JASC 4990

Service difficulty reports · 2,654

Reports filed under 4990 · APU Oil System, 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 = '4990'
  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 AALA202111046233Apu · odorAIRCRAFT WAS GROUNDED: FUMES REPORTED IN AFT CABIN DURING INITIAL CLIMB. MAINTENANCE HAS ISOLATED THE SOURCE OF THE ODOR TO THE APU. (OPEN)Nov 2, 2021 · N553UW · Airbus A321231SDR AALA202111049028Apu · odorAIRCRAFT WAS GROUNDED: FLIGHT ATTENDANT REPORTED SMELLING A CHEMICAL / MUSTY ODOR IN AFT GALLEY AREA DURING DECENT. MAINTENANCE HAS ISOLATED THE SOURCE OF THE ODOR TO THE APU. (OPEN)Nov 2, 2021 · N559UW · Airbus A321231SDR AALA202111033678Cooling Fan · leakingAIRCRAFT WAS GROUNDED: ODOR(DIRTY SOCK SMELL)DURING DESCENT ALL THE WAY TO SHUTDOWN. STARTED APPROXIMATELY 14,000 FEET. MAINTENANCE FOUND THE APU OIL COOLING FAN LEAKING AT THE TRANSFER TUBES, REPLACED THE OIL COOLING FAN AND ACCOMPLISHED A SATISFACTORY LEAKNov 2, 2021 · N124US · Airbus A320214SDR AALA202111105623Cooling Fan · leakingAIRCRAFT WAS GROUNDED: DIRTY SOCK SMELL WITH APU BLEED ON. REPLACED APU OIL COOLING FAN AND ACCOMPLISHED A SATISFACTORY LEAK / OPERATIONAL CHECK PER AMM 49-52-51.Nov 1, 2021 · N552UW · Airbus A321231SDR AALA202111040609Cooling Fan · leakingAIRCRAFT WAS GROUNDED: FUME EVENT OCCURRED PASSING FL 180 250 KNOTS AND CONTINUED TO 12,000. SEEMED TO CLEAR BUT STARTED AGAIN ON DESCENT TO LANDING. MAINTENANCE ISOLATED SOURCE OF ODOR TO THE APU. **SUPPLEMENTAL REPORT FOR AALA202111010609: MAINTENANCE FOUND Oct 28, 2021 · N122NN · Airbus A321231SDR AALA202111100391Oil Cooler · leakingAIRCRAFT WAS GROUNDED: DURING DESCENT AT IDLE POWER STRONG OILY SMELL AT COCKPIT AND AFT CABIN BELOW 10,000" ISOLATED SOURCE OF ODOR TO THE APU DUE TO FINDING OIL IN THE APU INLET OPENING. REPLACED APU OIL COOLER AND APU OIL COOLING FAN (AALA202111101776) PEROct 27, 2021 · N191UW · Airbus A321231SDR AALA202111101776Cooling Fan · leakingAIRCRAFT WAS GROUNDED: DURING DESCENT AT IDLE POWER STRONG OILY SMELL AT COCKPIT AND AFT CABIN BELOW 10,000" ISOLATED SOURCE OF ODOR TO THE APU DUE TO FINDING OIL IN THE APU INLET OPENING. REPLACED APU OIL COOLER AND APU OIL COOLING FAN (AALA202111101776) PEROct 27, 2021 · N191UW · Airbus A321231SDR AALA202111105340Apu · leakingAIRCRAFT WAS GROUNDED: SMELLED AN ODOR ON GROUND IN MKE. DID NOT THINK IT WAS A TOXIC FUME. SMELL PERSISTED THROUGH OUT FLIGHT. ON ARRIVAL SMELL BECAME EXTREMELY PUNGENT. CREW MEMBERS WITH METALLIC TASTE IN MOUTH AND BURNING THROATS/EYES. SOURCE OF ODOR DETERMOct 27, 2021 · N753US · Airbus A319112SDR AALA202110290391Apu · contaminatedAIRCRAFT WAS GROUNDED: DURING DESCENT AT IDLE POWER STRONG OILY SMELL AT COCKPIT AND AFT CABIN BELOW 10,000" ISOLATED SOURCE OF ODOR TO THE APU DUE TO FINDING OIL IN THE APU INLET OPENING. (OPEN)Oct 27, 2021 · N191UW · Airbus A321231SDR AALA202110285340Apu · leakingAIRCRAFT WAS GROUNDED: SMELLED AN ODOR ON GROUND IN MKE. DID NOT THINK IT WAS A TOXIC FUME. SMELL PERSISTED THROUGH OUT FLIGHT. ON ARRIVAL SMELL BECAME EXTREMELY PUNGENT. CREW MEMBERS HAD A METALLIC TASTE IN MOUTH AND BURNING THROATS/EYES. SOURCE OF ODOR DETEOct 27, 2021 · N753US · Airbus A319112SDR AALA202111102874Oil Cooler · leakingAIRCRAFT WAS GROUNDED: FUME SMELL ON APPROACH AND TAXING WITH APU BLEED ON. **SUPPLEMENTAL REPORT FOR AALA202110292874: REPLACED APU OIL COOLER AND ACCOMPLISHED A SATISFACTORY LEAK / OPERATIONAL CHECK PER AMM 49-91-44.Oct 26, 2021 · N770UW · Airbus A319112SDR ASAA2021102636400Oil Cooler · noneAPU OIL MONITORING DATA SHOWS OIL CONSUMPTION TO BE TRENDING HIGHER THAN EXPECTED. GROUNDED - YES. PERFORMED THOROUGH GVI OF APU, FOUND BACKSIDE OF APU OIL COOLER SATURATED WITH OIL. REMOVED AND REPLACED APU OIL COOLER REF AMM 49-91-41. LEAK CHECK GOOD. THIS COct 26, 2021 · N588AS · Boeing 737890SDR AALA202110278085Oil Cooler · contaminatedAIRCRAFT WAS GROUNDED: DIRTY SOCK SMELL REPORTED IN THE CABIN AND FLIGHT DECK DURING CLIMB. REPLACED APU OIL COOLER AND FAN (AALA202110270621) IAW WORKCARDS 26L00021001, 26L0021002, AND 26L00021004; LEAK AND OPS CHECK GOOD.Oct 25, 2021 · N990AU · Airbus A321231SDR AALA202110270621Cooling Fan · leakingAIRCRAFT WAS GROUNDED: DIRTY SOCK SMELL REPORTED IN THE CABIN AND FLIGHT DECK DURING CLIMB. REPLACED APU OIL COOLER (AALA202110278085) AND FAN IAW WORKCARDS 26L00021001, 26L0021002, AND 26L00021004; LEAK AND OPS CHECK GOOD.Oct 25, 2021 · N990AU · Airbus A321231SDR SWIA2021102661950Oil Cooler · leakingON SHORT FINAL RECEIVED SMOKE IN THE FLIGHT DECK AND CABIN AND SHORTLY AFTER RECEIVED APU OIL PRESS CAUTION MESSAGE. COMPLIED WITH QRH AND SMOKE STARTED DISSIPATING. (FLIGHT 5294 - FILED CLOSED) PERFORMED TROUBLESHOOTING IAW FIM 21-21-00. FOUND APU OIL COct 25, 2021 · N463SW · Cndair CL6002B19SDR AALA202111107954Cooling Fan · leakingAIRCRAFT WAS GROUNDED: MUSTY ODOR FROM AIR CONDITIONING WITH BOTH ENGINE BLEEDS & APU BLEED ON BELOW FL 200. ISOLATED SOURCE OF ODOR TO THE APU. MAINTENANCE FOUND MINOR OIL LEAK FROM APU OIL COOLING FAN, REPLACED O-RINGS AND ACCOMPLISHED A SATISFACTORY LEAOct 24, 2021 · N710UW · Airbus A319112SDR AALA202110277954Apu · leakingAIRCRAFT WAS GROUNDED: MUSTY ODOR FROM AIR CONDITIONING WITH BOTH ENGINE BLEEDS & APU BLEED ON BELOW FL 200. ISOLATED SOURCE OF ODOR TO THE APU. (OPEN)Oct 24, 2021 · N710UW · Airbus A319112SDR AALA202110252331Heater · leakingAIRCRAFT WAS GROUNDED: FUMES EVENT AT CRUISE. MAINTENANCE FOUND THE PACKINGS ON THE APU OIL HEATER (AALA202110252331) AND THE APU STARTER MOTOR MOUNT(AALA202110255943) LEAKING AND REPLACED THEM PER AMM 49-96-51 AND AMM 49-42-51. A SATISFACTORY LEAK / OPERATIONOct 23, 2021 · N604AW · Airbus A320232SDR AALA202111026883Oil Cooler · leakingAIRCRAFT WAS GROUNDED: FUMES IN CABIN "DIRTY SOCK SMELL SHORTLY BEFORE LANDING, DURING TAXI AND AT THE GATE. MAINTENANCE: FOUND APU OIL LEAK FROM COMPRESSOR DRAIN CASE/FLUID INGESTION. REPLACED APU OIL COOLER AND APU OIL COLLING FAN IAW AMM 49-91-44. A SATISFOct 22, 2021 · N740UW · Airbus A319112SDR AALA202110256883Cooling Fan · leakingAIRCRAFT WAS GROUNDED: FUMES IN CABIN "DIRTY SOCK SMELL SHORTLY BEFORE LANDING, DURING TAXI AND AT THE GATE. MAINTENANCE: FOUND APU OIL LEAK FROM COMPRESSOR DRAIN CASE/FLUID INGESTION. REPLACED APU OIL COOLER AND APU OIL COLLING FAN (AALA202111020982) PER AMOct 22, 2021 · N740UW · Airbus A319112SDR AALA202110153830Cooling Fan · leakingAIRCRAFT WAS GROUNDED: AT LEVEL OFF FL 380 FLIGHT ATTENDANT REPORTED BURNT COFFEE SMELL AROUND ROW 14 SMELL LASTED APPROXIMATELY 3 MINUTES IN DESCENT BELOW 10000 FEET IDLE THRUST DIRTY SOCK SMELL THROUGHOUT ENTIRE CABIN & FLIGHT DECK. REPLACED APU OIL COOLING Oct 13, 2021 · N701UW · Airbus A319112SDR YENA2021101100670Oil System · leakingFLT #861, BOS-SJU. DURING FINAL APPROACH TO LAND "DIRTY SOCK " ORDER WAS NOTICED IN THE COCKPIT MD CABIN APU WAS TURNED ON AFTER LANDING AND SMELL STAYED ; INSPECTED SYST AS PER INFO NOTICE 2017-T015 I FOUND APU LEAKING OI L PERFORMED ENGINE RUN WITH BOTH ENGOct 9, 2021 · N974JT · Airbus A321231SDR AALA202110194702Oil System · overservicedAIRCRAFT WAS GROUNDED: PUNGENT SMELL IN CABIN AND COCKPIT WHEN PACKS ARE POWERED WITH APU BLEED. MAINTENANCE ACCOMPLISHED TASK CARDS 26L0021001 AND 26L00021002, FOUND OIL COKING ON APU LOWER COMPRESSOR SCREEN. RAN ENGINES 10 MINUTES EACH WITH LEFT AND RIGHT PAOct 7, 2021 · N552UW · Airbus A321231SDR AALA202110133513Fan · leakingAIRCRAFT WAS GROUNDED: ODOR INDICATIVE OF FUME EVENT NOTICED BY CREW BOTH COCKPIT & CABIN ON DESCENT THRU 12,000. REPLACED APU OIL COOLER FAN AND ACCOMPLISHED A SATISFACTORY LEAK / OPERATIONAL CHECK PER TASK CARD 26L00021004.Oct 7, 2021 · N112US · Airbus A320214SDR AALA202110084702Oil System · leakingAIRCRAFT WAS GROUNDED: PUNGENT SMELL IN CABIN AND COCKPIT WHEN PACKS ARE POWERED WITH APU BLEED. MAINTENANCE ACCOMPLISHED TASK CARDS 26L0021001 AND 26L00021002, FOUND OIL COKING ON APU LOWER COMPRESSOR SCREEN. RAN ENGINES 10 MINUTES EACH WITH LEFT AND RIGHT PAOct 7, 2021 · N552UW · Airbus A321231SDR ASAA2021100536189Oil System · leakingIN CRUISE WE SMELLED AN ODOR OF SMOKE LIKE FUMES. LASTED FOR ABOUT A MINUTE. ASKED FLIGHT ATTENDANTS AND THEY SMELLED THE SAME IN THE MID CABIN. AFTER ABOUT A MINUTE FUMES DISSIPATED. NO ABNORMALITIES IN FLIGHT DECK WERE OBSERVED. FLIGHT CONTINUED WITHOUT FURTOct 5, 2021 · N318AS · Boeing 737990SDR F3LA2021100400072Drain · leakingAFT FA'S REPORTED FEELINGS TINGELS AND SMELLED DIRTY SOCKS . C/W INSPECTION TO ID CAUSE OF FUME EVENT FOUND TO BE TYPE 3 ENG 2 & C/W DECONTAMINATION OF ECS. PER TSM T/S MANUAL 05-50-500-810-831-A. PLACED ENG 2 BLEED AIR SYSTEM ON MEL 36-11-01ACNTL # 11754Oct 3, 2021 · N206FR · Airbus A320214SDR AALA202110062842Oil System · leakingAIRCRAFT WAS GROUNDED: ODOR OF BURNING IDENTIFIED IN COCKPIT DURING DESCENT. IT OCCURRED SUBSEQUENT TO BOTH LEFT & RIGHT HIGH PRESSURE BLEED VALVES OPENING. FLIGHT CREW DONNED THE OXYGEN MASKS , DECLARED AN EMERGENCY AND THE AIRCRAFT LANDED AT MIA SAFELY WITHSep 30, 2021 · N93003 · Airbus A319115SDR UIEA2021100402184Oil Cap · unsecureAPU LOW OIL QTY STATUS MSG ( AUXILIARY POWER UNIT (APU), ER OPERATIONS NOT ALLOWED (NOTIFY DISPATCH) R60 ) TRANSFERRED TO MDDR 154385 IAW MEL 49-11-01A, CAT 'C' .LP 1372392: FOUND APU OIL CAP NOT SECURED, SERVICED APU OIL TO FULL @ APU HOURS: 2616.5 AND RESECUSep 30, 2021 · N1511A · Boeing 767383SDR AALA202110065315Oil System · leakingAIRCRAFT WAS GROUNDED: FUME EVENT THRU WHOLE CABIN AND COCKPIT OCCURRED DURING APPROACH. REPLACED APU AND ACCOMPLISHED A SATISFACTORY LEAK / OPERATIONAL CHECK PER TASK CARD 26L31049003.Sep 27, 2021 · N93003 · Airbus A319115SDR ASAA2021091535946Control Valve · inoperativeAPU HAS ADDITIONAL REPORTS OF AUTO SHUTDOWN AFTER OIL COOLER REPLACEMENT FOR OIL OIL TEMP SD(#PRI 2)ETOPS SIGNIFICANT SYSTEM. GROUNDED - YES. REMOVED AND REPLACED APU TCV, REF B737-900 AMM 49-91-21. OP CHECK GOOD NO LEAKS NOTED. REMOVED AND REPLACED APU LUBE MSep 15, 2021 · N423AS · Boeing 737990ERSDR YENA2021091700602Oil System · contaminatedFLT 6196, SJU-JFK. LEVEL 1 ODOR "MAGIC MARKER" TYPE SMELL WHEN FLYING THROUGH MOISTURE/ PRECIP WITH VERY MILD EYE IRRITATION ; REF DEFECT NO. 3170012/1, PERFORMED ENG HIGH POWER BLEED AIR TEST REF TSM 71-00-00-710-085-A. NO SMOKE / OIL SMELL DETECTED IN FLIGHTSep 14, 2021 · N796JB · Airbus A320232SDR HALA2021091400116Heater · faultedETOPS - BTB TO GATE C9 ELEC C/B TRIPPED APU C/B 5000VU CODE 30WB.// FOUND OIL/SCV HEATER (1KT) CB TRIPPED ON 5000VE. REMOVED AND REPLACED APU OIL HEATER PER AMM 49-96-11. OPS AND LEAK CHK OK.Sep 14, 2021 · N373HA · Airbus A330243SDR DXTA2021091448810Oil System · leakingCABIN SMOKE: WHILE ON GROUND WITH APU ON, A FINE MIST WITH AN ODOR OF ENGINE OIL BEGAN TO APPEAR & THICKENED UNTIL BLEED AIR TURNED OFF. COMPLIED WITH TC-68A-21-181006M ENVIRON CONTROL SYS BLEED DUCT BURN PROCEDURE & NOTED SMOKE WHILE DOING PROCEDURE. FOUSep 13, 2021 · N697QS · Cessna 680ASDR DALA2021091305403B-Nut · leakingSHIP 3212 APU AUTO SHUTDOWN AT CRUISE DIVERTED TO CMH. AIR DIVERSION. CORRECTIVE ACTION: FOUND APU TO BE LOW 3 QTS FOUND B NUT ON OIL PUMP TUBE TO BE LOOSE TIGHTENED B NUT PER A320 AMM 49-91 PERFORMED LEAK CK . NO LEAKS NOTED OK FOR SVC. (8110164)Sep 13, 2021 · N312US · Airbus A320211SDR AALA202109095372Apu · leakingAIRCRAFT WAS GROUNDED: FUME ODOR EVENT ON DESCENT OXYGEN MASK DONNED. FL 200 IN DESCENT ,HAPPENED IMMEDIATELY AFTER ENGINES WENT TO FLIGHT IDLE. **SUPPLEMENTAL REPORT FOR AALA202109075372: REPLACED APU AND ACCOMPLISHED A SATISFACTORY LEAK / OPERATIONAL CHECK PSep 6, 2021 · N128UW · Airbus A320214SDR AALA202109078084Cooling Fan · leakingAIRCRAFT WAS GROUNDED: VERY STRONG DIRTY SOCK SMELL IN CABIN DURING DESCENT, REPLACED APU OIL COOLING FAN AND ACCOMPLISHED A SATISFACTORY LEAK / OPERATIONAL CHECK PER AMM 49-52-00.Sep 4, 2021 · N111US · Airbus A320214SDR AALA202109131610Oil System · leakingAIRCRAFT WAS GROUNDED: STRONG ODOR FROM BLEED / AIR CONDITIONING SYSTEM DURING DECENT- BEGAN AT 7000 FEET AND 210 KTS INDICATED AIRSPEED . FLT ATTENDANTS ADVISED THAT ODOR PERMEATED CABIN AS WELL. APU STARTED AND APU BLEED SELECTED ON. ODOR QUICKLY DISSIPATED.Sep 3, 2021 · N9002U · Airbus A319115SDR ASAA2021090235864Oil Cooler · damagedAPU FAULT LIGHT GENERATOR DISCONNECT WHILE APU RUNNING AT GATE. GROUNDED - YES. REMOVED DAMAGED OIL COOLER. REPLACED OIL COOLER PER B737-900 AMM 49-41-41. APU RUNS CONTINUOUSLY WITH NO AUTO-SHUTDOWN. APU OPS AND LEAKS CHECK GOOD. NO FURTHER DEFECTS NOTED.Sep 2, 2021 · N423AS · Boeing 737990ERSDR AALA202109077383O-Ring · leakingAIRCRAFT WAS GROUNDED: DIRTY SOCK SMELL STARTED BELOW 20000. MAINTENANCE FOUND THE APU OIL COOLING FAN LEAKING AND REPLACED THE O-RINGS PER AMM 49-52-51Sep 2, 2021 · N128UW · Airbus A320214SDR UIEA2021090101929Chip Detector · leakingAPU LEAKING OIL FROM THE MAGNETIC CHIP DETECTOR FOR THE GEAR BOX. REMOVED AND REPLACED DRAIN PLUG MAGNETIC DRAIN PLUG,TORQUED TO SPECS AS PER AMM 20-11-00 & LEAK CHECKED GOOD.Sep 1, 2021 · N641GT · Boeing 76738ESDR I5PA2021083075709Filter · faultyAPU OIL PRESSURE DIFFERENTIAL INDICATOR FOUND EXTENDED DURING INSPECTION WHILE SERVICING OIL. FILTER WAS REPLACED ALTHOUGH NO CONTAMINATION WAS FOUND DURING INSPECTION OF THE REMOVED FILTER.Aug 30, 2021 · N757QM · Boeing 75729JSDR AALA202109091356Oil Cooler · leakingAIRCRAFT WAS GROUNDED: DURING DESCENT FLIGHT CREW REPORTED A DIRTY / MUSTY SMELL AND SMELL DISAPPEARED WHEN THE #1 PACK WAS TURNED OFF. **SUPPLEMENTAL REPORT FOR AALA202108311356: MAINTENANCE FOUND OIL LEAK AT THE APU OIL COOLING FAN AND APU OIL COOLER. REPLAAug 30, 2021 · N9002U · Airbus A319115SDR AALA202109092943Cooling Fan · leakingAIRCRAFT WAS GROUNDED: DURING DESCENT FLIGHT CREW REPORTED A DIRTY / MUSTY SMELL AND SMELL DISAPPEARED WHEN THE #1 PACK WAS TURNED OFF. MAINTENANCE FOUND OIL LEAK AT THE APU OIL COOLING FAN AND APU OIL COOLER. REPLACED APU OIL COOLER PER AMM 49-91-44. (INITIALAug 30, 2021 · N9002U · Airbus A319115SDR AALA202109097065Cooling Fan · leakingAIRCRAFT WAS GROUNDED: MUSTY ODOR REPORTED ON DECENT AT 4000 FT IN AFT CABIN. **SUPPLEMENTAL REPORT FOR AALA202108317065: REPLACED APU OIL COOLING FAN AND ACCOMPLISHED A SATISFACTORY LEAK / OPERATIONAL CHECK PER AMM 49-52-51** (CLOSED)Aug 30, 2021 · N182UW · Airbus A321211SDR UIEA2021083001907Filter · faultedAPU INOP ( AUXILIARY POWER UNIT (APU), ER OPERATIONS NOT ALLOWED (NOTIFY DISPATCH) R60 )(<P>REPLACE LUBE GEN SCAVAGE FILTER IAW AMM 49-27-03. APU START ON FIRST TIME. THIS CLEARS THIS DMI 152620. MCC NOTIFIED.</P>)Aug 28, 2021 · N1229A · Boeing 767306SDR P5CA2021083100340Oil Cooler · leakingFOUND APU OIL LEAK FROM AIR-OIL COOLER(<P>REMOVED AND REPLACED APU AIR TO OIL COOLER ASSY THEN OPER CHKD OK PER AMM 49-27-09/401. </P>)Aug 27, 2021 · N644GT · Boeing 7673JHFSDR P5CA2021082700335Oil Cooler · leakingFOUND APU OIL LEAK FROM AIR-OIL COOLER. REMOVED AND REPLACED APU AIR TO OIL COOLER ASSY THEN OPERATION CHKD OK PER AMM 49-27-09/401.Aug 26, 2021 · N644GT · Boeing 7673JHFSDR AALA202108305659Cooling Fan · leakingAIRCRAFT WAS GROUNDED: UPON BOARDING SMELLED FOWL ODOR THAT WAS A COMBINATION OF BARNYARD OILY BURNING THAT CONTINUED THROUGHOUT THE FLIGHT. REPLACED APU OIL COOLING FAN PER AMM 49-52-51 (AALA202108305659) AND APU OIL COOLER (AALA202108309224) PER AMM 49-91-44Aug 26, 2021 · N139AN · Airbus A321231SDR AALA202108309224Oil Cooler · leakingAIRCRAFT WAS GROUNDED: UPON BOARDING SMELLED FOWL ODOR THAT WAS A COMBINATION OF BARNYARD OILY BURNING THAT CONTINUED THROUGHOUT THE FLIGHT. REPLACED APU OIL COOLING FAN PER AMM 49-52-51 (AALA202108305659) AND APU OIL COOLER (AALA202108309224) PER AMM 49-91-44Aug 26, 2021 · N139AN · Airbus A321231
Back to JASC 4990