# Service difficulty reports: JASC 3510

A list on [JASC 3510](https://openairdocs.org/jasc/3510.md).

Reports filed under 3510 · Crew Oxygen System, newest first.

Page 1 of 49 · 2,416 reports

- [SDR 2026FA0000901](https://openairdocs.org/sdr/2026FA0000901.md): Oxygen Mask · unsecure · Oct 23, 2026 · N873CA · Airbus A330343
  > EACH SHIFT HAS NOW FOUND MORE FINDINGS WHICH ARE RELATIVELY CRITICAL FINDINGS SUCH AS LIQUID IN SOME OXYGEN MASKS AND OXYGEN TUBING IN THE CABIN COMPARTMENT HANGING FREELY WITHOUT BEING SECURED. A SERVICEABLE TAG FROM THE COMPANY VALLAIR HAS ALSO BEEN FOUND.
- [SDR DALA2026102005754](https://openairdocs.org/sdr/DALA2026102005754.md): Oxygen Mask · expired · Oct 20, 2026 · N827NW · Airbus A330302
  > DURING COCKPIT OXY MASK INSPECTION FOUND F/O OXY MASK WITH EXP DATE: 2025-09(SEP)-19. CORRECTIVE ACTION: REPLACED MASK ASSY PER A330 AMM 35-12-41. (1875660) AIRCRAFT WAS GROUNDED.
- [SDR DALA2026101905722](https://openairdocs.org/sdr/DALA2026101905722.md): Oxygen Mask · faulted · Oct 18, 2026 · N955AT · Boeing 717200
  > F/O O2 MASK-SETTINGS DO NOT ALIGN WITH INSIDE INDICATOR IE AT 100% THE INDICATOR READS EMERGENCY, R/R F/O O2 MASK PER B717 AMM 35-13. (9520956) (AIRCRAFT GROUNDED).
- [SDR 2026FA0000838](https://openairdocs.org/sdr/2026FA0000838.md): Line · disconnected · Oct 15, 2026 · N873C · Airbus A330*
  > THIS IS AN OCCURANCE REPORT REGARDING THE FINIDNGS RELATED TO THE OXYGEN SYSTEM OF THE NATIONAL AIRCRAFT N873CA. OXY LINE NOT CONNECTED, CAPED AND FORGOTTEN, MASKS HELD IN/ TANGLED BY TAPE, INCORRECT INSTALL OF MASKS, DENT ON OXY LINE, UNKNOWN TORQUE/ SECURI
- [SDR AALA202610167734](https://openairdocs.org/sdr/AALA202610167734.md): Oxygen Box · leaking · Oct 14, 2026 · N179UW · Airbus A321211
  > AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED AND THE AIRCRAFT DIVERTED TO ORD DUE TO THE FLIGHT CREW REPORTING A SLOW CREW OXYGEN LEAK - THE AIRCRAFT LANDED SAFELY AT ORD WITHOUT FURTHER INCIDENT - MAINTENANCE FOUND THE 4TH OCCUPANT 02 FULL MASK STOWAGE BO
- [SDR ABXA20261004456](https://openairdocs.org/sdr/ABXA20261004456.md): Oxygen Mask · no test · Oct 4, 2026 · N317CM · Boeing 767338
  > DURING SCHEDULED MTC, CAPT. OXYGEN MASK DOES NOT TEST PROPERLY.MTX REMOVED AND REPLACED CAPT OXYGEN MASK STOWAGE BOX IAW AMM 35-11-51. OPS CHK AND LEAK CHK GOOD.A/C RETURNED TO SERVICE.
- [SDR DALA2026100505487](https://openairdocs.org/sdr/DALA2026100505487.md): Oxygen Mask · expired · Oct 4, 2026 · N825NW · Airbus A330302
  > FOUND CAPT OXY MASK WITH EXP DATE: 2026 01 (JAN)-16. REPLACED CAPTAINS O2 MASK PER A330 AMM 35-13. (1847085) AIRCRAFT WAS GROUNDED.
- [SDR 2026FA0000792](https://openairdocs.org/sdr/2026FA0000792.md): Oxygen Bottle · leaking · Sep 29, 2026 · N792MF · Boeing 777
  > OXY BOTTLE WAS INSTALLED IN THE AFT CARGO (T/C. R0731) ON 9TH JULY 26 AT FULL CHARGE, IT WAS NOTICED ON 23RD SEPT 26 TO BE DOWN TO 150PSI, AND CONFIRMED THE BOTTLE WAS TURNED OFF. REF NRC N2432. S/N'S. ALT282-48120 AND ALT282-47105 (T/C. R0734) WERE PACKAGED
- [SDR DALA2026100105456](https://openairdocs.org/sdr/DALA2026100105456.md): Oxygen Box · leaking · Sep 28, 2026 · N345NB · Airbus A319114
  > WORKING CREW O2 LEAK MSG. FO MASK BOX LEAKING. R & R MASK STOWING BOX PER AMM 35-12. NO LEAKS NOTED AT THIS TIME. OK SVC. R/R MASK PER AMM 35-12. NO LEAKS NOTED OK SVC. (LP: 6797929, AIRCRAFT WAS GROUNDED)
- [SDR DALA2026100405477](https://openairdocs.org/sdr/DALA2026100405477.md): Oxygen Mask · leaking · Sep 27, 2026 · N345NB · Airbus A319114
  > SUSPECTED CREW 02 LEAK. CA MASK AND BOX REPLACED. C/A: REFER TO LOG 6797929 FOR CORRECTIVE ACTION, OK TO CLOSE LOG. (LP: 1835948, AIRCRAFT WAS GROUNDED)
- [SDR DALA2026092405330](https://openairdocs.org/sdr/DALA2026092405330.md): Oxygen Mask · no test · Sep 23, 2026 · N988AT · Boeing 717200
  > CAPTAIN`S OXYGEN MASK DOES NOT TEST PROPERLY, R & R OBSERVER SEAT CREW O2 MASK BOX IAW AMM 35-13-09. (9110692) (AIRCRAFT GROUNDED).
- [SDR DALA2026092205297](https://openairdocs.org/sdr/DALA2026092205297.md): Oxygen Mask · broken · Sep 21, 2026 · N348NB · Airbus A319114
  > FO OXYGEN MASK PUSH TO TEST SWITCH BROKEN. SWAPPED FO O2 MASK AND BOX WITH 3RD OBS SEAT PER MEL 25-11-06A M PROCEDURES C/ W PLACARD INSTALLED. R & R FLIGHT CREW MASK STOWGE BOX IAW AMM 35-12 MEL CLEARED PLACARD REMOVED A/C OK FROR SERVACE. (LP: 6791268, AIRC
- [SDR 2026FA0000778](https://openairdocs.org/sdr/2026FA0000778.md): Door · open · Sep 19, 2026 · Cndair CL6002B19
  > ROUTE VVI-SRE FLIGHT 280, QRF TO VVI, DUE TO OXYGEN PANEL DOOR OPEN AFTER TAKEOFF. INSPECTED AND CLOSED OXYGEN SERVICE PANEL DOOR IAW AMM 12-16-35-710-003
- [SDR FDEA202609181369](https://openairdocs.org/sdr/FDEA202609181369.md): Oxygen Box · failed · Sep 18, 2026 · N198FE · Boeing 767300
  > DURING PREFLIGHT, DISCOVERED TEST TO PRESS AND RESET BUTTON ON FAR LEFT JUMPSEAT OXYGEN MASK WAS DETACHED. AMM 35-11-51-2, MM 35-11-51-2, R&R THE JUMP SEAT 02 BOX. OPS CHKD OK.
- [SDR VNAA2026092125002](https://openairdocs.org/sdr/VNAA2026092125002.md): Line · leaking · Sep 18, 2026 · N712PS · Cndair CL6002C10
  > OXY LOW PRESS MESSAGE ON TAKE OFF FROM THE BEFORE START CHECK TO TAKE OFF 260LBS OF CREW O2 WAS LOST APPROXIMATELY 10 LBS PER MINUTE. LEAK SUSPECTED. / T/S FOUND CREW OXYGEN SYS CAPILLARY LINE BROKEN, REMOVED AND REPLACED CREW OXYGEN CAPILLARY-LINE IAW AMM 35-
- [SDR DALA2026092105252](https://openairdocs.org/sdr/DALA2026092105252.md): Oxygen Mask · no test · Sep 18, 2026 · N375NC · Airbus A320212
  > CAPTAIN`S O2 MASK FAILED PREFLIGHT TEST. FLOW BLINKER DOES NOT SHOW WHEN PRESS TO TEST. REPACKED MASK REF A320 M/M 35-13. (LP: 9490280, AIRCRAFT WAS GROUNDED)
- [SDR DALA2026091305113](https://openairdocs.org/sdr/DALA2026091305113.md): Microphone · inoperative · Sep 12, 2026 · N351NW · Airbus A320212
  > F/O OS MASK MICROPHONE NOT WORKING. C/A: SWAPPED THIRD OBSERVER SEAT OT MASK WITH F/O AND FWD THIRD OBSERVER SAET TO MEL 25-11-07. R/R THIRD OBESERVER O2 MASK PER A320 AMM 35-12. LEAK AND OPS TESTS OK. RFID INDUCTION C/W. F/O MASK RFID REPLACEMENT C/W TO REFLE
- [SDR DALA2026091405115](https://openairdocs.org/sdr/DALA2026091405115.md): Microphone · inoperative · Sep 11, 2026 · N351NW · Airbus A320212
  > F/O OXYGEN MASK MICROPHONE DOESN'T WORK. RESEATED MIC CONNECTOR. CHK NORMAL. IAW AMM 35-13. (LP: 9494820, AIRCRAFT WAS GROUNDED)
- [SDR UIEA2026090900862](https://openairdocs.org/sdr/UIEA2026090900862.md): Oxygen Mask · leaking · Sep 9, 2026 · N663GT · Boeing 767324
  > FIRST OFFICER O2 MASK LEAKING. REMOVED & REPLACED THE O2 MASK ASSY IAW AMM 35-11-51. OPS CHKD GOOD. THIS CLEARS DMI 25894, PLACARDS REMOVED.
- [SDR DALA2026090905048](https://openairdocs.org/sdr/DALA2026090905048.md): Oxygen Mask · inoperative · Sep 9, 2026 · N953AT · Boeing 717200
  > FO'S OXYGEN MASK HARNESS DOES NOT INFLATE, R & R HARNESS PER AMM 35-12. (9096980) (AIRCRAFT GROUNDED).
- [SDR DALA2026091405114](https://openairdocs.org/sdr/DALA2026091405114.md): Oxygen Mask · inoperative · Sep 8, 2026 · N351NW · Airbus A320212
  > F/O 02 MASK MIC INOP. R & R F/O 02 MASK IAW AMM 35-12 OPS NORMAL. (LP: 9494800, AIRCRAFT WAS GROUNDED)
- [SDR DALA2026082604829](https://openairdocs.org/sdr/DALA2026082604829.md): Oxygen Mask · broken · Aug 24, 2026 · N323NB · Airbus A319114
  > DURING A CHECK FOUND TRIM ON MASK BROKEN. R & R F/O OXYGEN MASK IAW AMM 35-12. CKS GOOD. RFID C/W. (LP: 9463021, AIRCRAFT WAS GROUNDED)
- [SDR FDEA202608211220](https://openairdocs.org/sdr/FDEA202608211220.md): Oxygen Mask · no test · Aug 21, 2026 · N928FD · Boeing 75728A
  > DURING MX PREFLIGHT; CAPTAINS O2 MASK FAILS "PRESS TO TEST." REPLACED CAPT'S FULL FACE O2 MASK IAW B757 AMM CH. REF. LISTED ABOVE. OPS AND LEAK CKS GOOD. A/C OK FOR SERVICE.
- [SDR FDEA202608211213](https://openairdocs.org/sdr/FDEA202608211213.md): Oxygen Mask · no test · Aug 21, 2026 · N928FD · Boeing 75728A
  > DURING MX PREFLIGHT, CAPTAINS O2 MASK FAILED A PRESS TO TEST. PREMATURE REMOVAL/INSTALLATION. REPLACED CAPT'S FULL FACE O2 MASK IAW AMM 35-11-51-4-99. OPS & LEAK CHKD GOOD. ACFT OK FOR SERVICE.
- [SDR DALA2026082004764](https://openairdocs.org/sdr/DALA2026082004764.md): Oxygen Mask · leaking · Aug 19, 2026 · N372NW · Airbus A320212
  > CAPT 02 MASK BOX LEAKING. REPLACED CAPT O2 MASK BOX PER A320 AMM 35-12 ALL CKS OK. (LP: 9155501, AIRCRAFT WAS GROUNDED)
- [SDR DALA2026081304645](https://openairdocs.org/sdr/DALA2026081304645.md): Oxygen Mask · leaking · Aug 13, 2026 · N990AT · Boeing 717200
  > FO'S O2 MASK LEAKING AIR, R & R FO O2 MASK PER B717 AMM 35-13. (9579428) (AIRCRAFT GROUNDED).
- [SDR DALA2026082504822](https://openairdocs.org/sdr/DALA2026082504822.md): Oxygen Mask · leaking · Aug 11, 2026 · N378NW · Airbus A320211
  > LEAK ON SECOND OBSERVER CREW OXYGEN MASK AT COCKPIT. REMOVED SECOND OBSERVER CREW OXYGEN MASK P/N: MF10-05-11, S/N: 06700 ON UNSERVICEABLE CONDITION AT COCKPIT AS PER A320 FAM AMM 35-12-41-000-002-A. JOB IN PROGRESS. REPLACED SECOND OBSERVER CREW OXYGEN MASK
- [SDR ABXA20260810352](https://openairdocs.org/sdr/ABXA20260810352.md): Oxygen Bottle · low pressure · Aug 10, 2026 · N1361A · Boeing 76731B
  > DURING CREW PREDEPARTURE CHECK, EICAS PRESSURE INDICATION INOP READING 40 PSI. DEFERRED EICAS O2 PRESSOR INDICATION PER MEL 35-11-2-1 MX PROCEDURES COMPLY WITH PLACARD INSTALLED RE-INSPECT O2 PRESSURE BEFORE EA FLIGHT MUST BE COMPLY BY AUG 13, 2026. A/C RETURN
- [SDR DALA2026081104623](https://openairdocs.org/sdr/DALA2026081104623.md): Ptt Button · broken · Aug 8, 2026 · N315NB · Airbus A319114
  > SHIP 3115 DISC: DURING PREFLIGHT FOUND CAPT O2 MASK EMERG PR SELECTOR PTT BUTTON MISSING. SWAPPED ADDITIONAL OBS SEAT MASK WITH CAPTIANS MASK REF A319 AMM 35-12. PLACED OBS SEAT ON MEL 25-11-07 PLACARD INSTALLED M PROCEDURES COMPLIED WITH AC OK FOR SERVICE. R
- [SDR CALA2026080518294](https://openairdocs.org/sdr/CALA2026080518294.md): Sensor · faulted · Aug 3, 2026 · N77261 · Boeing 737824
  > NGS DEGRADED, BLUE LIGHT ILLUMINATED. FOUND FAULT NGS OXYGEN SENS FAIL ON EXISTING FAULT. PERFORMED BITE TEST REF 47-31 TASK 801. TEST FAILED OXYGEN SENSOR FAIL MESSAGE 47-30062. T/S CONTINUE IAW FIM 47-31, TASK 838. REPLACED NGS SYSTEM OXYGEN SENSOR, PER
- [SDR DALA2026080604531](https://openairdocs.org/sdr/DALA2026080604531.md): Oxygen Mask · no test · Aug 1, 2026 · N323NB · Airbus A319114
  > CAPTAIN`S O2 MASK DOES NOT TEST PROPERLY. YELLOW CROSS STAYS DISPLAYED AND DOES NOT GO AWAY. R & R CAPT O2 MASK STORAGE BOX. BOX BAD FROM STOCK. R & R BAD BOX WITH NEW, OPS TEST LEAK TEST OK IAW AMM 35-12. (LP: 8821852, AIRCRAFT WAS GROUNDED)
- [SDR A6WA202607278902](https://openairdocs.org/sdr/A6WA202607278902.md): Oxygen Panel · unsecure · Jul 27, 2026 · N466AW · Cndair CL6002B19
  > AIRCRAFT TOOK OFF FROM MKE AND SENT AN ACARS SAYING THEY HAVE A POSSIBLE PANEL OPEN AND THAT THEY ARE RETURNING TO MKE. THEY PROCEEDED TO GO BACK TO MKE AND BUILT UP AN AIR RETURN. ON THE WAY BACK THEY ALSO RECEIVED A STALL FAIL. AIRCRAFT REMOVED FROM SERVICE
- [SDR 6HUY2026073000025](https://openairdocs.org/sdr/6HUY2026073000025.md): Oxygen Mask · misrepaired · Jul 22, 2026
  > DURING SCHEDULED OVERHAUL OF A CREW OXYGEN MASK REGULATOR UNDER WORK ORDER WHU2605833 F IDENTIFIED THAT THE REGULATOR BLOCK LOCK HAD NOT BEEN SOLDERED IAW APPLICABLE COMPONENT MM. REVIEW OF THE MAINT RECORDS INDICATED THAT THE COMPONENT HAD PREVIOUSLY BEEN OV
- [SDR DALA2026072304296](https://openairdocs.org/sdr/DALA2026072304296.md): Oxygen Mask · unwanted deploy · Jul 20, 2026 · N339NB · Airbus A319114
  > AFT F/A JUMPSEAT OXYGEN MASKS PANEL DROPPED UPON LANDING. REINSTALLED O2 MASK PER AMM 35-10. (LP: 8804206, AIRCRAFT WAS GROUNDED)
- [SDR CALA2026072117908](https://openairdocs.org/sdr/CALA2026072117908.md): Oxygen Mask · leaking · Jul 20, 2026 · N444UA · Airbus A320232
  > OXYGEN MASK LEAKING. VERIFIED CAPTAINS OXYGEN MASK IS LEAKING AT A RAPID RATE & UNABLE TO STOP FLOW. SWAPPED CAPTAINS & 2ND OBSERVERS OXYGEN MASKS,, OPS CHKD GOOD, IAW AMM 35-12-41; DECLARING 2ND OBSERVERS SEAT INOPE DUE TO MASK. CONFIRMED NO LEAKS IN CURRE
- [SDR DALA2026073004417](https://openairdocs.org/sdr/DALA2026073004417.md): Oxygen Box · inoperative · Jul 18, 2026 · N333NB · Airbus A319114
  > OBSERVER SEAT INOP DUE TO O2 BOX WONT TEST. DEFERRED TO MEL 25-11-06C PLACARD INSTALLED NO (M) PROCEDURES. PERFORMED OPS TEST ON OXYGEN MASK. TEST GOOD. REPACKED OBSERVER O2 MASK. TESTED GOOD. REMOVED FROM MEL, PLACARD REMOVED, NO "M" PROCEDURES. ALL WORK DON
- [SDR ABXA20260715321](https://openairdocs.org/sdr/ABXA20260715321.md): Indicator · inaccurate · Jul 15, 2026 · N496MM · Boeing 767300
  > DURING MTC PRE-FLIGHT, CREW O2 SYSTEM PRESSURE EICAS INDICATION INACCURATE. PREVIOUSLY REPLACED VOLTAGE AVERAGING UNIT DETERMINED TO BE BAD FROM STOCK. DEFERRED CREW O2 PRESSURE INDICATION EICAS PER MEL 35-11-2-1. PLACARDS INSTALLED MBCB07-18-2026. MUST BE R
- [SDR ABXA20260713317](https://openairdocs.org/sdr/ABXA20260713317.md): Indicator · inaccurate · Jul 13, 2026 · N496MM · Boeing 767300
  > DURING MTC PRE-FLIGHT, CREW O2 SYSTEM PRESSURE EICAS INDICATION INACCURATE. DEFERRED IAW MEL 35-11-2-1. A/C RETURNED TO SERVICE.
- [SDR ABXA20260711313](https://openairdocs.org/sdr/ABXA20260711313.md): Audio Panel · malfunctioned · Jul 11, 2026 · N1013A · Boeing 76736N
  > DURING SERVICE CHECK FOUND CAPTAINS OXYGEN MASK MICROPHONE INOP. SWAPPED CAPTANS AUDIO PANEL WITH FIRST OBSERVERS, IAW AMM 23-12-02 OPS CHECK GOOD. AND DEFERRED. FIRST OBSERVER SEAT POS. IAW MEL 25-11-2-1A. RETURNED AC TO SERVICE.
- [SDR 2026FA0000567](https://openairdocs.org/sdr/2026FA0000567.md): Oxygen Mask · faulted · Jul 6, 2026 · N325GH · Cessna 525A
  > THE CREW REPORTS THE OXYGEN MASC CONTINUOUSLY FLOW OF OXYGEN AT 100 % FLOW, ATTEMPTEN TO STOP FLOW WITHOUT SUCCESS MASC WAS DISCONNECTED O2 FLOW STOPPED.MAINTENANCE REPLACED THE MASK WITH OVERHUALED UNIT
- [SDR IPXA2026070613325](https://openairdocs.org/sdr/IPXA2026070613325.md): Oxygen Mask · no test · Jul 5, 2026 · N355UP · Boeing 76734AF
  > OBSERVERS OXYGEN MASK DOES NOT FLOW WHEN EMERGENCY BUTTON IS PUSHED. REMOVED AND REPLACED OBSERVER`S OXYGEN MASK IAW AMM 35-11-51. OPS CHKD GOOD.
- [SDR ABXA20260629295](https://openairdocs.org/sdr/ABXA20260629295.md): Bottle · leaking · Jun 29, 2026 · N493MM · Boeing 767300
  > DURING INSP/MAINT, NR 1 CREW O2 BOTTLE WILL NOT CLOSE FULLY, CONTINUES TO LEAK AFTER BEING SHUT. REMOVED AND REPLACED THE #1 CREW O2 BOTTLE IAW B767 AMM 35-31-01. OPS CHECK GOOD 1780 PSI C/W MAB B767-35-1. A/C RETURNED TO SERVICE.
- [SDR AALA202606298713](https://openairdocs.org/sdr/AALA202606298713.md): Actuator · inoperative · Jun 28, 2026 · N324RA · Boeing 7378
  > AIRCRAFT IN BASE MAINTENANCE: FORWARD RIGHT FLIGHT ATTENDANT OXYGEN MASK DID NOT DEPLOY. REPLACED DOOR LATCH ACTUATOR PER AMM 35-22-21 AND ACCOMPLISHED SATISFACTORY OPERATIONAL CHECK.
- [SDR DALA2026062903843](https://openairdocs.org/sdr/DALA2026062903843.md): Oxygen Mask · no test · Jun 27, 2026 · N940AT · Boeing 717200
  > CAPT O2 MASK FAILED TEST. R & R FO'S CREW O2 MASK PER B717 AMM 35-23. (6545751) (AIRCRAFT GROUNDED).
- [SDR DALA2026062703819](https://openairdocs.org/sdr/DALA2026062703819.md): Oxygen Mask · damaged · Jun 24, 2026 · N369NB · Airbus A319114
  > SCRATCHED CREW OXYGEN MASK OBSERVER POSITION ON COCKPIT. REMOVED CREW OXYGEN MASK POSITION 3RD OCCUPANT ON COCKPIT ON UNSERVICEABLE CONDITION IAW AMM 35-12-41-000-002A STEP 4.. REPLACED CREW OXYGEN MASK OBSERVER POSITION ON COCKPIT IAW FAM AMM 35-12-41-000
- [SDR ABXA20260615262](https://openairdocs.org/sdr/ABXA20260615262.md): Stowage Box · defective · Jun 15, 2026 · N774AX · Boeing 767281
  > SUPERNUMERARY LEFT SEAT OXYGEN MASK BOX RESET TAB INOP. REMOVED AND REPLACED SUPERNUMERARY LEFT HAND SEAT OXYGEN MASK BOX IAW B767 35-11-51. OPS AND LEAK CHECK GOOD. NO REACTIVATION PROCEDURE REQUIRED. A/C RETURNED TO SERVICE.
- [SDR UIEA2026061500500](https://openairdocs.org/sdr/UIEA2026061500500.md): Button · inoperative · Jun 11, 2026 · N702GT · Boeing 777F16
  > 1ST OBS O2 MASK RESET BUTTON INOPERATIVE. SWAPPED 1ST OBS O2 MASK & STOWAGE BOX WITH 2ND OBS O2 MASK & STOWAGE BOX PER AMM 35-11-19 & IPC 35-11-18-01. OPS & LEAK CHKD OK. R & R 2ND OBS O2 MASK BOX ASSY IAW AMM 35-11-18 REV 107 & IPC 35-11-18-01 REV 24. LEAK
- [SDR CALA2026060916949](https://openairdocs.org/sdr/CALA2026060916949.md): Oxygen Mask · leaking · Jun 7, 2026 · N69888 · Boeing 737924ER
  > CREW O2 AT 400PSI FOUND SOURCE OF LEAK TO BE OBSERVERS MASK WAS NOT IN STOWED POSITION, WHICH CAUSED THE EMERGANCY SWITCH ON THE MASK TO DEPLETE CREW O2. REPACKED OBSERVERS MASK LEAKED CHECKED IN REF TO AMM 35-12-85-910-801 CREW O2 WAS AT 400PSI SERVICED CREW
- [SDR FDEA202606060679](https://openairdocs.org/sdr/FDEA202606060679.md): Stowage Box · broken · Jun 6, 2026 · N681FE · Airbus A300F4605R
  > DURING REMOVAL OF FIRST OBSERVER SEAT FOUND O2 MASK WITH BROKEN MOUNTING SCREW. REMOVED AND REPLACED OBSERVER`S O2 BOX REF AMM 35-12-51-04
- [SDR CALA2026060816913](https://openairdocs.org/sdr/CALA2026060816913.md): Oxygen Mask · leaking · Jun 5, 2026 · N686UA · Boeing 7673CB
  > CREW OXYGEN PRESSURE LEAKING DURING FLIGHT FROM O2 MASK BEHIND C A ON ARRIVAL CREW NOTED; OXYGEN LEVEL AT 1620 PSI ON DEPARTURE. BY ARRIVAL CREW O2 DEPLETED TO 1460 PSI. CAPT NOTICED O2 MASK BEHIND (CAPT SEAT) LEAKED. PERFORMED GVI OF AFT (LH) STOWAGE BOX PER

Next page: https://openairdocs.org/jasc/3510/reports.md?page=2

## The whole list in SQL

Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS:

```sql
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 = '3510'
ORDER BY difficulty_date DESC
```

This list as a web page: https://openairdocs.org/jasc/3510/reports

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