JASC 3520
Service difficulty reports · 2,733
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 DALA2026011700399Door · openDURING BOARDING, OVERHEAD PANEL IN ROW 23ABC WHICH SERCURES PAX O2 MASK FELL DOWN. DEFERRED SEAT ROW 23ABC O2 MASK PER A320 MEL 35-21-01B. M PROCEDURES C/W PLACARD INSTALLED. R & R OVERHEAD O2 PANEL PER CMM 25-28-02. DOOR STAYS CLOSED. PERFORMED OPS CHECK PERSDR DALA2026010400040Oxygen Mask · unwanted deployOXYGEN PANEL MASK DEPLOYED / LOCATIONS:17A. OXYGEN MASK ABOVE ROW 17ABC FELL DURING RAKE OFF COMPARTMENT IS NOT SECURED AND IS BEING HELD BY TAPE. THE AREA IS GAPING OPEN AND MASK ARE NOT SECURE. C/A: REPACKED AND STOWED OXYGEN MASKS REF A320 AMM 35-21. A/C OKSDR DALA2026010500051Oxygen Mask · unwanted deployDURING POWER TRANSFER FROM GPU TO APU, A FEW OXYGEN MASK FELL ON THE REAR OF THE AIRCRAFT. RESTOWED OXYGEN MASK IN RT AFT GALLEY. REF AMM 35-21. (LP: 8031298)SDR DALA2025122909448Oxygen Mask · unwanted deploySEAT 10E O2 MASK DEPLOYED NOTED WHILE DEPLANING. CORRECTIVE ACTION: ESTOWED MASK PER A319 AMM 35-21, OK FOR SERVICE. (7936350)SDR DALA2025122809429Oxygen Mask · unwanted deployPASSENGER OXYGEN MASKS ROW 28 DEF DROPPED ON TAKEOFF. C/A: REPLACED OXYGEN MASKS IN CONTAINER AND SECURED DOOR CLOSED AND LOCKED REF A320 AMM 35-21. (LP: 8069166)SDR AALA202512245469Oxygen Mask · no testAIRCRAFT WAS GROUNDED: SEAT 20ABC O2 MASK COMPARTMENT WILL NOT RELEASE WHILE PERFORMING THE DROP TEST IAW AMM 35-23-00. MAINTENANCE OPENED AND INSPECTED MASK CONTAINER AT 20ABC. REPACKED AND STOWED MASKS AS NEEDED, PER AMM 35-21-43 AND PERFORMED SATISFACTORY DSDR AALA202512222551Oxygen Mask · no testAIRCRAFT WAS GROUNDED: SEAT 12DEF O2 MASK COMPARTMENT WILL NOT RELEASE WHILE PERFORMINGTHE DROP TEST IAW AMM 35-23-00. MAINTENANCE OPENED AND INSPECTED MASK CONTAINER AT 12DEF. REPACKED AND STOWED MASKS AS NEEDED, PER AMM 35-21-43 AND PERFORMED SATISFACTORY DRSDR AALA202512225044Oxygen Mask · no testAIRCRAFT WAS GROUNDED: SEAT 15ABC O2 MASK COMPARTMENT WILL NOT RELEASE WHILE PERFORMINGTHE DROP TEST IAW AMM 35-23-00. MAINTENANCE OPENED AND INSPECTED MASK CONTAINER AT 15ABC. REPACKED AND STOWED MASKS AS NEEDED, PER AMM 35-21-43 AND PERFORMED SATISFACTORY DRSDR AALA202512228417Oxygen Mask · no testAIRCRAFT WAS GROUNDED: SEAT 18ABC O2 MASK COMPARTMENT WILL NOT RELEASE WHILE PERFORMING THE DROP TEST IAW AMM 35-23-00. MAINTENANCE OPENED AND INSPECTED MASK CONTAINER AT 18ABC. REPACKED AND STOWED MASKS AS NEEDED, PER AMM 35-21-43.PERFORMED SATISFACTORY DROP SDR AALA202512225084Oxygen Mask · no testAIRCRAFT WAS GROUNDED: SEAT 14DEF O2 MASK COMPARTMENT WILL NOT RELEASE WHILE PERFORMINGTHE DROP TEST IAW AMM 35-23-00. MAINTENANCE OPENED AND INSPECTED MASK CONTAINER AT 14DEF. REPACKED AND STOWED MASKS AS NEEDED, PER AMM 35-21-43 AND PERFORMED SATISFACTORY DRSDR AALA202512222898Oxygen Mask · no testAIRCRAFT WAS GROUNDED: SEAT 24ABC O2 MASK COMPARTMENT WILL NOT RELEASE WHILE PERFORMING THE DROP TEST IAW AMM 35-23-00. MAINTENANCE OPENED AND INSPECTED MASK CONTAINER AT 24ABC. REPACKED AND STOWED MASKS AS NEEDED, PER AMM 35-21-43 AND PERFORMED SATISFACTORY DSDR AALA202512224199Oxygen Mask · no testAIRCRAFT WAS GROUNDED: SEAT 19ABC O2 MASK COMPARTMENT WILL NOT RELEASE WHILE PERFORMINGTHE DROP TEST IAW AMM 35-23-00. AINTENANCE OPENED AND INSPECTED MASK CONTAINER AT 19ABC. REPACKED AND STOWED MASKS AS NEEDED, PER AMM 35-21-43 AND PERFORMED SATISFACTORY DROSDR AALA202512222123Oxygen Mask · no testAIRCRAFT WAS GROUNDED: SEAT 25DEF O2 MASK COMPARTMENT WILL NOT RELEASE WHILE PERFORMINGTHE DROP TEST IAW AMM 35-23-00. MAINTENANCE OPENED AND INSPECTED MASK CONTAINER AT 25DEF. REPACKED AND STOWED MASKS AS NEEDED, PER AMM 35-21-43 AND PERFORMED SATISFACTORY DRSDR AALA202512223434Oxygen Mask · no testAIRCRAFT WAS GROUNDED: SEAT 10DEF O2 MASK COMPARTMENT WILL NOT RELEASE WHILE PERFORMING THE DROP TEST IAW AMM 35-23-00. MAINTENANCE OPENED AND INSPECTED MASK CONTAINER AT 10DEF. REPACKED AND STOWED MASKS AS NEEDED, PER AMM 35-21-43 AND PERFORMED SATISFACTORY DSDR AALA202512221585Oxygen Mask · no testAIRCRAFT WAS GROUNDED: SEAT 25ABC O2 MASK COMPARTMENT WILL NOT RELEASE WHILE PERFORMINGTHE DROP TEST IAW AMM 35-23-00. MAINTENANCE OPENED AND INSPECTED MASK CONTAINER AT 25ABC. REPACKED AND STOWED MASKS AS NEEDED, PER AMM 35-21-43 AND PERFORMED SATISFACTORY DRSDR AALA202512220191Oxygen Mask · no testAIRCRAFT WAS GROUNDED: SEAT 2AC O2 MASK COMPARTMENT WILL NOT RELEASE WHILE PERFORMING THE DROP TEST IAW AMM 35-23-00. MAINTENANCE OPENED AND INSPECTED MASK CONTAINER AT 2ABC REPACKED AND STOWED MASKS AS NEEDED, PER AMM 35-21-43 AND PERFORMED SATISFACTORY DROP SDR AALA202512220968Oxygen Mask · no testAIRCRAFT WAS GROUNDED: SEAT 22ABC O2 MASK COMPARTMENT WILL NOT RELEASE WHILE PERFORMINGTHE DROP TEST IAW AMM 35-23-00. MAINTENANCE OPENED AND INSPECTED MASK CONTAINER AT 22ABC.REPACKED AND STOWED MASKS AS NEEDED, PER AMM 35-21-43 AND PERFORMED SATISFACTORY DROSDR DALA2025122209275Oxygen Mask · unwanted deployAFT OUTBOARD LAV O2 MASK IS HANGING DOWN. RESTOWED O2 MASK IN AFT OTBD LAV PER AMM 35-21. (LP: 8104016)SDR DALA2025122209274Oxygen Mask · unwanted deployOXYGEN PANEL MASK DEPLOYED. WHILE SITTING DURING TURBULENCE, THE MASKS SUDDENLY DEPLOYED. WAS ABLE TO PUT IT BACK IN BUT IT SHOULD BE CHECKED OUT JUST IN CASE. INSPECTED AND REINSTALLED O2 CONTAINER AT 2L IAW AMM 35-21. OK FOR SERVICE. (LP: 1359790)SDR DALA2025121809236Oxygen Box · faultedAFT LEFT LAV PSU MASK DROPPED. R & R O2 CONTAINER HOUSING ASSY PER A330 AMM 35-21. OK FOR SERVICE. (8215322)SDR DALA2025121609158Oxygen Mask · unwanted deployOXYGEN PANEL MASK DEPLOYED. RESECURED COMPARTMENT AT LAV 202 IAW AMM 35-21. (1353632).SDR DALA2025121609149Panel · unlatchedATB DUE TO SEAT AT ROW 35 CENTER PSU PANEL UNLATCHING IN FLIGHT. UNABLE TO RESECURE IN FLIGHT, RETURNED TO ATL, RESECURED PANEL AND COMPLIED WITH W/C 0555-9001-A330. OK FOR SERVICE. (8207331)SDR ASAA2025121263267O2 Generator · faultedWHILE ATTEMPTING TO DEACTIVATE THE LAV E LAVATORY SERVICE UNIT (LSU), THE OXYGEN GENERATOR PULL-CORD WAS INADVERTENTLY ENGAGE AT A TIME WHEN SAFETY PIN WAS NOT INSTALLED. DESPITE THIS UNINTENTIONAL ACTIVATION OF THE PULL-CORD, THE OXYGEN GENERATOR DID NOT INITSDR DALA2025121709178Oxygen Box · faultedAFT LT LAV O2 MOD DOOR WILL NOT CLOSE LAVATORY OXYGEN MODULE. AFT LAV (LT) O2 MASK DROPPED ON LANDING IN DTW. C/A: FWD TO MCC , MEL 35-21-02 , "M" PROCEDURE CW , DISPATCH APPROVED , PLACARD INSTALLED. REMOVED AND REPLACED 203 LAV O2 CONTAINER ASSY PER AMM 35-SDR AALA202512100363Oxygen Mask · unwanted deployAIRCRAFT WAS GROUNDED: AN EMERGENCY WAS NOT DECLARED DUE TO: O2 MASKS OVER ROW 19 SEATS ABC DEPLOYED AND EXPANDED OXYGEN. AIRCRAFT DIVERTED TO AND LANDED SAFELY AT MIA. REPLACED OXYGEN GENERATOR. PER MM 35-22-11.SDR DALA2025120108771Oxygen Mask · unwanted deployPASSENGER OXYGEN PANEL MASK DEPLOYED. REPACKED PASSENGER OXYGEN PANEL PER A320 FAM AMM 35-21. (1327920).SDR DALA2025111208293Oxygen Mask · dislodgedMASK DROP AT 3C AND 3D. RESTOWED PASSENGER O2 MASK IAW A319 35-21. (7337934).SDR DALA2025111108224Oxygen Mask · unwanted deployOXYGEN MASKS AT 14DEF DEPLOYED, ONE MASK. LANYARD WAS PULLED AND OXYGEN WAS FLOWING. OXYGEN GEN DID NOT ACTIVATE, VERIFIED BY TEMP & ARMING PIN STILL INSTALLED. RESTOWED MASKS AT 14DEF IAW AMM 35-21. OK FOR SVC. (LP: 7997714)SDR AALA202511104964Oxygen Mask · no testAIRCRAFT IN BASE MAINTENANCE: REF MIC 1658268 DURING OPS CHECK OF MANUAL MASK RELEASE, O2 MASKAT SEAT 18RH FAILED TO DEPLOY. REF AMM 35-23-00-710-001-A. MAINTENANCE RE-PACK OXYGEN MASK ASSEMBLY IAW AMM 35-21-43.SDR AALA202511108147Oxygen Mask · no testAIRCRAFT WAS GROUNDED: REF MIC 1658268 DURING OPS CHECK OF MANUAL MASK RELEASE, O2 MASK AT SEAT 5LH FAILED TO DEPLOY. REF AMM 35-23-00-710-001-A. MAINTENANCE RE-PACK OXYGEN MASK ASSEMBLY IAW AMM 35-21-43.SDR AALA202511100029Oxygen Mask · no testAIRCRAFT WAS GROUNDED: REF MIC 1658268 DURING OPS CHECK OF MANUAL MASK RELEASE, O2 MASKAT SEAT 5RH FAILED TO DEPLOY. REF AMM 35-23-00-710-001-A. MAINTENANCE ACCOMPLISHED SUCCESSFUL DROP TEST IAW AMM 35-21-43.SDR AALA202511100094Oxygen Mask · no testAIRCRAFT WAS GROUNDED: REF MIC 1658268 DURING OPS CHECK OF MANUAL MASK RELEASE, O2 MASKAT SEAT 14RH FAILED TO DEPLOY. REF AMM 35-23-00-710-001-A. MAINTENANCE PERFORMED DROP CHECK OF 14RH O2 MASKS. DROP CHECK GOOD IAW AMM 35-23-00.SDR AALA202511101891Actuator · no testAIRCRAFT WAS GROUNDED: REF MIC 1658268 DURING OPS CHECK OF MANUAL MASK RELEASE, O2 MASKAT SEAT 9LH FAILED TO DEPLOY. REF AMM 35-23-00-710-001-A. MAINTENANCE REMOVED AND REINSTALLED 9LH DROP ACTUATOR IAW AMM 35-21-41.SDR AALA202511104121Oxygen Mask · no testAIRCRAFT WAS GROUNDED: REF MIC 1658268 DURING OPS CHECK OF MANUAL MASK RELEASE, O2 MASK AT FORWARD LAV FAILED TO DEPLOY. REF AMM 35-23-00-710-001-A. MAINTENANCE ACCOMPLISHED SUCCESSFUL DROP TEST IAW AMM 35-21-43 FOR FWD LAV.SDR AALA202511107329Canister · no testAIRCRAFT IN BASE MAINTENANCE: REF MIC 1658268 DURING OPS CHECK OF MANUAL MASK RELEASE, O2 MASK AT SEAT 2LH FAILED TO DEPLOY. REF AMM 35-23-00-710-001-A. MAINTENANCE REPLACED 2L O2 MASK CONTAINER HOUSING IAW AMM 35-21-41. DROP CHECK GOOD! REF AMM 35-23-00.SDR AALA202511109069Actuator · no testAIRCRAFT WAS GROUNDED: REF MIC 1658268 DURING OPS CHECK OF MANUAL MASK RELEASE, O2 MASKAT SEAT 18LH FAILED TO DEPLOY. REF AMM 35-23-00-710-001-A. MAINTENANCE REPLACED 18LH OXYGEN CONTAINER ACTUATOR IN REF TO AMM 35-21-41. OPS CHK GOOD.SDR AALA202511108508Oxygen Mask · no testAIRCRAFT WAS GROUNDED: REF MIC 1658268 DURING OPS CHECK OF MANUAL MASK RELEASE, O2 MASK AT SEAT 3LH FAILED TO DEPLOY. REF AMM 35-23-00-710-001-A. MAINTENANCE RE-PACK OXYGEN MASK ASSEMBLY IAW AMM 35-21-43.SDR AALA202511104146Oxygen Mask · no testAIRCRAFT WAS GROUNDED: REF MIC 1658268 DURING OPS CHECK OF MANUAL MASK RELEASE, O2 MASK AT SEAT 26RH FAILED TO DEPLOY. REF AMM 35-23-00-710-001-A. MAINTENANCE PERFORMED OPERATIONAL TEST OF THE PASSENGER OXYGEN SYSTEM IAW AMM 35-23-00-710-001-A.SDR AALA202511075913Oxygen Mask · no testAIRCRAFT WAS GROUNDED: REF MIC 1658268 DURING OPS CHECK OF MANUAL MASK RELEASE, O2 MASKAT SEAT 26LH FAILED TO DEPLOY. REF AMM 35-23-00-710-001-A. MAINTENANCE RE-PACK OXYGEN MASK ASSEMBLY IAW AMM 35-21-43.SDR AALA202511075214Oxygen Mask · no testAIRCRAFT WAS GROUNDED: REF MIC 1658268 DURING OPS CHECK OF MANUAL MASK RELEASE, O2 MASKAT SEAT 25RH FAILED TO DEPLOY. REF AMM 35-23-00-710-001-A. MAINTENANCE RE-PACK OXYGEN MASK ASSEMBLY IAW AMM 35-21-43.SDR AALA202511076270Oxygen Mask · no testAIRCRAFT WAS GROUNDED: REF MIC 1658268 DURING OPS CHECK OF MANUAL MASK RELEASE, O2 MASKAT SEAT 22L FAILED TO DEPLOY. REF AMM 35-23-00-710-001-A. MAINTENANCE RE-PACK OXYGEN MASK ASSEMBLY IAW AMM 35-21-43.SDR AALA202511079258Oxygen Mask · no testAIRCRAFT WAS GROUNDED: REF MIC 1658268 DURING OPS CHECK OF MANUAL MASK RELEASE, O2 MASKAT SEAT 7RH FAILED TO DEPLOY. REF AMM 35-23-00-710-001-A. MAINTENANCE RE-PACK OXYGEN MASK ASSEMBLY IAW AMM 35-21-43.SDR AALA202511070620Oxygen Mask · no testAIRCRAFT WAS GROUNDED: REF MIC 1658268 DURING OPS CHECK OF MANUAL MASK RELEASE, O2 MASKAT SEAT 8RH FAILED TO DEPLOY. REF AMM 35-23-00-710-001-A. MAINTENANCE RE-PACK OXYGEN MASK ASSEMBLY IAW AMM 35-21-43.SDR AALA202511076027Oxygen Mask · no testAIRCRAFT WAS GROUNDED: REF MIC 1658268 DURING OPS CHECK OF MANUAL MASK RELEASE, O2 MASKAT SEAT 16LH FAILED TO DEPLOY. REF AMM 35-23-00-710-001-A. MAINTENANCE RE-PACK OXYGEN MASK ASSEMBLY IAW AMM 35-21-43.SDR AALA202511078861Oxygen Mask · no testAIRCRAFT WAS GROUNDED: REF MIC 1658268 DURING OPS CHECK OF MANUAL MASK RELEASE, O2 MASKAT SEAT 9RH FAILED TO DEPLOY. REF AMM 35-23-00-710-001-A. MAINTENANCE RE-PACK OXYGEN MASK ASSEMBLY IAW AMM 35-21-43.SDR AALA202511072652Oxygen Mask · no testAIRCRAFT WAS GROUNDED: REF MIC 1658268 DURING OPS CHECK OF MANUAL MASK RELEASE, O2 MASKAT SEAT 15LH FAILED TO DEPLOY. REF AMM 35-23-00-710-001-A. MAINTENANCE RE-PACK OXYGEN MASK ASSEMBLY IAW AMM 35-21-43.SDR AALA202511076439Oxygen Mask · no testAIRCRAFT WAS GROUNDED: REF MIC 1658268 DURING OPS CHECK OF MANUAL MASK RELEASE, O2 MASKAT SEAT 10L/H FAILED TO DEPLOY. REF AMM 35-23-00-710-001-A. MAINTENANCE RE-PACK OXYGEN MASK ASSEMBLY IAW AMM 35-21-43.SDR DALA2025110608085Oxygen Mask · dislodgedL1 DOOR OXYGEN MASK DROPPED ON LANDING. STOWED THE L1 O2 MASK IAW AMM 35-21-41. (7786072).SDR UIEA2025110201290Oxygen Bottle · low pressurePORTABLE OXYGEN BOTTLE SHOWS LOW PRESSURE AT SUPERNUMERARY SEATS(<P>R/R PORTABLE O2 BOTTLE IAW AMM 35-31-01. THIS CLOSES DMI 241303. OPS & LK CHK OK. PLACARD REMOVED.</P>)SDR DALA2025110408059Oxygen Mask · dislodgedOXYGEN MASKS PANEL FELL AT ROW 12DEF. DEFER O2 MASKS AT SEAT ROW 12DEF TO MEL 35-21-01A, M PROCEDURE C/W, INSTALLED PLACARD, A/C OK TO CONTINUE ON MEL. RE-SECURED PANEL DOOR OK FOR SVC PER A320 AMM 25-25. MEL CLEARED / PLACARD REMOVED M PROC REVERSED. (LP: 79
Back to JASC 3520