# N623UX: 2019 Embraer S A ERJ 170-200 LL

- Status: Valid registration
- Airframe: [Embraer S A ERJ 170-200 LL](https://openairdocs.org/model/embraer-s-a-erj-170-200-ll) (registry code 326041A, 88 seats)
- Engine: [GE CF34-8E5](https://openairdocs.org/engine/ge-cf34-8e5) (registry code 30061)
- Data sheets: [TCDS A56NM](https://openairdocs.org/tcds/A56NM) (Embraer S.A.), [TCDS E00063EN](https://openairdocs.org/tcds/E00063EN) (General Electric Company GE Aerospace) (OpenAirDocs)
- Serial number: 17000830
- Year built: 2019
- Type: Fixed wing multi engine
- Engine type: Turbo-fan
- Airworthiness: Standard, transport
- Airworthiness date: December 5, 2019
- Certificate issued: December 5, 2019
- Expires: December 31, 2029
- Mode S code: A8233A
- Registered owner: [United Airlines Inc](https://openairdocs.org/faa-owner/UNITED%20AIRLINES%20INC)
- Location: [Chicago, IL](https://openairdocs.org/faa-place/IL/Chicago)
- Owner type: Corporation
- Owner's area on the map: 41.8813° N, 87.6375° W: Placed by OpenAirDocs at the center of ZIP code 60606, within about a mile (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=623UX
- Page: https://openairdocs.org/aircraft/N623UX

From the FAA registry file of October 24, 2026. ADs below are matched by the registry's airframe and engine model codes. They may apply; each AD's applicability can narrow it by serial number, part number or installed equipment. This is not a compliance determination.

## ADs that may apply (OpenAirDocs): 30 in force

### Matched by airframe (Embraer S A ERJ 170-200 LL)

- [AD 2026-13-02](https://openairdocs.org/ad/2026-13-02): Navigation · Airbus Canada Limited Partnership 18, 49-46, 80-A and 555 more. Effective Jul 1, 2026
- [AD 2025-14-05](https://openairdocs.org/ad/2025-14-05): Nacelles/Pylons · Embraer ERJ 170-100 LR, ERJ 170-100 STD, ERJ 170-100 SE and 12 more. Effective Aug 25, 2025
- [AD 2025-01-05](https://openairdocs.org/ad/2025-01-05): Time Limits/Maintenance Checks · Embraer ERJ 170-100 LR, ERJ 170-100 SE, ERJ 170-100 STD and 5 more. Effective Mar 17, 2025
- [AD 2024-14-08](https://openairdocs.org/ad/2024-14-08): Pneumatic System · Embraer ERJ 170-100 LR, ERJ 170-100 SE, ERJ 170-100 STD and 5 more. Effective Sep 25, 2024
- [AD 2024-12-08](https://openairdocs.org/ad/2024-12-08): Landing gear · Embraer ERJ 170-100 LR, ERJ 170-100 STD, ERJ 170-100 SE and 5 more. Effective Jul 11, 2024
- [AD 2023-13-02](https://openairdocs.org/ad/2023-13-02): Flight controls · Embraer ERJ 170-100 LR, ERJ 170-100 SE, ERJ 170-100 STD and 5 more. Effective Sep 5, 2023
- [AD 2023-10-02](https://openairdocs.org/ad/2023-10-02): Indicating/Recording System, Navigation · Boeing 18, 23, 35 and 1,060 more. Effective May 26, 2023
- [AD 2023-03-19](https://openairdocs.org/ad/2023-03-19): Instruments · Embraer ERJ 170-100 LR, ERJ 170-100 SE, ERJ 170-100 STD and 5 more. Effective Apr 7, 2023
- [AD 2022-16-01](https://openairdocs.org/ad/2022-16-01): Windows · Embraer ERJ 170-100 LR, ERJ 170-100 SE, ERJ 170-100 STD and 12 more. Effective Aug 15, 2022
- [AD 2022-11-51](https://openairdocs.org/ad/2022-11-51): Wing structure · Embraer ERJ 170-200 STD, ERJ 170-200 LR, ERJ 170-200 SU and 1 more. Effective Jun 21, 2022
- [AD 2020-25-08](https://openairdocs.org/ad/2020-25-08): Flight controls · Yaborã Indústria Aeronáutica ERJ 170-100 LR, ERJ 170-100 SE, ERJ 170-100 STD and 12 more. Effective Jan 21, 2021
- [AD 2020-07-21](https://openairdocs.org/ad/2020-07-21): Landing gear · Yaborã Indústria Aeronáutica ERJ 170-100 LR, ERJ 170-100 SE, ERJ 170-100 STD and 12 more. Effective May 26, 2020
- [AD 2020-05-22](https://openairdocs.org/ad/2020-05-22): Indicating/recording systems · Yaborã Indústria Aeronáutica ERJ 170-100 LR, ERJ 170-100 SE, ERJ 170-100 STD and 5 more. Effective Apr 24, 2020
- [AD 2019-19-03](https://openairdocs.org/ad/2019-19-03): Fuselage · Embraer ERJ 170-100 LR, ERJ 170-100 SE, ERJ 170-100 STD and 12 more. Effective Oct 31, 2019

### Matched by engine (GE CF34-8E5)

- [AD 2026-21-11](https://openairdocs.org/ad/2026-21-11): Turbine Engine Compressor Section · General Electric Company GE Aerospace CF34-8C1, CF34-8C5, CF34-8C5A1 and 10 more. Effective Nov 27, 2026
- [AD 2025-12-08](https://openairdocs.org/ad/2025-12-08): Turbine Engine Combustion Section · General Electric CF34-8C1, CF34-8C5, CF34-8C5A1 and 10 more. Effective Jul 23, 2025
- [AD 2023-02-05](https://openairdocs.org/ad/2023-02-05): Turbine Engine Combustion Section · General Electric CF34-8C1, CF34-8C5, CF34-8C5A1 and 9 more. Effective Mar 14, 2023
- [AD 2022-21-06](https://openairdocs.org/ad/2022-21-06): Turbine Section · General Electric CF34-8C1, CF34-8C5, CF34-8C5A1 and 10 more. Effective Nov 15, 2022
- [AD 2022-09-14](https://openairdocs.org/ad/2022-09-14): Compressor Bleed Valve · General Electric CF34-8C1, CF34-8C5, CF34-8C5A1 and 10 more. Effective Jun 24, 2022
- [AD 2022-08-06](https://openairdocs.org/ad/2022-08-06): Turbine Engine Compression Section · General Electric CF34-8C1, CF34-8C5, CF34-8C5A1 and 10 more. Effective Apr 29, 2022
- [AD 2021-26-19](https://openairdocs.org/ad/2021-26-19): Turbine Section · General Electric CF34-8C5, CF34-8C5B1, CF34-8E2 and 6 more. Effective Jan 25, 2022
- [AD 2021-23-51](https://openairdocs.org/ad/2021-23-51): Turbine Engine Compression Section · General Electric CF34-8C1, CF34-8C5, CF34-8C5A1 and 10 more. Effective Dec 29, 2021
- [AD 2021-18-13](https://openairdocs.org/ad/2021-18-13): Turbine Engine Combustion Section · General Electric CF34-8C1, CF34-8C5, CF34-8C5A1 and 10 more. Effective Oct 22, 2021
- [AD 2018-17-14](https://openairdocs.org/ad/2018-17-14): Thrust Reverser · General Electric CF34-8E2, CF34-8E2A1, CF34-8E5 and 4 more. Effective Nov 7, 2018
- [AD 2017-20-09](https://openairdocs.org/ad/2017-20-09): Turbine Engine Bypass Section · General Electric CF34-8E2, CF34-8E2A1, CF34-8E5 and 4 more. Effective Nov 13, 2017
- [AD 2017-17-18](https://openairdocs.org/ad/2017-17-18): Turbine Engine Compressor Section · General Electric CF34-8C1, CF34-8C5, CF34-8C5A1 and 10 more. Effective Oct 6, 2017
- [AD 2013-06-06](https://openairdocs.org/ad/2013-06-06): Operability bleed valves (OBV) · General Electric CF34-8C1, CF34-8C5, CF34-8C5A1 and 10 more. Effective May 8, 2013
- [AD 2009-24-06](https://openairdocs.org/ad/2009-24-06): Full authority digital electronic controls · General Electric CF34-8E2, CF34-8E2A1, CF34-8E5 and 4 more. Effective Dec 28, 2009
- [AD 2008-05-01](https://openairdocs.org/ad/2008-05-01): Fuel metering units (FMU) · General Electric CF34-10E2A1, CF34-10E5, CF34-10E5A1 and 8 more. Effective Apr 3, 2008
- [AD 2005-07-09](https://openairdocs.org/ad/2005-07-09): Master variable geometry (VG) actuators · General Electric CF34-8E2, CF34-8E2A1, CF34-8E5 and 4 more. Effective Apr 20, 2005

### Historical (superseded or no longer in force)

- [AD 2022-25-07](https://openairdocs.org/ad/2022-25-07) (historical): Time Limits/Maintenance Checks, Flight controls, Fuel, Doors, Fuselage, Nacelles/pylons, Stabilizers, Wings, Powerplant, Exhaust · Embraer ERJ 170-100 LR, ERJ 170-100 SE, ERJ 170-100 STD and 5 more. Effective Jan 23, 2023
- [AD 2020-12-12](https://openairdocs.org/ad/2020-12-12) (historical): Nacelles/pylons · Yaborã Indústria Aeronáutica ERJ 170-100 LR, ERJ 170-100 SE, ERJ 170-100 STD and 12 more. Effective Aug 13, 2020
- [AD 2019-25-16](https://openairdocs.org/ad/2019-25-16) (historical): Flight controls · Embraer ERJ 170-100 LR, ERJ 170-100 SE, ERJ 170-100 STD and 5 more. Effective Feb 10, 2020
- [AD 2008-16-01](https://openairdocs.org/ad/2008-16-01) (historical): Full authority digital engine controls (FADECs) · General Electric CF34-8E2, CF34-8E2A1, CF34-8E5 and 4 more. Effective Aug 15, 2008
- [AD 2004-04-04](https://openairdocs.org/ad/2004-04-04) (historical): Master Variable geometry (VG) actuators · General Electric CF34-8E2, CF34-8E2A1, CF34-8E5 and 4 more. Effective Mar 9, 2004

## Information bulletins (advisory) (1 in force)

- [SAIB NM-20-12](https://openairdocs.org/saib/NM-20-12): Powerplant System - Operating in Icing Conditions. Issued Jun 18, 2020

## NTSB investigations

None matched to N623UX.

## FAA accident and incident reports

None matched to N623UX.

## Service difficulty reports (11)

As reported by operators and repair stations. Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model.

- [SDR SWI2025F01716](https://openairdocs.org/sdr/SWI2025F01716), Nov 15, 2025: FLAP TRACK. WORN. RIGHT WING FLAP TRACK 2A OTBD HAS WIDTH REDUCTION WEAR OF 1.16MM MAX ALONG ENTIRE LENGTH. REMOVED AND REPLACED RT WING FLAP TRACK 2A OTBD IAW AMM 57-54-25.
- [SDR SWI2025F01715](https://openairdocs.org/sdr/SWI2025F01715), Nov 15, 2025: FLAP TRACK. WORN. LEFT WING FLAP TRACK 1A HAS THICKNESS REDUCTION WEAR OF .98MM MAX ALONG FWD SIDE. REMOVED AND REPLACED THE LT WING FLAP TRACK 1A IAW AMM 57-54-25.
- [SDR SWI2025F01714](https://openairdocs.org/sdr/SWI2025F01714), Nov 15, 2025: SEAT TRACK. CORRODED. AFT WET AREA CORROSION AT AFT END OF LT INBD SEAT TRACK FRS 84 - 85. REPAIRED THE LT INBD SEAT TRACK BETWEEN FR 83-85 IAW SRM 53-00-10, REPAIR 01, AND ETD2022-1
- [SDR SWI2025F01713](https://openairdocs.org/sdr/SWI2025F01713), Nov 15, 2025: FLOOR SUPPORT. CORRODED. AFT WET AREA CORROSION ON LT FLOOR SUPPORT ON RIVETS AROUND FR 87. REMOVED AND REPLACED BETWEEN FR 86-89 IAW SRM 51-40-08. REPLACED WITH FACTORY PART.
- [SDR SWI2025F01712](https://openairdocs.org/sdr/SWI2025F01712), Nov 15, 2025: SEAT TRACK. CORRODED. AFT WET AREA CORROSION AT AFT END OF RT INBD SEAT TRACK, FRAME 84 - 85. PERFORMED REPAIR ON THE RT INBD SEAT TRACK IAW ETD2022-170-022163, REV C, & SRM 53-23-10
- [SDR SWIA2025120300115](https://openairdocs.org/sdr/SWIA2025120300115), Nov 15, 2025: FLOOR SUPPORT. CORRODED. AFT WET AREA CORROSION ON RT FLOOR SUPPORT AT FR 87. REMOVED AND REPLACED THE FLOOR SUPPORT FR 86-89 WITH NEW IAW SRM 51-40-08. REPLACED WITH OEM PART,
- [SDR SWIA2025120300114](https://openairdocs.org/sdr/SWIA2025120300114), Nov 14, 2025: SEAT TRACK. CORRODED. FORWARD CABIN FLOOR STRUCTURE TRACK, LT UPPER SURFACE HAS CORROSION BETWEEN FR 19 AND 20. REPAIRED FORWARD CABIN FLOOR STRUCTURE TRACK, LT UPPER SURFACE IAW ETD
- [SDR SWIA2025120300113](https://openairdocs.org/sdr/SWIA2025120300113), Nov 13, 2025: DOUBLER. CORRODED. WASTE SERVICE PANEL CUTOUT FLANGE HAS CORROSION ON FWD SIDE. REMOVED AND REPLACED WASTE SERVICE BOX DOUBLER IAW SRM 51-40-08. REPLACED WITH FACTORY PART.
- [SDR SWIA2025061200010](https://openairdocs.org/sdr/SWIA2025061200010), Jun 10, 2025: HYDRAULIC SYSTEM. WARNING MESSAGE. DIVERTED TO KPDX FOR A TOTAL LOSS OF SYSTEM 1 HYDRAULIC QUANTITY. €ŒHYD 1 LO QTY€? EICAS APPEARED. SYSTEM 1 PSI REMAINED AROUND 3,000 PSI WITH THE ASSSUMED HE
- [SDR SWIA202310200001](https://openairdocs.org/sdr/SWIA202310200001), Oct 19, 2023: UNKNOWN. DENTED. COMPLY WITH ETD 2023-170-026423 FOR THE PERMANENT REPAIR (PARA. B. 1.) OF THE DENT FOUND ON THE AFT EDGE (FR 27) OF THE FWD CARGO DOOR BETWEEN APROX STRG 21R AN
- [SDR SWIA202309100029](https://openairdocs.org/sdr/SWIA202309100029), Sep 29, 2023: UNKNOWN. SEPARATED. FWD SERVICE DOOR EMERGENCY EVACUATION SLIDE FLEX- BALL CABLE SLEEVE SEPERATED FROM UPPER FITTING AND INNER CABLE IS EXPOSED. (C-CHECK RO 10/6/2023) REPAIRED FWD

## STCs that may be installed (OpenAirDocs) (20)

Approved for this aircraft's airframe or engine model, in force first, then newest. The registry doesn't record which STCs an aircraft has; its records do.

### Approved for the airframe (Embraer S A ERJ 170-200 LL)

- [STC ST04801NY](https://openairdocs.org/stc/ST04801NY): Installation (including Demod option) of Connectivity Antenna. Delta Engineering Corporation
- [STC ST12461IB](https://openairdocs.org/stc/ST12461IB): Installation of Cockpit Voice Recorder with optional RIPS Upgrade. Mid- Canada Mod Center
- [STC ST04748NY](https://openairdocs.org/stc/ST04748NY): Installation of the SpaceX Starlink Aviation System. Space Exploration Technologies Corp. / Starlink Aviation
- [STC ST02722LA](https://openairdocs.org/stc/ST02722LA): Updates the aircraft recording system by replacing the forward Cockpit Voice and Data Recorder (CVDR) with a new SRVIVR25 CVDR with Recorder Independent Power Supply (RIPS). Acron Aviation Inc
- [STC ST04328NY](https://openairdocs.org/stc/ST04328NY): The Manufacture and Installation of Exterior Placards, Labels and Signs is to be performed, installed. Libellule Monde Inc
- [STC ST11372DS](https://openairdocs.org/stc/ST11372DS): De-modification of Air-To-Ground (A TG) antennas and associated cabin equipment i. Altitude Aerospace USA
- [STC ST03885AT](https://openairdocs.org/stc/ST03885AT): Installation of an Avionica, Inc. avCM Cellular Module. Aircraft Systems and Manufacturing Inc
- [STC ST12138CH](https://openairdocs.org/stc/ST12138CH): Installation of Universal Avionics KAPTURE Combined Cockpit Voice and Flight Data Recorders i. GoAeroMx, LLC
- [STC ST02402LA](https://openairdocs.org/stc/ST02402LA): Interior Installations and Modifications. Safran Cabin Inc
- [STC ST02534SE](https://openairdocs.org/stc/ST02534SE): Installation and maintenance of a Crane Aerospace & Electronics Tire Pressure Sensor Assembly. ELDEC Corporation
- [STC ST09900AC](https://openairdocs.org/stc/ST09900AC): installation of an Electronic Flight Bag (EFB) power system. L2 Aviation
- [STC ST02472AT](https://openairdocs.org/stc/ST02472AT): Installation of a mini Quick Access Recorder (QAR) model MKI, MKII, or MKIII. Aircraft Systems and Manufacturing Inc
- [STC ST04820NY](https://openairdocs.org/stc/ST04820NY): Installation (including Demod option) of Cabin Connectivity. Delta Engineering Corporation
- [STC ST01936WI](https://openairdocs.org/stc/ST01936WI): Installation of LED lights. AeroLED's Holdings LLC
- [STC ST04562NY](https://openairdocs.org/stc/ST04562NY): Installation of saf-Tglo® SuperSeal UltraLite-X (SSUL-X) Photoluminescent Floor Proximity Emergency Escape Path Marking Systems. STG AEROSPACE GERMANY GmbH
- [STC ST04535AT](https://openairdocs.org/stc/ST04535AT): Installation of the CES-170 Emergency Light Power Unit (ELPU). Chippewa Aerospace Inc
- [STC ST03422NY](https://openairdocs.org/stc/ST03422NY): Update of Intelsat components. Delta Engineering Corporation
- [STC ST00957DE](https://openairdocs.org/stc/ST00957DE): Installation of MarathonNorco Aerospace Inc Nickel Cadmium battery. MarathonNorco Aerospace Inc
- [STC ST04435AT](https://openairdocs.org/stc/ST04435AT): Installation of Astronics Passenger In-Seat Power in the Embraer ERJ-170-100, ERJ-170-200, ERJ-190-100 and ERJ-190-200 Series Aircraft. Chippewa Aerospace Inc
- [STC ST03406NY](https://openairdocs.org/stc/ST03406NY): Installation of a gogo Cabin Connectivity System. Delta Engineering Corporation

## Related

- Other Embraer S A ERJ 170-200 LL aircraft: https://openairdocs.org/model/embraer-s-a-erj-170-200-ll/aircraft.md
- The GE CF34-8E5 engine: https://openairdocs.org/engine/ge-cf34-8e5.md

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