK 803 FAULT CODES 49-31295 AND 49-SDR ASAA2020121333698Fcu · faultedAPU FAILED TO START, MTX FAULT MESSAGE 49-31016. GROUNDED-YES. REMOVED AND REPLACED APU FUEL CONTROL UNIT, PER B737-800 AMM 49-31-11. OPERATIONS AND NO LEAKS NOTED.SDR CALA2020121401371Drain Line · departedPDA 2 PDA 1 REF LOG PAGE 5598554, UPON ARRIVAL IN GUA APU DRAIN MAST WAS MISSING. IAD AIRPORT AUTHORITY FOUND DRAIN MAST ON RUNWAY. REMOVED AND REPLACED APU DRAIN MAST, AS PER AMM 28-25-07.SDR UIEA2020112302449Pressure Switch · malfunctionedAPU DC PUMP ALWAYS ON PER MX MESSAGE. TRANSFERRED TO DMI 138340, IAW MEL 28-25-01, CAT C. REMOVED AND REPLACED DC PUMP FUEL PRESSURE SWITCH, PER AMM 28-25-03. MESSAGE CLEARED,SDR P5CA2020110900375Control Unit · malfunctionedAPU AUTO SHUT DOWN WHEN GPU POWER TRANSFER, IAW AMM 49-61-05. REPLACED APCU AND APCU BITE TEST AND SELF TEST OK AND APU OPERATION CHECK NORMAL.SDR AALA202010189002Control Unit · leakingAIRCRAFT WAS GROUNDED. CREW REPORTED ODOR IN THE CABIN. ACCOMPLISHED TASK CARD 26L00021001 AND FOUND OIL IN THE APU PLENUM. SUPPLEMENTAL INFORMATION: REMOVED AND REPLACED FUEL CONTROL UNIT, IAW AMM 49-32-11, LEAK CHECK GOOD. NO OIL LEAK NOTED AT THIS TIME.SDR CALA2020100901171Exciter · inoperativeAPU AUTOSHUT DOWN DURING START. REPEAT ISSUE. PLACED ON DEFFERAL DISPATCH DESK: 28 NAME: BB DATE: 28-SEP-20- NOC DESK: 320 NAME: RUPP DATE: 28-SEP-20. OK TO PLACE APU ON MEL 4910B AND COMPLY WITH ALL MAINTENANCE PROCEDURES, AS REQUIRED. PLACED ON DEFFERAL.SDR ASAA2020092533274Fuel Nozzle · defectiveAPU TREND DATA SHOWS CT5ATP TEMP IS AT OR ABOVE THE THRESHOLD 605 DEGREES. ETOPS SIGNIFICANT SYSTEM. TASK AFFECTS APU ON DEMAND IN-FLIGHT START CAPABILITY. UPON COMPLETION, CONTACT MAINTENANCE CONTROL AND REPORT THAT THIS TASK HAS AFFECTED APU IN-FLIGHT STASDR SWIA2020091452485Fuel Sys · leakingJET FUEL SMELL COMING FROM THE VENTS IN FLIGHT DECK AND MADE OUR EYES WATER. THIS HAPPENED ONLY WHEN PACK OUTPUT TEMP WAS MORE THAN 50C. ASKED FA AND HE DID NOT NOTICE ANY SMELL IN THE CABIN. FLIGHT 5104-FILED CLOSED. REF CRJ 200 FIM, FDE-ABNORMAL SMELL FRSDR UIEA2020083101901Relay · malfunctionedDC APU FUEL PUMP ON AT ALL TIMES(<P>RESET DC PUMP CONTROL CB AND RESEATED DC PUMP RELAY K191. OPS CHECKED GOOD IAW B767AMM 28-25-00</P>)SDR REXA2020081200612Solenoid Valve · inoperativeCREW REPORTED A FUEL ODOR WITH THE NR 1 PACK ON, IN THE COCKPIT. FOUND FUEL SOLENOILD VALVE ON APU LEAKING. REPLACED THE SOLENOID VALVE IAW AMM 49-31-05. OPS AND LEAK CHECKED GOOD. R & R APU FUEL CONTROL IAW AMM 49-31-01. OPS & LEAK CHECKED GOOD.SDR HALA2020062300131Wire · looseETOPS SIGNIFICANT SYSTEM - ON PDC FOUND ECAM MSG APU LP VALVE FAULT.// T/S PER A330 TSM 28-29-00-810-801A. REPLACED 6QF RELAY. NO HELP. R/R APU LP FUEL SHUTOFF VALVE ACTUATOR PER A330 AMM 28-29. NO HELP. T/S PER A330 AWM 28-22-02 AND 28-29-02. FOUND LOOSE WISDR HALA2020062200128Flow Divider · malfunctionedETOPS SIGNIFICANT SYSTEM APU FAULT AUTO SHUT DOWN. ACFT ARRIVED W/ APU RUNNING. T/S PER TSM 49-62-00-810-836-A. PERFORMED BLEED OF APU FUEL LINE PER 28-22. PERFORMED ALPHA CALL UP OF APU PARAMETERS. NO DEFECTS NOTED. NEXT STEP TO REPLACE FLOW DIVIDER ASSSDR HALA202006210127Fcu · malfunctionedETOPS SIGNIFICANT SYSTEM - APU DOES NOT GO ABOVE 96%. IAW TSM 49-00-00-810-834-A. FOUND FCU FAULTY. REMOVED AND REPLACED APU FCU PER AMM 49-32-51. OPS CHECK OK. LEAK CHECK OK. APU OPERATES AS NORMAL. AIRCRAFT OK FOR SVC.SDR J7SA2020070600207Fuel Control · malfunctionedWITH APU RUNNING: AFTER EACH ENGINE START AND STABILIZATION, STRONG FUEL SMELL OCCURS. ONCE ECS STARTS, SMELL DISAPPEARS. SMELL RETURNS AFTER LANDING WHEN THE ENGINES ARE SELECTED TO STOP WITH APU RUNNING. SMELL OCCURS ONLY IN COCKPIT. REMOVED AND REPLACEDSDR ASAA2020060832782Fcu · malfunctionedFAULT LIGHT ILLUMINATED DURING APU START ATTEMPT FL 390 SUCCESSFUL CSS ACCOMPLISHED AFTER FAULT LIGHT EXTINGUISHED. GROUNDED - YES. REMOVED AND REPLACED APU FUEL CONTROL UNIT REF AMM 49-91-11 AND APU LUBE MODULE REF AMM 49-31-11. LEAK AND OPS CHECKS GOOD. NO FSDR UIEA2020060401208Fcu · faultyFUEL FILTER HOUSING BOLT ON HOUSING BRAKE REMOVED WILL NOT ACCEPT NEW BOLT REMOVED AND REPLACED APU FCU. LEAK CHECK GOOD IAW AMM 49-31-01.SDR ASAA2020061193749Warning Light · false activationCSS START ATTEMPT FAILED AT FL400 FAULT LIGHT ILLUMINATED QRH COMPLIED WITH NO OTHER ATTEMPT. GROUNDED - YES. ACCOMPLISHED APU BITE REF B737-900 FIM 49-60 TASK 801, NO FAULTS FOUND.SDR UIEA2020051201014Fuel Filter · dirtyUPON APU OIL SERVICE INSPECTION, FOUND FUEL FILTER DPI POPPED.(<P>REMOVED AND REPLACED APU FUEL FILTER IAW B767 AMM 49-31-04. LEAK AND OPS CK GOOD WITH APU RUNNING.</P>)SDR JJBA202005203004Fuel Control · malfunctionedSMELL OF FUEL ON TAKE OFF WITH APU RUNNING. R&R APU FUEL CONTROL. HIGH POWER ENGINE RUNS OPS CHECK SAT. NO FUEL SMELL NOTED AT THIS TIME.SDR UIEA2020040800715Eec · malfunctionedPRIOR TO ENGINE START, WITH SELECTION OF HYDRAULIC DEMAND PUMPS, APU AUTO SHUT DOWN DUE TO RIGHT EEC CB CHANNEL A.(<P>RESET CB, REF FIM 73-21 FT 885, NO FAULTS NOTED.</P><P>ITEM 2: APU STARTED FIRST ATTEMPT, NO APU WORK DONE, NO FAULTS NOTED. NO COLD SOAK REQUSDR ASAA2020040732617Fcu · faultyFAULT LIGHT ILLUMINATED DURING APU START ATTEMPT AT FL380. SUCCESSFUL CSS ACCOMPLISHED AFTER FAULT LIGHT EXTINGUISHED. GROUNDED - YES. REMOVED AND REPLACED FUEL CONTROL UNIT PER B737-900 AMM 49-31-11 OPS CHECK OK NO LEAKS NOTED.SDR DXTA2020032303607Manifold · defectiveCABIN ODOR - FUEL SMELL IN COCKPIT AND CABIN WHEN APU AIR IS SELECTED. SMELL DISSIPATES WHEN APU AIR IS TURNED OFF. WETNESS DUE TO FUEL NOTED ON FITTINGS BELOW APU COMPARTMENT. // SIGNOFF // REMOVED FAILED LEFT SIDE APU FUEL MANIFOLD P/N: 3883899-1, NSN, REPSDR A6WA2020022847203Fuel Line · looseFUEL SMELL IN COCKPIT AND CABIN IN FLIGHT IMMEDIATELY AFTER APU START FOUND BOTH FUEL FEED AND FUEL RETURN LINES @ APU FUEL CONTROL LOOSE TIGHTENED AS REQUIRED.OPS CHECK GOOD IAW, ASDR ASAA2020022403248Fuel Control · faultyFAULT LIGHT ILLUMINATED DURING APU START ATTEMPT AT FL 330 SUCCESSFUL CSS ACCOMPLISHED AFTER FAULT LIGHT EXTINGUISHED. GROUNDED - YES. REMOVED AND REPLACED APU FUEL CONTROL PER B727-900 AMM 49-31-11.SDR 2020FA0000136Manifold · crackedWHILE WAITING FOR PASSENGERS WITH THE APU RUNNING FUEL BEGAN RUNNING OUT OF THE BACK OF THE AIRCRAFT NEAR THE PANEL WHERE THE MARKER BEACON ANTENNA IS MOUNTED. APU WAS IMMEDIATELY SHUT DOWN AND THE FIRE DEPARTMENT CONTACTED. UPON INSPECTION OF THE APU IT WAS NSDR ASAA2020012831987Apu · reads highAPU CT5ATP EGT HAS SHIFTED ABOVE THE 593 DEGREE THRESHOLD AND REMAINS ABOVE THE 605 THRESHOLD. GROUNDED - YES. REMOVED AND REPLACED APU IAW AMM 49-11-00-000-803.SDR ASAA2020013021988Fuel Control · failedAPU FAULT LIGHT ILLUMINATED ON START ATTEMPT (ON GROUND TAXING IN PORTLAND) NO APU START. GROUNDED - YES. REMOVED & REPLACED APU FUEL CONTROL UNIT & LUBE UNIT REF B737-900 AMM 49-31-11 & 49-91-11. STARTED & RAN APU MULTIPLE TIMES WITH NO ISSUES NOTED. GROUND VSDR HALA2020012760017Isolation Valve · inoperativeSUP - ECAM MSG FUEL TRIM LINE FAULT WHEN APU SHUTDOWN, APU ISOL VALVE INOP. // REMOVED AND REPLACED FUEL ISOLATION VALVE ACTUATOR PER TSM 28-29
-00-810-802-A. OPS CHECK GOOD. OK FOR SVC.SDR HALA20200127001Isolation Valve · inoperativeOPEN - ETOPS, ECAM MESSAGE FOR FUEL TRIM LINE FAULT WHEN APU SHUTDOWN, FOUND APU ISOLATION VALVE INOPERATIVE.SDR ASAA2020010931817Unknown · malfunctionedFAULT LIGHT ILLUMINATED ON APU DURING START. GROUNDED - YES. PERFORMED APU BITE TEST FOUND FAULT 49-31016 OVERTEMP SHUTDOWN. PERFORMED B737-900 FIM 49-30 TASK 803 GVI OF APU INLET DUCT AND COMPRESSOR INLET PLENUM WITH NO DEFECTS NOTED. STARTED APU 4 TIMES, ALLSDR UIEA2020010200002Control Valve · malfunctionedAPU INOP ( AUXILIARY POWER UNIT (APU), ER OPERATIONS NOT ALLOWED (NOTIFY DISPATCH) R60 )(<P>TRANSFERRED TO MDDR 122826, MEL 49-11-01A, CAT 'C', DUE 10JAN20.</P><P><SPAN>LP 1205918: REMOVED AND REPLACED APU FUEL VALVE CONTROL ASSY IAW AMM 49-31-01. OPS CHECK GOSDR A6WA2019123047083Fitting · looseSUPPLEMENTAL INFORMATION, STRONG FUEL ODOR IN CABIN. AIRCRAFT REMOVED FROM SERVICE. OBSERVED FUEL POURING FROM INLET FITTING OF APU FUEL SOV, TIGHTENED FITTING AND CLEANED APU ENCLOSURE OF RESIDUAL FUEL, LEAK CHECK GOOD FER AMM 49-31-05.SDR DALA2019121807401O-Ring · failedSHIP 9260 - TO IAH - DURING TAXI IN, JUST AS THE APU STARTED, GOT A STRONG FUEL ODOR IN THE CABIN TO THE COCKPIT NO FUMES SHUT DOWN THE APU ODOR DISSIPATED SLOWLY. FOUND FUEL LEAK BELOW APU AT GATE. / C/A FOUND APU FUEL CONTROL BOWL "O" RING EXPOSED & BOWL MOU
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