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.

SDR UALA2010032300960Valve · leakingFUEL DRIPPING FROM APU FUEL VENT. FUEL LEAKING FROM FWD DRAIN LINE 50-60 DROPS PER MIN. NO LEAK WITH APU OFF. SUSPECT SURGE CONTROL VALVE ACTUATOR. THE FUEL PUMP SHAFT SEAL, IGV ACTR & SCV HAVE TELL TALE WITNESS DRAINS TO EASILY IDENTIFY A FAULTY UNIT. EACMar 23, 2010 · N222UA · Boeing 777222SDR UALA2010030800780Fuel Control · faultyAPU FAILED TO START, 3 ATTEMPTS. REPLACED IGNITOR PLUG, LEAD AND EXCITER BOX, NO HELP. APU RPM 18 EGT RISES. CONTROL BOX STILL FAULTING NO FLAME. CONFIRM APU FUEL S-O VALVE IS 'OPEN' WITH APU MASTER SW ON. REPLACED FUEL CONTROL. LEAK CHECK AND OP CHECK GOOD.Mar 5, 2010 · N590UA · Boeing 757222SDR MYWA100040Fuel Control · malfunctionedETOPS SIGNIFICANT SYSTEM - APU DROPPED OFF LINE WHILE STARTING ENGINES.Feb 16, 2010 · N753MA · Boeing 73748ESDR MASA2010020800118Fuel Line · chafedREPORTED A SMELL IN THE CABIN WHEN SWITCHING THE BLEED AIR SOURCE FOR THE PACKS FROM ENGINE TO APU BLEED. PLACED ON MEL. FOUND CHAFED FUEL LINE THAT ROUTES TO APU FUEL SOLENOID. POSSIBLE OIL LEAK AS WELL THERE WAS NO OIL IN THE TANK. R2 APU FUEL LINE ON 2/Feb 8, 2010 · N7291Z · Cndair CL6002B19SDR ASAA1057327Drain Mast · crackedAPU FUEL FEED LINE SHROUD DRAIN MAST BEHIND LT WHEEL WELL HAS CRACKS ON BOTH SIDE OF AFT UPPER SIDE OF DRAIN MAST. REMOVED AND REPLACED DRAIN MAST PER MM 28 25 07 020 801 & MM 28 25 07 020 802.Feb 4, 2010 · N559AS · Boeing 737890SDR UALA2010020300437O-Ring · faultyFOUND APU DC FUEL PUMP LEAKING. REPLACED NEW PACKING AND OPS CHECK, NO LEAKING FOUND.Feb 1, 2010 · N219UA · Boeing 777222SDR FDKA2010012700015Shutoff Valve · leakingON LANDING, CREW REPORTED STRONG SMELL OF FUMES IN CABIN AFTER APU STARTED. ON CALL MX FOUND APU LEAKING FUEL AND DEFERRED APU. AC RTG BECAUSE CREW REPORTED STILL HAD FUMES IN CABIN, BUT CREW HAD NOT TRIED TO CLEAR AIR IN CABIN PRIOR TO DEPARTING. ON CALL MJan 27, 2010 · N831MJ · Emb EMB145LRSDR FDKA2010012700013Fuel Line · looseFUEL SMELL IN CABIN AFTER APU START. MX PLACED ON MEL. RE-SECURED APU FUEL LINE AT FUEL SOLENOID VALVE.Jan 27, 2010 · N829MJ · Emb EMB145LRSDR MASA2010012400073Shutoff Valve · faultyFUEL SMELL IN CABIN WITH APU AND PACKS. REPLACED APU FUEL SOV SEALS, OP CHECK GOOD.Jan 24, 2010 · N650ML · Cndair CL6002B19SDR MYWA100013Fuel Nozzle · defectiveETOPS SIGNIFICANT SYSTEM - AT START APU GOES TO 400 DEGREES AND DOES NOT START.Jan 17, 2010 · N752MA · Boeing 73748ESDR MASA2010011400044Duct · looseASH FLT 7155 ORD. ON COMING CREW REPORTED A SMELL OF FUEL WITH THE APU ON. MX VERIFIED FUEL SMELL GENERATED WITH APU ON ONLY. RE-SECURED LOOSE DUCT ON APU.Jan 14, 2010 · N650ML · Cndair CL6002B19SDR C2XA10IA015Fuel Line · leakingIAH - FLIGHT 2337, THE CREW REPORTED, SMELLED FUEL AFTER T/O WITH THE APU RUNNING BLEEDS AND AGAIN AFTER STARTING THE APU UPON PARKING AT IAH. THE AIRCRAFT LANDED AT IAH WITHOUT INCIDENT. MAINTENANCE REMOVED AND REPLACED THE APU FUEL CONTROL LINE, OPERATIONAJan 13, 2010 · N11127 · Emb EMB145XRSDR UALA2010010700096Shutoff Valve · leakingFUEL DRIPPING FROM UNDERSIDE OF LT WING ROOT. APU SHUT OFF VALVE (LOCATED LT WING ROOT AFT SPAR) HAS A SEVERE FUEL LEAK WHEN VALVE IS OPEN AND DC FUEL PUMP IS ENERGIZED. REPLACED APU FUEL VALVE AND SEALS. INSTALLED ACTUATOR AND SAFETIED.Jan 7, 2010 · N777UA · Boeing 777222SDR DXTA2011010504397Structure · leakingSTRONG FUEL ODOR FOUND IN THE REAR OF THE CABIN. 11,000 POUNDS OF FUEL ON BOARD. ODOR FOUND ONLY AFTER THE APU IS STARTED. NO LEAKS FOUND ON THE OUTSIDE OF THE ACFT. NO LEAKS FOUND ON THE INSIDE OF THE ACFT. WAITED 2 HOURS TO LET AIR OUT AND WHEN STARTED APJan 3, 2010 · N702QS · Gulstm 200SDR HALA2010010300002Fuel Control · malfunctionedETOPS SIGNIFICANT SYS - ATB - APU FAIL AT ALT 350, DURING APU VERIFICATION FLIGHT. BITE CHECK ECU, NO FAULT NOTED, REMOVED AND REPLACED FCU IAW AMM 49-31-01 IAW MFG APU T/S GUIDE AND PRECAUTIONARY CHANGE APU ECU IAWAMM 49-61-05, OPS AND LEAK CHECK OK.Jan 3, 2010 · N586HA · Boeing 7673G5SDR CA091203003Duct · cracked(CAN) PIREP DEFECT 1037394 - FUEL MIGRATING FROM LT INNER TANK TO CTR TANK. MX FOUND THE APU BOOST PUMP CANNISTER DELIVERY DUCT CRACKED. REPLACED PER MM 49-32-14 AND SERVICEABLE. (TC NR 20091203003)Dec 2, 2009 · Airbus A310300SDR C2XA09IA302Pressure Switch · inoperativeIAH - DURING MX TROUBLESHOOTING ON MEL 49-00-00 FOR FUEL SMELL COMING FROM PACKS WHEN USING APU, MAINTENANCE REMOVED AND REPLACED THE APU FUEL PRESSURE SWITCH, OPERATIONALLY, AND LEAK CHECKED WITH NO DEFECTS NOTED. REMOVED THE MEL, AND THE AIRCRAFT WAS APPROVDec 1, 2009 · N13997 · Emb EMB145LRSDR C2XA09IA293Solenoid Valve · faultyIAH - DURING PREFLIGHT INSPECTION THE CREW REPORTED A STRONG FUEL SMELL WHEN OPERATING PACKS OFF OF APU. MAINTENANCE INSPECTED THE AIRCRAFT AND PLACED THE APU ON MEL 49-00-00, AND THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE. ON 11/26/09, MAINTENANCE REMONov 25, 2009 · N13997 · Emb EMB145LRSDR QXEA2009112000973Solenoid Valve · malfunctionedATTEMPTED TO START APU, APU AUTO SHUTDOWN. RAMP REPORTED ALOT OF SMOKE. PLACED ON MEL 49-00-1. RETURNED TO SERVICE. MEL CLOSED ON 11-18-09. INTERROGATED CDS, FOUND CODE 102-3 ( UNDERSPEED) REMOVED AND REPLACED MAIN FUEL SOLENOID VALVE IAW AMM TASK 49-30-07-000Nov 16, 2009 · N430QX · Bombdr DHC8402SDR UALA2009102103280Fuel Control · malfunctionedAPU WILL NOT START. COUT RESISTANCE CHK OF FUEL CLUSTER UNIT PIN 9 AND 10 FUEL CLUSTER RECEPTACLE FOUND MORE THAN 1000 OHMS (32000 OHMS) SUSPECT FUEL CLUSTER. APU FUEL CLUSTER REPLACED. ACCOMPLISHED SUCCESSFUL START AT ALTITUDE. CREW COMMENTS: APU STARTED NOOct 20, 2009 · N219UA · Boeing 777222SDR CA090918003Valve · missing(CAN) ON AUGUST 23, 2009 CREW REPORTED A "X FLOW/APU PUMP" MESSAGE IN FLIGHT. CREW DEFERRED APU PUMP IAW MEL 28-24-01-2. ON AUGUST 24TH MX REPLACED APU PRESSURE SWITCH PN 601R62291-7 BUT NO FIX. APU PUMP REMAINED ON MEL. FURTHER TROUBLESHOOTING ON AUGUST 27TH Sep 17, 2009 · Cndair CL6002B19SDR COMA2009092150194Fuel Control · leakingEN ROUTE FROM JFK TO BNA CREW NOTICED FUMES IN THE COCKPIT. PERFORMED QRH, EMERGENCY DECLARED. A/C DIVERTED TO CRW LANDED SAFELY. INSPECTED A/C FOUND APU FUEL CONTROL LEAKING. REMOVED AND REPLACED APU FUEL CONTROL.Sep 16, 2009 · N713CA · Cndair CL6002B19SDR SWIA200922582Shutoff Valve · leakingFUEL SMELL COMING FROM PACKS IN FLIGHT. (FLT 2557) REPLACED APU FUEL SHUT OFF VALVE.Sep 14, 2009 · N407SW · Cndair CL6002B19SDR SWIA200922421Manifold · leakingFUEL SMELL AT ALTITUDE AFTER APU USE. (FLT 4430) REPLACED APU FUEL MANIFOLD.Aug 14, 2009 · N492SW · Cndair CL6002B19SDR HALA2009080400353Fcu · failedETOPS SIGNIFICANT SYSTEM - 49110500 - APU FAILED TO START "FAULT" LIGHT ILLUMINATED AND EICAS MSG DISPLAYED. ADDITIONAL START ATTEMPTS UNSUCCESSFUL. REMOVED & REPLACED APU STARTER PER AMM 49-41-01 & STILL SLOW TO START. RMVD & REPLACED APU BATT PER AMM 24-31-Aug 4, 2009 · N591HA · Boeing 767300SDR C2XA09IA192Solenoid Valve · leakingIAH - FLIGHT 2992, DURING TAXI OUT THE CREW REPORTED A STRONG FUEL SMELL IN THE COCKPIT AND CABIN. THE AIRCRAFT RETURNED TO THE GATE WHERE MAINTENANCE REMOVED AND REPLACED THE APU FUEL SOLENOID VALVE, OPERATIONALLY AND LEAK CHECKED WITH NO DEFECTS, AND THE AIJul 28, 2009 · N16999 · Emb EMB145LRSDR DL764091281Ecu · malfunctionedON TAXI OUT WITH ENGINES SHUTDOWN APU SHUTDOWN WITH FAULT RE-STARTED AND FAILED AGAIN WITHOUT USING PNEUMATICS RETURNED TO GATE. FOUND NO APU AND PNEU LATCHED MSGS. CHECKED APU INLET PLENUM AND FOUND NO INGESTED FOD. OPERATED APU SEVERAL TIMES WITH PACK OPSJul 26, 2009 · N836MH · Boeing 767432ERSDR HALA2009072000315Ecu · malfunctionedETOPS SIGNIFICANT SYSTEM - APU AUTO-SHUTDOWN DURING PREFLIGHT. ECU BITE INDICATES REV FLOW. NO LRU FAULTS AND NO MINI FLAG FAULTS. RAN APU FOR 2 HRS. OPS NORMAL ECU BITE PASSED. AMM 49-61-05.Jul 20, 2009 · N598HA · Boeing 767332SDR SWIA200921979Manifold · leakingSTRONG FUEL SMELL IN CABIN. (FLT 6290)REPLACED APU FUEL NOZZLE MANIFOLD.Jul 11, 2009 · N237SW · Emb EMB120ERSDR UALA2009071002016Seal · leakingAPU FUEL PUMP LEAKING FROM MATING SURFACE. REMOVED APU DC FUEL PUMP MOTOR, APPLIED NEW SEALS, AND REINSTALLED MOTOR, TORQUED ALL MOUNT BOLTS. LEAK CHECK OK, PUMP OPERATION OKAY. REINSTALLED ACCESS PLATE AFTER PUMP REPAIR.Jul 10, 2009 · N209UA · Boeing 777222SDR DXTA2009070703721Line · leakingFUEL FUMES IN COCKPIT AND CABIN WITH APU BLEED AIR ON. SECURED APU AND FUMES STOPPED. REMOVED SECONDARY FUEL MANIFOLD P/N 38838991 DUE TO A FITTING ON LINE LEAKING. INSTALLED A NEW LINE P/N 3883899-1. ALL WORK DONE IAW MM 49-30-06 RAN APU AND ACCOMPLISHED A Jul 7, 2009 · N693QS · Cessna 560XLSDR UALA2009070101884Fuel Control · faultyAPU FAILED TO START. FAULT LIGHT ILLUM AND EICAS MSG. APU FAULT DISPLAYED. NO MSG ON BOX. ONE AUTO EVENT 35 PERCENT 770 DEG. HOOKED TESTER UP COULD NOT GET TO FAULT. DOOR CIRCUIT NEVER FAILED. CHECKED INLET FOR BLOCKAGE OKAY. NO SPIKE VOLT FROM CHARGERJun 30, 2009 · N596UA · Boeing 757222SDR SWIA200921878B-Nut · leakingSTRONG FUEL SMELL IN COCKPIT DURING FLIGHT. (FLT 4878) TIGHTENED B-NUT AT APU.Jun 23, 2009 · N438SW · Cndair CL6002B19SDR CA090616001Line · corroded(CAN) APU FEED LINE FAILED LEAK TEST & SHROUD REMOVED . FEED LINE FOUND HEAVILY CORRODED & LINE BROKEN DUE TO CORROSION . INSP AT FIRST REVEALED A DEPOSIT AT BOTTOM OF SHROUD. SHROUD ALSO CORRODED IN VARIOUS AREAS. PARTS HAVE BEEN REPLACED. SHROUD AND FUELJun 15, 2009 · Cndair CL6002B19SDR CA090521004Line · chafed(CAN) CREW REPORTED THAT THEY HAD AN OIL SMELL WHEN AIR CONDITIONING SYS WAS ON. APU AIR SUPPLY.TRAX DEFECT NR 846559 COMPLETED ON WO NR 191597 NR-001, APU FUEL LINE PN 3883449-1(FCU TO NOZZLES) WAS FOUND CHAFED THRU DUE TO THE MIGRATION OF THE APU INLET BELLOMay 15, 2009 · Cndair CL6002B19SDR UALA2009050501283Fuel Control · leakingFOUND APU FUEL CONTROL LEAKING ON A VISUAL CK DUE TO REPORT OF FUEL ODOR FROM FLT CREW. REPLACED APU FUEL CONTROL. LEAK AND OPS CHECKS GOOD.May 2, 2009 · N669UA · Boeing 767322SDR REXA200900042Line · chafedWHILE PREPARING TO DEPART KDTW FOR KSLT ON FLIGHT 2362, THE FLIGHT CREW BOARDED THE PASSENGERS WITH GROUND POWER AND AIR CONNECTED. WHEN THE APU WAS STARTED, A STRONG FUEL ODOR FILLED THE COCKPIT AND CABIN. THE FLIGHT CREW SHUT DOWN THE APU. MAINTENANCE INSApr 8, 2009 · N8506 · Cndair CL6002B19SDR CA090324003Fuel Control · leaking(CAN) DURING DAILY INSP OF ACFT, FUEL WAS NOTICED COMING OUT OF THE APU ENCLOSURE DRAIN MAST. APU COMPARTMENT WAS ACCESSED TO DETERMINE THE SOURCE OF THE FUEL AND IT WAS NOTED THAT THE ENCLOSURE WAS DAMP WITH FUEL. ENCLOSURE WAS CLEANED OF ALL FUEL AND COMPLETMar 23, 2009 · Cessna 560XLSDR FDKA2009031900053Fuel Filter · looseFLR FLT 6223 JFK-CLT. FUEL SMELL IN COCKPIT DURING TAKEOFF. MX FOUND FUEL FILTER ASSY LOOSE. RE-SECURED AND PERFORMED OPS CHECKS AND CHECKS WERE NORMAL.Mar 19, 2009 · N825MJ · Emb EMB145LRSDR HALA2009030400082Control Unit · malfunctionedETOPS SIGNIFICANT SYSTEM - APU AUTO SHUTDOWN AT GATE. PER FIM 49-11-00-1 FIG 103 BITE ON ECU FAULTS REV FLOW. RESET ECU RE-STARTED APU NO FURTHER FAULTS NOTED. OK TO CONTINUE. NOTE APU AIR ON DMI AND GROUND AIR CART WAS SUPPLYING AIR AT THE TIME OF SHUTDOMar 4, 2009 · N586HA · Boeing 7673G5SDR UALA2009031000550Controller · defectiveAPU START FAILED TWICE. APU DOOR STATUS MESSAGE. APU INOP WON'T START. REPLACED APU CONTROLLER FOR TROUBLESHOOTING.Feb 16, 2009 · N596UA · Boeing 757222SDR C2XA09CL018Line · crackedCLE FLIGHT NR 2267 THE CREW REPORTED A FUEL ODOR FOR 2-3 MINUTES AFTER APU SHUTDOWN. MX INSPECTED AND REPLACED THE FORWARD FUEL LINE FROM THE APU FUEL FILTER TO THE FUEL CONTROL UNIT. OPS CHECKS WERE GOOD AND NO FUEL ODOR WAS PRESENT.Feb 9, 2009 · N24103 · Emb EMB145XRSDR C2XA09IA035Filter · looseFLIGHT 2794, THE CREW REPORTED A STRONG FUEL ODOR ON ROTATION WITH THE APU RUNNING. THE ACFT LANDED AT TUL WITHOUT INCIDENT WHERE THE APU WAS PLACED ON MEL 49-00-00 CAT C, AND THE ACFT WAS APPROVED FOR RETURN TO SERVICE. THE ACFT RETURNED TO IAH ON FLIGHT 20Feb 4, 2009 · N24103 · Emb EMB145XRSDR ASAA0954345Fcu · failedAPU WILL NOT START. GROUNDED YES. DURING T/S FOUND APU LUBE MODULE DIFF PRESS PIN EXTENDED & END OF INDICATOR DAMAGED T/S TO INOP FUEL CONTROL WILL REQUIRE REPLACEMENT. INSTALLED FUEL CONTROL REMOVED. MIG 51 TAGS S/N 24974 27702 24146 AND 13623 INSTALLED ONFeb 3, 2009 · N579AS · Boeing 737890SDR UALA2009020200343Valve · malfunctionedRETURNED TO THE GATE 3 TIMES WITH AN APU FUEL PROBLEM. REACTIVATED APU. APU FUEL VLV REPLACED.Jan 30, 2009 · N552UA · Boeing 757222SDR C2XA09IA021Tube · looseFLIGHT 2590, A STRONG GAS SMELL WAS NOTED WITH THE ENGINE OFF AND APU RUNNING AT THE GATE. MX INSPECTED THE APU, FOUND A LOOSE B-NUT ON THE TUBE ASSY FROM FUEL CONTROL TO FUEL FLOW SENSOR, THE B-NUT WAS TIGHTENED, OPS AND LEAK CHECKED WITH NO DEFECTS NOTED, AJan 20, 2009 · N11184 · Emb EMB145XRSDR UPS09554377Support Channel · chafedINSPECTION TYPE:C2 APU FIRE WIRE SUPPORT BRACKET RT APU ACCESS DOOR IS CHAFING ON APU FUEL LINE AT 4TH LATCH FROM THE FRONT. REMOVED SUPPORT CHANNEL, FABRICATED AND INSTALLED REPLACEMENT CHANNEL PER SRM 51-40-02Dec 30, 2008 · N461UP · Boeing 75724APFSDR UALA2008122607012Fuel Control · failedAIRCRAFT RTFL DUE TO APU NO START AT ALTITUDE. PILOT REPORTS: APU HUNG AT 27 PERCENT DURING ALTITUDE OF 34,000 MSL AND THEN FAULTED, SHUT DOWN. REPLACED APU FUEL CONTROL DUE TO FAULTY FUEL SOLENOID.Dec 26, 2008 · N547UA · Boeing 757222SDR CA090107015Line · chafed(CAN) WHILE SERVICING APU MAINTENANCE NOTICED A FUEL SMELL. OPENED PANEL AND RAN APU. FOUND APU INLET BELLOWS RETAINING CLIP RIGHT SIDE SLID AFT AND CHAFED HOLE IN METERED FUEL LINE TO NOZZLES. FUEL WAS DRIPPING ON IGNITER BOX. REMOVED AND REPLACED FUEL LIDec 15, 2008 · Cndair CL6002B19SDR A6WA200840645Retaining Clip · out of positionWHILE SERVICING APU SMELL NOTICED OPENED PANEL RAN APU. FOUND APU INLET BELLOWS RETAINING CLIP RT SIDE SLID AFT AND CHAFED HOLE IN METERED FUEL LINE TO NOZZLES. DRIPS ON IGNITER BOX. R&R FUEL LINE, REPOSITIONED RETAINING CLIP AND PLACED SPIRAL WRAP ON FUEL Dec 15, 2008 · N433AW · Cndair CL6002B19
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