JASC 4920

Service difficulty reports · 2,430

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 DALA2022120607858Igniter · faultedSHIP 3720 - MISC/DE - DUE TO SINGLE ELECTRICAL SOURCE - LOSS OF LEFT GENERATOR AND UNSUCCESSFUL APU START. T/S PER THE FIM. REPLACED IDG AND APU IGNITER AND LEAD. OPS CHECKS GOOD AND RTS.Dec 3, 2022 · N390DA · Boeing 737832SDR AALA202212088423Apu · odorAIRCRAFT WAS GROUNDED: ACRID SMELL NOTED AT GATE. ODOR RE-OCCURRED BRIEFLY ON DEPARTURE ROLL AND DURING DESCENT. MAINTENANCE ISOLATED THE SOURCE OF THE ODOR TO THE APU. MAINTENANCE REPLACED APU IAW TASK CARD 26L31049003.Nov 27, 2022 · N578UW · Airbus A321231SDR DXTA2022112374630Apu · smokeCOCKPIT FILLS WITH THICK SMOKE, APU ON, BLEED ON NORMAL. REMOVED AND REPLACED THE APU IAW AMM 49-10-00Nov 23, 2022 · N686QS · Cessna 560XLSDR CALA2022102702972Converter · faultedON APU START FAULT LIGHT ILLUMINATED UPON CLEARING MEL ITEM, APU DOES NOT START AFTER FILLING OIL DDP FOLLOWED CARD 49001 OR 49003 TO ACCOMPLISH APU ETOPS VERIFICATION FLT. REPLACED APU START CONVERTER, OP'S TEST GOOD, APU BITE CHECKED, NO FAULTS.Oct 27, 2022 · N53442 · Boeing 737924ERSDR ASAA2022102340424Apu · reads highAPU REPORTS SHOW A RISE IN CT5ATP TEMP AND SURPASSED THE 605 DEGREE THRESHOLD. #PRI2/ETOPS. GROUNDED - YES. REPLACED APU ON WO # 1928869.Oct 23, 2022 · N590AS · Boeing 737890SDR DALA2022101406649None · none(LOG 9712318) CREW NOTICED OILY FUMES, SLIGHT ODOR, WHEN OPERATING PACKS OFF APU. FOUND APU COMBUSTOR DRAIN CLOGGED. CLEANED DRAIN ORIFICE PER B737 AMM 49-55. R/R BOTH RECIRC FAN FILTERS PER B737 AMM 21-25.Oct 12, 2022 · N377DA · Boeing 737832SDR ASAA2022092940209Sensor · faultyAFTER LANDING, THE APU WAS STARTED AND AFTER START THE APU MAINT LIGHT ILLUMINATED. GROUNDED - YES. REMOVED AND REPLACED OIL SENSOR LEVEL REF B737-900 AMM 49-94-11.Sep 29, 2022 · N483AS · Boeing 737990ERSDR DALA2022072805197Contactor · unknownPD: NEW UNIT. / CA: NEW UNIT FROM BOEING, VENDOR 10003534, DAL PO #7925016, FORM TRACKING #02605615, C/W GVI AND RTS.Jul 1, 2022 · Boeing 717200SDR UIEA2022052300511Screw · missingENG #2, INBOARD /SIDE NACELLE STRUT HAVE SEVERAL SCREWS MISSING IN DIFFERENT PANELS. INSTALLED SCREWS AT ENGINE # 2 INBOARD SIDE NACELLE STRUT IN DIFFERENT PANELS AS PER 767-300 SRM 51-40-02-0G-0.May 23, 2022 · N662GT · Boeing 76731ASDR UIEA2022052300513Cone · noneREMOVE INLET CONE SPINNER PER CARD A-72-402-00-02 PER INSPECTION INSTALL INLET CONE AFTER INSPECTIONS COMPLIANCE .REMOVED FRONT SEGMENT OF THE INLET CONE PER B767-300 AMM 72-31-01.OK TO REINSTALL. REINSTALLED INLET CONE SPINNER @ RH ENGINE IAW B76May 23, 2022 · N662GT · Boeing 76731ASDR UIEA2022051400478Blade · nickedFAN BLADE MARKED # 31 HAS A NICK AT L/E AREA D . BLENDED OUT # 1 ENG. FAN BLADE # 31 AT LEADING EDGE; AREA FOUND WITHIN; LIMITS PER B767-300; AMM 72-31-02-308-045-H00. PERFORMED NDT; SPOT &;FLOURESCENT PENETRANT INSPECTION NO NICK; ON CRACK IND NOTED REMay 14, 2022 · N649GT · Boeing 767300SDR UIEA2022050600449Packing · leakingENGINE #1, DURING PNEUMATIC LEAK CHECK FOUND POINT E WITH LEAK(<P>REMOVED AND REPLACED PACKING AT LOCATION "E" IAW B767 AMM 20-11-00. NO LEAKS NOTED.</P>)May 6, 2022 · N641GT · Boeing 76738ESDR UIEA2022050600450Packing · leakingENGINE #1, DURING PNEUMATIC LEAK CHECK, FOUND POINT L WITH LEAK REMOVED AND REPLACED PACKING &INBSP; ON LOCATION "K" IAW B767 AMM 20-11-00. NO LEAKS NOTED</SPAN></P>)May 6, 2022 · N641GT · Boeing 76738ESDR UIEA2022050600452Seal · brokenENG. # 2 AFT NOZZLE FOUND SEVERAL FINGER SEAL BROKEN .(<P><SPAN>REMOVED & REPLACED BROKEN FINGER SEAL AT ENG. # 2 AFT NOZZLE AS PER 767-300 SRM 51-40-02-0G-0.</SPAN></P>)May 6, 2022 · N641GT · Boeing 76738ESDR UIEA2022050600453Fire Seal · wornENG. # 2 AFT FIRE SEAL WORN OUT .(<P>REMOVED & REPLACED FIRE SEAL AT ENG. # 2 AT AFT AREANBSP; AS PER 767-300 SRM 51-40-02-0G-0.</P>)May 6, 2022 · N641GT · Boeing 76738ESDR AALA202205024170Apu · shutdownAIRCRAFT WAS GROUNDED: APU AUTO SHUTDOWN FAULT LEAVING ONLY ONE ELECTRICAL ELECTRICAL POWER SOURCE. DECLARED AN EMERGENCY AND DIVERTED TO CLT LANDING SAFELY. FOUND APU TO HAVE INTERNAL OIL LEAK. REPLACED APU PER JOB CARD 26L31049003. ACCOMPLISHED SATISFACTORY Apr 29, 2022 · N721UW · Airbus A319112SDR I5PA2022042388805Valve · faultyETOPS SIGNIFICANT ITEM: APU FAILED TO START IN FLIGHT INTO GUM. THE APU OPERATED NORMALLY ON THE GROUND. TROUBLESHOOTING STEPS INDICATED A FAULTY OIL PRESSURE PUMP AND DE-OIL SOLENOID VALVE. REPLACED DE-OIL SOLENOID VALVE. OPS CHECK NORMAL ON GROUND. (SEE SDR Apr 23, 2022 · N888LT · Boeing 757230SDR AALA202204191641Apu · contaminatedAIRCRAFT WAS GROUNDED: LAST 10 MIN OF FLIGHT SIGNIFICANT ODOR / FUME EVENT. MAINTENANCE FOUND A LARGE QUANTITY OF RESIDUAL HYDRAULIC FLUID IN CENTER KEEL BEAM OF MAIN LANDING GEAR WHEEL WELL AND DETERMINED THAT THE APU HAD INGESTED THIS FLUID CAUSING IN THE ODApr 17, 2022 · N773XF · Airbus A319112SDR ASAA2022040237878Apu · unknownAPU OIL CONSUMPTION INSPECTION DUE TO REPORT OF EXCESSIVE SERVICING. ETOPS SIGNIFICANT SYSTEM TASK AFFECTS APU ON DEMAND IN-FLIGHT START CAPABILITY. GROUNDED - YES. REF ITEM 1 OF TSR B737-800 FIM TASK 49-95-00-810-801. REMOVED AND REINSTALLED PORT 1 EGT PROBEApr 2, 2022 · N516AS · Boeing 737890SDR ASAA2022032337794Ecu · inoperativeAPU FAULT LIGHT ILLUMINATES ON ATTEMPTED APU START. GROUNDED - YES. ACCOMPLISHED APU BITE TEST, FOUND ACTIVE MAINTENANCE MESSAGE 49-89002 " ONBOARD MAINTENANCE FUNCTION HAS NO INPUT FROM APU ECU" PER B737-9 IFIM 49-00-00-810-817, REMOVED AND REPLACED APU ELECTMar 23, 2022 · N926AK · Boeing 7379SDR AALA202202174930Apu · odorAIRCRAFT WAS GROUNDED: DIRTY SOCK SMELL IN CABIN ON TAXI OUT. CLEARED UP AFTER TAKEOFF AND CAME BACK ON FOR TAXI-IN (BUT NOT AS BAD AS TAXI-OUT) NO ONE SICK OR COMPLAINING. JUST NOTICEABLE BY FLIGHT ATTENDANT 1 AND CAPTAIN. REMOVED AND REPLACED AUXILIARY POWERFeb 12, 2022 · N133AN · Airbus A321231SDR GTIA2022020736263Inlet · contaminatedSTRONG WET SOCK SMELL BEGAN DURING DESCENT (12,000 FT APPROX). SMELL STAYED UNTIL SHUTTING ENGINE OFF AT THE GATE -ACCOMPLISHED TSM 05-50-00, PERFORMED ENG #1 & #2 RUN UP IAW AMM 71-00-00 AND ISOLATED SYSTEMS AND FOUND SOURCE TO DEICING FLUID TO APU INLET. ACCFeb 6, 2022 · N527NK · Airbus A319132SDR AALA202201260138Apu · contaminatedAIRCRAFT WAS GROUNDED: MUSTY ODOR COMING FROM AIR VENTS APU RUNNING. MAINTENANCE ISOLATED THE SOURCE OF THE ODOR TO THE APU. MAINTENANCE FOUND THE APU HAD BEEN PREVIOUSLY OVER SERVICED RESULTING IN THE APU BEING CONTAMINATED. MAINTENANCE CLEANED THE APU PLENUJan 24, 2022 · N133AN · Airbus A321231SDR AALA202201265810Apu · contaminatedAIRCRAFT WAS GROUNDED: FLIGHT CREW REPORTED A REPEAT ODOR THAT OCCURRED IN DESCENT 13000 TO LANDING MUSTY SMELL, ACRID QUALITY TO IT ON ROOF OF MOUTH. IN CLEAR AT IDLE HP VALVES CLOSED AND UP VALVES OPEN. MAINTENANCE FOUND THE APU HAD BEEN PREVIOUSLY OVER SERJan 24, 2022 · N133AN · Airbus A321231SDR DALA2022012000403Apu · odorSTRONG DIRTY SOCK SMELL + ODOR ONLY WHEN APU RUNNING ON GROUND.DISSIPATES WHEN APU SHUT DOWN. PERFORMED NO GO ODI PREVENTION STEPS PER WORK CARD 0550-2001 + EFIM SMELL OF SMOKE OR FUMES WITH APU AS SOURCE. PERFORMED DUCT BURNOUT + REPLACED BOTH RECERC FILTERS.Jan 18, 2022 · N139DU · Bombdr BD1001A10SDR XCGA20220112001Seal · leakingSMELL OF SMOKE IN THE CABIN AFTER APU START. APU WAS SHUT DOWN AND SMELL DISSIPATED. TROUBLESHOOTING REVEALED THE APU COMPRESSOR OIL SEAL IS LEAKING. APU REMOVED AND SENT TO REPAIR STATION.Dec 30, 2021 · N560DR · Cessna 560XLSDR DALA2022010408212Apu · contaminatedSHIP 3825 -MISC/SMK- CREW REPORTED FUMES IN THE CABIN DUE TO DE-ICING FLUID INGESTED INTO THE APU INLET DURING DE-ICING. CORRECTIVE ACTION: PERFORMED LEFT ENGINE AND PACK DUCT BURNOUT. RIGHT ENGINE AND PACK NO PROBLEM FOUND. REPLACED RECIRCULATION FILTERS. OPSDec 30, 2021 · N825DN · Boeing 737932ERSDR ASAA2021122737057Apu · inoperativeAPU WOULD NOT START AFTER LANDING. MADE 2 ATTEMPTS. GROUNDED - YES. REF T/C 78349010 FOR APU REMOVAL AND REPLACEMENT. ALL OPS AND LEAK CHECKS GOOD.Dec 27, 2021 · N508AS · Boeing 737890SDR YENA2022010300004Plenum · contaminatedFLT 1632, BDA-JFK. MUSKY/MOLDY/CRAYON ODOR DETECTED UPON APPLICATION OF APU BLEED WHILE ON THE GROUND IN BERMUDA. ODOR NOTED THROUGHOUT THE ENTIRE AIRPLANE AND ALL CREW. ODOR SUBSIDED WITH REMOVAL OF APU BLEED. NOTICEABLE AGAIN ON CLIMBOUT. DEFINITELY FROM ENVDec 26, 2021 · N653JB · Airbus A320232SDR YENA2021111500768Apu · contaminatedFLT 205, EWR-FLL. ODOR OBSERVED SMELLED ON TAXI OUT AND ON DESCENT. SMELL LIKE SHARPIE MARKER IN COCKPIT & CABIN ; ODOR IN THE CABIN WAS ADDRESSED AND APU PLACED ON MEL REF MDDR# 454855 ACCOMPLISHED INFO NOTICE 2017-T015I PERFORMED APU ECS DECONTAMINATION. NO Nov 12, 2021 · N658JB · Airbus A320232SDR AALA202110151717Compressor · contaminatedAIRCRAFT WAS GROUNDED: AFTER APU AND ENGINE START SLIGHT OIL ODOR THAT CLEARED AFTER A FEW MINUTES. ODOR RETURNED AT TOP OF DESCENT AND THEN CLEARED AGAIN. **SUPPLEMENTAL REPORT FOR AALA202110061717: COMPLETED APU LOAD COMPRESSOR CLEANING IAW AMM 49-20-00-100Oct 3, 2021 · N191UW · Airbus A321231SDR CALA2021091301560Flange · corroded(B757-49-3-8084) THE INTERIOR FLANGE IS CORRODED AND CRACKED, FOR THE APU AIR INLET DOOR ASSY., AT THE FWD O/B EDGE AND THE O/B AFT EDGE, VIEWED SITTING ON TOP OF THE HOR. STAB. CENTER BOX, LO OKING UP.Sep 11, 2021 · N17122 · Boeing 757224SDR UIEA2021090601973Apu · shutdownAPU SHUTDOWN BEFORE PUSH. RESTARTED WITH NO ISSUES(<P>PERFORMED OPS CHK OF APU START SYSTEM. OPS CHKS GOOD IAW AMM 49-41-00.</P>)Sep 7, 2021 · N1489A · Boeing 76731KSDR UIEA2021090701983Fault Message · false activationAPU FAULT EICAS MSG 1ST START ON GROUND @ TPA. STARTED 2ND ATTEMPT. RECURRANCE OF PREVIOUS LEGS.(<P>TRANSFERRED TO MDDR 153154 PER DDG 49-11-01A. CAT C. DUE 17SEP21 ZH 1707.</P> / <P>REF LOGPAGE 1386720 ITEM 4 RFD: C/W BITE AND OPS CK IAW 49-00-00. OPS CKS GOOSep 7, 2021 · N1427A · Boeing 767306SDR YENA2021091000566Apu · odorFLT 939, JFK-SJD. STRONG OIL ODOR ON A/C FIRST ASSITANCE FAS REPORTED SLIGHT ON DESCENT BUT EXTREMELY STRONG ON GROUND ( APU SYSTEM ); PERFORMED INFO NOTICE 2017-T015I AND PLACED APU ON MEL 49-10-01A CAT C.MX4 UPDATED.PLCARD INSTALLED. OPENSep 6, 2021 · N563JB · Airbus A320232SDR UIEA2021083101918Isolation Valve · faultedDURING UNLOADING LOST APU DUCT PRESSURE(<P>TRANS TO MDDR 152610 CAT C IAW DDG 49-11-01-01.</P> / <P>REF LOGPAGE 1395659 ITEM 5: FOUND ISO VALVES IN OFF POSITION, PUSHED ISO SWITCH IN, OPS CHECK GOOD. THIS CLEARS MDDR #152610 IAW B767 AMM 49-11-00.</P>)Aug 28, 2021 · N1399A · Boeing 767306SDR ASAA2021082735819Apu · faultedAPU FAULT ON START, 3 ATTEMPTS MADE. GROUNDED - YES. (RESOLVED ON W/O: 1883675 TASKCARD: N/R-00002 ) PER TECH SERVICES MIKE PERSHING REQUEST: REPLACED START POWER UNIT PER B737-800 AMM 49-41-71 PG# 401, APU ETOPS OPS CHECK GROUND VERIFICATION NORMAL. ETOPS P/NAug 27, 2021 · N596AS · Boeing 737890SDR I5PA2021091025708Pressure Switch · faultedAPU GENERATOR DIFFERENTIAL PRESSURE SWITCH WAS FOUND FAULTY AND REPLACED DUE TO AN APU FAULT DURING START. APU OPERATED NORMALLY AFTER REPLACEMENT.Aug 26, 2021 · N757QM · Boeing 75729JSDR P5CA2021081900321Control Valve · faultedAPU FAULT, LOSS OF POWER UNDER LOAD. TRANSFERRED TO DMI 152168 PER MEL 49-11-10A. REMOVED AND REPLACED SURGE CONTROL VALVE IAW AMM 49-53-01 OPS CHECKS GOOD. THIS CLEARS DMI 152168. MCC NOTIFIED. PLAC REMOVED.Aug 20, 2021 · N643GT · Boeing 7673JHFSDR CALA2021081801365Apu · inoperativeAPU FAULT EICAS. WITH AUTO SHUT DOWN IN FLIGHT. DUE TO HISTORY OF APU AUTO SHUTDOWN PLEASE REMOVE & REPLACE APU. NO TIME TO TS. APU INOPED PER MEL. UPON CLEARING THIS ITEM TO APPLY APU VERIFICATION FLIGHT REQUIREMENT APU PLACED ON MEL, BITE CHECKED BOX, IT SAug 18, 2021 · N672UA · Boeing 767322SDR I5PA2021081775706Egt Indication · reads highAPU OPERATING HIGH EGT AND EXCEEDED LIMIT... REPLACED APU ASSY.Aug 17, 2021 · N757QM · Boeing 75729JSDR UIEA2021081601807Apu · shutdownDURING PUSHBACK, WHEN APU AIR SELECTED OFF FOR ENGINE START, APU SHUTDOWN(<P>PERFORMED FIM TASK ATLAS 767 FIM 49-11- FAULT TREE 958. APU BITE PROCEDURE. RE-STARTED APU. NO FAULT FOUND.</P>)Aug 16, 2021 · N1709A · Boeing 767375SDR UIEA2021081201770Solenoid Valve · faultedAPU INOP / ( AUXILIARY POWER UNIT (APU), ER OPERATIONS NOT ALLOWED (NOTIFY DISPATCH) R60 )(<P>TRANS TO MDDR 151702 CAT "C" PER DDG 49-11-01.</P> / <P><SPAN>LP #1392425 ITEM #11: COMPLIED WITH WORK ORDER #84670 REV 1 IAW ALL JOB TASK CARDS. REMOVED AND REPLACAug 11, 2021 · N1013A · Boeing 76736NSDR UIEA2021080701739Apu · faultedAPU FAULT - 3 ATTEMPTS(<P>APU STARTS NORMAL AFTER 30 MIN ON AND PER MM 49-11-01</P>)Aug 7, 2021 · N641GT · Boeing 76738ESDR 2021F00109Apu · fireTHE APU WOULD NOT START AND WAS PLACED ON MEL. IT WAS DETERMINED THE EXCITER (IGNITION) BOX ON THE APU WAS NOT WORKING. THE TECHNICIAN REPLACED THE EXCITER BOX AND THE IGNITOR PLUG IAW AMM AND STARTED THE APU NORMALLY. AFTER THE APU STARTED, NO ABNORMAL DISCREAug 3, 2021 · N226EC · Cndair CL6002B16SDR F3LA2021080400057Intake · contaminatedDISCREPANCY: STRONG BURNING RUBBER SMELL MID-FLIGHT ROWS 13-14 DURING DESCENT. / PERFORMED TSM 05-50-00-810-831-A DECISION TABLE MOST PROBABLE CAUSE APU. PERFORMED AMM 49-00-00-200-812-A. FOUND OIL ON INTAKE FLAP CLEANED AREA, OPENED APU AND INSPECTED, NO OTHEJul 30, 2021 · N201FR · Airbus A320214SDR DALA2021072804251Valve · leakingSHIP 3123 - ON APU START, A WET DIRTY SOCK SMELL. R & R SURGE VALVE PER A319 AMM 49-51. FOUND EVIDENCE OF LEAKING ON AND NEAR APU COOLING FAN, REPLACED PACKINGS AND INSPECTED FOR CRACKS, NO CRACKED FOUND. OPS AND LEAK CHECK OF APU COOKING FAN AND SURGE VALVEJul 26, 2021 · N323NB · Airbus A319114SDR AALA202107196307Apu · odorAIRCRAFT WAS GROUNDED: DIRTY SOCK ODOR DURING CRUISE THROUGH TO LANDING AND TAXI-IN AT DFW. POSSIBLE FUMES REPORTED BY FLIGHT ATTENDANT. ALSO DETECTED IN COCKPIT ON SHORT FINAL APPROACH. FOUND APU TO BE SOURCE OF ODOR. (OPEN)Jul 17, 2021 · N756US · Airbus A319112SDR DXTA2021071645310Exhaust Duct · blockedAPU SHUTDOWN CYAN CAS: WAITING TO TAKEOFF, RED APU FIRE CAS MESSAGE ILLUMINATED MONENTARILY FOLLOWED BY CYAN APU SHUTDOWN, APU FAULT, & FIREX BTL 2 LOW MESSAGES. B3 CODES ARE 006348, 008128, 008137. INSPECTED TAIL CONE & FOUND WIRE MESH FALLING APART AND BLOJul 15, 2021 · N759QS · Bombdr BD1001A10SDR AALA202107075469Oil Cooler · malfunctionedAIRCRAFT WAS GROUNDED: ODOR PREVALENT IN CABIN FROM ENVIRONMENTAL SYSTEM. MOST NOTICEABLE WITH APU BLEED ON. DISSIPATES SOMEWHAT WITH ENGINE BLEED SOURCE. FOUND OIL LEAKS FROM THE APU FAN OIL COOLING AND THE APU OIL COOLER. MAINTENANCE REPLACED THE APU FAN OIJul 4, 2021 · N182UW · Airbus A321211
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