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.

SDR SIMA20210614004Unknown · odorODD ODOR COMING FROM APU BLEED WHEN APU BLEED WAS SELECTED.-C/A-PERFORMED FIM 21-20-00-810-801A AND ETN-EM-72-034 R10 COULD NOT DUPLICATE DISCREPANCY. NO ODORS FOUNDJun 14, 2021 · N607AE · Emb EMB145LRSDR UIEA2021061401347Clamp · leakingAPU AIR DROPS TO 5 PSI DURING ENGINE START/ SLOWLY RECOVERS. TESTED NEW ENG VALVE, AMM 49-53-07, NO HELP, REINSTALLED ORIGINAL VALVE ASSY. INSTALLED APU SURGE CONTROLER VALVE HOSE CLAMP IAW AMM 49-53-01. PERFORMED OPS CHECK ON THE APU SURGE VALVE PER AMM 4Jun 10, 2021 · N641GT · Boeing 76738ESDR UIEA2021060901301Actuator · faultedAPU BLEED AIR MAX 12 PSI, TOO LOW FOR ENGINE START(<P>FWD TO MDDR #148250 PER MEL 49-11-01-01, CAT C, DUE 18 JUN 21. PLACARD INSTALLED. REMOVED AND REPLACED ECU, NO HELP. REMOVED AND REPLACED SURGE VLV. NO HELP. INSPECTED SURGE VLV SENSE LINE AND IGV FREE PLAYJun 6, 2021 · N641GT · Boeing 76738ESDR SIMA20210517003O-Ring · leakingBLEED 1 LEAK CLIMBING THROUGH 8000. PERFOMED ARH STILL INDICATED LEAK. LOSS OF CABIN PRSSURE EMERGENCY DECLARED.SWAP A/C CONT -C/A-T/S IAW FIM 36-20-00-810-801-A. FOUND LEAK AT JOINT #21. RAR BLEED AIR O-RING IAW EMB 145 AMM 36-11-10. OPS CHECK GOOD. NO DEFECTMay 17, 2021 · N928AE · Emb EMB145LRSDR P5CA2021051000168Ecu · faultedAPU HAS NO DUCT PRESSURE.(<P>REMOVED AND REPLACED APU CONTROL UNIT ECU IAW AMM 49-61-05. OPS CHECKS GOOD AT THIS TIME.</P>)May 8, 2021 · N642GT · Boeing 7673Y0SDR UIEA2021043001030Unknown · unknownNO APU DUCT PRESSURE AFTER INITIAL APU START. APU SHUT DOWN AND RE-STARTED. APU BLEED VALVE SWITCH CYCLED, NO FAULTS NOTED. APU BLEED AIR OPS NORMAL AS PER AMM 49-00-00.Apr 30, 2021 · N1619A · Boeing 7673Y0SDR YENA2021043000298Control Valve · looseFLT # 192, TPA-BOS. LEVEL 2 ODOR EVENT DETECTED BY PREVIOUS FLIGHT CREW AND CURRENTLY DETECTED IN CABIN AND COCKPIT ( APU BLEED VALVE ) ; PER INFO NOTICE 2017-T015F, APPLIED MEL 36-12-02-A CAT C PER MCC. APU BLEED/LOAD CONTROL VALVE SECURED IN THE CLOSED POSIApr 29, 2021 · N564JB · Airbus A320232SDR UIEA2021042200956Clamp · unsecureAPU BLEED FAIL TRANSFERRED TO MEL 49-11-01-01 CAT C, FOUND DUCT CLAMP BETWEEN CATALYTIC OZONE CONVERTER AND LT FLOW CONTROL AND SHUTOFF VALVE LEAKING. REMOVED, REPOSITIONED, AND TORQUED CLAMP TO 55 INCH POUNDS IAW AMM 21-51-01. LEAK CHECK GOOD.Apr 22, 2021 · N1427A · Boeing 767306SDR UIEA2021041500906Module · malfunctionedNO AIR FROM APU.(<P>TRANSFER TO DMI 145336 PER MEL 48-11-01-01, CAT C.</P><P>19APR, CVG MX, LP 1444125, ITEM M6: REMOVED AND REPLACED FLOW SENSING MODULE IAW AMM 49-53-08, OPS CK GOOD. DMI 145336 CLEARED. PLACARDS REMOVED. ST 1821Z.Apr 14, 2021 · N1427A · Boeing 767306SDR GTIA2021041535683Apu Bay · odorFUME EVENT ON APPROACH TURNED OFF PACK 1 AND SMELL WENT AWAY ( PACKS A320 WITH MOD 31283/MP P7125 (FWC H2-F1 STND) AND WITH MOD. 30626/MP K6443 (ENHANCED ECS) - FAULT CAUTIONS ASSOCIATED WITH OPERATIVE SIDE NOT DISPLAYED )-PERFORMED INSPECTION OF THE APU #1 ANApr 12, 2021 · Airbus A320232SDR YENA2021041500232Apu · odorFLT 2459, BDL-FLL. AFTER FULL THRUST TAKE OFF DIRTY SOCKS SMELL FOR ABOUT 5 MINUTES. SMELL CLEARED UP UNTIL AFTER LANDING, ON TAXI IN SMELL RETURNED TILL ENGINE SHUTDOWN. ( APU SYSTEM ); PERFORMED INSP OF APU AREA IAW AMM 49-20-00. NO OIL OR LEAKS FOUND. PERFOApr 10, 2021 · N598JB · Airbus A320232SDR 4DPA2021040700001Seal · deteriorated"BLD 2 LEAK" WARNING MESSAGE ON EICAS, RED "LEAK" LIGHT ON BLEED 2 AIR CONDITIONING/PNEUMATIC PANEL IN FLIGHT AT 16000FT. "BLEED 1 LEAK" ON GROUND AFTER ENG SHUTDOWN WHILE ON APU BLEED.Apr 7, 2021 · N247JX · Emb EMB145LRSDR P5CA2021032400075Bleed Valve · faultedSTART VALVE LIGHT REMAINS ON BLEED AIR DROPS AND ENGINE N2 STOPS AT 14%.(<P>DEFERRED TO MEL 49-11-01A AND INSTALLED PLCD. CAT "C" PER DMI # 144280(M) PROCEDURE COMPLIED WITH. NOTIFIED TO MCC. T/I: JA 09:16Z.</P><P>ICN, 27MAR LP 1442679: T/S FOUND SURGE CONT VLMar 24, 2021 · N643GT · Boeing 7673JHFSDR UIEA2021031000511Module · malfunctionedAPU PNEUMATICS INOP ( AUXILIARY POWER UNIT, PNEUMATIC FUNCTION )(<P>TRANSFERRED TO MDDR 143579 IAW MEL 49-11-01-01, CAT C.</P><P>LP 1312385: REPLACED FLOW SENSING MODULE IAW 49-53-08. OPS CHECK GOOD. THIS CLOSES MDDR #143579. PLACARD REMOVED. TI: YK 1815Z.<BR Mar 9, 2021 · N1427A · Boeing 767306SDR UIEA2021030200463Ecu · inoperativeAPU PNUEMATICS INOP(<P>TRANSFER TO MDDR #143232, CAT C, PER DDG 49-11-01-01. DUE 12 MAR21. PLACARDS INSTALLED, MX ACTION COMPLIED WITH.</P><P>LP 1254846: T/S PER FIM 49-11 FT A21 FIG 130. NO MINI FLAG. REMOVED AND REPLACED ECU. OPS CHECK GOOD IAW AMM 49-61-05.Mar 2, 2021 · N1499A · Boeing 767328SDR YENA2021030300141Fan · leakingFLT 1111, JFK-CUR. RETURNED TO FIELD. EMERGENCY DECLARED. FUMES IN CABIN DIRTY SOCK SMELL BY F/A AND DHD FLIGHT CREW; C/W INFO NOTICE 2017-TO15F SECTION B - LEVEL 2 ODOR. FOUND OIL LEAK ON APU FAN ASSY GASKETS. R & R APU FAN ASSY PER AMM 49-52-51. OPS CHK OK. Feb 27, 2021 · N588JB · Airbus A320232SDR UIEA2021022400412Surge Valve · failedAPU INOP. SURGE WITH BOTH PACKS ON(<P>TRANSFER TO MDDR 142909 IAW MEL 49-11-01A CAT C DUE 06MAR21</P><P>LP:1329164 PERFORM BIT OF APU IAW FIM 49-11 FT 965 FOUND LEAK-TORN DUCT- SURGE VALVE. REMOVED AND REPLACED DUCT IAW AMM 49-53-01 PERFORMED OPS CHK FAILED DUFeb 24, 2021 · N1709A · Boeing 767375SDR YENA2021030100138Bleed Air Sys · odorFLT 927, EWR-MCO. ODOR ON DECENT PASSING THRU 18,000' FT. OBSERVED IN COCKPIT AND ENTIRE CABIN SEE REPORT. ( APU BLEED AIR SUPPLY SYSTEM ); APU BLEED ODOR RECLASSIFIIED AS A LEVEL 1 ODOR AFTER OPS CHECK SYSTEM. IN COMPLIANCE WITH INFO NOTICE 2017-T0155 SECTIONFeb 23, 2021 · N519JB · Airbus A320232SDR UIEA2021021200306Pressure Sensor · faultedAPU BLEED SYSTEM INOPERATIVE. REMOVED AND REPLACED APU COMP INLET PRESS SENSOR IAW 767 AMM 49-61-04. OPS CHK GOOD.Feb 14, 2021 · N1499A · Boeing 767328SDR UIEA2021020800241Control Valve · malfunctionedAPU PNEUMATIC FUNCTION INOP ( AUXILIARY POWER UNIT, PNEUMATIC FUNCTION )(<P>FWD TO MDDR# 142033. APU AIR INOP MEL 49-11-01-01.</P><P>07FEB21 - LP 1333515 - ITEM# 2 - BWI - REMOVED AND REPLACED APU SURGE CONTROL VALVE IAW 767 AMM 49-53-01; OPS CHECK GOOD, AT THFeb 7, 2021 · N1619A · Boeing 7673Y0SDR UIEA2021012500118Shutoff Valve · intermittentAPU BLEED AIR S/O VALVE OPERATIONS INTERMITTENTLY. REMOVED AND REPLACED APU BLEED AIR S/O VALVE, IAW AMM 36-11-10, OPERATIONS CHECK OK.Jan 23, 2021 · N641GT · Boeing 76738ESDR AALA202101069010Cooling Fan · leakingAIRCRAFT WAS GROUNDED. ON APPROACH 4000 FEET, FLIGHT ATTENDANTS REPORTED SMELLED OILY MUSTY SMELL. REPLACED APU COOLING FAN. ACCOMPLISHED A SATISFACTORY LEAK AND OPERATIONAL CHECK, PER AMM 49-52-51.Jan 5, 2021 · N144AN · Airbus A321231SDR UIEA2020122502615Control Valve · malfunctionedAPU DUCT PRESSURE SURGING 5 -15 PSI WITH PACKS RUNNING. AFTER TROUBLESHOOT AND RESET APU BLEED AIR AND CONTROL CB. DUCT PRESSURE NORMAL, PER MCC REQUEST APU PNEUMATICS DEFERRED TO MDDR 139986, CAT C, MCC TODD C LC 12:12Z, DDG 49-11-01-01. REPLACED APU SURGEDec 24, 2020 · N663GT · Boeing 767324SDR UIEA2020121402558Bleed Air Sys · malfunctionedNO DUCT PRESSURE AFTER BLOCK OUT. PERFORMED RESTART ON APU, IAW 49-00-00. DUCT PRESSURE NORMAL AFTER RESTART. APU OPERATIONS NORMAL.Dec 14, 2020 · N1489A · Boeing 76731KSDR UIEA2020120302516Control Valve · malfunctionedNO DUCT PRESS FOR ENGINE START. TRANSFER TO MDDR 138842, IAW MEL 49-11-01-01. MCC NOTIFIED PLACARD INSTALLED. REMOVED AND REPLACED APU SURGE CONTROL VALVE, IAW AMM 49-53-01. OPERATIONS CHECK GOOD. THIS CLEARS DMI 138842.Dec 2, 2020 · N1709A · Boeing 767375SDR UIEA2020113002472Pneumatic System · malfunctionedAPU PNEUMATIC FUNCTION INOPERABLE. ENTERED INTO DMI NR 138661, IAW MEL 49-11-01-01, CAT C. PERFORMED OPERATIONAL CHECK, NO FAULTS NOTED AT THIS TIME. THIS CLEARS DMI 138661.Nov 29, 2020 · N1361A · Boeing 76731BSDR UIEA2020112502459Duct · damagedAPU FAULT ON TAXI IN. FOUND HOLE IN APU EXHAUST DUCT. REMOVED AND REPLACED DUCT, IAW 49-52-00.Nov 25, 2020 · N1499A · Boeing 767328SDR UIEA2020111302390Control Valve · low pressureAPU PNEUMATIC FUNCTION INOPERABLE LOW PRESSURE. RT ENGINE STARTER EICAS DURING START. N2 ROTATION MINIMAL PULLED BACK INTO GATE, NO FLY. APU BLEED LOW PRESS, REMOVED AND REPLACED APU SURGE CONTROL VALVE, IAW B767 AMM 49-53-01. OPERATIONS CHECK SATISFACTORNov 14, 2020 · N1709A · Boeing 767375SDR P5CA2020100640338Boot · damagedFOUND DAMAGE ON BOOT FOR APU SURGE BLEED VLV DUCT. REMOVED & REPLACED BOOT, IAW AMM 49-53-01-401. OPERATIONS CHECK OK, NO LEAK FOUND.Oct 3, 2020 · N644GT · Boeing 7673JHFSDR UIEA2020100292132Duct · damagedAPU SURGE DUCT HAS HOLE IN IT. REMOVED AND REPLACED APU DUCT, IAW B767 AMM 20-11-01. PERFORMED OPERATIONS CHECK, IAW AMM 49-11-00. OPERATIONS CHECK GOOD.Sep 29, 2020 · N1229A · Boeing 767306SDR DXTR2020100101Bleed Air Sys · hotDURING AND AFTER APU START UP IN FLIGHT WITH APU BLEED OFF WE HAD AN ELECTRICAL SMOKE SMELL COMING FROM THE COCKPIT GASPERS. AFTER SHUTDOWN OF THE APU THE SMELL WENT AWAY. FOUND WIRE BUNDLE DAMAGED FROM APU BLEED DUCT COUPLING IN TAIL CONE. REMOVED SECTION OSep 29, 2020 · N388QS · Cessna 680CESDR UIEA2020092512044Unknown · unknownAPU NO PNEUMATIC OUTPUT. APU RESTARTED, ALL PNEU DUCT PRESSURE NORMAL, IAW AMM 49-11-00. OK FOR SERVICE.Sep 21, 2020 · N641GT · Boeing 76738ESDR UIEA2020092200023Control Valve · malfunctionedAPU PNEUMATIC PRESSURE INSUFFICIENT TO START ENGINES. ISSUED MDDR 134719, IAW MEL 49-11-01A, CAT C, DUE 30SEP20 DISPATCH 1457Z ST. ITEM M4: R & R APU SURGE CONTROL VALVE, IAW AMM 49-53-01. OPS CHECK GOOD. THIS CLEARS DMI 134719. PLACARD REMOVED. MCC NOTISep 20, 2020 · N1709A · Boeing 767375SDR UIEA2020092212039Pneumatic System · malfunctionedAPU AIR PNEUMATIC FUNCTION INOP AUXILIARY POWER UNIT, PNEUMATIC FUNCTION. DEFERRED IAW DDG 49-11-01-01 MDDR 134624, CAT C, DISPATCH 0712Z JJT. PERFORMED OPS CHECK OF APU PNEUMATICS, IAW AMM 49-11-00, OPS CHECK GOOD. PERFORMED BITE OF ECU, NO PREVIOUS FAULTSSep 18, 2020 · N1489A · Boeing 76731KSDR AALA202009119013Sensor · unserviceableAIRCRAFT GROUNDED, AT FL370 IN CRUISE IAS DISAGREE: AIRSPEED ON CAPTAIN`S SIDE DECREASED TO 120KTS, F/O`S WAS IN RED BAND; CAPTAIN`S ALTITUDE BEGAN CLIMB, F/O`S BEGAN DESCENT (STBY A/S AND ALT INDICATED NORMAL AT ALL TIMES). RAN QRC AND QRH PROCEDURE. AN EMEAug 29, 2020 · N806NN · Boeing 737823SDR YENA2020081900432Apu · odorFLT # 1827, EWR-MCO. MODERATE DIRTY SOCKS SMELL IN ROUTE ; T/S PER TSM 05-50-00-810-831-A. SOURCE OF SMELL FROM APU BLEED. APU BLEED REMAINS ON MEL. PERFORMED ECS DECONTAMINATION OF PACK 1-2, RECIRC FILTERS ALSO REPLACED, ENG INSPECTION'S NORMAL. PACK 1-2 OAug 15, 2020 · N784JB · Airbus A320232SDR P5CA2020081410283Valve · malfunctionedAPU PNEUMATIC FUNCTION INOP (AUXILIARY POWER UNIT, PNEUMATIC FUNCTION)(<P>TRANSFERRED TO MEL 49-11-01-01, MDDR 132671 RAISED, CAT 'C'.<BR /></P><P>LP 1131759 ITEM 7: IAW AMM 49-53-01/401 REMOVED & REPLACED SURGE CONTROL VALVE AND APU BLEED SYSTEM NORMAL WITH EAug 10, 2020 · N643GT · Boeing 7673JHFSDR UIEA2020081281731Flex Hose · crackedDURING INSPECTION OF APU, FOUND CRACK ON APU SURGE FLEX TUBE.(<P>REMOVED AND REPLACED APU SURGE FLEX TUBE IAW B767 AMM 49-53-01, OPS AND LEAK CHECK GOOD.</P>)Aug 8, 2020 · N1373A · Boeing 76731KSDR QXEA2020080700233Bleed Air Sys · smokeLAVATORY SMOKE DETECTOR WENT OFF, CABIN FILLED WITH WHITE SMOKE, APPROXIMATELY TWO MINUTES AFTER, APU BLEED WAS SELECTED. REMOVED FROM SERVICE. DETERMINED SMOKE COMING FROM APU BLEED AIR. PERFORMED AN OPS CHECK OF THE LAV SMOKE DETECTOR IAW AMM TASK 26-1Aug 6, 2020 · N451QX · Bombdr DHC8402SDR UIEA2020080511659Shutoff Valve · faultedAFTER ENG START EICAS MSG APU BLEED VAL AND VALVE LT ILLUMINATED IN APU SWITCH. APU SHUTOFF VALVE LOCKED OUT. REMOVED AND REPLACED APU AIR SUPPLY SHUT OFF VALVE, IAW AMM 36-11-10, LEAK CHK OK AT THIS TIME.Jul 30, 2020 · N1489A · Boeing 76731KSDR UIEA2020072801638Control Valve · failedAPU AIR PRESSURE DROPS TO 10 PSI AND STAYS AT 10 PSI DURING START. REMOVED AND REPLACED APU SURGE CONTROL VALVE IAW AMM 49-53-01, OPS AND LEAK CHECKED GOOD.Jul 28, 2020 · N1427A · Boeing 767306SDR UIEA2020073171619Actuator · malfunctionedNO APU DUCT PRESSURE FOR ENGINE START. REMOVED AND REPLACED IGV ACTUATOR. OPS CHECK GOOD IAW AMM 49-52-01.Jul 27, 2020 · N1511A · Boeing 767383SDR UIEA2020072631604Duct · tornDURING APU INSPECTION, FOUND AIR SURGE DUCT TORN BEFORE SURGE VALVE. REMOVED AND REPLACED AIR SURGE DUCT BEFORE SURGE VALVE IAW AMM 49-53-01. OPS CHECKED NORMAL. NO LEAKS DETECTED.Jul 22, 2020 · N1399A · Boeing 767306SDR UIEA2020072001579Unknown · unknownNO APU AIR PRESSURE AFTER ENG SHUTDOWN. SHUTDOWN APU AND RESTARTED IAW AMM 49-11-00. OPS CHECKED GOOD.Jul 18, 2020 · N641GT · Boeing 76738ESDR UIEA2020072001581Gasket · missingAPU PNEUMATICS INOPERATIVE. FOUND A GASKET MISSING FROM THE FLOW SENSING MODULE. REPLACED THE GASKET IAW AMM 49-53-08, OPS NORMAL. OBSERVED APU BULK PRESSURE @ 30PSI, PERFORMED ENG RUNS IAW AMM 71-00-00. OPS GOOD.Jul 18, 2020 · N1487A · Boeing 76731KSDR UIEA2020072171569Transducer · malfunctionedAPU AIR RIGHT DUCT PRESSURE INDICATING 0 ON DUCT PRESSURE GAUGE AND ECS. REMOVED AND REPLACED THE RT BLEED PRESSURE TRANSDUCER IAW AMM 36-21-01, OPS CHECK GOOD.Jul 17, 2020 · N641GT · Boeing 76738ESDR UIEA2020072001584Bleed Valve · unknownAPU PNEUMATICS INOPERATIVE. PERFORMED TROUBLESHOOTING OF APU BLEED SYSTEM & NOTED A BAD APU BLEED AIR VALVE IAW AMM 49-11-00. REACTIVATED VALVE AND PERFORMED APU OPS CHECK IAW AMM 49-11-00 AND ECU BITE CHECK IAW FIM 49-11 F/T 987. APU BLEED SYSTEM OPERATESJul 17, 2020 · N1327A · Boeing 76737DSDR UIEA2020070201454Control Valve · malfunctionedAPU PNEUMATIC INOP (AUXILIARY POWER UNIT, PNEUMATIC FUNCTION). PERFORMED BITE CHECK OF SYSTEM PER AMM 49-61-05. NO FAULTS NOTED. APU START 1ST ATTEMPT. CB BREAKER S-23 C VALVE VERIFIED IN OFF POSITIONS PER 36-11-04. REMOVED AND REPLACED SURGE CONTROL VALVJun 29, 2020 · N1181A · Boeing 7673Y0SDR P5CA2020063000209Sleeve · brokenFOUND APU SURGE SLEEVE BROKEN. PER AMM 49-53-01-004-001 / 49-53-01-404-010 REV 130 REPLACE APU SURGE SLEEVE, OPERATION AND CONDITION CHECK NORMAL, NO LEAK FOUND.Jun 29, 2020 · N644GT · Boeing 7673JHFSDR UIEA2020061701303Valve · malfunctionedAPU DUCT PRESSURE LOW. REMOVED AND REPLACED AIR SUPPLY BITE MODULE, NO HELP, APU DUCT PRESS STILL LOW. LOCKED OUT VALVE. IAW AMM 36-11-00 REMOVED AND REPLACED APU SURGE CONTROL VALVE IAW AMM 49-53-01. OPS CHECKED GOOD.Jun 17, 2020 · N640GT · Boeing 7673S1
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