# Service difficulty reports: N502DN

A list on [N502DN](https://openairdocs.org/aircraft/N502DN.md).

Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model. Newest first.

- [SDR DALA2026042202596](https://openairdocs.org/sdr/DALA2026042202596.md): Oxygen Gen · tripped · Apr 21, 2026 · N502DN · Airbus A350941 · Passenger Oxygen System
  > EA/EO DUE TO INCOMING OPEN UP CHECK FOUND AT DOOR #4L THE CHEMICAL GENERATOR DISCHARGED. REMOVED AND REPLACED O2 CONTAINERS AS PER A350 AMM A350-A-25-33- 66. PERFORMED OPERATIONAL TEST AS PER WORK CARD 3520-2001. (LP# 1555191)
- [SDR DALA2026012900715](https://openairdocs.org/sdr/DALA2026012900715.md): Spoiler · faulted · Jan 24, 2026 · N502DN · Airbus A350941 · Drag Control System
  > DE- DUE TO A SPOILER NUMBER 2 FAULT. REPLACED LEFT SPOILER 2 FCRM (202CL1). (LP# 8063215)
- [SDR DALA2025112508594](https://openairdocs.org/sdr/DALA2025112508594.md): Warning Message · illuminated · Nov 23, 2025 · N502DN · Airbus A350941 · Engine Anti-Icing System
  > ATB - A/C RETURNED TO ATL DUE TO LEFT ENGINE STATOR ANTI-ICE ECAM MESSAGE. UNABLE TO AVOID ENROUTE ICING CONDITIONS. REPLACED LEFT ENGINE EEC. (LP# 8042352)
- [SDR DALA2025111708397](https://openairdocs.org/sdr/DALA2025111708397.md): Light · inoperative · Nov 11, 2025 · N502DN · Airbus A350941 · Emergency Lighting
  > EMERGENCY ESCAPE PATHWAY LIGHT AT 23HJ INOPERATIVE. DEFER TO MEL 33-50-07A. PLACARD INSTALLED. (LP# 8042309)
- [SDR DALA2025072205513](https://openairdocs.org/sdr/DALA2025072205513.md): Engine · unknown · Jul 18, 2025 · N502DN · Airbus A350941 · Engine (Turbine/Turboprop)
  > SHIP 3502 - RTB - DUE TO PASSENGER AT SEAT 20J NOTICED SMOKE COMING FROM THE BOTTOM OF THE #2 ENGINE AND ADVISED THE FA. THE FA CONTACTED THE FLIGHT DECK AND THE TAKEOFF WAS REJECTED. PERFORMED GVI AND RAN #2 ENGINE FOR 5 MINS. CONFIRMED NO SMOKE FROM EXHAUS
- [SDR DALA2025063004824](https://openairdocs.org/sdr/DALA2025063004824.md): Sign · inoperative · Jun 25, 2025 · N502DN · Airbus A350941 · Emergency Lighting
  > DOOR 2L OVERHEAD GREEN EXIT LIGHT DOES NOT ILLUMINATE. R/R 2L DOOR OVERHEAD EMER EXIT SIGN LT PER A350 AMM 25-23. (LP# 7467451)
- [SDR DALA2025032702249](https://openairdocs.org/sdr/DALA2025032702249.md): Light · inoperative · Mar 24, 2025 · N502DN · Airbus A350941 · Emergency Lighting
  > DOOR 2L AFT EMERGENCY FLOOD LIGHT INOP. VERIFIED LIGHT ASSEMBLY WAS IN WORKING ORDER. EPSU TESTED OK. UPON INSPECTION OF WIRE BUNDLE FROM EPSU TO LIGHT ASSEMBLY, FOUND CANNON PLUG LOOSE AND PINS NOT ENGAGED. AFTER SECURING, OPS CK GOOD. REF 33-51-32. OK FOR SV
- [SDR DALA2025022801558](https://openairdocs.org/sdr/DALA2025022801558.md): Elec Connector · not connected · Feb 27, 2025 · N502DN · Airbus A350941 · Light System Wiring
  > AIRCRAT 3502, FA REPORTS 2L DOOR EMERGENCY EXIT LIGHT INOP. CORRECTIVE ACTION: FOUND CANNON PLUG NOT INSTALLED ON LIGHT ASSY. CONNECTED CANNON PLUG. EMERGENCY EXIT LIGHT OPS NML NOW. (LP 6839687)
- [SDR DALA2024072207377](https://openairdocs.org/sdr/DALA2024072207377.md): Lens · missing · Jul 21, 2024 · N502DN · Airbus A350941 · Emergency Lighting
  > EMERGENCY LIGHT LENS MISSING AFT OF LAV R1. OK TO FWD TO MEL 33-50-07A. PLACARDS INSTALLED. NO "M" PROCEDURES. (LP# 5142520)
- [SDR DALA2024022702744](https://openairdocs.org/sdr/DALA2024022702744.md): Light · unknown · Feb 22, 2024 · N502DN · Airbus A350941 · Emergency Lighting
  > 3L DOOR EMERGENCY LIGHT INOP. PERFORMED EMERGENCY LIGHT TEST PER A350 AMM 33-50. OPS CK GOOD. (LP# 5292619)
- [SDR DALA2023050103365](https://openairdocs.org/sdr/DALA2023050103365.md): Unknown · unknown · Apr 30, 2023 · N502DN · Airbus A350941 · Empennage Structure
  > AIRCRAFT 3502, RH HORIZONTAL STAB BUSHING MIGRATION. CORRECTIVE ACTION: REPAIRED RIGHT HORIZONTAL STAB BUSHING PER WORK CARD 5510-9-01108-02B. (LP 2744383)
- [SDR DALA2023050103364](https://openairdocs.org/sdr/DALA2023050103364.md): Unknown · unknown · Apr 30, 2023 · N502DN · Airbus A350941 · Empennage Structure
  > AIRCRAFT 3502, LEFT HORIZONTAL STAB BUSHING MIGRATION. CORRECTIVE ACTION: REPAIRED RIGHT HORIZONTAL STAB BUSHING PER WORK CARD 5510-9-01108-02AB. (LP 2744385)
- [SDR DALA2023042903350](https://openairdocs.org/sdr/DALA2023042903350.md): Unknown · unknown · Apr 25, 2023 · N502DN · Airbus A350941 · Wing Main, Frame Structure
  > AIRCRAFT 3502, INSPECTED RIGHT OUTER WING FUEL TANK GLOW SEALANT ON RIGHT WING. CORRECTIVE ACTION: REMOVED NECESSARY SEALANT AND RESTORED WING GLOW SEALANT PER WC 5720-1102-01B. (LP 2736250)
- [SDR DALA2023042903349](https://openairdocs.org/sdr/DALA2023042903349.md): Unknown · unknown · Apr 25, 2023 · N502DN · Airbus A350941 · Wing Main, Frame Structure
  > AIRCRAFT 3502, INSPECTED LEFT OUTER WING MIDBOX FUEL TANK GLOW SEALANT ON LEFT WING. CORRECTIVE ACTION: REMOVED NECESSARY SEALANT AND RESTORED WING GLOW SEALANT PER WC 5720-1102-01A. (LP 2736245)
- [SDR DALA2023042903348](https://openairdocs.org/sdr/DALA2023042903348.md): Unknown · unknown · Apr 25, 2023 · N502DN · Airbus A350941 · Wing Main, Frame Structure
  > AIRCRAFT 3502, INSPECTED OUTER WING GLOW SEALANT FOR OPTIMISATION IN RIGHTWING FUEL TANK. CORRECTIVE ACTION: REMOVED NECESSARY SEALANT AND RESTORED WING GLOW SEALANT PER WC 5720-1102-05B. (LP 2736243)
- [SDR DALA2023042903347](https://openairdocs.org/sdr/DALA2023042903347.md): Unknown · unknown · Apr 25, 2023 · N502DN · Airbus A350941 · Wing Main, Frame Structure
  > AIRCRAFT 3502, INSPECTED OUTER WING GLOW SEALANT FOR OPTIMISATION IN LH WING FUEL TANK. CORRECTIVE ACTION: REMOVED NECESSARY SEALANT AND RESTORED WING GLOW SEALANT PER WC 5720-1102-01A. (LP 2736237)
- [SDR DALA2023042903346](https://openairdocs.org/sdr/DALA2023042903346.md): Unknown · unknown · Apr 25, 2023 · N502DN · Airbus A350941 · Wing Main, Frame Structure
  > AIRCRAFT 3502, INSPECTED OUTER WING GLOW SEALANT FOR OPTIMISATION IN RIGHT WING FUEL TANK. CORRECTIVE ACTION: REMOVED NECESSARY SEALANT AND RESTORED WING GLOW SEALANT PER WC 5720-1102-01A. (LP 2736232)
- [SDR DALA2023042903345](https://openairdocs.org/sdr/DALA2023042903345.md): Unknown · unknown · Apr 25, 2023 · N502DN · Airbus A350941 · Wing Main, Frame Structure
  > AIRCRAFT 3502, INSPECTED OUTER WING GLOW SEALANT FOR OPTIMISATION IN LH WING FUEL TANK. CORRECTIVE ACTION: REMOVED NECESSARY SEALANT AND RESTORED WING GLOW SEALANT PER WC 5720-1102-07A. (LP 2736228)
- [SDR DALA2023041202859](https://openairdocs.org/sdr/DALA2023041202859.md): Unknown · unknown · Apr 8, 2023 · N502DN · Airbus A350941 · Ice/Rain Protection System
  > SHIP 3502 -DIV- TO LAX DUE TO THE LEFT ENGINE ANTI ICE VALVE FAILED CLOSED. CORRECTIVE ACTION: REPLACED LEFT ENGINE PRESSURE REGULATING VALVE. (LP 4079720)
- [SDR DALA2022110107067](https://openairdocs.org/sdr/DALA2022110107067.md): Oxygen Mask · deployed · Oct 29, 2022 · N502DN · Airbus A350941 · Passenger Oxygen System
  > SHIP 3502 - O2 MASKS DROPPED AT SEATS 22E AND 22D. CORRECTIVE ACTION: REPACKED O2 MASKS AT SEATS 22E AND 22D IAW A350 AMM 35-21. OPS CHECK GOOD. OK FOR SVC. (9042742)
- [SDR DALA2022102106821](https://openairdocs.org/sdr/DALA2022102106821.md): Panel · unsecure · Oct 20, 2022 · N502DN · Airbus A350941 · Passenger Oxygen System
  > SHIP 3502 - ROW 22 CENTER SEATS OXYGEN MASK DEPLOYED. CORRECTIVE ACTION: RE-SECURED OXY MASK PANEL.(9042481) ORIG SUBMISSION DATE: 10/21/2022
- [SDR DALA2022092606295](https://openairdocs.org/sdr/DALA2022092606295.md): Controller · inoperative · Sep 23, 2022 · N502DN · Airbus A350941 · Emergency Lighting
  > SHIP 3502 - EMERGENCY FLOOR LIGHTING DAMAGED OR INOPERATIVE. CORRECTIVE ACTION: REPLACED CARD 703XY REF A350 AMM TASK A350-A-24-74-32-A0001- 520A-A. LIGHTS TEST GOOD. (2422181)
- [SDR DALA2022080205307](https://openairdocs.org/sdr/DALA2022080205307.md): None · none · Aug 2, 2022 · N502DN · Airbus A350941 · Emergency Lighting
  > SHIP 3502 ROWS 50ABC AND 54ABC SEAT MOUNTED EMERGENCY LIGHTS INOP. CORRECTIVE ACTION: REPLACED MISSING LIGHT AT ROW 50. NO POWER AT ROW 54ABC LIGHT. FOUND CONNECTOR J10 UNDER SEAT 53ABC WITH PUSHED PIN. RE-SEATED PIN. (9236536)
- [SDR DALA2021101206244](https://openairdocs.org/sdr/DALA2021101206244.md): Outflow Valve · uncontrollable · Oct 11, 2021 · N502DN · Airbus A300* · Cabin Pressure Control System
  > SHIP 3502 -ATB- DUE TO UNABLE TO PRESSURIZE CABIN. CORRECTIVE ACTION: REPLACED CPIOM PER A350 AMM 42-11 AND BOTH OCU'S PER A350 AMM 21-31. PERFORMED PRESSURE OPERATIONAL TEST, LEAK MEASUREMENT AND FUNCTIONAL TESTOF OVER PRESSURE RELIEF VALVE PER A350 AMM 21-31
- [SDR DALA2021100406036](https://openairdocs.org/sdr/DALA2021100406036.md): None · none · Oct 3, 2021 · N502DN · Airbus A350941 · Emergency Lighting
  > SHIP 3502 - EMERG LITES INOP AT SEATS 35, 37, 39. CORRECTIVE ACTION: RESEATED CONNECTORS AT SEAT 34. LIGHTS OP GOOD REF A350 AMM 33-51. (7796329)
- [SDR DALA2021081004560](https://openairdocs.org/sdr/DALA2021081004560.md): Wire Harness · damaged · Jul 31, 2021 · N502DN · Airbus A350941 · Light System Wiring
  > SHIP 3502 - ON SVC FOUND EVERY OTHER SEAT MOUNTED EMERGENCY LT INOP FROM DOOR 2R TO 3R.CORRECTIVE ACTION: FOUND EMERGENCY PATH LIGHT HARNESS DAMAGED/SHORTED ON SEAT 34HJ. REPAIRED HARNESS PER A350 ESPM 20-53-21. EMERGENCY LIGHTS OPS CHECKS NORMAL PER A350 AMM
- [SDR DALA2021072604196](https://openairdocs.org/sdr/DALA2021072604196.md): Oven · smoke · Jul 23, 2021 · N502DN · Airbus A350941 · Buffet/Galleys
  > SHIP 3502 - FWD GALLEY SINGLE OVEN SMOKING. CORRECTIVE ACTION: DEFERRED OVEN #5 IN FWD GALLEY PRECAUTIONARY DUE SMOKE. R/R NBR 5 OVEN FWD GALLEY PER A350 AMM 25-36.(1885274)
- [SDR DALA2021061003182](https://openairdocs.org/sdr/DALA2021061003182.md): Fitting · leaking · Jun 10, 2021 · N502DN · Airbus A350941 · Hydraulic System, Main
  > SHIP 3502 -DIV- TO DTW DUE TO LOSS OF GREEN HYDRAULIC SYSTEM. CORRECTIVE ACTION: FOUND #1 ENG GREEN EDP ROSAN FITTING ON LOW PRESSURE CONNECTION PULLED OUT OF IMPELLER HOUSING. REPLACED #1 EDP, CASE DRAIN FILTER AND HP FILTER.(7310920)
- [SDR DALA2021020400664](https://openairdocs.org/sdr/DALA2021020400664.md): Seal · damaged · Feb 3, 2021 · N502DN · Airbus A350941 · Passenger/Crew Doors
  > SHIP 3502 4L ENTRY DOOR SEAL NOISY. CORRECTIVE ACTION CLEARED FOD AND NO FOUND DAMAGED ON THE SEAL AND AFTER CLOSED 4L DOOR CONFIRMED SEAL CONDITION GOOD.
- [SDR DALA2021020300635](https://openairdocs.org/sdr/DALA2021020300635.md): Seal · failed · Feb 2, 2021 · N502DN · Airbus A350941 · Service Doors
  > SHIP 3502 VERY LOUD NOISE IN AREA IN VICINITY OF 3R DOOR WITH VIBRATION. CORRECTIVE ACTION: REPLACED 3R DOOR SEAL PER A350 AMM 52-12. (7667742)
- [SDR DALA2021012200453](https://openairdocs.org/sdr/DALA2021012200453.md): Seal · leaking · Jan 21, 2021 · N502DN · Airbus A350941 · Service Doors
  > POSSIBLE DOOR SEAL LEAKING AT DOOR 3R. CORRECTIVE ACTION: T/S & ACCOMPLISHED VIS INS OF SEALANT ON FRAME DOOR 3R, AS PER AMM. CHECKS N.T.F. OK. PERFORMED BITE TEST OF CPIOM & DSCS SYSTEM, OK AS PER AMM. CLEANED DOOR WAY & FRAME, SECURED DOOR CLOSED.
- [SDR DALA2020083102901](https://openairdocs.org/sdr/DALA2020083102901.md): Pressure Switch · inoperative · Jun 6, 2020 · N502DN · Airbus A350941 · Door Warning System
  > DOOR RESIDUAL DIFFERENTIAL PRESSURE DETECTION INOP ALL DOORS LIGHTS FLASHING. CORRECTIVE ACTION: REPLACED DIFFERENTIAL PRESSURE SWITCH (FIN 302MJ) PER A350 AMM 52-71. LEAK CHECK AND BITE CHECK GOOD.
- [SDR DALA2019091705386](https://openairdocs.org/sdr/DALA2019091705386.md): Light · missing · Sep 17, 2019 · N502DN · Airbus A350941 · Emergency Lighting
  > SEAT 48G SEAT MOUNTED FLOOR PATH LIGHT MISSING. ALL OTHER FLOOR PATH LIGHTS OPERATE NORMALLY. DEFERRED PER MEL 33-50-07A UNTIL NEW SEAT MOUNTED EMERGENCY LIGHT IS AVAILABLE TO INSTALL. LP 5417102
- [SDR DALA2019031801776](https://openairdocs.org/sdr/DALA2019031801776.md): Power Supply · inoperative · Mar 17, 2019 · N502DN · Airbus A350941 · Emergency Lighting
  > ON ARRIVAL, FOUND DISPATCH MESSAGE "CABIN EMERGENCY EXIT LIGHT". REPLACED EMERGENCY POWER SUPPLY UNIT 102WL3. LP 3391175
- [SDR DALA2018082205205](https://openairdocs.org/sdr/DALA2018082205205.md): Rccb · failed · Aug 21, 2018 · N502DN · Airbus A350941 · Emergency Lighting
  > FLOOR EMERGENCY LIGHT DAMAGED. FOUND RCCB 1024XP FAILED OPEN. REPLACED RCCB 1024XP.
- [SDR DALA2017100507293](https://openairdocs.org/sdr/DALA2017100507293.md): Power Supply · faulted · Oct 2, 2017 · N502DN · Airbus A350941 · Emergency Lighting
  > DISPATCH MESSAGE FOR CABIN EMERGENCY LIGHT POWER SUPPLY 101WL3. REPLACED THE EPSU.

## 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 n_number = 'N502DN' AND registry_match = 'registration'
ORDER BY difficulty_date DESC
```

This list as a web page: https://openairdocs.org/aircraft/N502DN/reports

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