# Service difficulty reports: N14153 A list on [N14153](https://openairdocs.org/aircraft/N14153.md). Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model. Newest first. Page 1 of 3 · 134 reports - [SDR JJBA20260723015](https://openairdocs.org/sdr/JJBA20260723015.md): Light · inflt separation · Jul 22, 2026 · N14153 · Emb EMB145XR · Exterior Lighting > NOSE TAXI LIGHT SEPERATED FROM AIRCRAFT IN FLIGHT. INSPECTED. NO DAMAGE ON NLG. INSTALLED NOSE UPPER TAXI LIGHT ASSEMBLY. OPS CHECK SAT - [SDR JJBA20250911016](https://openairdocs.org/sdr/JJBA20250911016.md): Gusset · corroded · Sep 5, 2025 · N14153 · Emb EMB145XR · Fuselage Miscellaneous Structure > CENTER OMEGA BEAM GUSSET FROM FRAME 22 TO FRAME 27 IS CORRODED. CENTER OMEGA BEAM GUSSET AT FRAME 22 - FRAME 27 FOUND TO BE OUT OF LIMITS. REMOVED AND REPLACED CENTER OMEGA BEAM GUSSET. - [SDR JJBA20250911015](https://openairdocs.org/sdr/JJBA20250911015.md): Gusset · corroded · Sep 5, 2025 · N14153 · Emb EMB145XR · Fuselage Miscellaneous Structure > CORROSION ON GUSSET AT FRAME 16 RBL 4. REMOVED CORROSION ON GUSSET AT FRAME 16 RBL 4 GUSSET FOUND TO BE OUT OF LIMITS. REMOVED AND REPLACED GUSSET FROM FRAME 16 RBL 4. - [SDR JJBA20250911014](https://openairdocs.org/sdr/JJBA20250911014.md): Gusset · corroded · Sep 5, 2025 · N14153 · Emb EMB145XR · Fuselage Miscellaneous Structure > GUSSET AT FRM 20 RBL 19 IS CORRODED. REMOVED CORROSION FROM FRAME 20 RBL 19, FOUND TO BE OUT OF LIMITS. REMOVED AND REPLACED GUSSET. - [SDR JJBA20250911017](https://openairdocs.org/sdr/JJBA20250911017.md): Floor Support · corroded · Sep 4, 2025 · N14153 · Emb EMB145XR · Fuselage Miscellaneous Structure > RH #1 OB FLOORSILL IS CORRODED. REMOVED AND INSTALLED NEW RH #1 OB FLOORSILL. - [SDR JJBA20250911011](https://openairdocs.org/sdr/JJBA20250911011.md): Rib · cracked · Sep 2, 2025 · N14153 · Emb EMB145XR · Fuselage Main, Structure > LH AFT MLG WHEEL WELL RIB CRACKED AT UPPER OUTBD CORNER. REMOVED AND REPLACED LH AFT MLG WHEEL WELL RIB. - [SDR JJBA20250911019](https://openairdocs.org/sdr/JJBA20250911019.md): Gusset · corroded · Aug 29, 2025 · N14153 · Emb EMB145XR · Fuselage Miscellaneous Structure > UNDER LAV ALL 3 GUSSETS ARE CORRODED. REMOVED TWO CORRODED GUSSETS UNDER LAV AND INSTALLED NEW GUSSETS. - [SDR JJBA20250911018](https://openairdocs.org/sdr/JJBA20250911018.md): Gusset · corroded · Aug 29, 2025 · N14153 · Emb EMB145XR · Fuselage Miscellaneous Structure > LH IB AND OB GUSSETS UNDER LAV SINK ARE CORRODED. REMOVED LH IB AND OB GUSSETS UNDER LAV SINK AND INSTALLED NEW GUSSETS. - [SDR JJBA20250911012](https://openairdocs.org/sdr/JJBA20250911012.md): Floor Support · corroded · Aug 28, 2025 · N14153 · Emb EMB145XR · Fuselage Miscellaneous Structure > FLOORSILL IN CARGO MOST FWD SILL IS CORRODED. REMOVED MOST FORWARD FLOORSILL IN CARGO BAY ON LEFT SIDE AND INSTALLED NEW FLOORSILL. - [SDR JJBA20250911013](https://openairdocs.org/sdr/JJBA20250911013.md): Floor Support · corroded · Aug 27, 2025 · N14153 · Emb EMB145XR · Fuselage Miscellaneous Structure > RH FLOORSILL MOST FWD IN CARGO IS CORRODED. REMOVED RH MOST FORWARD FLOORSILL IN CARGO BAY AND INSTALLED NEW SILL AND PROFILE. - [SDR JJBA20250424066](https://openairdocs.org/sdr/JJBA20250424066.md): Engine · shutdown · Apr 22, 2025 · N14153 · Emb EMB145XR · Engine (Turbine/Turboprop) > E-1 AUTO SHUTDOWN ON FINAL. REMOVED AND REPLACED LH ENGINE. OPS AND LEAK CHECK SAT. - [SDR JJBA20241003001](https://openairdocs.org/sdr/JJBA20241003001.md): Light · inoperative · Oct 1, 2024 · N14153 · Emb EMB145XR · Emergency Lighting > SEVERAL PHOTO-LUMINESCENT STRIPS NOT ILLUMINATING IN AFT CABIN. PERFORMED OPERATIONAL CHECK OF EMERGENCY LIGHTING AND PHOTO-LUMINESCENT STRIPS. OPS CHECK GOOD. - [SDR JJBA20240320069](https://openairdocs.org/sdr/JJBA20240320069.md): Pump · inoperative · Mar 18, 2024 · N14153 · Emb EMB145XR · Hydraulic Pump (Electric/Engine), Main > HYD 1 FAIL IN FLIGHT. REMOVED AND REPLACED #1 EDP AND REMOVED AND REPLACED 3 HYD FILTER ELEMENTS ON #1 HYD SYSTEM. PERFORMED HIGH ENGINE POWER RUNS. OPS AND LEAK CHECK SAT. NO DEFECTS NOTED. EXAMINED #1 HYD PRESSURE AND CASE DRAIN FILTERS WITH NO CONTAMINATION - [SDR JJBA20231221025](https://openairdocs.org/sdr/JJBA20231221025.md): Lamp · inoperative · Dec 21, 2023 · N14153 · Emb EMB145XR · Emergency Lighting > LH OVERWING EMERGENCY LIGHT INOPERATIVE. REMOVED AND REPLACED BULB. OPS CHECK GOOD. - [SDR JJBA20230830028](https://openairdocs.org/sdr/JJBA20230830028.md): Pump · inoperative · Aug 29, 2023 · N14153 · Emb EMB145XR · Hydraulic Pump (Electric/Engine), Main > HYD 1 LOW QUANTITY EICAS MESSAGE AFTER LANDING GEAR DEPLOYMENT. FLUID QTY READING IN YELLOW. REMOVED AND REPLACED RH MLG MANEUVERING ACTUATOR HOSES AND LH EDP. BLED AND SERVICED HYDRAULIC SYSTEM 1. OPS CHECK SAT. PERFORMED MULTIPLE LANDING GEAR SWINGS. OPS CHE - [SDR JJBA20230530018](https://openairdocs.org/sdr/JJBA20230530018.md): Fuse · inoperative · May 26, 2023 · N14153 · Emb EMB145XR · Emergency Lighting > LH EXTERNAL EMERGENCY FWD LIGHT INOPERATIVE. REPLACED LAMP OF LH FWD EMERGENCY LIGHT. NO FIX. EXTERNAL LIGHT HOUSING SUSPECT INOPERATIVE DUE TO CHAFFED WIRES. REMOVED AND REPLACED LH FWD EMERGENCY LIGHT ASSEMBLY. CHECKED CONTINUITY TO PINS FOR CANNON PLUG TO E - [SDR JJBA20230404001](https://openairdocs.org/sdr/JJBA20230404001.md): Unknown · unknown · Apr 1, 2023 · N14153 · Emb EMB145XR · Emergency Lighting > ALL EMERGENCY LIGHTS TURN ON THEN IMMEDIATELY OFF. REMOVED AND REPLACED FOUR EMERGENCY LIGHT BATTERIES. OPS CHECK SAT. - [SDR JJBA20220822022](https://openairdocs.org/sdr/JJBA20220822022.md): Dau · unknown · Aug 20, 2022 · N14153 · Emb EMB145XR · Indicating/Recording System > SUPPLEMENTAL: FUEL QTY DISAGREE EICAS MSG. AT CRUISE FL290 RECEIVED FUEL CONFIG DISAGREE FOLLOWED BY ENGINE #1 LOST INDICATION OF GEN 1 AND 3, ENGINE FUEL FLOW, ENGINE TEMPS, ENGINE OIL PRESSURE, AND ALL 3 GEAR INDICATIONS. CREW REPORTED THEY RAN QRH FOR FUE - [SDR JJBA20220413021](https://openairdocs.org/sdr/JJBA20220413021.md): None · inoperative · Apr 13, 2022 · N14153 · Emb EMB145XR · Lighting System > PSU ATTENDANT CALL LIGHT AT SEAT ROW 18A NOT ILLUMINATED. PSU PRINTED CIRCUIT BOARD REPLACED - [SDR JJBA20210404018](https://openairdocs.org/sdr/JJBA20210404018.md): None · none · Apr 4, 2022 · N14153 · Emb EMB145XR · Fuselage Structure (General) > AT CF IV AREA, CRACKS FOUND ON LH FRAME 59 BTW STR 15L-17L. LH SPLICE FR59 BTW STR 15L-17L REMOVED. AT CFIV AREA ON LH FRAME 59 BTW STR 15L-17L INSTALLED REPAIR SPLICE. DURING INSPECTION, FRAME REPAIR AND SPLICE FOUND TO BE FABRICATED WITH WRONG THICKNESS - [SDR JJBA20220404017](https://openairdocs.org/sdr/JJBA20220404017.md): None · none · Apr 4, 2022 · N14153 · Emb EMB145XR · Fuselage Structure (General) > AT REAR FUSE AREA, CORROSION FOUND ON FWD L-SHAPE CARGO DOOR SURROUND STRUCTURE AT FR65 AND BTW STR 16L-17L. AT REAR FUSE, AT FR65 BTW STR 16L-17L L-SHAPE IS OUT OF LIMITS. REPLACED WITH NEW PART SECTION AT REAR FUSE AREA ON FWD L-SHAPE CARGO DOOR SURROUND STR - [SDR JJBA20220404016](https://openairdocs.org/sdr/JJBA20220404016.md): None · none · Apr 4, 2022 · N14153 · Emb EMB145XR · Fuselage Structure (General) > CF1 REPAIR ON RH FLOOR BEAM AT FR 23 FOUND CORRODED. CF1 REPAIR ON RH FLOOR BEAM AT FR23 BLENDED OUT OF LIMITS. REMOVED CF1 REPAIR ON RH FLOOR BEAM AT FR23 FOR REPLACEMENT. FABRICATED REPAIR DOUBLER FOR RH FLOOR BEAM AT FR23. INSTALLED NEW FABRICATED REPAIR DO - [SDR JJBA20210614020](https://openairdocs.org/sdr/JJBA20210614020.md): Smoke Detector · damaged · Jun 14, 2021 · N14153 · Emb EMB145XR · Smoke Detection > LAV SMOKE EICAS MESSAGE IN FLIGHT. FOUND LAV SMOKE DETECTOR CONTROL PANEL TO BE SMELLING BURNT. R&R LAV SMOKE DETECTOR CONTROL PANEL. OPS CHECK GOOD. (PN TRA72-20) - [SDR RAIA2019111510003](https://openairdocs.org/sdr/RAIA2019111510003.md): Skin · corroded · Nov 11, 2019 · N14153 · Emb EMB145XR · Fuselage Main, Plate/Skin > MAIN CABIN BELLY SKIN HAS CORROSION BETWEEN STR 21LH & 21RH BETWEEN FRAME 38 & 39- REMOVED CORROSION FROM BELLY OF FUSELAGE INTERNAL SKIN BETWEEN FR38-39, STR21L-21R, FABRICATED DOUBLER & BEGAN INSTALLATION. COMPLETED REPAIR ON MAIN BELLY SKIN AT FR 3 - [SDR RAIA2019112100003](https://openairdocs.org/sdr/RAIA2019112100003.md): Support · cracked · Nov 10, 2019 · N14153 · Emb EMB145XR · Wing, Landing Gear Attach Fittings > RH WING L/E I/B HORSE SHOE NUTPLATE SUPPORT RING IS CRACKED IN BEND RADIUS- REMOVED & REPLACED RH WING I/B L/E HORSE SHOE, INSTALLED NEW NUTPLATES. - [SDR RAIA2019111300002](https://openairdocs.org/sdr/RAIA2019111300002.md): Support · corroded · Nov 10, 2019 · N14153 · Emb EMB145XR · Fuselage Miscellaneous Structure > AFT CARGO R/H SIDEWALL CARBON RING SUPPORT ABOVE R/H FLOOR SILL HAS CORROSION AT FR 61....R&R AFT CARGO R/H SIDEWALL SUPPORT FOR CARBON RING AT FR 61. - [SDR RAIA2019111300001](https://openairdocs.org/sdr/RAIA2019111300001.md): Support · corroded · Nov 10, 2019 · N14153 · Emb EMB145XR · Fuselage Miscellaneous Structure > AFT LAV L/H SIDEWALL CARBON RING SUPPORT HAS CORROSION AT FR 61....R&R AFT LAV L/H SIDEWALL CARBON RING SUPPORT. - [SDR RAIA2019111480002](https://openairdocs.org/sdr/RAIA2019111480002.md): Floor Support · corroded · Nov 8, 2019 · N14153 · Emb EMB145XR · Fuselage Miscellaneous Structure > MAIN CABIN RH FLOOR SILL HAS CORROSION ON UPPER SURFACE AT FRAME 30- REMOVED RH FLOOR SILL AT FRAME 30. INSTALLED RH FLOOR SILL AT FRAME 30. - [SDR RAIA2019111380001](https://openairdocs.org/sdr/RAIA2019111380001.md): Floor Support · corroded · Nov 8, 2019 · N14153 · Emb EMB145XR · Fuselage Internal Mounting Structure > MAIN CABIN R/H FLOOR SILL HAS CORROSION ON UPPER SURFACE AT FR 29....R&R R/H FLOOR SILL AT FR 29. - [SDR RAIA201911165002](https://openairdocs.org/sdr/RAIA201911165002.md): Support Angle · cracked · Nov 5, 2019 · N14153 · Emb EMB145XR · Fuselage Main, Attach Fittings > RH I/B FIN UPPER RH ANGLE SUPPORT BRACKET IS CRACKED- REMOVED CRACKED ANGLE SUPPORT LOCATED & DRILLED UP NEW ANGLE SUPPORT BRACKET. INSTALLED NEW ANGLE SUPPORT BRACKET. - [SDR RAIA2019110950001](https://openairdocs.org/sdr/RAIA2019110950001.md): Support · corroded · Nov 5, 2019 · N14153 · Emb EMB145XR · Fuselage Miscellaneous Structure > MAIN CABIN RH STEP UP SUPPORT AND CORNER SUPPORT AT FRAME 23 HAS CORROSION- R&R RH STEP UP SUPPORT AND CORNER SUPPORT AT FR 23. - [SDR RAIA2019111410001](https://openairdocs.org/sdr/RAIA2019111410001.md): Floor Support · corroded · Nov 1, 2019 · N14153 · Emb EMB145XR · Fuselage Miscellaneous Structure > MAIN CABIN CENTER OMEGA BEAM UPPER SUPPORT HAS CORROSION ON UPPER SURFACE BETWEEN FRAME 36 & 37- R&R MAIN CABIN CENTER OMEGA BEAM UPPER SUPPORT AT FR36 & 37. - [SDR RAIA2019112830046](https://openairdocs.org/sdr/RAIA2019112830046.md): Skin · gouged · Oct 30, 2019 · N14153 · Emb EMB145XR · Fuselage Main, Plate/Skin > #1 ENGINE PYLON INSIDE ACCESS PANEL 414DB FUSELAGE SKIN IS GOUGED BETWEEN FRAME 67 & 68- REMOVED #1 PYLON BLEED VALVE TO F.O.M. CUT OUT DAMAGED AREA, FABRICATED DOUBLER, DRILLED-UP, ALODINE & PRIMED NEW DOUBLER. FABRICATED FILLER, LOCATED, DRILLED, IN - [SDR RAIA2019112030045](https://openairdocs.org/sdr/RAIA2019112030045.md): Angle · cracked · Oct 30, 2019 · N14153 · Emb EMB145XR · Wing Miscellaneous Structure > RH W/W FWD O/B CORNER BELLY FAIRING LOWER NUTPLATE L ANGLE SUPPORT IS CRACKED- REMOVED DAMAGED L ANGLE FABRICATED NEW L CHANNEL & DOUBLER. INSTALLED NEW L CHANNEL & DOUBLER. - [SDR RAIA2019111430041](https://openairdocs.org/sdr/RAIA2019111430041.md): Floor Support · corroded · Oct 30, 2019 · N14153 · Emb EMB145XR · Fuselage Miscellaneous Structure > MAIN CABIN LH FLOOR SILL LOWER SPLICE ANGLE IS CRACKED BETWEEN FRAME 23 & 24 LH- R&R SLICE ANGLE ON LH FLOOR SILL BETWEEN FR23 & 24. - [SDR RAIA2019111430040](https://openairdocs.org/sdr/RAIA2019111430040.md): Floor Support · corroded · Oct 30, 2019 · N14153 · Emb EMB145XR · Fuselage Miscellaneous Structure > MAIN CABIN LH FLOOR SILL HAS CORROSION ON UPPER SURFACE AT FRAME 26 LH- REMOVED LH FLOOR SILL AT FRAME 26 LH. INSTALLED LH FLOOR SILL AT FRAME 26 LH. - [SDR RAIA2019111300038](https://openairdocs.org/sdr/RAIA2019111300038.md): Floor Support · corroded · Oct 30, 2019 · N14153 · Emb EMB145XR · Fuselage Internal Mounting Structure > MAIN CABIN L/H OMEGA BEAM UPPER SURFACE HAS LIGHT CORROSION AT FR 28 & 31....R&R L/H OMEGA BEAM GUSSET AT FR 28 TO 31. - [SDR RAIA201911130035](https://openairdocs.org/sdr/RAIA201911130035.md): Floor Support · corroded · Oct 30, 2019 · N14153 · Emb EMB145XR · Fuselage Miscellaneous Structure > AFT LAV L/H FLOOR SILL HAVE CORROSION AROUND NUTPLATE HOLE AT FR 61....R&R AFT LAV L/H FLOOR SILL AT FR 61. - [SDR RAIA20191113034](https://openairdocs.org/sdr/RAIA20191113034.md): Shear Tie · cracked · Oct 30, 2019 · N14153 · Emb EMB145XR · Fuselage Internal Mounting Structure > MAIN CABIN FR 15 R/H SHEER CLIP IS CRACKED AT STR 15 R/H....R&R MAIN CABIN FR 15 R/H SHEER CLIP AT STR 15 R/H. - [SDR RAIA201911133033](https://openairdocs.org/sdr/RAIA201911133033.md): Floor Support · corroded · Oct 30, 2019 · N14153 · Emb EMB145XR · Fuselage Miscellaneous Structure > AFT LAV R/H FLOOR SILL HAS CORROSION AROUND FASTNER HOLE AT FR 61....R&R AFT LAV R/H FLOOR SILL AT FR 61. - [SDR RAIA201911090023](https://openairdocs.org/sdr/RAIA201911090023.md): Angle · cracked · Oct 30, 2019 · N14153 · Emb EMB145XR · Fuselage Miscellaneous Structure > AFT CARGO LOWER THRESHOLD 'T' PROFILE UPPER ANGLE BRACKET IS CRACKED AT FRAME 67- REMOVE & REPLACED 'T' PROFILE ANGLE. - [SDR RAIA201911090022](https://openairdocs.org/sdr/RAIA201911090022.md): Angle · cracked · Oct 30, 2019 · N14153 · Emb EMB145XR · Fuselage Miscellaneous Structure > RH W/W REAR WEB LOWER ANGLE IS CRACKED AT O/B END- R&R RH W/W WEB LOWER ANGLE. - [SDR RAIA2019110930021](https://openairdocs.org/sdr/RAIA2019110930021.md): Floor Support · corroded · Oct 30, 2019 · N14153 · Emb EMB145XR · Fuselage Miscellaneous Structure > CENTER OMEGA BEAM UPPER DIGITAL SUPPORT HAS CORROSION ON UPPER SURFACE AT FRAME 18- REMOVED THE UPPER DIGITAL SUPPORT AT FR18. BEGAN INSTALLING AFT UPPER DIGITAL SUPPORT AT FR 18 AT CENTER OMEGA BEAM. FINISHED INSTALLING AFT UPPER DIGITAL SUPPORT AT F - [SDR RAIA2019110930020](https://openairdocs.org/sdr/RAIA2019110930020.md): Floor Support · corroded · Oct 30, 2019 · N14153 · Emb EMB145XR · Fuselage Miscellaneous Structure > MAIN CABIN RH FLOOR SILL HAS CORROSION AROUND NUTPLATE HOLE FWD OF SERVICE DOOR- R&R RH FLOOR SILL FWD OF SERVICE DOOR. - [SDR RAIA2019110930019](https://openairdocs.org/sdr/RAIA2019110930019.md): Floor Support · corroded · Oct 30, 2019 · N14153 · Emb EMB145XR · Fuselage Miscellaneous Structure > MAIN CABIN LH FLOOR SILL HAS CORROSION ON UPPER SURFACE BETWEEN FRAME 19 & 20- R/R LH FLOOR SILL FROM FR18-FR22. - [SDR RAIA2019110930018](https://openairdocs.org/sdr/RAIA2019110930018.md): Threshold · cracked · Oct 30, 2019 · N14153 · Emb EMB145XR · Fuselage Miscellaneous Structure > FWD PASSENGER DOOR CUT OUT AT LOWER THRESHOLD FRAME 15 LOWER UPPER DIGITAL SUPPORT END FITTING IS CRACKED AT STR 15 LH- R/R THE FR15 LOWER TO UPPER DIGITAL SUPPORT END FITTING AT STR 15L. - [SDR RAIA2019110930017](https://openairdocs.org/sdr/RAIA2019110930017.md): Shear Tie · cracked · Oct 30, 2019 · N14153 · Emb EMB145XR · Fuselage Internal Mounting Structure > MAIN CABIN FRAME 25 SHEAR CLIP IS CRACKED AT STR 15 RH- R&R SHEAR CLIP AT FR 25, STR 15 RH. - [SDR RAIA2019110930016](https://openairdocs.org/sdr/RAIA2019110930016.md): Shear Tie · cracked · Oct 30, 2019 · N14153 · Emb EMB145XR · Fuselage Internal Mounting Structure > MAIN CABIN FRAME 24 SHEAR CLIP IS CRACKED AT STR 15 RH- R&R SHEAR CLIP AT FR 24 STR 15 RH. - [SDR RAIA2019110830015](https://openairdocs.org/sdr/RAIA2019110830015.md): Floor Support · corroded · Oct 30, 2019 · N14153 · Emb EMB145XR · Fuselage Miscellaneous Structure > MAIN CABIN RH FLOOR SILL HAS CORROSION AT FRAME 48 & 49- REMOVED RH FLOOR SILL AT FRAME 48-49. PICKED UP NEW HOLES AND STARTED INSTALLING NEW FLOOR SILL AT FRAME 48-49. FINISHED INSTALLATION OF RH FLOOR SILL AT FRAME 48-49. - [SDR RAIA2019110830014](https://openairdocs.org/sdr/RAIA2019110830014.md): Angle · cracked · Oct 30, 2019 · N14153 · Emb EMB145XR · Fuselage Miscellaneous Structure > MAIN CABIN CENTER OMEGA BEAM O/B LOWER SPLICE ANGLE IS CRACKED BETWEEN FRAME 16 & 17- R/R CENTER OMEGA BEAM O/B LOWER SPLICE ANGLE BETWEEN FR16-FR17. Next page: https://openairdocs.org/aircraft/N14153/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 n_number = 'N14153' AND registry_match = 'registration' ORDER BY difficulty_date DESC ``` This list as a web page: https://openairdocs.org/aircraft/N14153/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.