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.

SDR DXTA2025060203717Oxygen Mask · unwanted deployMX LEFT THE PASSENGER OXYGEN KNOB TO OFF. WHEN I ROTATED THE PASS OXY KNOB TO AUTO ALL THE MASKS DEPLOYED. REPACKED PASSENGER OXYGEN MASK WORK DONE REF. CESSNA CE-680 AMM 35-20-00. NO FURTHER DEFECTS NOTED. VERIFIED OXYGEN LEVEL IS STILL GOOD.Jun 1, 2025 · N334QS · Cessna 680SOVSDR SWIA20250601Oxygen Mask · deployedPAX OXY DEPLOYED. DEFERRED ALL PASSENGER O2 MASKS IN CABIN INCLUDING FA AFTER BEING DISCHARGED IN FLIGHT PER 35-20-1A. NO MX REQUIRED. (FA MASK IS USED AND STOWED FOR ACCESS TO FLIGHT DECK). PLACARD INSTALLEDJun 1, 2025 · N877AS · Cndair CL6002B19SDR FDEA202505230794Oxygen Mask · inoperativeON PREFLIGHT FOUND CREW COCKPIT O2 WALK AROUND BOTTLE MASK UNSERVICEABLE. REMOVED AND REPLACED COCKPIT CREW 02 MASK PER REF ABOVE. OPS CHECK GOOD. A/C OK FOR SERVICE.May 23, 2025 · N654FE · Airbus A300F4605RSDR DALA2025052403993Oxygen Panel · looseSHIP 3225 DISC: OXYGEN PANEL OVER GALLEY COUNTER IS LOOSE. C/A: RESTOWED OXYGEN PANEL W/MASK. IAW A320 AMM 35-20, A/C OK FOR SVC. (LP: 0978266)May 21, 2025 · N325US · Airbus A320211SDR DALA2025052003850Psu · faultedSHIP 3360 OXYGEN CONTAINER AT 49AB UNUSEABLE. CORRECTIVE ACTION: REPLACED PSU ASSY PER A330 AMM 35-21. OPS CHECK GOOD. (7171193)May 19, 2025 · N860NW · Airbus A330223SDR DALA2025051903840Oxygen Mask · dislodgedSHIP 3357 OXYGEN MASKS HAVE FALLEN OUT OF CONTAINER IN FWD LAV. CORRECTIVE ACTION: RESTOWED FWD LAV O2 MASKS PER A330 AMM 35-21. OK FOR SVC. (7562573)May 19, 2025 · N857NW · Airbus A330223SDR DALA2025051903834Oxygen Panel · no testSHIP 3434 SEAT 51CDFG O2 PANEL DID NOT DROP DURING DROP TEST. CORRECTIVE ACTION: RESET PANEL AND RE-TESTED. SECOND OPS TEST GOOD. OK FOR SERVICE. (0968646)May 16, 2025 · N434DX · Airbus A330941SDR DALA2025051603792Oxygen Box · openSHIP 3243 DISC: AFT GALLEY O2 MASK COMPARTMENT OPENED & DEPLOYED. C/A: RESECURED O2 MASKS IN COMPARTMENT PER A320 AMM 35-21 - ALL CHECKS NORMAL. (LP: 7386038)May 13, 2025 · N343NW · Airbus A320212SDR AALA202505152078Oxygen Mask · inoperativeAIRCRAFT WAS GROUNDED: ROW 15 ABC O2 MASKS DID NOT DROP DURING EMERGENCY DECENT. MAINTENANCE FOUND MASKS NOT STOWED CORRECTLY, INSTALLED MASKS IAW AMM 35-21-43,May 11, 2025 · N768US · Airbus A319112SDR AALA202505132078Oxygen Mask · inoperativeAIRCRAFT WAS GROUNDED: ROW 15 ABC O2 MASKS DID NOT DROP DURING EMERGENCY DECENT. MAINTENANCE FOUND MASKS NOT STOWED CORRECTLY, INSTALLED MASKS IAW AMM 35-21-43,May 11, 2025 · N768US · Airbus A319112SDR WX0A2025051232421Oxygen Mask · broken(AIRCRAFT NOT GROUNDED) AFT CENTER GALLEY OXYGEN MASK ASSEMBLY BROKEN. / REMOVED AND REPLACED OXYGEN MODULE IN THE AFT GALLEY CEILING W/REF TO AMM 35-21-41-400-001-A, OPERATIONAL CHECK GOOD. THIS CLEARS MEL 35-21-01-E CAT B MDDR # 212183, INOP PLACARDS REMOVEDMay 10, 2025 · N332NV · Airbus A319111SDR DALA2025050803568Oxygen Mask · no testSHIP 6801 DURING MANUAL OXYGEN MASK DEPLOYMENT SEATS 44A,B,C AND 30,D,E,F PASSENGER OXYGEN MASKS DID NOT DEPLOY. CORRECTIVE ACTION: ADJUSTED JAMMED MASK ON ROW 44A,B,C AND ROW 30D,E,F PSU'S. (7427714)May 7, 2025 · N702TW · Boeing 7572Q8SDR DALA2025050903590Oxygen Mask · faultedSHIP 3262 DISC: ROW 27 DEF O2 MASK WILL NOT STOW. C/A: STOWED PER 320 AMM 35-21. OPS GOOD. (LP: 6973931)May 6, 2025 · N362NW · Airbus A320212SDR DALA2025050903589Oxygen Mask · faultedSHIP 3262 DISC: ROW 26 DEF O2 MASKS WILL NOT STOW. C/A: STOWED PER 320 AMM 35-21. OPS GOOD. (LP: 6973930)May 6, 2025 · N362NW · Airbus A320212SDR DALA2025050703520Oxygen Mask · unwanted deploySHIP 3262 OXYGEN MASK DEPLOYED IN AFT LAV RIGHT. RESTOWED AS PER A320 AMM 5-21, OK FOR SVC. (LP: 0948853)May 4, 2025 · N362NW · Airbus A320212SDR DALA2025050503455Oxygen Mask · dislodgedSHIP 3302 O2 MASK PANEL COMING DOWN FA CREW BUNK 5. CORRECTIVE ACTION: RE-SECURED PANEL PER A330 AMM 35-23. OK FOR SVC. (7240849)May 3, 2025 · N802NW · Airbus A330323SDR UIEA2025050200577Oxygen Mask · dislodgedO2 MASK UNSTOWED (FELL OUT) IN CEILING OF LAVATORY.(<P>O2 MASK PACKED REF AMM 35-11-00 AND NO FURTHER DEFECTS NOTED</P>)May 2, 2025 · N761GT · Boeing 777FSDR AALA202505066352Oxygen Gen · inoperativeAIRCRAFT IN BASE MAINTENANCE: BROKEN EMERGENCY OXIGEN CONTAINER ASSY ON CENTER AREA FWD POSITION AT AFT GALLEY AREA. REPLACED EMERGENCY OXIGEN CONTAINER ASSY ON CENTER AREA FWD POSITION AT AFT GALLEY AREA MAINTENANCE REPLACED EMERGENCY OXIGEN CONTAINER ASSY ONApr 30, 2025 · N775XF · Airbus A319112SDR DALA2025050303401Oxygen Mask · unwanted deploySHIP 3267 OXYGEN PANEL MASK DEPLOYED, OXIGEN MASK DEPLOYED AS WE DEPARTED. CABLES AND MASK HANGING BY BOARDING DOOR. VERIFIED O2 GENERATOR OPERATIONAL - PIN WAS NOT PULLED OUT. RE-STOWED 02 MASKS REF. A320 AMM 35-23. OPS CK GOOD. MEL/PLAC RMVD. (M) PROCEDUREApr 30, 2025 · N367NW · Airbus A320212SDR DALA2025050503452Door · damagedSHIP 3304 O2 PSU DOOR DAMAGED OVER JUMPSEAT 109. CORRECTIVE ACTION: REPLACED ASSEMBLY. OK FOR SERVICE. (7562222)Apr 29, 2025 · N804NW · Airbus A330323SDR DALA2025050103376Door · no testSHIP 3304 PSU DOOR NOT DEPLOYED AND JAMMED IN LAV 201. CORRECTIVE ACTION: R/R LAV A 201 OXYGEN GEN CONTAINER IAW A330 AMM 35-21. DROP TEST PASS. (7562223)Apr 29, 2025 · N804NW · Airbus A330323SDR DALA2025050103377Latch · wornSHIP 3403 2R DOOR F/A SEAT 02 MASK CONTAINER LATCH WORN. WILL NOT HOLD. CORRECTIVE ACTION: R/R 02 CONTAINER PER AMM 35-21-41-000-801-A. MASK DROP OPS OK. (6159874)Apr 28, 2025 · N403DX · Airbus A330941SDR DALA2025050103354Oxygen Mask · dislodgedSHIP 3225 DISC: AFT GALLEY OXYGEN MASKS FELL DOWN DURING TAKEOFF. C/A: INSPECTED AND FOUND TUBE IN DOOR ASSY, O2 GEN LOOKS GOOD PINS STILL INSTALLED. REPACKED MASK IN BOX PER A320 AMM 35-21. DOOR SECURE. OK FOR SERVICE. (LP: 7544326)Apr 27, 2025 · N325US · Airbus A320211SDR DALA2025042903307Oxygen Mask · unwanted deploySHIP 3304 OXYGEN PANEL MASK DEPLOYED / LOCATIONS:202. CORRECTIVE ACTION: REMOVED AND REPLACED LAV 204 O2 CONTAINER ASSY. HYDRO STAT DATE GOOD. OPS CK GOOD. REF A330 AMM 35-21. (0935091)Apr 26, 2025 · N804NW · Airbus A330323SDR DALA2025042703259Oxygen Mask · dislodgedSHIP 3225 DISC: AFT GALLEY OXYGEN MASKS FELL DOWN DURING TAKEOFF. C/A: REPACKED AFT GALLEY OXYGEN MASK ASSEMBLY IAW A320 AMM 35-21. OPS CK GOOD, OK FOR SVC. (LP: 7544320)Apr 26, 2025 · N325US · Airbus A320211SDR DALA2025042803283Cover · openSHIP 3329 SEAT 41 A B REPORTED OVERHEAD O2 COVER OPENED THREE TIMES IN FLIGHT. MASKS DID NOT FALL OUT. PASSENGER CLOSED OVERHEAD EACH TIME. REPORTED AFTER BLOCK IN. CORRECTIVE ACTION: RE-PACKED MASKS AND SECURED PANEL PER A330 AMM 35-23. OK FOR SERVICE. (70805Apr 25, 2025 · N829NW · Airbus A330302SDR DALA2025042503245Oxygen Mask · unwanted deploySHIP 3426 OXYGEN PANEL MASK DEPLOYED LOCATION 901. CORRECTIVE ACTION: RE-PACKED MASKS PER A330 AMM 35-23. (0931190)Apr 24, 2025 · N426DZ · Airbus A330941SDR DALA2025042703260Oxygen Mask · unwanted deploySHIP 3244 OXYGEN PANEL MASK DEPLOYED, OXYGEN MASKS DEPLOYED ABOVE 24DEF. NO HEAT PRODUCED, GENTLY PLACED MASKS BACK IN COMPARTMENT AND LATCHED DOOR CLOSED FOR LANDING. RE STOWED O2 MASKS AT SEAT 24DEF PER A-320 AMM 35-21. (LP: 0928839)Apr 23, 2025 · N344NW · Airbus A320212SDR DALA2025042403219Oxygen Mask · unwanted deploySHIP 3322 OXYGEN PANEL MASK DEPLOYED LOCATION:111. CORRECTIVE ACTION: REPACKED MASKS PER A330 AMM 35-21. OK FOR SERVICE. (0928667)Apr 23, 2025 · N822NW · Airbus A330302SDR DALA2025042403201Oxygen Panel · looseSHIP 3230 DISC: OXYGEN PANEL LOOSE, FLUNG OPEN ON TAKEOFF, NOT SURE IF ITS BROKEN, DIDNT WANT TO MESS WITH IT. C/A: UPON ARRIVAL FOUND O2 DOOR ABOVE JS101 OPEN. AFT MASK IN SIDEWAYS, BUT NO OTHER ISSUES. RESECURED O2 PANEL. OKAY FOR SVC. REF A320 AMM 35-21. (LApr 21, 2025 · N330NW · Airbus A320211SDR DALA2025042403198Oxygen Mask · unwanted deploySHIP 3244 31ABC MASKS DROPPED IN FLIGHT. R/R SEAT #31ABC PSEU IAW A320 AMM 25-25-41. OPS CHECK GOOD, OK FOR SVC. (LP: 7245640)Apr 21, 2025 · N344NW · Airbus A320212SDR DALA2025042103043Oxygen Mask · unwanted deployAFTER LANDING FA REPORTS CREW O2 MASK DEPLOYED IN AFT GALLEY. STOWED O2 MASK IN AFT GALLEY IAW A320 AMM 35-21. SECURITY CHECK GOOD. (LP: 7245446)Apr 18, 2025 · N368NW · Airbus A320212SDR DALA2025041602968Oxygen Mask · unwanted deploySHIP 3317 LAV 202 MASKS DEPLOYED. CORRECTIVE ACTION: RE-PACKED MASKS PER A330 AMM 35-21. OK FOR SERVICE. (0914038)Apr 15, 2025 · N817NW · Airbus A330323SDR DALA2025041602966Oxygen Mask · unwanted deploySHIP 3312 OXYGEN PANEL MASK DEPLOYED LOCATION:204. CORRECTIVE ACTION: RE-PACKED MASKS PER A330 AMM 35-21. OK FOR SERVICE. (0914619)Apr 15, 2025 · N812NW · Airbus A330323SDR DALA2025041502956Latch · brokenSHIP 3230 DISC: OXYGEN PANEL LATCH BROKEN. C/A: RESECURED 02 PANEL ABOVE L1 DOOR PER A320 AMM 35-20. (LP: 0912866)Apr 14, 2025 · N330NW · Airbus A320211SDR DALA2025041502954Oxygen Box · openSHIP 3118 DISC: ROW 12 DEF PAX OXYGEN MASK PANEL OPEN. MASK WERE NOT ACTIVATED. C/A: REINSTALLED O2 MASK PER A319 AMM 35-21. (LP: 7188452)Apr 14, 2025 · N318NB · Airbus A319114SDR DALA2025042103034Oxygen Box · no testSHIP 5076 SEATS 5AB PSU PANEL WONT DROP DURING MASK DROP. CORRECTIVE ACTION: REMOVED AND REPLACED PSU PANEL 5AB WITH SERVICEABLE UNIT IAW A321 AMM 35-21-41 (6443064)Apr 12, 2025 · N576DN · Airbus A321271NXSDR DALA2025041102802Oxygen Mask · dislodged2 O2 MASKS ABOVE F/ALT JUMP SEAT AT 1L FELL DOWN AS GATE AGENT CLOSED A/C DOOR. C/A: RESTOWED FWD F/ A O2 MASK CONTAINER, PER A320 AMM 35-21. A/C OK TO CONTINUE. (LP: 7085020)Apr 9, 2025 · N330NW · Airbus A320211SDR UIEA2025040900449Bottle · low pressureSUPERNUMERARY PAX O2 LOW.(<P>R/R PAX O2 CYLINDER IAW AMM 12-15-08. LEAK CHECK GOOD.</P>)Apr 9, 2025 · N1511A · Boeing 767383SDR DALA2025041102805Oxygen Mask · unsecureSHIP 3223 DISC: AFT GALLEY OXY MASKS HANGING FREE. C/A: STOWED AFT FA 02 MASK PER A320 AMM 35-20. (LP: 7084784)Apr 8, 2025 · N323US · Airbus A320211SDR DALA2025041102803Oxygen Box · openSHIP 3272 DISC: CREW REPORTED O2 DOOR IN AFT GALLEY CAME OPEN ON LANDING. C/A: DEFER AFT CENTER GALLEY O2 STORAGE DOOR TO MEL 35-21-01D. O2 BOTTLE AVAILABLE FOR CREW, INSTALLED PLACARD INSTALLED, M PROCEDURE C/W , A/C OK TO CONTINUE ON MEL. RESECURED LOOSE RUBApr 8, 2025 · N372NW · Airbus A320212SDR DALA2025040802687Oxygen Mask · unwanted deploySHIP 3141 DISC: OXYGEN PANEL MASK DEPLOYED. C/A: VERIFIED AFT LEFT LAV OXYGEN MASK PNL DEPLOYED. REQUIRES MEL 32- 21-02. ACCOMPLISHED "M" PROCEDURE. RECEIVED MCC DISP APPR. PLACARD INSTALLED. R/R AFT LAV O2 CONTAINER ASSY PER A319 AMM 35-21. OK FOR SVC. MEL & Apr 5, 2025 · N341NB · Airbus A319114SDR DALA2025040602614Oxygen Panel · openSHIP 3225 DISC: PANEL NEXT TO AFT L DOOR IN GALLEY FLEW OPEN ON TAKEOFF. C/A: RESECURED O2 PANEL IAW A319 35-21. (LP: 0895227)Apr 4, 2025 · N325US · Airbus A320211SDR DALA2025040602616Psu · dislodgedSHIP 3162 DISC: 12ABC PSU PANEL HANGING DOWN. C/A: CLOSED PSU PANEL IAW A319 AMM 35-23. NO DEFECTS NOTED. OK FOR SVC. (LP: 7014326)Apr 3, 2025 · N362NB · Airbus A319114SDR DALA2025040102425Oxygen Mask · dislodgedSHIP 3423 FIRST CLASS LAV O2 MASKS DROPPED IN TURBULENCE. CORRECTIVE ACTION: REPACKED FWD LAV OXYGEN MASK ASSEMBLY PER A330 AMM 35-21. OK FOR SERVICE. (7177264)Apr 1, 2025 · N423DX · Airbus A330941SDR DALA2025033102385Oxygen Box · openSHIP 3423 DOOR 1L FA O2 MASK COMPARTMENT DOOR OPEN. CORRECTIVE ACTION: RESECURE O2 MASK IN CONTAINER PER A330 AMM 35-21. OK FOR SERVICE. (7177248)Mar 30, 2025 · N423DX · Airbus A330941SDR WX0A2025032832369Oxygen Bottle · faulted(AIRCRAFT NOT GROUNDED) OXYGEN CONTAINER ROW 26ABC CAME DOWN AFTER TAKE OFF. / REMOVED AND REPLACED EMERGENCY O2 CONTAINER AT 26ABC IAW AMM 35-21-41-000/400-001-A. OPS CHECK GOOD. THIS CLEARS MEL 35-21-01A. MDDR# 209815. PLACARDS REMOVED."Mar 27, 2025 · N338NV · Airbus A319111SDR CALA2025032800502Indication Sys · no testPSU 47JKL FOUND BLINKING DURING OXYGEN 3R TEST. INITIATOR REPLACED IAW CMM 35-22-29 & INSTALLATION TEST C/OUT FOUND SATISFACTORY IAW AMM 35-21-00.REFER EC/RA #3520-01774 FOR INITIATOR REPLACEMENT.Mar 26, 2025 · N38955 · Boeing 7879SDR UIEA2025032100365Stowage Box · no testDMI 225437 PASSENGER #3 OXIGEN MASK REST SWITCH DOESN'T TEST. SEAT NOT ALLOWED TO BE OCCUPIED.(<P>STOWAGE BOX WAS REPLACED IAW AMM 35-11-51-400-803-001 REV 144, 22DEC2024 AND TEST WAS SATISFACTORY. NO FOUND LEAKS.</P>)Mar 24, 2025 · N642GT · Boeing 7673Y0SDR DALA2025032502205Oxygen Mask · unwanted deploySHIP 3227 DISC: O-2 MASKS AT 1-C-D DROPPED ON PRE FLT. C/A: STOWED O-2 MASKS AT 1-C-D PER A320AMM 35-30 A/C OK FOR SERVICE. (LP: 7215432)Mar 23, 2025 · N327NW · Airbus A320211
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