JASC 4950
Service difficulty reports · 951
Reports filed under 4950 · APU Bleed Air 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 = '4950' 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 = '4950' 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 UIEA2019100397588Surge Valve · inoperativeAPU PNEUMATIC FUNCTION INOPERATIVE. REMOVED AND REPLACED APU SURGE VALVE IAW AMM 49-53-01, OPS CHECKED GOOD. PERFORMED OPS TEST OF APU IAW AMM 49-05-00, OPS CHECKED GOOD.SDR P5CA2019091900185Bleed Valve · faultyRECEIVED "APU BLEED VALVE" ALERT ON ENGINE START. APU INOP. TRANSFERRED TO MDDR #117950 IAW MEL 49-11-01A, CAT 'C', DUE DATE: 29-SEP-19 LP 1107630 - M3: REMOVED AND REPLACED VALVE APU BLEED IAW AMM 36-11-10, OPS CHECK GOOD. APU BLEED WORKS NORMAL AT THE MOMENTSDR UIEA2019091805532Unknown · malfunctionedAPU GENERATING INSUFFUCUENT PSI FOR ENGINE START. LESS THAN 15 PSI, ADP WAS IN OFF POSITION. TRANSFERRED TO MDDR 117929 IAW DDG 49-11-01A, CAT 'C', DUE 29SEP19. MCC NOTIFIED AND PLACARDS INSTALLED. LP 1211031 - M1: AMENDED DDG 49-11-01A TO NEW DDG. REF 49-11-0SDR UIEA2019091805526Control Valve · malfunctionedVERY LOW DUCT PRESSURE DURING FIRST ENGINE START (RIGHT ENGINE), LONGER THAN NORMAL START PROCESS. TRANSFERRED TO MDDR 117914 IAW MEL 49-11-01-01, CAT "C", DUE 28-SEP-2019. MAINT ACTION C/W. LP 1210156 - M6: REMOVED AND REPLACED THE APU AIR SUPPLY SHUTOFF VALVSDR UIEA2019091805523Valve · malfunctionedAPU BLEED AIR INOP. REMOVED AND REPLACED APU BLEED AIR VALVE IAW AMM 36-11-10, OPS CHECK GOOD.SDR 9PMA2020042700004Bleed Valve · seizedPIC REPORTS APU FAILS TO START. UPON FURTHER INSPECTION FOUND BLEED AIR VALVE SEIZED IN CLOSED POSITION. NO FURTHER DAMAGE CAUSED TO AIRCRAFT, CREW OR PAX.SDR GTIA2019091534626Bleed Air Sys · contaminatedAPU BLEED AIR CONTAMINATED (QUALITY ODOR EVENT ) ( APU BLEED AIR SUPPLY SYSTEM ). ACCOMPLISHED TSM 05-50-00-810-931-A. PERFORMED DECONTAMINATION OF THE ENVIRONMENT CONTROL SYSTEM PER AMM 21-00-00-615-002-A (APU) & 21-00-00-615-004-A (ENGINE). NO ODOR NOTED. THSDR UIEA2019091205487Pump · malfunctionedDURING R ENG START, APU DUCT PRESSURE STARTED FLUCTUATING BETWEEN 15 - 30%. R ENG STARTER MESSAGE DISPLAYED @ APPROX 5% N2. TRANSFERRED TO MDDR # 117639 IAW MEL 49-11-01A, CAT C. DUE 22SEP19. DISP: ZH 10:45Z. LP 1086521 - M1: PRESSURIZED PNEU SYS IAW AMM 36-00SDR UIEA2019090605452Modulating Valve · malfunctionedDURING RIGHT ENGINE START, DUCT PRESSURE OSCILLATED BETWEEN 16 TO 18 PSI. N2 MAX MOTORING WAS 18.3%. TRANSFERRED TO MDDR 117406 IAW MEL 49-11-01-01, CAT "C". LP 1116286 - M3: PERFORMED THE PUSH AND PULL TEST ON IGV IAW AMM 49-52-02 (TEST GOOD), PERFORMED CHIP SDR UIEA2019090905467Unknown · malfunctionedAPU DUCT PRESSURE EXTREMELY WEAK DURING ENG 2 ENG START. PERFORMED ENGINE RUN IAW AMM 71-00-00. APU DUCT PRESSURE HOLD 30% DURING ENG START. NORMAL OPERATION OBSERVED. NO DISCREPANCY FOUND.SDR UIEA2019082805309Module · malfunctionedDURING ENGINE START, APU DUCT PRESSURE NO HIGHER THAN 15 PSI. IMPENDING HOT START ON #2 ENGINE, STOPPED START, RESTART SUCCESSFUL. NO EXCEEDANCES. REMOVED AND REPLACED FLOW SENSING MODULE IAW B767 AMM 49-53-08. OPS CHECK GOOD AT THIS TIME.SDR UIEA2019082705300Indication Sys · false indicationDURING ENGINE START, APU DUCT PRESSURE FALLS FROM 25 PSI TO LESS 15 PSI. N2 GETS TO NO MORE THAN 18% N2. NO START LIMITATIONS EXCEEDED. NOTED BY MX. PERFORMED APU BITE IAW AMM 49-11-00/958, OPS NORMAL, NO FAULTS NOTED. PERFORMED ENGINE RUN IAW AMM 71-00-00, ASDR SIMA201908221002Bleed Valve · failedAPU BLEED VALVE FAIL WITH THE OPEN INSCRIPTION ILLUMINATED. REMOVED AND REPLACED APU BLEED VALVE IAW AMM 36-12-03. OPC GOOD.SDR P5CA2019082090172Boot · leakingDUCT BOOTS HAS AIR LEAK FROM APU SURGE BLEED VLV EXH SIDE.(<P>REMOVED AND REPLACED DUCT BOOTS AT APU SURGE BLEED VLV EXH SIDE AND LEAK CK OK IAW AMM 49-11-00-201.</P>)SDR UIEA201908134995Filter · not reportedAPU PNEUMATICS FAIL ON PUSH BACK. PERFORMED APU BITE. ALL LEG NORMAL SHUTDOWN, OPS CHECK GOOD IAW FIM 49-11-00-1. ENG STARTED AND PACK MODE OPS CHECK GOOD. REMOVED AND REPLACED APU SURGE VALVE FILTER IAW AMM 49-53-06, OPS CHECKED GOOD.SDR HALA2019080650383Bleed Valve · inoperativeETOPS - APU BLEED VALVE FAULT ON ECAM. REMOVED AND REPLACED APU BLEED VALVE PER AMM 49-51-51-000-801-A. OPS CHECK OK PLACARD REMOVED LIDS CLEARED
VALVE, LOAD ASS OFF 33-4950-9-0002 02913 ON 33-4950-9-0002 02267SDR CA190805002Unknown · odor(CAN) SER - SMELL AFTER SWITCHING FROM ENGINE BLEED TO APU BLEED TAXI IN TO THE GATE WE NOTICED A LIGHT SMELL OF BURNT PLASTIC AS THE APU BLEED WAS TAKING OVER FROM THE ENG BLEED. SMELL DISAPPEARED AFTER 20 SECONDS. NO REPORT FROM THE CABIN. APU WAS KEPT RUNSDR UIEA2019080294882Isolation Valve · inoperativeAPU DID NOT MAKE 21 PSI FOR ENGINE START.(<P>TRANSFER TO MDDR 115491 IAW MEL 49-11-01A CAT C DUE 08AUG19.</P><P>LP 1097989 - M4: PERFORMED APU ECU BITE PROCEDURE IAW B767 AMM 49-61-05. DISCOVERED "APU CONTROL UNIT" FAULTS IN RECENT FAULT HISTORY. SUSPECT BAD ASDR KCSA2019072408Control Valve · malfunctionedAT 1800 FT ON FINAL APPROACH INTO CVG, WHEN SELECTING FLAPS 30, THE LEFT AL BUS FAILED. REMOVED AND REPLACED APU SURGE CONTROL VALVE IAW AMM 49-53-01 ALL CHECKS GOOD.SDR NACA2019072100089Control Valve · malfunctionedAPU SURGE PERFORM ECU TEST: REPLACED APU SURGE CONTROL VALVE IAW AMM 49-53-01 (ETOPS SS). WORKED DISCREPANCY ON NAC WO 116376, NR-00002.SDR UIEA2019072104799Pressure Sensor · faultyAPU WILL NOT START. (<P>PLACED APU ON MEL 49-11-01A, DMI 115095. PLACARDS INSTALLED, NO OTHER DEFECTS NOTED.</P><P>LP 1094367 - M10; SEE LOG PAGE 1094367 ITEM M8. CLEARED APU ECU CODES AU BRAKES IAW FIM 49-11-958. PERFORMED IDLE ENGINE RUNS IAW AMM 71-00-00. ASDR UIEA2019072204807Gasket · not reportedAPU ONLY DEVELOPS 14 PSI DURING FIRST ENGINE START. (<P>TRANSFERRED TO MDDR 115030 IAW DDG 49-11-01-01. (M) PROCEDURES C/W. PLACARDS INSTALLED. NO OTHER DEFECTS NOTED AT THIS TIME. </P><P>LP 1097588 - M4: REMOVED AND REPLACED THE APU FLOW SENSOR GASKET IAW AMSDR UIEA2019071604764Control Valve · malfunctionedDURING APU START ON TAXI IN, "APU FAULT" ON 2 START ATTEMPTS. (<P>APU INOP, TRANSFERRED TO MDDR # 114864 IAW DDG 49-11-01A, CAT 'C', DUE 26-JUL-19.</P><P>LOG PAGE 1080692- M6: REMOVED AND REPLACED SURGE CONTROL VALVE IAW AMM 49-53-01, OPS CHECK NORMAL AT THIS SDR UIEA2019071704779Module · defectiveAPU DUCT PRESSURE FLUCTUATING. (<P>REMOVED AND REPLACED APU FLOW CONTROL SENSOR MODULE IAW AMM 49-53-08.<BR /></P>)SDR UIEA2019071204738Bleed Air Sys · malfunctionedNO DUCT PRESSURE DURING APU OPERATION.(<P>TRANSFERRED TO MDDR 114602 PER 49-11-01-01 CAT C DUE 21JUL19 VALVE LOCKED OUT PER DDG 36-11-01.</P><P>LP 1080383 - M2: PUT THE AIRPLANE BACK IN ITS USUAL CONFIGURATION. PERFORMED FIM 36-10 FAULT TREE 839. NO FAULTS NOTSDR UIEA2019071004733Gasket · rupturedAPU DOES'T START. (<P>TRANSFER TO MDDR #114547 IAW MEL 49-11-01A CAT "C" DUE DATE 21-JUL-19 PLACARD INSTALLED. </P><P>LP 1050740 - M5: TS APU IAW FIM TASK 49-11 FAULT TREE 989, FOUND BOLT ON INLET GUIDE VANE ACTUATOR COVER IMPROPERLY INSTALLED. NEEDS BOLT, PN SDR UIEA2019071204739Unknown · malfunctionedNO APU DUCT PRESSURE ON STARTUP AFTER LANDING. (<P><SPAN>RE-STARTED APU DUCT PRESSURE NORMAL, NO FAULTS FOUND REF AMM 49-11-00 DUCT PRESSURE REF 49-52-00.</SPAN><BR DATA-MCE-BOGUS="1" /></P>)SDR UIEA2019063004623Isolation Valve · closedAPU ONLY PRODUCED 10 PSI FOR #1 ENGINE START. CROSS START REQUIRED TO START ENGINE 1.(<P>FOUND RT ISOLATION VALVE CLOSED. VALVE RESET, CYCLED, OPERATE OK REF 36-15-00.</P>)SDR UIEA201906214536Module · malfunctionedAPU REVERSE FLOW FAULT. REMOVED AND REPLACED FLOW SENSING MODULE IAW AMM 49-53-08. OPS CHECK GOOD.</P>)SDR AALA201906149013Actuator · odorAIRCRAFT WAS GROUNDED: ACID/ BURNING SMELL DESCENDING BELOW 15000 FEET INTO CLT. ACCOMPLISHED SMOKE/ODOR/FUME CHECKLIST AND LANDED UNEVENTFULLY, ODOR PERSISTED THROUGH LANDING/TAXI. MAINTENANCE REPLACED ACTUATOR PER AMM 49-23-51-000-004A AND PERFORMED SATISFSDR P5CA2019061210119Guide Vane · malfunctionedAPU BLEED VALVE EICAS MESSAGE. REMOVED AND REPLACED APU INLET GUIDE VANE, ACTUATOR BLEED SYSTEM OPS CHECK NORMAL PER AMM 49-52-02.SDR DALA2019060613435Apu · leakingCHEMICAL SMELL IN THE COCKPIT ON APU BLEED AIR, PACK TEMPS WERE ERRACTIC, FOUND APU LEAKING INTRNALLY FOUND OIL IN SHROUD AND PLENUM, REPLACED APUSDR UIEA2019060404386Sensor · failedNO APU DUCT PRESSURE. T/S APU, BITE THE ECU PER AMM/FIM 49-11 FT 98. FOUND P2 SENSOR FAULT. CLEARED ECU, CLEANED P2 SENSOR, RAN APU AND DUCT PRESSURE WAS 30/30 WITH 1 PACKS ON, 2 PACKS ON 25/26. REMOVED AND REPLACED INLET PRESSURE (P2) SENSOR IAW AMM 49-61-0SDR UIEA20190604377Valve · unknownNO APU DUCT PRESSURE. PERFORMED OPS CHECK PER AMM 49-11-00. CYCLED APU VALVE AND GOT DUCT PRESSURE. NO FURTHER DEFECTS NOTED.SDR UIEA2019052004236Shutoff Valve · malfunctionedAPU AIR INOP (<P>CHECKED AND DEFERRED TO MDDR 111916. CAT C APU AIR INOP PER DDG 49-11-01-01, APU VALVE LOCKED CLOSED PER DDG 36-11-01. </P><P>LP 1079436 - M6: T/S PER AMM 49-11-00.OPS CHECK APU WITH NO FAULTS NOTED. PER MCC DMI 111916 CONTINUES. C/W MEL 36-11SDR UIEA2019051504204Valve · malfunctionedAPU BLEED AIR INOP. WILL NOT SUPPLY PRESSURE.(<P>RESET APU BLEED AIR VALVE IAW AMM REF 36-11-00. APU BLEED NORMAL.</P>)SDR UIEA2019051304182Ecu · faultyAPU DUCT PRESS INTERMITTENT 0-15 PSI.(<P>REMOVED AND REPLACED APU ECU AND OPS CHECK IS GOOD AT THIS TIME IAW AMM 49-01-05.<BR /></P>)SDR UIEA2019051304194Boot · tornAPU FWD LT SIDE DUCT BOOT TORN(<P>REMOVED AND REPLACED DAMAGED DUCT BOOT ON LT SIDE OF APU IAW AMM 49-51-01. LEAK CHECK PERFORMED ON TC 2031</P>)SDR UIEA2019051304195Boot · tornAPU SIDE DUCT BOOT TORN(<P>REMOVED AND REPLACED DAMAGED DUCT BOOT ON LH SIDE OF APU IAW 49-51-01. LEAK CHECK PERFORMED ON TC T2031</P>)SDR P5CA2019050400060Duct · damaged"APU FAULT" ON TAXI IN(<P>ECU FAULT "NO LIGHT". TRANSFERRED TO DMI 111170 IAW MEL 49-11-01A, NT 1418Z. MX PROCEDURE C/W, EXPIRES 14MAY19.</P><P>LP 958478 - M2: FOUND HOLE IN APU AIR SURGE DUCT. REMOVED AND REPLACED AIR SURGE DUCT IAW AMM 20-11-01 AND 49-11-01SDR UIEA2019042303935Valve · damagedAPU SURGE VALVE FILTER THREADS DAMAGED INTERNALLY.(<P>REMOVED AND REPLACED APU SURGE VALVE REF B767 AMM 49-53-01.</P>)SDR UIEA2019041293835Module · inoperativeAPU PNEUMATIC FUNCTION INOP, ELECTRIC OK. R & R APU FLOW SENSING MODULE IAW AMM 49-53-08-004/404. OPS CHECKED OK.SDR UIEA2019040803827Duct · damagedFOUND HOLE IN FLEXIBLE SURGE DUCT. REPLACED FLEXIBLE SURGE DUCT IAW AMM 49-53-01. LEAK AND POS CHECK GOOD.SDR UIEA2019040503805Duct · puncturedDURING MAINT TASK ON APU, FOUND SURGE CONTROL VALVE RUBBER DUCT WITH HOLE IN IT.(<P>REMOVED AND REPLACED SURGE VALVE DUCT PER AMM 49-53-01. LEAK AND OPS CHECK GOOD.SDR UIEA2019040103740Sleeve · damagedAPU SURGE BLEED DUCTHAS A HOLE.(<P>REMOVED AND REPLACED APU SURGE BLEED DUCT SLEEVE. REF: AMM 79-53-01.</P>)SDR UIEA2019040103747Duct · tornTWO AIR COOLING DUCTS TORN ON APU.(<P>R/R BOTH AIR DUCTS COOLING DUCTS IAW AMM 49-51-00. NO LEAKS NOTED.</P>)SDR UIEA2019032903687Solenoid Valve · inoperativeAPU RELIABILITY COLD START ATTEMPTED ON FLT LEG CVG SCK SAT-50, FL 380 FAILED TO START ON 3 ATTEMPTS. APU INOP.(<P>TRANSFERRED TO MDDR 109396.<BR /></P><P>LP 1024068 - M3: TROUBLE SHOT APU IAW 49-11 FAULT TREE 991 UP TO BLOCK 11 SHEET 2. NO HELP. DMI # 109396 SDR CALA2019032900480Duct · crackedAPU BLEED DUCT LEAK FWD WALL OF AFT PIT. CAUSED HEAT DAMAGE TO ISOLATION AND A BURN ODOR REPORTED BY CREW.SDR UIEA201904013655Sensor · malfunctionedNO APU BLEED AIR PRESSURE AFTER APU START. REMOVED AND INSTALLED SERVICEABLE P2 SENSOR ON APU IAW AMM 49-61-04 OPS CHECKED AND FOUND OPERATING NORMAL AT THIS TIME. REMOVED AND REPLACED APU FLOW SENSING MODULE, OPS CHECK OF MODULE SATISFACTORY REF AMM 49-53-08SDR UIEA2019031603566Connector · damagedDURING APU SURGE VALVE FILTER CHANGE FOUND HOLE IN DUCTING SURGE VALVE. (<P>APU DEFERRED PER MEL 49-11-00A, AS PER MDDR 108778</P><P>LP 1022498-M6: REMOVED AND REPLACED APU SURGE DUCT FWD FLEX CONNECTOR IAW AMM 49-53-01. NO FURTHER DEFECTS NOTED AT THIS TIME.
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