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 HALA2017010200573Pump · leakingDURING PDC, FOUND FUEL LEAKING FROM TRIM LINE, APU FUEL DRAIN MAST P BOX FULL OF FUEL. REMOVED AND REPLACED THE TRIM TANK TRANSFER PUMP IAW AMM 28-27-48. OPS AND LEAK CHECKED GOOD.SDR ASAA2016121519059Drain · crackedAPU DRAIN MAST CRACKED ON AFT EDGE. ACFT GROUNDED. VERIFIED 0.80 INCH CRACK W/ HFEC MM NDT- PART 6 51-0-0 NR 23. REMOVED APU DRAIN MAST IAW AMM 28-25-07-020-801. INSTALLED APU DRAIN MAST IAW AMM 28-25-07-420-801.SDR ASAA2016113018961Fuel Nozzle · out of toleranceAPU CT5ATP EGT TREND DATA REMAINS AT THE MAINTENANCE THRESHOLD OF 593 BUT LESS THAN 605 DEGREES AFTER LAST MAINTENANCE. GROUNDED - YES. REMOVED AND REPLACED APU FUEL NOZZLES - 10 EA. OPS/LEAK CHECKS NORMAL, REF AMM 49-31-14.SDR AALA201611179007Flow Divider · leakingAIRCRAFT WAS GROUNDED. FLIGHT CREW REPORTED AN OIL ODOR COMING FROM LEFT PACK DURING ALL PHASES OF FLIGHT. MAINTENANCE REMOVED AND REPLACED APU FLOW DIVIDER AND DRAIN VALVE ASSEMBLY PER AMM 49-32-12. ACCOMPLISHED TASK CARD 26L00021002 (APU SMELL IN CABIN), ACSDR REXA2016101902006Packing · leakingSTRONG ODOR OF FUEL IN THE COCKPIT AND CABIN. SEEMS WORSE IN THE COCKPIT AND FLUCTUATES IN INTENSITY SEEMINGLY AT RANDOM. SEEMS TO GET WORSE WHEN THE TEMPERATURE IS TURNED UP ON THE PACKS OR THE BLEEDS ARE ON THE APU. THE ODOR SEEMS TO BE MOSTLY THE OF FUELSDR AALA20161007006Fuel Control · leakingHEAVY FUMES AND ODORS FILLED CABIN WHEN PACKS WHERE TURNED ON WITH APU RUNNING. AIRCRAFT WAS GROUNDED. REMOVED AND REPLACED THE APU FUEL CONTROL IAW AMM 49-30-01. OPS AND LEAK CHECKED GOOD.SDR AALA201609269019Line · leakingTOXIC ODOR REPORTED IN BACK OF ACFT. SMELLS LIKE DIESEL FUEL DURING T/O AND TAXI IN. AIRCRAFT WAS GROUNDED. MAINTENANCE FOUND A FUEL LEAK AT TUBE ASSEMBLY ABOVE AND FORWARD OF THE APU AIR INTAKE AND REPLACED THE FUEL PACKINGS IAW CMM 49-25-69 WITH NO LEAKSSDR AALA20160905012Apu · odorFUEL ODOR AFTER LANDING IN COCKPIT AND CABIN SEEMS TO BE CONCENTRATED MORE IN COCKPIT. FOUND APU TO BE SOURCE OF FUEL ODOR. REMOVED AND REPLACED APU IAW MCM 49-96-82.SDR AALA20160905013Fuel Control · faultyWHEN APU SUPPLYING PACK AFTER LANDING, FUEL SMELL NOTICED IN COCKPIT AND CABIN. ACCOMPLISHED MCM 21-96-01, REMOVED AND REPLACED APU FUEL CONTROL IAW AMM 49-30-01.SDR AALA20160817015Fuel Sys · leakingRAW FUEL ODOR IN CABIN DURING APU OPERATION. AIRCRAFT GROUNDED. ACCOMPLISHED MCM 21-96-01 AND VERIFIED FUEL ODOR IN CABIN. LEAK CHECKED AND FOUND FUEL AT APU DOOR DRAIN. REMOVED AND REPLACED APU IAW MCM 49-96-82. SYSTEM CHECK NORMAL. (OPEN)SDR AALA20160817014O-Ring · leakingRAW FUEL ODOR IN CABIN REPORTED DURING APU USAGE. AIRCRAFT GROUNDED. MAINTENANCE FOUND FUEL LEAKING FROM THE APU FUEL INLET LINE ADAPTER. REMOVED AND REPLACED ADAPTER O-RING IAW AMM 49-30-01. OPS AND LEAK CHECKED NORMAL.SDR AALA20160817012Fuel Control · leakingDURING TAXI IN A STRONG ODOR OF FUEL WAS REPORTED IN THE CABIN AND COCKPIT. THE AIRCRAFT WAS GROUNDED. MAINTENANCE FOUND FUEL LEAKING FROM THE APU FUEL CONTROL DRAIN LINE. REMOVED AND REPLACED THE APU FUEL CONTROL IAW AMM 49-30-01. OPS AND LEAK CHECKED NORMSDR HALA2016080600318Flow Divider · failedAPU FAULT AUTO SHUTDOWN ON TAXI IN. A SECOND START WAS ATTEMPTED, BUT ALSO AUTO SHUTDOWN. APU SPOOLED TO 24 % BUT WOULD NOT LIGHT OFF. ACCOMPLISHED TSM 49-62-00-810-830-A. FUEL SUPPLY & FCI (59KF19) FLOW DIVIDER FAULT. REMOVED AND REPLACED THE FLOW DIVIDER ISDR AALA201607259005Housing · leakingFLIGHT DECK AND CABIN HAS FOUL ODOR WITH APU ON. MAINTENACE FOUND THE FUEL FILTER HOUSING LEAKING FUEL WHICH WAS BEING INGESTED BY THE APU COMPRESSOR. AIRCRAFT WAS GROUNDED. MAINTENANCE REPLACED THE APU FUEL FILTER HOUSING IAW AMM 49-32-41-201 AND ACCOMPLISSDR HALA2016072300300Flow Divider · malfunctionedAIR TURNBACK, APU FAILED TO START THREE TIMES FL390 TEMP -55 EGT OVERTEMP 950 DEG C. PERFORMED APU BITE IAW AMM 49-62 FAULTS APU FUEL FLOW
DIVIDER. R & R THE FUEL FLOW DIVIDER IAW AMM 49-31. OPS CHECKED NORMAL.SDR AOQ2016F00000Fuel Line · chafedWHILE PERFORMING FUSELAGE INTERIOR WING ATTACH INSPECTION TC 532055, FOUND FUEL MAINFOLD LINE CHAFING AGAINST APU IGNITOR, IGNITION LEAD.SDR HALA2016072100290Fmu · malfunctionedAPU IN-FLIGHT START FL - 400 OAT - 57 DEG C UNSUCCESSFULLY IN 3 ATTEMPTS. REMOVED AND REPLACED APU FMU PER AMM 49-32-51.OPERATION,LEAK & SECURITY CHECKED GOOD. OK FOR SERVICE.SDR ASAA2016071317367Apu · failedFAULT LIGHT ILLUMINATED DURING APU START ATTEMPT FL 360. ACFT GROUNDED. PERFORMED APU BITE, FOUND FAULT CODE 49-41010. PERFORMED FIM 49-40 TASK 801, NO ACCELERATION SHUTDOWN. UNABLE TO DUPLICATE FAULT ON GROUND. REMOVED AND REPLACED FUEL FLOW DIVIDER ANDSDR AALA201607019004Line · leakingAPU FUEL FEED LINE LEAKING IN AFT SERVICE BAY COMPARTMENT. REMOVED AND REPLACED APU FUEL FEED LINE FROM APU FIREWALL TO APU FUEL SHUTOFF VALVE PER AMM 28-22-08 AND ACCOMPLISHED A SATISFACTORY LEAK CHECK.SDR AALA201606309001Fuel Control · defectiveDURING TAXI OUT ANOTHER AIRCRAFT REPORTED FIRE / FLAMES COMING FROM THE APU EXHAUST. AIRCRAFT WAS GROUNDED. THE FIRE DEPARTMENT EXTINGUISHED FLAMES AND THE AIRCRAFT SAFELY RETURNED TO THE GATE. APU HAD BEEN SHUT DOWN AFTER ENGINE START SEVERAL MINUTES EARLISDR SIMA20160602004B-Nut · leakingWITH APU BLEED OPEN, GET A SRONG ODOR OF FUEL, POST FLIGHT INSPECTION REVEALS FUEL LEAKING FROM UNDER APU AREA. FOUND LOOSE B-NUT ON APU FUEL CONTROL INLET, ADJUSTED & OPS CHECK IAW AMM 49-31-01, FOUND SYS WORKING PROPERLY. OPERATIONS CHECKED, OPERATIONS CHESDR AALA20160602005Bolt · looseAIRCRAFT WAS GNDED. A STRONG FUEL SMELL REPORTED THROUGHOUT CABIN WHEN APU SUPPLYING AIR CONDITIONING. INSPECTED APU & FOUND FUEL FILTER COVER LOOSE & WET. R & R FILTER COVER BOLTS IAW AMM 49-30-02. OPERATIONAL & LEAK CHECKED NORMAL. ACCOMPLISHED CARD 21-SDR A6WA201643847Fuel · leakingFLIGHT 3914, 3930 STRONG FUEL ODOR COMING FROM THE PACKS. NOTED FUEL LEAK AROUND APU FUEL MANIFOLD & FILTER AREA. WIPED EXCESS FUEL IAW 299136 4 FOR MEL. DID NOT SMELL USING ENG BLEED AIR.SDR ASAA2016042516532Control Unit · failedDURING APU START, FAULT LIGHT ILLUMINATED. ACFT GROUNDED. CHECKED AND FOUND EGT RISING DURING START UP AND SUBSEQUENT APU SHUTDOWN WITH FAULT LIGHT ILLUMINATING. CHECKED FAULT HISTORY IN CDU FOUND MSG 49-31016. RELEASED IAW MEL 49-1B. R & R APU FUEL CONTROLSDR AALA201604209011Fuel Line · leakingAIRCRAFT WAS GNDED. SIGNIFICANT ODOR IN CABIN & COCKPIT SIMILAR TO DIRTY SOCKS OR OIL SMELL. FOUND SEVERAL FUEL LEAKS ON APU IGV ACTUATOR FUEL LINE & FUEL FLOW DIVIDER LEAKING FUEL AT DRAIN LINE DURING RUN OPERATION. TIGHTENED FUEL LINE & REPLACED FUEL FLOWSDR AALA201604209010Flow Divider · leakingAIRCRAFT WAS GNDED. SIGNIFICANT ODOR IN CABIN & COCKPIT SIMILAR TO DIRTY SOCKS OR OIL SMELL. FOUND SEVERAL FUEL LEAKS ON APU IGV ACTUATOR FUEL LINE & FUEL FLOW DIVIDER LEAKING FUEL AT DRAIN LINE DURING RUN OPERATION. TIGHTENED FUEL LINE & REPLACED FUEL FLOWSDR ASAA2016041116351Fuel Control · failedAFTER LANDING APU FAULT LIGHT CAME ON DURING START CYCLE. ACFT GROUNDED. R & R FUEL CONTROL UNIT, REF AMM 49-31-11, OPS CHECK NORMAL.SDR ASAA2016041016350Fuel Control · failedCSS START ATTEMPT NR 1 FAILED AT FL 370 OAT -61C WITH, FAULT, LIGHT ILLUMINATING. START ATTEMPT NR 2 AT FL 310 PASSED. ACFT GROUNDED IAW TSR, NO CURRENT FAULT LOGGED. R & R APU FCU, REF AMM TASK 49-31-11, OPS CHECK GOOD.SDR ASAA2016032116031Fuel Nozzle · failedAPU CT5ATP EGT TREND DATA SHOWS EGT HAS SHIFTED ABOVE THE MAINTENANCE THRESHOLD OF 593 BUT LESS THAN 605 DEGREES. ACFT GROUNDED. R & R APU FUEL NOZZLES REF AMM 49-31-14-400-801 AND IPC 49-31-14-02, ITEM 20. ACCOMPLISHMENT OF THIS MAINTENANCE TASK AFFECTS APUSDR O2GA2016030960401Manifold · chafedDURING POST FLIGHT INSPECTION, FLUID WAS NOTICED ON THE APU COVER. APU COVER WAS REMOVED & COKING WAS FOUND AROUND THE APU IGNITOR. UPON FURTHER INVESTIGATION FOUND THE APU SECONDARY MANIFOLD RESTING ON THE IGNITOR BOSS WHICH RESULTED IN CHAFING ON THE LINE SDR A6WA201643571Indicator · leakingFLIGHT 3847 STRONG FUEL SMELL IN REAR OF CABIN. PRIOR CREW REPORTS APU HUNG START. INSPECTED APU, FOUND DIFF PRESS INDICATOR LEAKING FUEL IAW 296975 3. LOG 296975 3 REF 975/2 APU FUEL LEAK. COMPLIED WITH CM ACTION. PLACARDED & PLACED ON MEL. M/C FUEL FILSDR AALA20160216013O-Ring · leakingAIRCRAFT WAS GNDED. FUEL SMELL REPORTED IN ACFT CABIN. FOUND APU FUEL HEATER LEAKING AT BOTH END FITTING. R & R HEATER FITTING O RINGS IAW AMM 49-31-01. LEAK CHECKED GOOD.SDR AALA201602039001Fuel Control · leakingAIRCRAFT WAS NOT GNDED. STRONG FUEL ODOR IN COCKPIT & CABIN WHEN APU BLEED AIR SWITCH IS ON. FOUND FUEL LEAKING FROM APU DRAIN MAST & DETERMINED THE SOURCE OF THE LEAK WAS THE APU FUEL CONTROL. APU FUEL CONTROL WAS REPLACED & A SATISFACTORY OPERATIONAL & LESDR ASAA2016012715004Fuel Control · failedAPU HAS PREVIOUS HISTORY OF OVERTEMP SHUTDOWN AND REPORT OF APU INOPERATIVE WITH NO FAULT FOUND. ACFT GROUNDED. STEP 1 OF TSR FOUND MAINT MSG 49-52284, 49-52219, 49-41250, 49-41253. FAULT HISTORY SHOW 49-41012, 49-41010, 49-31016, 49-11023, 49-11021. R & R SDR ASAA2016012515003Warning Light · false activationTRIED APU WITH BATTERY, FAULT LIGHT ILLUMINATED & FAULT CODE 49-41010. THIS APPEARS TO BE INTERMITTENT FAULT. ACFT GROUNDED. HOOKED -UP EXT GPU, APU STARTED NORMAL. NO FAULT NOTED.SDR AALA20160125004Fuel Control · leakingAIRCRAFT WAS GNDED. DISTINCT JET FUEL ODOR IN COCKPIT & CABIN WHEN APU BLEED AIR IS SELECTED TO ON. ACCOMPLISHED TROUBLESHOOTING IAW WC 21-96-01. FOUND FUEL LEAK AT APU FUEL CONTROL DRAIN SHROUD. R & R APU FUEL CONTROL UNIT IAW AMM 49-30-01. OPERATIONAL &SDR ASAA2016011214757Fcu · failedAPU FAILED CSS TEST, START ATTEMPS AT 400, 360, 320 FAULT LIGHT ON FOR 5 MIN AFTER EA START. ACFT GROUNDED. R & R APU FCU REF AMM 49-31-11. OPS AND LEAK CK GOOD.SDR ASAA2016010114611Fuel Control · failedAPU FAULT LIGHT ILLUMINATED DURING APU START ATTEMPT FL370. ACFT GROUNDED. R & R APU FCU REF AMM 49-31-11. OPS AND LEAK CHECKED GOOD.SDR ASAA2015122914551Fuel Control · failedDURING APU START AT FL380, THE FAULT LIGHT ILLUMINATED, AND START ABORTED. TEMP REACHED 950 DEGREES. FOLLOWED QRH. ACFT GROUNDED. REPLACED APU FUEL CONTROL IAW AMM 49-31-11. LEAK CHECK GOOD. PERFORMED BITE CHECK OF APU SYS AND PERFORMED GVI OF AIR INLET SDR A6WA201543386Fuel Sys · leakingAFTER START OF APU ON THE GND, STRONG FUEL ODOR FILLED THE CABIN, ODOR DISSIPATE UPON APU SHUTDOWN. INSPECTED AFT EQUIPMENT BAY & APU ENCLOSURE DRAINS, FOUND FUEL LEAKING FROM RT ENCLOSURE DRAIN WHILE APU PUMP IS ON. APU LEAK NOTED LEFT OF COMBUSTOR DRAIN ONSDR UG8A2015 1207 01Packing · leakingDURING PILOTS PREFLIGHT, PILOT DISCOVERED FUEL DRIPPING FROM APU ENCLOSURE. REPLACED PACKING ON OUTLET FITTING OF APU FUEL CONTROL UNIT IAW GTC 36-150 MM CHAPTER 49 30 52. LEAK CHECKED GOOD.SDR COZA20151209068Liner · damagedAPU WOULD HANG AT 250-300 DEGREES FOR APPROXIMATELY 30 SECONDS DURING START AND THEN ACCELERATE. APU WAS MAKING CHUGGING EXHAUST NOISES WHEN RUNNING. SB GTCP85-49-7484 INCORPORATES A NEW FUEL CONTROL AND ATOMIZER/ LINER ASSEMBLY, PN 3604524-54 TO IMPROVE STASDR COZA20151209067Fuel Control · malfunctionedAPU WOULD HANG AT 250-300 DEGREES FOR APPROXIMATELY 30 SECONDS DURING START AND THEN ACCELERATE. APU WAS MAKING CHUGGING EXHAUST NOISES WHEN RUNNING. SB GTCP85-49-7484 INCORPORATES A NEW FUEL CONTROL, PN 3617750-1 AND ATOMIZER/LINER ASSEMBLY TO IMPROVE STARTSDR ASOA20151020082Fuel Control · failedTHE CREW REPORTED A STRONG FUEL ODOR DURING ROTATION, THROUGHOUT CABIN AND FLIGHT DECK WITH THE ODOR STOPPING SHORTLY AFTER WITH NORMAL FUEL FLOW AND CONSUMPTION. THE ACFT LANDED WITHOUT INCIDENT. R & R THE APU FUEL SOLENOID, OPS TESTED WITH NO DEFECTS, REMOSDR AALA201510169009Flow Divider · leakingFLIGHT AAL582, HAD JUST REACHED CRUISE ALTITUDE WHEN THE CAPTAIN SENT AN ACARS STATING THERE WAS AN OIL LIKE SMELL IN BOTH THE FLIGHT DECK & MAIN CABIN. THE FUMES WERE BAD ENOUGH FOR THE CAPTAIN TO DIVERT THE PLANE. THE APPROPRIATE CALCULATIONS WERE MADE UPOSDR ASOA20151014053Solenoid Valve · leakingDURING ROTATION, PILOT REPORTED A STRONG FUEL ODOR THROUGH CABIN AND FORWARD. MAINTENANCE PERFORMED ENGINE RUNS WITH BLEEDS 1 & 2 ON AND NO FUEL ODOR NOTED. FURTHER TROUBLESHOOTING REVEALED FUEL ODOR COMING FROM APU DUE TO LEAK FROM RIGID LINE FUEL FILTER TO SDR ASOA20151009058Fuel Control · leakingTHE CREW REPORTED A FUEL ODOR COMING FROM APU BLEED. AFTER ROTATION WHEN APU WAS PROVIDING AIR TO THE PACKS. MAINTENANCE INSPECTED AND REPLACED THE APU FUEL CONTROL ASSY. OPS CHECKED WERE GOOD.SDR A6WA201543081Fuel Sys · leakingFLIGHT 4017, FUEL LEAKING FROM APU DRAIN UNDER ACFT, STRONG ODOR OF FUEL IN PACKS. INSPECTED APU DRAIN LINES & FOUND FUEL LEAKING FROM FCU DRAIN, INSPECTED APU ENCLOSURE, NO LEAK NOTED AT THIS TIME, IAW AMM 49-11-01.SDR CA150925007Fuel Control · malfunctioned(CAN) DURING TRANSIT FUEL LEAK WAS NOTED FROM APU DRAIN MAST WHILE THE APU WAS OPERATING. DURING TROUBLESHOOTING, LINE MAINTENANCE FOUND A CRACKED FUEL MANIFOLD. THE MANIFOLD WAS REPLACED AND WILL BE SENT TO SERVICE INVESTIGATION.SDR ASAA2015090212936Drain Mast · crackedDRAIN MAST FOR APU FUEL SHROUD DRAIN IS CRACKED. ACFT GROUNDED. REMOVED APU FUEL SHROUD DRAIN MAST REF AMM 28-25-07-020-801. INSTALLED DRAIN MAST IAW AMM 28-25-07-420-801.
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