JASC 4970
Service difficulty reports · 272
Reports filed under 4970 · APU Indicating 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 = '4970' 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 = '4970' 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 CALA2013111893011Warning System · activatedAPU FAULT IN FLT, RTFL.SDR CALA2013103192549Warning System · activated"APU CONTROL" DISPLAYED ON LOWER EICAS. APU OPERATIONAL WITH MESSAGE 49-12990 AS A LATCHED MESSAGE. IAW FIM 49-20 & PERFORM TASK 813. PLEASE PERFORM AS SOON AS POSSIBLE. MAKE SURE TO CHECK MAG PLUGS PER NOTE: C.(5). OIL FILTERS PCN: 265-0415 TWO EACH WITH SDR CALA2013102592397Warning System · activated"APU CONTROL" DISPLAYED ON LOWER EICAS.SDR ASAA2013102296225Module · failedDURING PRESSURIZATION CHECK, A LOUD NOISE WAS HEARD FROM APU AIR INLET. ACFT GROUNDED. ACCOMPLISHED CHECK OF APU AND ACFT WIRING AND RESISTANCE CHECKS OF SAME. REF FIM TASK 49-70, TASK 806. ALL CHECKED OK. REPLACED DATA MEMORY MODULE. INSTALLATION TEST PASSSDR CALA2013092791508Sensor · faultyAPU AUTO SHUT DOWN, CAUSING GATE RETURN. TROUBLE SHOT IAW FIM 49-1 1-00, FOUND REVERSE FLOW ON BITE. R & R INLET TEMPERATURE SENSOR IAW AMM. R & R FLOW SENSING MODULE IAW AMM. ALL OPERATIONS & LEAKS CHECK GOOD AT THIS TIME. APU OK TO CONTINUE.SDR CALA2013082290654Status Message · activatedAPU CONTROL STATUS MESSAGE RECEIVED.SDR REXA2013082001471Warning Light · false activationENROUTE WITH APU RUNNING, SHUTDOWN APU AND APU DOOR OPEN CAUTION ILLUMINATED. FOLLOWED CH7 PROCEDURE AND STARTED THE APU AND DURING START HAD A MAST WARN ON APU FOR ABOUT 2-3 SECONDS INDICATING APU FIRE. START ABORTED MAST WARN WENT OUT AND HAD APU SOV CLSD SDR ASAA2013071295573Module · faultedAFTER LANDING ATTEMPTED APU START. NO START & FAULT LIGHT ILLUMINATED IAW QRH, SHUTOFF APU, WAITED FIVE MINUTES. AFTER FAULT LIGHT WENT OUT AND TRIED ANOTHER START, ANOTHER FAULT LIGHT. ACFT GROUNDED. ACCOMP APU BITE, BITE SHOWS SEVERAL FAULTS. CLEARED ALSDR ASAA2013071295572Sensor · faultedWHILE ACCOMPLISHING T/C 78349002 FOUND APU CURRENT STATES PAGE SHOW MSG 49-61262 SPEED SENSOR 2 SHOW OPEN CIRCUIT. ACFT GROUNDED. REPLACED APU SPEED SENSOR IAW AMM 49-61-21/401. APU OPS CHECK OK. SENSOR LEAK CHECK OK APU BITE NO MORE WITH OUT CURRENT FAULTSSDR UALA2013060503909Indication Sys · malfunctionedAPU OIL PRESSURE INDICATION BLANK.SDR ASAA2013013193803Module · malfunctionedMX CONTROL REPORTS APU SN INCORRECT ON CDU. APU CT5ATP DATA IS BEING RECORDED UNDER CORRECT APU SN AND VALID TEMP DATA IS BEING RECORDED. R & R APU DMM IAW AMM REF 49-72-11-000-801/49-72-11-400-801. OPS CKS GOOD.SDR ASAA2013012693770Module · failedON PARKING, APU WAS STARTED AND PUT ON THE BUS. IT THEN SHUTDOWN WITH A FAULT LIGHT ILLUMINATED. APU VOLTS & FREQS OK. APU MX HISTORY PAGE SHOWS 99 FAULTS (EVERY APU CYCLE) MSG 49-72103, DATA MEMORY MODULE CIRCUIT FAILURE. ACCOMPLISHED FIM 49-70, TASK 806, SDR ASAA2012123193592Sensor · malfunctionedAPU CTS ATP TREND DATA SHOWS MES EGT IS AT OR NEAR THE ESTABLISHED THRESHOLD. INDICATION ERRORS ARE SUSPECT. ACFT GROUNDED. R & R APU INLET TEMP SENSOR (T2). REMOVED THE INLET PRESSURE SENSOR (P2). EXAMINED THE ORFICE IN THE SENSOR TO MAKE SURE IT IS NOT BLSDR ASAA2012120593411Sensor · failedAPU FAULT LIGHT ILLUMINATED AFTER APU SHUTDOWN. FAULT LIGHT EXTINGUISHED AFTER APPROX 3 MINUTES. PERFORMED APU BITE TEST IAW FIM 49-60-801, FAULT CODE 49-61224 DISPLAYED, INLET TEMP SENSOR SHOWS OUT OF RANGE HIGH. R & R INLET TEMP SENSOR IAW MM 49-61-31. RSDR ASAA2012120493412Sensor · malfunctionedAPU CTSATP TREND DATA SHOWS MES EGT IS AT OR NEAR THE ESTABLISHED THRESHOLD. INDICATION ERRORS ARE SUSPECT. R & R APU INLET TEMP (T2) SENSOR IAW AMM 49-61-31. REMOVED CLEANED AND RE-INSTALLED APU INLET PRESSURE (P2) SENSOR IAW AMM 49-52-31. PERFORMED APU OPSDR UIEA2012062500284Hour Meter · inoperativeAPU HOURS METER NOT OPERATING. R & R APU HOUR METER IAW AMM 49-73-00 IAW AMM 49-73-00. OPS CHECKED GOOD.SDR VNAA2012052700021Warning System · false activationCREW REPORTED APU OIL PRESSURE CAUTION MESSAGE IN FLIGHT. CREW DIVERTED AND LANDED WITHOUT INCIDENT. MAINTENANCE INSPECTED AND PERFORMED CHECKS ON APU USING AIRCRAFT MAINTENANCE MANUALS. NO DEFECTS NOTED. AIRCRAFT RELEASED FOR SERVICE.SDR UALA2012041702304Controller · faultyAPU ECU FAULTS NR 2 TC RAKE, EVEN AFTER ECU MEMORY CLEAR AND RE-RUNNING APU. IT FAULTS THAT UNIT ON ALL 5 SW SELECTIONS. REPLACED NR 2 TC RAKE PROBE, STILL HITS. SUSPECT ECU. ON ORDER 563-9004. REPLACED APU CONTROLLER PER MM. NO FAULTS ON 3 RUNS.SDR ASAA12511243Sensor · faultyAPU CT5 ATP EGT HAS HISTORY OF INDICATING HIGH AND ERRONEOUS. INDICATION ERRORS ARE SUSPECT. REMOVED AND REPLACED INLET TEMP SENSOR T2. INSTALLATION TEST GOOD AND BITE TEST GOOD. REF AMM 49 61 31 49 61 00.SDR ASAA12511218Unknown · malfunctionedAPU FAULT LIGHT DURING START ATTEMPT. OPERATED APU REF AMM 49 11 00 860 801. APU OPS CHECKS GOOD. PERFORMED APU BITE REF AMM 49 61 00 700 801. NON EW FAULTS FOUND. CANNOT DUPLICATE DEFECT. REPLACED APU STARTER GENERATOR REF AMM 49 41 21 400 801 AND 000 8SDR ASAA12511179Sensor · defectivePOWERPLANT ENGINEERING REPORTS THAT THE APU CT5ATP EGT IS TRENDING TOWARD THE THRESHOLD. REPLACED APU INLET TEMP SENSOR WITH NEW. REF: AMM 49 61 31 & TESTED REF AMM 49 61 00 700 801. ALL TESTS CHECK GOOD. APU ALSO RAN 3 TIMES NO FMC RUN FAULTS.SDR ASAA12511163Sensor · faultyAPU CT5ATP EGT HAS HISTORY OF INDICATING LOW AND ERRONEOUS. INDICATION ERRORS ARE SUSPECT. REPLACED APU INLET TEMP SENSOR PER MM 49 61 31 000 801 / MM 49 61 31 400 801. PERF APU BITE PER MM 49 61 00 700 801 NO FAULTS. PRIOR TO SENSOR REPLACEMENT INPUT MONISDR ASAA12511153Warning System · false activationAPU OVERSPEED LIGHT ILLUMINATED ON CLIMB (~FL290 NON ETOPS AIRSPACE). DIVERSION TIME 35 MINUTES. PERFORMED APU BITE TASK 49 60 FOUND MAINT MSG 49 31014 APU OVERSPEED. PERFORMED TASK 49 30 00 810 802. NO FAULTS FOUND. PERFORMED APU OPERATIONAL TEST PER AMSDR ASAA1251097Sensor · defectiveAPU CT5ATP EGT HAS HISTORY OF INDICATING LOW AND ERRONEOUS. INDICATION ERRORS ARE SUSPECT. REMOVED AND REPLACED INLET TEMPERATURE SENSOR PER MM 49 61 31.SDR ASAA12511075Sensor · defectiveDURING TAXI OUT THE APU WAS SHUT DOWN. SHORTLY AFTER THE APU FAULT LIGHT ILLUMINATED. THE LIGHT WENT OUT ABOUT 9 MINUTES LATER. VERIFIED FAULT FROM CDU ON FLT LEGS 0 1 & 2. REPLACED INLET TEMP SENSOR REF MM 49 61 31 NO FAULT FOUND ON CDU AFTER REPLACEMENT SDR ASAA12511071Sensor · defectiveAPU HAS HISTORY OF COLD SOAK START FAIL ON FIRST 2 START ATTEMPTS. TO ASSIST ENGINEERING REQUESTS BITE CHECK DATA. REPLACED INLET TEMP SENSOR PER MM 49 61 31 00 801 AND MM 49 61 31 400 801, PERFORMED APU BITE PROCEDURE 49 61 00 700 801 CURRENT STATUS PAGE NOSDR ASAA1251005Sensor · faultyAPU EGT (CT5ATP) TREND DATA SHOWS A SUDDEN SHIFT. INDICATION ERRORS ARE SUSPECT. REPLACED APU INLET TEMP SENSOR (T2) REF MM 49 61 31 000 801 AND 49 61 31 400 801.SDR ASAA12510987Sensor · faultyAPU CT5ATP EGT HAS HISTORY OF INDICATING LOW AND ERRONEOUS. INDICATION ERRORS ARE SUSPECT. REPLACED APU INLET TEMP SENSOR (T2) IAW AMM 49 61 31. OPS CHECK GOOD.SDR ASAA12510963Sensor · defectiveAPU EGT (CT5ATP) TREND DATA SHOWS A SUDDEN SHIFT. INDICATION ERRORS ARE SUSPECT. REPLACED APU INLET TEMP SENSOR REF MM 49 61 31, OPS CHECK IS GOOD.SDR ASAA12510938Sensor · faultyAPU EGT HAS HISTORY OF INDICATING LOW AND ERRONEOUS. REPLACED APU INLET TEMP SENSOR PER AMM 49 61 31 OK.SDR ASAA12510896Sensor · faultyAPU EGT HAS HISTORY OF INDICATING LOW AND ERRONEOUS. REMOVED INLET TEMP SENSOR REF MM 49 61 31 000 801. ACCOMPLISHED SENSOR INSTALLATION TEST REF MM 49 61 31 400 801, NO FAULTS LOGGED CHECKS GOOD.SDR MYWA110133Warning System · activatedETOPS SIGNIFICANT SYSTEM: APU OVERSPEED LIGHT ILLUMINATED DURING START SEQUENCE.SDR ASAA11510650Warning System · false activationAPU FAULT LIGHT ON START. PERFORMED APU BITE MX MES 49 41010. PERFORMED FIM TASK 49 40 00 810 801 NO ACCELERATION SHUTDOWN FOR FAULT 49 41010. NO OTHER FAULTS FOUND CURRENT STATUS NO FAULT FOUND. GROUND VERIFICATION OPS CHECKS NORMAL. OK FOR CONTINUED SERVSDR VNAA2011111500006Thermocouple · faultyCREW REPORTED APU OVERTEMP WHILE ON APPROACH TO TYS. CREW LANDED IN TYS WITHOUT FURTHER INCIDENT. MAINTENANCE TROUBLESHOT APU, REMOVED AND REPLACED APU THERMOCOUPLE AND PERFORMED CHECKS USING AIRCRAFT MAINTENANCE MANUALS. AIRCRAFT RELEASED FOR SERVICE.SDR UALA2011110405997Unknown · malfunctionedAPU CONTROL MESSAGE PRESENT. MESSAGE 49-10760. "ELECT. MOTOR HAS BRUSH WEAR" --INF- :NOTE: APU ELECT STARTER & START CONTACTOR REPLACED 16OCT2011 FOR SAME MSG. REF: FIM 49-40 AND PERFORM TASK 807 ESPECIALLY THE PIN, WIRE CHECKS. IF SIGNED OFF AS "OPS OK" IT SDR REXA201100784Warning System · false activationAFTER APU IN FLT AND ABOUT 30 SEC AFTER BLEEDS WERE TRANSFERED TO THE APU, RECEIVED APU OVERTEMP WARNING MSG FOR ABOUT 5 SECS THEN BACK OUT. PERFORMED OP CHECK OF APU IAW AMM 49-10-00. OP CHECK NORMAL. OK FOR SERVICE.SDR ASAA11510577Warning System · intermittentAPU FAULT LIGHT ON START UP TAXIING INTO GATE SAN. PERFORMED FIM TASK 49 40 00 810 821 FOUND TO BE INTERMITTENT FAULT OP`S CHECKED GOOD.SDR REXA201100639Warning System · activatedAIRCRAFT DIVERTED INTO TYS FOR APU OIL TEMP CAUTION AIRCRAFT DIVERTED INTO TYS AND MAINT IS IN THE PROCESS OF T/SHOOTING TO REPAIR AS REQUIRED.SDR HALA2011091900408Bolt · brokenETOPS SIGNIFICANT SYS - WHILE REMOVING APU INLET TEMP SENSOR ONE BOLT SHEARED OFF. C/W APU CHANGE IAW HAL M266-767, APU HRS 8152.2 AT TIME OF APU REPLACEMENT. OPS AND LEAK CHECKED GOOD.SDR UALA2011080103988Hour Meter · failedAPU HOUR METER IS STUCK AT 338.0. REPLACED APU HOUR METER PER MM. CHECKED OKAY.SDR USAA2011072900007Tach Generator · leakingON DESCENT INTO CLT, CREW REPORTED THE AIR CONDITION SYSTEM STARTING STINKING, IT SMELLS LIKE A DIRTY SOCK. MAINTENANCE ACCOMPLISHED J/C 03L00021001. FOUND APU TACH GEN LEAKING OIL. REMOVED AND REPLACED SAME PER 49-61-61. ALSO, ENGINE BOROSCOPE FOUND NO OISDR MYWA110073Warning System · intermittentETOPS SIGNIFICANT SYSTEM: APU FAULT LIGHT 492-020-00. PERFORMED APU BITE TEST IAW FIM 49-60 TASK 801 FOUND FAULT TO BE INTERMITTENT LIGHT EXTINGUISHED OK TO CONTINUE SERVICE.SDR MYWA110057Warning System · malfunctionedETOPS SIGNIFICANT SYSTEM: APU LIGHT ON DURING RECALL. RE-BOOT THE A/C BITE AND OPS CHECK OK IAW AMM 49-11-00 & 49-61-00. NO FAULTS NOTED.SDR ASAA1159729Bulb · defectiveAPU TREND DATA CONTINUES TO REPORT CT5ATP EGT TEMPS THAT ARE HIGHER THAN EXPECTED. REPLACED T2 APU INLET TEMPERATURE REF AMM TASK 49 61 31.SDR ASAA1159451Fuel Nozzle · malfunctionedAPU CT5ATP EGT TREND DATA SHOWS EGT HAS SHIFTED ABOVE THE ESTABLISHED THRESHOLD. REPLACED 10 APU FUEL NOZZLES PER MM 49-31-14-000-801 AND MM 49-31-14-400-801. STARTED AND RAN APU FOR 5 MINS NO LEAKS NOTED.SDR VNAA2011041400010Warning System · false activationCREW REPORTED APU OIL TEMP AMBER MESSAGE WHILE CLIMBING THROUGH FL240 EN ROUTE FROM PHL TO AGS. CREW DIVERTED TO DCA BECAUSE NR 1 GENERATOR WAS DEFERRED AND LANDED WITHOUT INCIDENT. MAINTENANCE TROUBLESHOT APU AND PERFORMED CHECKS USING AIRCRAFT MAINTENANCE SDR ASAA1159364Warning System · false activationAPU MAINT LIGHT ILLUMINATED AFTER APU START DURING TAXI IN. PERFORMED BITE CHECK ON CDU PER AMM 49 61 00 700 801 AND NO FAULTS FOUND WITH THE LAST 30 DAYS CHECKED APU OIL AS FULL AND OPERATED APU WITH NO FAULTS NOTED.SDR ASAA1159352Warning System · false activationAPU FAULT LIGHT ILLUMINATED DURING APU START ON TAXI IN APU DID NOT START. ACCOMP APU BITE TEST ON CDU. FOUND FAULT CODE 49 41011 (NO FLAME SHUTDOWN) ACCOMP. FAULT ISOLATION PROCEDURES. OPERATED APU. APU STARTED & OPS CK'D GOOD. ACCOMP APU BITE TEST AGAISDR ASAA1159341Warning System · false activationAPU BLUE "MAINT" LIGHT ILLUMINATED. PERFORMED FIM 49 15 00 810 801. APU BITE TEST NORMAL. MAINT LIGHT EXTINGUISHED, OPS CHECK NORMAL.SDR ASAA1159086Warning System · intermittentAFTER PARKING AT GATE SWITCHED TO GROUND POWER. POWER SUBSQUENTLY DROPPED OFF AND AIRCRAFT WENT TO NO POWER. DURING BATTERY START OF APU EGT WENT TO 1,000 DEGREES AND HUNG UP THERE. WE SHUT IT OFF AND TRIED A SECOND TIME. SECOND START WAS SUCCESSFUL AFTER
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