JASC 3520
Service difficulty reports · 2,734
Reports filed under 3520 · Passenger Oxygen 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 = '3520' 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 = '3520' 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 98ZZZM39Oxygen Mask · failedOXYGEN MASK AT 16, 17, 18 RT HAS HOLE IN REBREATHER FELT, ON PER BOX. REPLACED OXYGEN MASK AT 16, 17, 18 ONE PER BOX. OPS LEAK AND FLOW CHECKS OK.SDR 98ZZZM38Oxygen Box · leakingOXYGEN BOX AT 6 LT LEAKS FROM MANIFOLD. REPLACED OXYGEN BOX ASSY AT 6 LT, OPS LEAKS, FLOW CHECKS OK.SDR 98ZZZM37Oxygen Line · leaking1 LT PSU OXYGEN BOX FEED LINE LEAKING. REMOVED AND REPLACED FEED LINE, LEAK AND OPS CHECKS, FLOW CHECKS OK.SDR VTZA97514Oxygen Mask · openedFLT 6595 - RDU-IAD- DURING TAXI, PASSENGER IN ROW 1BC PUSHED 02 MASK DEPLOY BUTTON AND THE MASK CASE OPENED BUT DID NOT DEPLOY MASK. AIRCRAFT RETURNED TO GATE WITH NO FURTHER PROBLEMS. MAINTENANCE INSPECTED AND OPENED DMI 56611, MEL 35-2. MAINTENANCE CLOSEDSDR UPS97224523Oxy Generator · activatedINSPECTION TYPE-N/A, 02 GENERATOR ACTIVATED DURING 02 DROP CHECK AT SEAT 6 DEF. REPLACED 02 GENERATOR.SDR CA971003003Line · melted(CAN) DURING ROUTINE INSPECTION OF OXYGEN SYSTEM IN AFT CABIN SIDE WALL SUBMITTER FOUND THAT A SECTION OF PLASTIC OXYGEN LINE NEAR THE BACK OF THE CABIN WAS FOUND MELTED. IN ADDITION, A SMALL SPOT WAS ALSO FOUND AT MID CABIN ON LEFT SIDE. SUBMITTER SUSPECTS THSDR 97ZZZX4689Sleeve · defectiveDEFECTIVE SLEEVE DISCOVERED ON OXYGEN GENERATOR ACTIVATION CABLE ASSY, PN 417N3137-20, WHEN PASSENGER SERVICE UNIT WAS LOWERED FOR OTHER MAINTENANCE.SDR MWEA97786Oxy Mask · out of adjustCLIMBING, O2 MASK DROPPED AS PRESS LT ON CAB INDICATED 8,500 FT AT APPROX 26,000 FT. MTC PERFORMED ADJUST TST IAW DC9MM 35-20-00. REINSTALLED MASK, REMOVED AND REPLACED O2 REGU IAW DC9MM35-20-1. PERFORMED TST AUTO PRESS SYS MM21-32-0, WITH SYS TESTING GOOD.SDR CA971016009Oxygen Regulator · failed(CAN) DURING NON PRESSURIZED FLIGHT WHILE AT 10,000 FEET THE PASSENGER CABIN OXYGEN MASKS DEPLOYED. MAINTENANCE ACTION FOUND OXYGEN REGULATOR HAD FAILED. OXYGEN REGULATOR REPLACED AND LEAK CHECK CARRIED OUT. TEST CHECKED SERVICEABLE AND OXYGEN MASKS RESTOWED.SDR DL757971654Psus · malfunctionedTHE FOLLOWING PSUS DID NOT OPEN WHEN O2 SYS ACTIVATED PASSING 36,000 FT, WHEN CABIN LOST PRESSURIZATION 2AB, 2CD, 23DEF, 24ABC, 34DEF, 37DEF. DNTC REPLACED ABOVE LISTED PSUS.SDR COMA9710345Electric Latch · shortedWHILE PERFORMING A C-1 CHECK ZONE 200 TASK NR 35-09 (VERIFY LATCH MECHANISM) IT WAS DISCOVERED THAT THE CIRCUIT BREAKER CB0067 WAS POPPING. UPON FURTHER INVESTIGATION, IT WAS DISCOVERED THAT THE ELECTRIC LATCH WAS SHORTED IN THE LAVATORY. THE LATCH WAS REPLASDR COMA9710338Solenoid · failedUPON COMPLIANCE OF C TASK 35-09, THE PAX OXYGEN MASK IN THE LAVATORY FAILED TO DROP. INVESTIGATION FOUND THE OXYGEN MASK DOOR LATCH SOLENOID FAILED. THE SOLENOID WAS REPLACED WITH A NEW PART. SYSTEM TESTED OK.SDR COMA9710332Solenoid · failedON C-CHECK TASK 35-09, THE PASSENGER OXYGEN MASKS AT SEAT 1BC FAILED TO DEPLOY. THE OXYGEN MASK DOOR SOLENOID AT THAT LOCATION WAS REPLACED, SYSTEM TESTS NORMAL.SDR G6OA011Switch · missingDURING C-CHECK MAINTENANCE, A PASSENGER OXYGEN CHECK WAS ACCOMPLISHED. THE LAVATORY OXYGEN MASK FAILED TO DEPLOY AT 14,440 FEET ALTITUDE. INVESTIGATION REVEALED THE ANEROID SWITCH HAD NOT BEEN INSTALLED. IT WAS DETERMINED THE ANEROID SWITCH AND ITS ASSOCIATESDR COMA9760112Relay · malfunctionTHE PASSENGER 02 MASK DEPLOYED DURING FLIGHT. REPLACED RELAY K4WQ.SDR DLL10971527Oxygen Mask · failed to dropFOLLOWING RAPID LOSS OF CABIN PRESURE AT FL 350, MASK AT SEAT 37 C, F, G DID NOT DROP. ALSO, MASK AT 36 E, F, G WERE TO SHORT. REPLACED PSU AT ALL LOCATIONS AND PERFORMED BITE TES, SYS CK NORMAL.SDR DLL10970763Psu · crackedPASSENGER O2 MASKS AT ROWS 37C DID NOT DEPLOY AUTOMATICALLY OR MANUALLY. ALSO, TUBES AT 36EFG WERE TOO SHORT. REPLACED PSU AT 36EFG AND PSU AT 37C. PERFORMED ADJUSTMENT AND TEST, CHECKS OK.SDR 97ZZZX2996Oxygen Mask · damagedATW - PASSENGER OXYGEN MASK RE-BREATHER FELT TORN AT SEATS 4, 8, AND 10 RT. REPLACED MASK ASSY, OPS FLOW, LEAK CHECKS OK.SDR UPS97222409Oxy Masks · deployedINSPECTION TYPE-N/A, ALL PAX O2 MASKS DEPLOYED REPACKED ALL O2 MASKS AS REQUIRED IAW 35-20-00 DUE TO INADVERTANT DEPLOYMENT, NO OTHER DEFECTS NOTED.SDR 9704099952Switch · failedDURING CLIMBOUT, OXYGEN MASKS DEPLOYED THROUGH AFT SECTION OF CABIN. FLIGHT CONTINUED TO DESTINATION AND LANDED WITHOUT INCIDENT. MAINTENANCE REPLACED FAILED ANEROID SWITCH. ALSO, REPLACED GENERATORS AND OPERATIONAL CHECK NORMAL.SDR GTIA9700190Oxygen Line · leakingYIP - DURING FUNCTIONAL CHECK OF OXYGEN MASK DEPLOYMENT TEST, FOUND DEFECTIVE LEAKING LINE AT SUPPLY MANIFOLD (L13 OVERHEAD PANEL LOCATION). REQUIRES LEAK CHECK. SERVICEABLE LINE INSTALLED IAW DC-9 MM 35-20-2. NO LEAKS NOTED. (X)SDR 97ZZZX1400Surge Valve · stickingPBI - DURING C/W CODE 352005 OF THE MIP 02 SYSTEM, PASS. - OPS TEST (PART OF OPS2 PACKAGE), NOTED THAT ALL PASSENGER MASKS FAILED TO DEPLOY AT PRESCRIBED CABIN ALTITUDE EVEN THOUGH 'OXYGEN ON' ANNUNCIATORS DID ILLUMINATE. DETERMINED THAT O2 DOWNSTREAM PRESSURSDR DL73K970231Solenoid · failedON OXYGEN SYSTEM TEST ROW 14ABC OXYGEN DOOR DID NOT OPEN. REPLACED DOOR LATCH ACTUATOR SOLENOID.SDR DL73K970158Oxy Mask · malfunctionedA/C SUFFERED PRESSURIZATION LOSS IN FLT AND ALL MASK DEPLOYED EXCEPT AT SEATS 14 ABC, 18 ABC, 4 DEF AND AT AFT FLT ATT JUMPSEAT. REPLACED SOLENOIDS AND PERFORMED MASK DROP TESTS.SDR AALA970141O2 Generator · activatedSJU - FLT 1400 - AFTER TAKEOFF SJU DURING CLIMB-OUT, SULPHUR SMELL NOTED AT ROW 32 PSU. AIRCRAFT RETURNED TO SJU AND LANDED WITHOUT INCIDENT. REPLACED 02 GENERATOR IN ROW 32 PSU FOND ACTIVATED WITH PSU DOOR CLOSED. ALSO, REPLACED ALL COALESCER BAGS. SYSTESDR 97ZZZX1006Oxygen Hose · brokenDURING A FLEET CAMPAIGN, MECHANICS FOUND 2 EACH OXYGEN HOSE ASSYS, P/N 417N3138-1 AND DASH 2 TORN OR BROKEN. THE DAMAGED AREA OF THE HOSE WAS JUST DOWNSTREAM OF THE OXYGEN GENERATOR IN THE OVERHEAD PASSENGER SERVICE UNITS. THE BOEING CO WAS INFORMED. THEY RSDR 97ZZZX1005Oxygen Hose · brokenDURING A FLEET CAMPAIGN, MECHANICS FOUND 2 EACH OXYGEN HOSE ASSYS, P/N 417N3138-1 AND DASH 2 TORN OR BROKEN. THE DAMAGED AREA OF THE HOSE WAS JUST DOWNSTREAM OF THE OXYGEN GENERATOR IN THE OVERHEAD PASSENGER SERVICE UNITS. THE BOEING CO WAS INFORMED. THEY RSDR 97ZZZX1004Oxygen Hose · brokenDURING A C-CHECK, MECHANICS FOUND 6 EACH OXYGEN HOSE ASSYS, P/N 417N3138-1 AND DASH 2 TORN AND/OR BROKEN. THE DAMAGED AREA OF THE HOSE WAS JUST DOWNSTREAM OF THE OXYGEN GENERATOR IN THE OVERHEAD PASSENGER SERVICE UNITS. THE HOSES MAY HAVE BEEN DAMAGED BY MAKSDR 97ZZZX1003Oxygen Hose · brokenDURING A C-CHECK, MECHANICS FOUND 6 EACH OXYGEN HOSE ASSYS, P/N 417N3138-1 AND DASH 2 TORN AND/OR BROKEN. THE DAMAGED AREA OF THE HOSE WAS JUST DOWNSTREAM OF THE OXYGEN GENERATOR IN THE OVERHEAD PASSENGER SERVICE UNITS. THE HOSES MAY HAVE BEEN DAMAGED BY MAKSDR 97ZZZM160Oxygen Mask · deployedFLT 205 - FLL - PASSENGER OXYGEN MASKS DEPLOYED AT TOP OF CLIMB, 31,000 FEET, NO PRESSURIZATION PROBLEM PRESENT. BAROMETRIC SETTING WAS AT A VERY LOW SETTING WHICH CAUSED A HIGHER THAN NORMAL CABIN ALTITUDE. MAINTENANCE PERFORMED AN INSPECTION OF SYSTEM AND SDR 97ZZZX780Breaker · failedWHILE DEMONSTRATING THE FUNCTION OF THE CABIN BAROMETRIC SWITCH TO A TRAINEE, IT WAS FOUND THAT WHEN POWER WAS APPLIED TO THE SOLENOID ON THE BAROMETRIC SYSTEM, THE OXYGEN VALVE DID NOT OPEN AND DROP THE MASKS. TROUBLESHOOTING FOUND A VOLTAGE DROP AT THE CIRCSDR DLL17962777Pbe · failedFLIGHT ATTENDANT REPORTED THAT THE PBE AT 3R HAD IT'S RED INDICATOR EXPOSED OUTSIDE OF CASE. THE PBE WAS REPLACED.SDR RAAA96B2046Pbe · failedFLIGHT ATTENDANT REPORTED ROW 22 PBE RED INDICATOR PIN PROTRUDING. CHANGED PBE DUE SEAL FAILURE.SDR AALA961623Switch · defectiveDFW - FLT 1568 - EN ROUTE SJC/DFW - DURING CRUISE AT FL 370, CABIN OXYGEN LIGHT ILLUMINATED AND ALL PAX OXYGEN MASKS DROPPED SUCCESSFULLY. CABIN ALTITUDE WAS 8000 FEET. AIRCRAFT PROCEEDED DFW AND LANDED WITHOUT INCIDENT. REPLACED OXYGEN PRESSURE CABIN AIRCOSDR WWMA9600072Oxy Mask · deployedSEAT 5 B/C PASSENGER OXYGEN MASK DEPLOYED BY ITSELF. MAINTENANCE REINSTALLED THE OXYGEN MASK AND RETURNED THE AIRCRAFT TO SERVICE.SDR 96UAL900628Oxy Generator · firedROWS 26-28, RIGHT SIDE OF THE AIRCRAFT HAD STRONG ELECTRICAL BURNING SMELL. ALL LIGHTS WERE OFF FOR THE MOVIE. FOUND OXYGEN GENERATOR AT SEAT 29F FIRED. REPLACED GENERATOR.SDR COMA9660127Oxy Masks · deployedALL OF THE PASSENGER CABIN OXYGEN MASKS DEPLOYED DURING TAXI. RESTOWED OXYGEN MASKS. SYSTEM CHECKS SERVICABLE.SDR AALA961153Oxy Generator · not armedSFO - DURING OVERNIGHT CHECK, WHILE GAINING ACCESS TO CEILING MOUNTED LAVATORY OXYGEN MODULES DURING FCD ACCOMPLISHMENT, OXYGEN GENERATORS AT M-1 AND M-2 MID CABIN LAVATORIES WERE FOUND WITH WARNING FLAGS AND SAFETY PINS INSTALLED. REMOVED WARNING FLAGS AND SSDR AWXA960349Oxy Mask · failed drop testCMH - FLT 2843 - MEL 35-20-03 REQUIRED DROP TEST. DROP TEST FAILED AT 3R, 4L, 8R, 11L, 16R, 18R AND 24R. PLACED SEAT ROWS 3R, 4L, 11L, 16R, 18R, AND 24R ON MEL 35-20-03. REPLACED OXYGEN MASKS AT 3R, 4L, 11L, 16R, 18R, AND 24R PER MM 35-21-41. MEL CLEARED. SDR AWXA960365Flow Contl Unit · inoperativePAE - FLT NR 7820 - DURING ROUTINE SCHEDULED C-9 MAINTENANCE CHECK, WHILE WORKING PASSENGER OXYGEN SYSTEM CHECK, FOUND ELECTRO-PNEUMATIC CONTINUOUS FLOW CONTROL UNIT AND FUNCTIONAL TEST GOOD IAW MM 35-21-21, 35-21-0. (M)SDR VSTA9607002Flow Control · not resetON CLIMBOUT, OXYGEN MASKS DROPPED WITH ACCOMPANYING PAX O2 LIGHT ILLUM, PAX O2 FLOW CONTROL UNITS NOT PROPERLY RESET AFTER MAINTENANCE MASK DROP TEST DURING 'C' CHECK. RESET PAX O2 FLOW CONTROL UNITS, RESTOWED MASKS AND SERVICED PAX O2.SDR AU961009Pbe · faulty(AUS) PROTECTIVE BREATHING EQUIPMENT (PBE) HAD UNCOMMANDED EXPANSION INSTORAGE CASESDR AWXA960341Container Assy · failedCMH/EWR - FLT 2686 - AIR TURNBACK. LOSS OF CABIN PRESSURE, OXYGEN MASKS DID NOT DEPLOY AT ROW 8, A, B, AND C. REMOVED AND REPLACED ROW 8, A, B, AND C OVERHEAD OXYGEN MASK ASSEMBLY IAW 35-42-41. (X)SDR 96ZZZX3422Mask · tornRUBBER FACE CUP TORN. TWO EACH PASSENGER FACE MASKS. BOTH MASKS TORN IN SAME LOCATION. FOUND DURING 24-MONTH INSPECTION. MFG PURITAN BENNETT.SDR ABXA9600590Oxy Flex Line · rupturedOBSERVER'S FLEXIBLE OXYGEN LINE TO THE REGULATOR RUPTURED INFLIGHT. CREW INITIATED DESCENT TO 21,000 FEET. REPLACED OBSERVER'S FLEXIBLE OXYGEN LINE TO THE REGULATOR.SDR P5CA9600251Flow Contl Unit · leakingDURING MAINTENANCE, FOUND PASSENGER O2 LOW. FOUND ELECTRO-PNEUMATIC FLOW CONTROL UNIT LEAKING INTERNALLY. REPLACED SAME IAW MM 35-21-00. ALSO, REPLACED AFT PASSENGER O2 BOTTLE, (P/N 801307-00), (S/N 962110) NO LEAKS NOTED.SDR 96ZZZX3420Mask · tornRUBBER FACE CUP TORN. FOUR EACH PASSENGER FACE MASKS. ALL TORN IN THE SAME LOCATION. FOUND DURING 12-MONTH INSPECTION.SDR P5CA9600250Coupling · leakingDURING MAINTENANCE, FOUND LEAK IN PASSENGER OXYGEN SYSTEM. REMOVED AND REPLACED COUPLING IAW MM 35-21-00, LEAK CHECK NORMAL.SDR 96ZZZX3410Lanyard · fail testOXYGEN MASK LANYARDS FOR ACTIVATING PASSENGER OXYGEN SYSTEMS FAILED THE PULL TEST. INSPECTION OF ALL LANYARDS WITH THIS PART NUMBER BOX RESULTED IN IDENTIFYING 100 PERCENT DEFECTIVE, I.E., BAD CRIMPS AND CRIMPS SLIPPING. PURITAN BENNETT HAS BEEN NOTIFIED ANDSDR WWMA9600045Oxy Masks · deployedON AIRCRAFT PREFLIGHT CREW REPORTED, THAT THE OXYGEN MASKS DEPLOYED. MAINTENANCE PERFORMED A FUNCTIONAL CHECK OF THE PASSENGER OXYGEN SYSTEM AND REPACKED THE MASKS.
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