# Service difficulty reports: N504DZ A list on [N504DZ](https://openairdocs.org/aircraft/N504DZ.md). Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model. Newest first. - [SDR DALA2026042802679](https://openairdocs.org/sdr/DALA2026042802679.md): Intercostal · damaged · Apr 27, 2026 · N504DZ · Airbus A321271NX · Fuselage Miscellaneous Structure > AIRCRAFT 5004, WHILE PERFORMING DVI ON PRI HOLE LABELED B6 ON RH SIDE FOUND TO HAVE INTERCOSTAL BEHIND HOLE. DAMAGE FOUND ON INTERCOSTAL AS WELL ON RADIUS. OVERSIIZED HOLE PER ER/A 617950-14 SECTION III. - [SDR DALA2026042602633](https://openairdocs.org/sdr/DALA2026042602633.md): Skin · dented · Apr 25, 2026 · N504DZ · Airbus A321271NX · Fuselage Main, Plate/Skin > AIRCRAFT ARRIVED INTO SEA, THE A/C EXPERIENCED HEAT DAMAGE DUE TO ELECTRICAL ARCING NEAR THE POWER RECEPTABLE DOOR. FRAME 7 HAS SEVERAL DENTS ON FLANGE THAT MATES WITH SKIN BETWEEN STR 42L AND STR 42R. CORRECTIVE ACTION: FR7 REPAIR SPLICE WAS REMOVED, FABRICAT - [SDR DALA2026042602632](https://openairdocs.org/sdr/DALA2026042602632.md): Skin · mechanic error · Apr 25, 2026 · N504DZ · Airbus A321271NX · Fuselage Main, Plate/Skin > WHILE DRILLING NEW SKIN ASSY, FOUND NEW STR41 LH AND STR41 RH DO NOT ALIGN WITH EXISTING END FITTINGS AT FR 24. PERFORM CUTOUT OF S-41RH (P/N D53137178200) FWD OF FR24 AS DEFINED IN FIGURE 29, SHEET 2 PER SRM 51-27-00. PLUG THE TEN MISDRILLED HOLES IN THE LO - [SDR DALA2026042602631](https://openairdocs.org/sdr/DALA2026042602631.md): Receptacle · arced · Apr 25, 2026 · N504DZ · Airbus A321271NX · Fuselage Main, Bulkhead Fuselage wiring > AIRCRAFT ARRIVED INTO SEA, THE A/C EXPERIENCED HEAT DAMAGE DUE TO ELECTRICAL ARCING NEAR THE POWER RECEPTABLE DOOR. RH SIDE, LAP SEAM, FR 1-11 MULTIPLE HOLES FOUND IN OUT OF ROUND CONDITION. CORRECTIVE ACTION: PERFORMED TRIMOUT OF FUSELAGE SKIN, FABRICATED REP - [SDR DALA2026042602630](https://openairdocs.org/sdr/DALA2026042602630.md): Skin · damaged · Apr 25, 2026 · N504DZ · Airbus A321271NX · Fuselage Main, Plate/Skin > AIRCRAFT ARRIVED INTO SEA, THE A/C EXPERIENCED HEAT DAMAGE DUE TO ELECTRICAL ARCING NEAR THE POWER RECEPTABLE DOOR. FR 6-12 MULTIPLE HOLES FOUND IN OUT OF ROUND CONDITION. PERFORMED TRIMOUT OF FUSELAGE SKIN, FABRICATED REPAIR PARTS AND INSTALLED PER ER/A 617 - [SDR DALA2026011300315](https://openairdocs.org/sdr/DALA2026011300315.md): Seal · leaking · Jan 13, 2026 · N504DZ · Airbus A321271NX · Turbine Engine Oil System > AIRCRAFT 5004, FUMES EVENT IN CABIN AFTER PUSHBACK. FOUND OIL WETTING ON NR 1 ENGINE NOSE CONE AREA. REPLACED NR 1 ENGINE FAN SHAFT COVER SEAL IAW AMM 72-15-00-960- 801-A. (LP 8081293, 1397384) - [SDR DALA2025091506751](https://openairdocs.org/sdr/DALA2025091506751.md): Oil System · leaking · Sep 13, 2025 · N504DZ · Airbus A321271NX · Turbine Engine Oil System > DIVERTED TO SAV DUE TO SWEET DIRTY SOCK SMELL. FOUND OIL BEHIND LEFT ENGINE SPINNER, REPLACED SAME. PERFORMED DUCT BURN. (LP 7590070, 1195522) - [SDR DALA2025061804582](https://openairdocs.org/sdr/DALA2025061804582.md): Compressor · stalled · Jun 18, 2025 · N504DZ · Airbus A321271NX · Turbine Engine Compressor Section > DIV- DIVERTED AND DECLARED EMERGENCY TO HNL DUE TO LEFT ENGINE COMPRESSOR STALLS ON TAKEOFF. CORRECTIVE ACTION: PERFORMED GVI WITH NO EVIDENCE OF BIRD INGESTIONS. REPLACED LEFT ENGINE. - [SDR DALA2025040302498](https://openairdocs.org/sdr/DALA2025040302498.md): Oil System · leaking · Mar 25, 2025 · N504DZ · Airbus A321271NX · Turbine Engine Oil System > SHIP 5004- ATB - AIR TURN BACK TO SEA DUE TO ODOR IN THE CABIN WHILE CLIMBING THROUGH 10K FEET. DECLARED EMERGENCY AND CREW USED MASKS. CORRECTIVE ACTION: SNIFFER SHOWING LEFT ENGINE AS SOURCE OF ODOR. BORESCOPED LEFT ENGINE AND FOUND OIL WETTING IN LPC AND HP - [SDR DALA2025031101883](https://openairdocs.org/sdr/DALA2025031101883.md): Floor Panel · damaged · Mar 10, 2025 · N504DZ · Airbus A321271NX · Fuselage Floor Panel > SHIP 5004 DURING WORK CARD 0591-0501 FOUND DAMAGE ON THE AFT MOST FLOOR PANEL IN THE FWD CARGO. CORRECTIVE ACTION: DMG IS UPPER SKIN AND CORE AREA AND MEASURES 2IN X 2IN. PER A321 NEO SRM 53-02-00-283-001 CAN APPLY TEMP REPAIR. APPLIED TEMP REPAIR PER SRM 51-7 - [SDR DALA2025012000468](https://openairdocs.org/sdr/DALA2025012000468.md): Apu · no test · Jan 17, 2025 · N504DZ · Airbus A321271NX · APU Core Engine > AIRCRAFT 5004, ATTEMPTED APU COLD SOAK START. FL 360. SAT -53 C. NO START AFTER 3 ATTEMPTS. CORRECTIVE ACTION: DEFERRED PER MEL 49-10-01A. SUBSEQUENT MAINTENANCE APU SHUTDOWN REPORT SHOWS "NO FLAME" CHECK IGNITION SYSTEM FCU (8022KM) FUEL SUPPLY LAST 7 SHUTDOW - [SDR DALA2024092109275](https://openairdocs.org/sdr/DALA2024092109275.md): Actuator · faulted · Sep 18, 2024 · N504DZ · Airbus A321271NX · Cabin Cooling System > AIRCRAFT 5004, FA'S REPORTED A STINKY SMELL "STINKY SALON" AFTER FINAL IN DESCENT APPROX 12K AFT 2 FA REPORTED NAUSEA AND HEADACHES. CORRECTIVE ACTION: ACCOMPLISHED LEVEL B DECONTAMINATION OF THE ECS 1 & 2 LEVEL B STAGE 1 IAW A321 AMM 21-00-00-615-807-A PAGE 1 - [SDR DALA2024091308989](https://openairdocs.org/sdr/DALA2024091308989.md): Oil System · leaking · Sep 12, 2024 · N504DZ · Airbus A321271NX · APU Oil System > AIRCRAFT 5004, CABIN CREW REPORTED DIRTY SOCK SMELL UPON LANDING BEFORE APU BLEED WAS IN USE. CORRECTIVE ACTION: FOUND OIL PUDDLEING AT INLET CONE AREA.R/R FAN SHAFT COVER SEAL. (LP 5134050) - [SDR DALA2024052205423](https://openairdocs.org/sdr/DALA2024052205423.md): Receptacle · arced · May 21, 2024 · N504DZ · Airbus A321271NX · Fuselage Main, Structure > AIRCRAFT 5004, UPON ARRIVAL INTO SEA, THE A/C EXPERIENCED HEAT DAMAGE DUE TO ELECTRICAL ARCING NEAR THE POWER RECEPTACLE DOOR. DAMAGE CONSISTS OF AN AREA APPROXIMATELY 12 IN DIAMETER IN THE NOSE FORWARD FUSELAGE SKIN PANEL (P/N D53137195202) CENTERED NEAR THE - [SDR DALA2024052205424](https://openairdocs.org/sdr/DALA2024052205424.md): Skin · damaged · May 19, 2024 · N504DZ · Airbus A321271NX · Fuselage Main, Plate/Skin > AIRCRAFT 5004, AIRCRAFT 5004, UPON ARRIVAL INTO SEA, THE A/C EXPERIENCED HEAT DAMAGE DUE TO ELECTRICAL ARCING NEAR THE POWER RECEPTACLE DOOR. FUSELAGE SKIN BETWEEN FRAMES 6 THRU 8 AROUND GROUND POWER PANEL INCURRED HEAT DAMAGE FROM ELECTRICAL FIRE. CORRECTIVE - [SDR DALA2024051005090](https://openairdocs.org/sdr/DALA2024051005090.md): Power Port · fire · May 9, 2024 · N504DZ · Airbus A321271NX · External Power System > AIRCRAFT 5004, AFTER ARRIVAL AT GATE WITH JETWAY ATTACHED. EXTERNAL CORD HOOKED UP TO PANEL, AND A FIRE STARTED AT CORD/PANEL AREA. DEPLANING WAS IN PROCESS; THE CABIN BEGAN TO FILL WITH SMOKE TO THE POINT THAT EVACUATION VIA THE OVERWING SLIDES AND THE L2 AND - [SDR DALA2024040604137](https://openairdocs.org/sdr/DALA2024040604137.md): Oil System · overserviced · Apr 5, 2024 · N504DZ · Airbus A321271NX · Turbine Engine Oil System > AIRCRAFT 5004, FA'S REPORTED DIRTY FEET/SOCK ODOR ON FINAL APPROACH. PILOTS DIDN'T SMELL ANYTHING UNTIL PARKING AT GATE W/APU ON FOR 3 MINUTES BEFORE TURNING APU BLEED ON. SMELL SEEMED TO HAVE DISSAPATED AFTER A FEW MINUTES AND COMPLETELY DISSAPATED AFTER APU - [SDR DALA2023072105889](https://openairdocs.org/sdr/DALA2023072105889.md): Unknown · unknown · Jul 21, 2023 · N504DZ · Airbus A320* · Service Doors > SHIP 5004 1R DOOR WONT ARM. CORRECTIVE ACTION: CLEAN DEBRIS FROM DOOR TRACK PER A321NEO AMM 52-12. OK FOR SERVICE. (4662026) - [SDR DALA2022111407318](https://openairdocs.org/sdr/DALA2022111407318.md): Warning Light · illuminated · Nov 12, 2022 · N504DZ · Airbus A321271N · Door Warning System > SHIP 5004 AVIONICS DOOR ILLUMINATED ON TAKEOFF CAUSING AN ABORTED TAKEOFF. CORRECTIVE ACTION: PLACED ON MEL 52-70-01N. OK FOR CONTINUED SERVICE. (9379598) - [SDR DALA2022080205281](https://openairdocs.org/sdr/DALA2022080205281.md): None · none · Aug 2, 2022 · N504DZ · Airbus A300* · Fuselage Main, Frame > SHIP 5004 WHILE INSTALLING POWER SUPPLY BRACKET, STRINGER 3 LH FLANGE BETWEEN FR58-FR59 INCURRED TOOLING DAMAGE. CORRECTIVE DAMAGE: COMPLIED WITH PRI 601145-14 REV. 0, PRI 601145-14 REV. 1, PRI 601145-14 REV. 2, PRI 601145-14 REV. 3, AND FINAL ER/A 601145-14 R - [SDR DALA2023012000434](https://openairdocs.org/sdr/DALA2023012000434.md): Stringer · damaged · Aug 1, 2022 · N504DZ · Airbus A321271N · Fuselage Main, Longeron/Stringer > SHIP 5004 TOOLING DAMAGE OCCURRED ON STR 3LH BETWEEN FR 58-5. CORRECTIVE ACTION: COMPLIED WITH ERA 601145-14 SECTION I. (2346230) ## 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 = 'N504DZ' AND registry_match = 'registration' ORDER BY difficulty_date DESC ``` This list as a web page: https://openairdocs.org/aircraft/N504DZ/reports --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.