JASC 4920

Service difficulty reports · 2,431

Reports filed under 4920 · APU Core Engine, 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 = '4920'
  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 DXTA2012062105006Apu · smokeWHILE RUNNING APU WITH BLEED AIR ON, CABIN AND COCKPIT FILLED WITH BLUE SMOKE. R & R APU IAW MM 49-10-10. LEAK AND OPS CHECKED GOOD. REMOVED, CLEANED, & REINSTALLED WATER SEPERATOR SOCK IAW MM 21-51-00 & 12-19-02. LEAK CHECKED GOOD.Jun 20, 2012 · N616QS · Cessna 560XLSDR UALA2012060803137Actuator · faultyAPU WILL NOT START. APU DOORS WILL NOT OPEN TO ALLOW APU START. REPLACED APU DOOR ACTUATOR, OPS CHECKED GOOD.Jun 8, 2012 · N474UA · Airbus A320232SDR UALA2012060803135Apu · oil consumptionAPU OIL CONSUMPTION ABOVE LIMIT. HIGH OIL COMSUMPTION - FAULT ISOLATION. STARTED ALL OF A SUDDEN 03JUN. OIL IS DIFFICULT TO SEE IF NOT COKED. CHECK ALL LINES & "O" RING CONNECTIONS. ONE SUCH HOC WAS "O" RINGS ON THERMAL BYPASS VALVE. REPAIR OR REPLACE AJun 6, 2012 · N772UA · Boeing 777222SDR UIEA2012060500258Bleed Valve · failedAPU FAULT MESSAGE ON EICAS. APU FAILED AT ENGINE START WHEN APU BLEED SELECTED. R & R APU SURGE BLEED VALVE, OPS CHECKED SATISFACTORY IAW AMM 49-53-01.Jun 5, 2012 · N642GT · Boeing 7673Y0SDR ASAA2012062492428Apu · odorSTRONG DIRTY SOCK ODOR ON DECENT AND APPROACH. PERFORMED CABIN ODOR TEST 05-60-00-280-801 C1, AND MM 49-16-11-200-801, FOUND SWAB TO BE DIRTY AND UNABLE TO DETERMINE IF WET OR OILY. WHILE PERFORMING APU BORO INSPECTION, FOUND WET OIL STAINS IN DIFFUSER HOUSJun 2, 2012 · N588AS · Boeing 737890SDR QXEA2012060200416Apu · shutdownAPU AUTO SHUTDOWN AFTER RUNNING FOR ABOUT 2-3 MINUTES. PERFORMED E/A CHECKLIST & OBSERVED STARTER LIMITS. NO APU FIRE WAS INDICATED. ATTEMPTED 2ND START & APU AUTOSHUT DOWN AGAIN AFTER RUNNING FOR 2-3 MINUTES. NO CURRENT FAULTS IN CDS. OPS TEST OF APU IAWJun 2, 2012 · N413QX · Bombdr DHC8402SDR AALA20120529001Apu · malfunctionedDEN - INFLIGHT ORD-SFPO. CREW REPORTED AUXILIARY POWER UNIT SHUTDOWN WITH RIGHT INTEGRATED DRIVE GENERATOR ON MEL. EMERGENCY DECLARED FLIGHT DIVERTED DEN LANDED WITHOUT INCIDENT. AIRCRAFT REMOVED FROM SERVICE. FOUND NO EXTERNAL LEAKS HOWEVER OIL CONSUMPTIOMay 28, 2012 · N978AN · Boeing 737823SDR UIEA2012052500251Apu · smokeAPU INOPERATIVE DUE TO EXCESSIVE EXHAUST SMOKE AND AUTO SHUTDOWN ON THE GROUND. R & R APU IAW AMM 49-11-01, OPS CHECKED GOOD,May 25, 2012 · N640GT · Boeing 7673S1SDR ASAA12511578Apu · failedAFTER LANDING DURING TAXI IN, ATTEMPTED ONE START ON APU. APU FAILED TO START WITH LOW OIL PRESSURE LIGHT ILLUMINATED. GROUNDED YES. PERFORMED APU BITE REF FIM 49-60, TASK 801. FOUND FAULT 49-11-019. PERFORMED FIM TASK 49-10-00-810-801. APU OPERATES NORMMay 21, 2012 · N537AS · Boeing 737890SDR UIEA2012051900245Apu · smokeAT GATE, BLUE SMOKE FROM APU TAIL PIPE; COCKPIT INDICATION SHOWED APU OIL QUANTITY DROPPING RAPIDLY; APU THEN AUTO-SHUTDOWN. R & R APU BATTERY IAW AMM 24-31-04. R & R APU BATTERY CHARGER IAW AMM 24-13-05.May 19, 2012 · N640GT · Boeing 7673S1SDR AALA20120514014Apu · malfunctionedPSP - CREW REPORTED ODOR AND SMOKE IN THE CABIN. EMERGENCY DECLARED FLIGHT RETURNED PSP LANDED WITHOUT INCIDENT. AIRCRAFT REMOVED FROM SERVICE. PLACARD AUXILIARY POWER UNIT AND ACCOMPLISHED PACK BURN. REPLACED APU AT DFW ON 05/15/2012. SYSTEM GROUND CHECKMay 14, 2012 · N7528A · Doug DC982SDR ASAA12511513Apu · shutdownAPU SHUTDOWN. ACFT GROUNDED. CHECKED AND RESTARTED APU NORMAL START AND ALL INDICATIONS NORMAL WITH FULL LOAD. NO HISTORY NOTED IN 30 DAYS IAW MM 49-11-00.May 4, 2012 · N592AS · Boeing 737890SDR USAA2012050700003Apu · malfunctionedACRID CABIN ODOR THROUGHOUT AIRCRAFT MOST NOTICABLE DURING APPROACH. REMOVED AND REPLACED APU. COMPLIED WITH ENVIRONMENTAL CONTROL SYSTEM PER 26L00021004. NO ODORS NOTED. SUP WILL SUBMIT ROOT CAUSE INFORMATION UPON RECEIPT OF TEAR DOWN REPORT FROM HONEYWELMay 4, 2012 · N815AW · Airbus A319132SDR UALA2012050302614Apu · malfunctionedAPU FAILED TO START 3 TIMES ON TAXI IN. OPS CHECKED IAW AMM 49-0 0-00-201. STARTED 4 TIMES, BOTH PACKS OPERATED, IGNITION, EGT ALL NORMAL.May 2, 2012 · N427UA · Airbus A320232SDR UALA2012050302609Apu · malfunctionedAPU FAILED TO START 3 TIMES ON TAXI IN. OPS CHECK IAW AMM. STARTED 4 TIMES, BOTH PACKS OPERATED, IGNITION, EGT ALL NORMAL.May 2, 2012 · N427UA · Airbus A320232SDR CA120502013Housing · cracked(CAN) DURING THE ROUTINE SSI INSPECTION OF THE APU MOUNT AND STRUCTURE, IT WAS NOTICED THAT THE APU, PN 160371-201, SN 897402, HAD A SIGNIFICANT JAGGED CRACK ON THE FWD FACE OF THE COMBUSTION HOUSING, PN 160184-100, AFT OF THE V-BAND CLAMP WHICH SECURES THE COApr 30, 2012 · Dhav DHC7100SDR ASAA12511468Apu · overtempAPU TEMPERATURE CONTINUES TO BE ABOVE THE ESTABLISHED TEMP ON DEMAND THRESHOLD. ACFT GROUNDED. REPLACED THE APU IAW MM 49-11-00 AND T/C 78349010.Apr 30, 2012 · N512AS · Boeing 737890SDR FDEA201204271653Apu · smokePRIOR TO START CHECKLIST, ACRID SMOKE ENTERED COCKPIT. INTITALLY SMELLED SMOKE, THEN VISIBLE. APU RUNNING, BOTH LT & RT PACKS ON. TURNED OFF PACKS & OPENED WINDOWS TO VENT COCKPIT. SMOKE STOPPED AFTER PACKS TURNED OFF. PRIOR TO DECLARING SMOKE IN COCKPIApr 27, 2012 · N919FD · Boeing 75723ASDR CA120420008Apu · failed(CAN) FLIGHT CREW REPORTED THAT ANOTHER ACFT NOTICED, MORE SMOKE THAN NORMAL, COMING FROM THE APU TAIL PIPE ON SHUTDOWN. NO OTHER INDICATIONS WERE REPORTED BY THE FLIGHT CREW. CRASH, FIRE, RESCUE ATTENDED THE ACFT ON THE TAXIWAY AND AFTER FINDING NO INFRA REDApr 19, 2012 · Boeing 7377CTSDR UALA2012041202208Starter · making metalAPU AUTO SHUTDOWN ON START AT 30 PERCENT. APU WILL NOT START, STARTER TURNS BUT WON' T ROTATE GEAR BOX. SUSPECT SHEARED STARTER SHAFT. REPLACED STARTER, NO HELP. FOUND STARTER GEAR BOX CHIP DETECTOR FILLED WITH LARGE METAL SHAVINGS. REPLACED APU.Apr 12, 2012 · N671UA · Boeing 767322SDR USAA2012041100019Apu · leakingWHEN APU BLEED ON & PACKS ON, A VERY STRONG DIRTY SOCK ODOR WAS NOTICED INSIDE AIRCRAFT. INITIALLY ODOR WAS ONLY SLIGHT AND CONTINUED TO INTENSIFY. FOUND APU LEAKING OIL FROM BOLTS OF FIRST FLANGE OF GAS GENERATOR MIGRATING ALONG PLENUM FLANGE AND INGESTING Apr 8, 2012 · N821AW · Airbus A319132SDR UIEA2012032900109Bottle · low pressureAPU INOPERATIVE DUE TO BOTTLE LOW PRESSURE MESSAGE.Mar 29, 2012 · N497MC · Boeing 7673S1SDR AALA20120326007Apu · leakingDFW - CREW REPORTED DARK SMOKE IN AFT OF CABIN. FLIGHT RETURNED DFW LANDED WITHOUT INCIDENT. AIRCRAFT REMOVED FROM SERVICE. FOUND AUXILIARY POWER UNIT LEAKING OIL. REPLACED APU. SYSTEM GROUND CHECK NORMAL OPERATION.Mar 26, 2012 · N426AA · Doug DC982SDR UALA2012032601911Apu · shutdownAPU AUTOSHUTSDOWN. FAULT LIGHT ON. NO ABNORMAL INDICATIONS. REPLACED APU PER MM, NO LEAKS NOTED.Mar 24, 2012 · N675UA · Boeing 767322SDR UALA2012032201828Apu · shutdownAPU AUTO SHUTDOWN. NEED MORE TIME FOR T-S.Mar 19, 2012 · N105UA · Boeing 747451SDR USAA2012031500007Gearbox · leakingDIRTY SOCK SMELL REPORTED IN CABIN. WHILE TROUBLESHOOTING, MAINTENANCE FOUND APU OIL LEVEL LOW, OIL RESIDUE IN APU INLET, AND APU GENERATOR LEAKING OIL OUT OF ELECTRICAL CONNECTOR. REPLACED THE APU AND APU GENERATOR. HONEYWELL REPORTED GEARBOX HAD A SPLITLIMar 14, 2012 · N653AW · Airbus A320232SDR ASAA12511247Seal · leakingSTRONG WARM OIL SMELL THROUGHOUT CABIN & COCKPIT DURING DESCENT. GREW STRONGER AS CABIN ALTITUDE DECREASED. DURING TROUBLESHOOTING FOUND MIDDLE DRAIN MAST FOR LOAD COMPRESSOR SEAL LEAKING OIL NO OIL ALLOWED PER MM 49 16 11 200 801. REPLACED APU REF M/M 49 1Mar 14, 2012 · N508AS · Boeing 737890SDR UIEA2012031400092Apu · shutdownON PUSH BACK PRIOR TO ACFT MOVEMENT APU AUTO SHUTDOWN. PERFORMED FIM 49-11-00 FIG 103 NO FAULTS FOUND, CYCLED APU SWITCH, STARTED OK, NO FURTHER DEFECTS AT THIS TIME.Mar 14, 2012 · N640GT · Boeing 7673S1SDR UALA2012030801530Apu · shutdownAPU AUTO SHUTDOWN AT GATE WHILE POWERING A-C. STARTED APU. APPLIED LOAD, OPS CHECKS NORMAL.Mar 7, 2012 · N547UA · Boeing 757222SDR UALA2012030701489Unknown · malfunctionedAPU FAULT ON START, REACHED 87% THEN FAULT AND SHUTDOWN. DID APU START AND WAS TEXTBOOK START, NO FAULTS AT THIS TIME.Mar 5, 2012 · N549UA · Boeing 757222SDR UIEA2012030300079Apu · failedAPU AUTO SHUTDOWN AT GATE, SPARKS FROM TAIL PIPE, HEAVY METAL ON MAIN CHIP DETECTOR. HOUR METER READING 4271.1 R & R APU IAW AMM 49-11-01 & NBSP; LEAK CHECKED GOOD, BLEED AIR CHECKED GOOD. GENERATOR CHECKED GOOD.Mar 3, 2012 · N640GT · Boeing 7673S1SDR UALA2012030101282Blades · damagedAPU RUNNING AT GATE FOREIGN MATERIAL EXITING APU EXHAUST. PER AMM, CHECK MAG PLUG CHIP DETECTORS. IF OK, CHECK INLET DUCT PATH FOR DAMAGE OR DELAMINATION IF OK REF: AMM AND INSPECT FOR DAMAGE. COMPLETED APU REMOVAL AND INSTALL REF AMM. DAMAGED BLADES FOUNDMar 1, 2012 · N216UA · Boeing 777222SDR UALA2012022901263Gearbox · leakingAPU GENERATOR HAS EXTERNAL OIL LEAK. REMOVED GENERATOR PER MM UP TO BUT NOT INCLUDING TASK 5 OR FILTER CHECK PER NOTE AT THE TOP OF PAGE 403 OF MM (FILTER NOT CHECKED YET). REPLACED GENERATOR WITH ROBBED GEN RAN APU FOUND OIL LEAKING FROM HAIRLINE CRACK IN GFeb 28, 2012 · N796UA · Boeing 777222SDR VNAA2012030200016Apu · failedCREW REPORTED SMOKE LAV CAS MESSAGE ON TAXI IN, ACCOMPANIED BY STRONG SMELL OF SMOKE. CREW STOPPED AIRCRAFT SHORT OF JETBRIDGE AND PASSENGERS EVACUATED AIRCRAFT THROUGH PASSENGER DOOR. MAINTENANCE INSPECTED LAVATORY AND FOUND NO EVIDENCE OF FIRE OR SMOKE. MFeb 28, 2012 · N209PS · Cndair CL6002B19SDR UIEA2012022500061Engine · making metalAPU FAILED AT GATE. AUTO SHUTDOWN, ECU BITE SHOWS "APU SHUTDOWN FOR LOW OIL PRESSURE". APU CHIP DETECTOR SHOWS EXCESSIVE METAL.Feb 25, 2012 · N640GT · Boeing 7673S1SDR ASAA12511151Apu · overspeedAPU OVERSPEED LIGHT ILLUMINATED ON CLIMBOUT AT FL 290 NON ETOPS AIRSPACE. DIVERSION TIME: 14 MINUTES.PERFORMED APU BITE FOUND MAINT MESSAGE 49 31014 APU OVERSPEED 2 OCCURENCES. REPLACED APU ASSY PER TASK CARD 78349001 & AMM 49 11 00 APU OPS & LEAK CK OK.Feb 23, 2012 · N583AS · Boeing 737890SDR CALA2012022400120Apu · contaminatedHEAVY SMOKE IN COCKPIT WHEN WE REACHED THE GATE. TURNED OFF PACKS AND SMOKE STOPPED, WAS DEICED IN DENVER. NO SMELL AFTER ENG SHUTDOWN. SMOKE/ODOR IN FLT DECK INSP, FOUND DE-ICE FLUID IN APU INLET AREA. C/W TASK 21-00-01-100- 801, REMOVAL OF CONTAMINATION, Feb 23, 2012 · N31412 · Boeing 737924SDR DXTA2012022004880Apu · leakingAFTER LANDING, STRONG ACRID SMOKEY ODOR IN COCKPIT. AFTER ENGINE SHUTDOWN, SMOKE PRESENT IN COCKPIT & CABIN. ACFT COMPLETELY SHUTDOWN, SMOKE LINGERED FOR ABOUT :15. ALL SYS OPERATED NORMAL. ACFT CHECKED, NO ODOR NOTED, RAN ENGINES INDIVIDUALLY & NOTED NO OFeb 19, 2012 · N889QS · Raythn HAWKER900XPSDR CA120228005Diffuser · fractured(CAN) DURING APU OPERATION, THE COCKPIT RECEIVED AN "APU BLEED AIR LEAK" MESSAGE. FOLLOWING SHUTDOWN, INSPECTION FOUND A FRACTURED LOAD COMPRESSOR DIFFUSER PIPE. WHICH HAD DAMAGED THE AIR DUCT AND HAD TRAVELLED DOWNSTREAM TO DAMAGE THE OZONE CONVERTER.Feb 16, 2012 · Airbus A380842SDR A6WA201240184Engine · inoperativeAPU FAILED TO START, SMOKE COMING FROM INTAKE. OPENFeb 13, 2012 · N432AW · Cndair CL6002B19SDR CA120215006Apu · failed(CAN) THE CREW TRIED TO START APU 3 TIMES ON DESCENT. 1ST: NO RPM, AND LITTLE TO NO EGT. DID NOT START. 2ND: RMP WAS LOW AND EGT WAS ERRATIC. DID NOT START. 3RD: STARTED AND EGT SPIKED TO 640 AND CREW SMELLED BURNING ODOR. CREW SHUTDOWN APU AT THIS TIME. PFeb 10, 2012 · Bombdr BD1001A10SDR VNAA2012021500008Apu · overtempCREW REPORTED WHEN APU WAS STARTED WHILE ON APPROACH, APU TEMPERATURE SPIKED AND THEN SETTLED DOWN. CABIN FILLED WITH SMELL OF FUEL AND FUMES. CREW SHUT DOWN APU AND SMELL DISSIPATED. AIRCRAFT LANDED WITHOUT FURTHER INCIDENT. MAINTENANCE INSPECTED, REMOVEDFeb 9, 2012 · N247JS · Cndair CL6002B19SDR ASAA1251086Apu · faultyAPU LOW OIL PRESSURE LIGHT ILLUMINATED AND APU AUTO SHUT DOWN. PERFORMED APU BITE AND FOUND MESSAGE 49 91007. APU REMOVED AND REPLACE PER ALL TASK CARDS. APU OPERATIONAL CHECK ALL PASSED.Feb 9, 2012 · N566AS · Boeing 737890SDR ASAA12511044Seal · out of limitsPOWERPLANT ENGINNEERING REQUEST THE APU BE REMOVED. REMOVED APU REF M/M 49 11 00 000 802 AND T/C 78349010. FOUND SIGMA SEAL OUT OF LIMITS. REPLACED SIGMA SEAL REF M/M 49 15 11 400 801. INSTALLED APU REF M/M 49 11 00 400 802 AND T/C 78349010. LEAK AND OPS Feb 5, 2012 · N566AS · Boeing 737890SDR 2012FA0000188Inlet Guide Vane · disconnectedDURING A ROUTINE MX CHECK, FOUND THE INLET AIR GUIDE DISCONNECTED AND LOOSE IN THE UPPER TAILCONE AREA. THE APU AIR INLET GUIDE AND "FIRE PROTECTION" FLANGE WAS LOOSE AND PARTIALLY COVERING THE AIR INLET TO THE APU. OPERATION OF THE APU BEFORE THE INSPECTIONFeb 1, 2012 · N830QS · Cessna 560CESSNASDR ANCF2012011800107Apu · damagedBLEED AIR ON MAINTENANCE STATUS PAGE BUN OIL SMELL IN COCKPIT DURING FLIGHT,CHECK APU OIL LEAKS IAW 49-90-00 P830 APU TROUBLESHOOTING WAS PERFORMED FOUND OIL LEAK ITEM DEFERRED TO N°17 MEL 49-10-01 CAT C. DURING CHECK APU FOR LEAKS WERE FOUND EVIDENCE OF LEAKJan 18, 2012 · N598EL · Airbus A318111SDR ASAA1250973Apu · leakingAIRCRAFT HAS "DIRTY SOCK" SMELL ON TAKEOFF AND DESCENT. ACCOMPLISHED TASK 05 60 00 280 801C1 PARAGRAPH 2A THRU 2E RAW OIL FOUND IN THE INTERNAL AREAS OF THE DRAIN CAVITY APU REQUIRES REPLACEMENT. REPLACED APU OPS/LEAK CHECKED APU PER T/C 78349010. NO EVIDENJan 18, 2012 · N597AS · Boeing 737890SDR UALA2012011600319Apu · faultyAPU FIELD OFF LIGHT ON AFTER APU REPLACEMENT DURING OPS CHECK. REPLACED APU FUEL CONTROL, NO HELP. APU AUTO SHUTDOWN FAULT LIGHT ON OVERTEMP ECU MESSAGE. MR49305 ON-86 OFF159. TRIED TWO FUEL CONTROL UNITS. SAME RESULT. SWAPPED APU CONTROL UNIT (ECU) AND Jan 14, 2012 · N643UA · Boeing 767322SDR SWIA201229302Apu · malfunctionedAPU HAD BRIGHT ORANGE SPARKS OUT OF INLET DUCT AND SMOKE AFTER AUTO SHUTDOWN. (FLT 5322) REPLACED THE APU ASSEMBLY.Jan 13, 2012 · N982SW · Cndair CL6002B19SDR ASAA12510950Apu · malfunctionedAFTER PUSHBACK DURING DE ICING OF AIRCRAFT APU DROPPED OFF LINE TWO TIMES. DE ICE PERSONEL REPORTED THERE WAS NO DE ICING FLUID OR SNOW NEAR THE INTAKE. APU APPEARED TO BE RUNNING NORMALLY THE WHOLE TIME. DE ICE CREW REPORTED APU PUFFED TWICE WITH A BIG VAPJan 12, 2012 · N535AS · Boeing 737890
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