# N401QS: 2026 Embraer Executive EMB-505

- Status: Valid registration
- Airframe: [Embraer Executive EMB-505](https://openairdocs.org/model/embraer-executive-emb-505) (registry code 3260390, 8 seats)
- Engine: [Pratt & Whitney Canada PW535E1](https://openairdocs.org/engine/pratt-whitney-canada-pw535e1) (registry code 52312)
- Data sheets: [TCDS A60CE](https://openairdocs.org/tcds/A60CE) (Embraer S.A.), [TCDS E00053EN](https://openairdocs.org/tcds/E00053EN) (Pratt & Whitney Canada Inc.) (OpenAirDocs)
- Serial number: 50500923
- Year built: 2026
- Type: Fixed wing multi engine
- Engine type: Turbo-fan
- Airworthiness: Standard, commuter
- Airworthiness date: February 11, 2026
- Certificate issued: March 13, 2026
- Expires: March 31, 2033
- Mode S code: A4B1C7
- Registered owners: [City Service Air Holdings LLC](https://openairdocs.org/faa-owner/CITY%20SERVICE%20AIR%20HOLDINGS%20LLC), [Doc T'S Transport LLC](https://openairdocs.org/faa-owner/DOC%20T'S%20TRANSPORT%20LLC), [Robison James Kirk](https://openairdocs.org/faa-owner/ROBISON%20JAMES%20KIRK), [Lippert Jason](https://openairdocs.org/faa-owner/LIPPERT%20JASON), [Jbird Aviation LLC](https://openairdocs.org/faa-owner/JBIRD%20AVIATION%20LLC), [Thierfelder Mark](https://openairdocs.org/faa-owner/THIERFELDER%20MARK)
- Location: [Oklahoma City, OK](https://openairdocs.org/faa-place/OK/Oklahoma%20City)
- Owner type: Co-owned, fractional ownership
- Owner's area on the map: 35.5467° N, 97.5646° W: Placed by OpenAirDocs at the center of ZIP code 73116, 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=401QS
- Page: https://openairdocs.org/aircraft/N401QS

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): 13 in force

### Matched by airframe (Embraer Executive EMB-505)

- [AD 2026-10-18](https://openairdocs.org/ad/2026-10-18): Flight Control System · Embraer EMB-505. Effective Jul 6, 2026
- [AD 2026-03-05](https://openairdocs.org/ad/2026-03-05): Autopilot Main Servo · Embraer EMB-505. Effective Mar 31, 2026
- [AD 2024-22-06](https://openairdocs.org/ad/2024-22-06): Cabin Equipment/Furnishings · Embraer EMB-505. Effective Jan 2, 2025
- [AD 2024-17-09](https://openairdocs.org/ad/2024-17-09): Cabin Equipment/Furnishings · Embraer EMB-505. Effective Nov 12, 2024
- [AD 2023-21-04](https://openairdocs.org/ad/2023-21-04): Indicating/recording system · Embraer EMB-505. Effective Dec 11, 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 2022-05-12](https://openairdocs.org/ad/2022-05-12): Elevator Structure, Rudder Structure, Ailerons · Embraer EMB-505. Effective Apr 13, 2022
- [AD 2021-24-21](https://openairdocs.org/ad/2021-24-21): Operations · Embraer EMB-500 and EMB-505. Effective Jan 25, 2022
- [AD 2018-07-10](https://openairdocs.org/ad/2018-07-10): Flight Controls · Embraer EMB-500 and EMB-505. Effective May 15, 2018
- [AD 2016-22-02](https://openairdocs.org/ad/2016-22-02): Equipment/Furnishing · Embraer EMB-500 and EMB-505. Effective Dec 1, 2016
- [AD 2014-19-01](https://openairdocs.org/ad/2014-19-01): Landing Gear · Embraer EMB-505. Effective Oct 22, 2014
- [AD 2012-13-04](https://openairdocs.org/ad/2012-13-04): Flight Controls · Embraer - Empresa Brasileira de Aeronautica EMB-505. Effective Aug 6, 2012

### Matched by engine (Pratt & Whitney Canada PW535E1)

- [AD 2025-05-13](https://openairdocs.org/ad/2025-05-13): Turbine Section · Pratt & Whitney Canada PW535E and PW535E1. Effective Apr 23, 2025

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

- [AD 2023-22-11](https://openairdocs.org/ad/2023-22-11) (historical): Autopilot Main Servo · Embraer EMB-505. Effective Dec 26, 2023
- [AD 2023-21-06](https://openairdocs.org/ad/2023-21-06) (historical): Cabin Equipment/Furnishings · Embraer EMB-505. Effective Dec 11, 2023
- [AD 2020-12-08](https://openairdocs.org/ad/2020-12-08) (historical): Elevator Structure; Rudder Structure; Ailerons · Embraer EMB-505. Effective Jul 1, 2020
- [AD 2013-22-20](https://openairdocs.org/ad/2013-22-20) (historical): Landing Gear · Embraer EMB-505. Effective Nov 8, 2013
- [AD 2011-20-01](https://openairdocs.org/ad/2011-20-01) (historical): Flight Controls · Embraer - Empresa Brasileira de Aeronautica EMB-505. Effective Oct 31, 2011

## Information bulletins (advisory) (2 in force)

- [SAIB CE-16-23](https://openairdocs.org/saib/CE-16-23): Navigation; Degraded Attitude and Heading Reference System (AHRS) Performance When Operating in Areas of Unreliable or Unavailable Global Positioning System (GPS) Signal. Issued Sep 7, 2016
- [SAIB CE-10-46](https://openairdocs.org/saib/CE-10-46): Navigation; Embraer EMB-505 Terrain Awareness Warning System (TAWS) Instructions in Airplane Flight Manual. Issued Aug 16, 2010

## NTSB investigations

None matched to N401QS.

## FAA accident and incident reports

None matched to N401QS.

## Reports on N401QS not matched to an aircraft (1)

They name N401QS, but no registry record covers the date, the aircraft registered then was built later, or the report describes another aircraft.

- [Incident 20030106000049I](https://openairdocs.org/incident/20030106000049I), Jan 6, 2003: Gulstm GIV (N401QS), Rifle, CO, Minor damage. (-23) On jan. 6, 2003, at 0053 UTC during landing in Rifle, CO (kril) the airplane was not able to stop within the length of the runway and it ended up…

## Service difficulty reports

None filed for this aircraft. Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model.

## Service difficulty reports on N401QS not matched to an aircraft (24)

They name N401QS, but no registry record covers the date, the aircraft registered then was built later, or the report describes another aircraft.

- [SDR GR4D20160804001](https://openairdocs.org/sdr/GR4D20160804001), Jun 23, 2016: STRAP. CORRODED. HORIZONTAL STABILIZER T/E LT UPPER OVERHANG STRAPS HAVE CORROSION AROUND SEVERAL SCREW HOLES. REQUIRES MAJOR REPAIR DOCUMENTED ON FORM 8100-9.
- [SDR GR4D20160713001](https://openairdocs.org/sdr/GR4D20160713001), Jun 17, 2016: CHANNEL. CRACKED. BS 169 CHANNEL CRACKED BETWEEN MAIN ENTRANCE DOOR ACTUATOR ATTACH POINTS. APPROXIMATE LENGTH IS 0.75 INCH.
- [SDR GR4D20160719006](https://openairdocs.org/sdr/GR4D20160719006), Jun 15, 2016: HINGE FITTING. CORRODED. LEFT ELEVATOR HINGE NR 4, ATTACHED TO HORIZONTAL STABILIZER SIDE, CORRODED INSIDE ATTACH BOLT BORE.
- [SDR GR4D20160719005](https://openairdocs.org/sdr/GR4D20160719005), Jun 15, 2016: HINGE FITTING. CORRODED. LEFT ELEVATOR HINGE NR 3, ATTACHED TO HORIZONTAL STABILIZER SIDE, CORRODED INSIDE ATTACH BOLT BORE.
- [SDR GR4D20160719004](https://openairdocs.org/sdr/GR4D20160719004), Jun 15, 2016: HINGE FITTING. CORRODED. LEFT ELEVATOR HINGE NR 2, HORIZONTAL STABILIZER SIDE, CORRODED INSIDE ATTACH BOLT BORE.
- [SDR GR4D20160719003](https://openairdocs.org/sdr/GR4D20160719003), Jun 15, 2016: HINGE FITTING. CORRODED. RIGHT ELEVATOR HINGE NR 4, HORIZONTAL STABILIZER SIDE, CORRODED INSIDE ATTACH BOLT BORE.
- [SDR GR4D20160719002](https://openairdocs.org/sdr/GR4D20160719002), Jun 15, 2016: HINGE FITTING. CORRODED. RIGHT ELEVATOR HINGE NR 3, HORIZONTAL STABILIZER SIDE, CORRODED INSIDE ATTACH BOLT BORE.
- [SDR GR4D20160719001](https://openairdocs.org/sdr/GR4D20160719001), Jun 15, 2016: HINGE FITTING. CORRODED. RIGHT ELEVATOR HINGE NR2, HORIZONTAL STABILIZER SIDE, CORRODED INSIDE ATTACH BOLT BORE.
- [SDR GR4D2016071900001](https://openairdocs.org/sdr/GR4D2016071900001), Jun 15, 2016: HINGE FITTING. CORRODED. RIGHT ELEVATOR HINGE NR 2, HORIZONTAL STABILIZER SIDE. CORRODED INSIDE ATTACH BOLT BORE.
- [SDR GR4D20160718003](https://openairdocs.org/sdr/GR4D20160718003), Jun 15, 2016: FITTING. CORRODED. RIGHT VERTICAL STABILIZER FITTING FOR HORIZONTAL STABILIZER ATTACHMENT BLEEDING RUST FROM PIVOT BORE.
- [SDR GR4D20160718002](https://openairdocs.org/sdr/GR4D20160718002), Jun 15, 2016: FITTING. CORRODED. LEFT VERTICAL STABILIZER FITTING FOR HORIZONTAL STABILIZER ATTACHMENT BLEEDING RUST FROM PIVOT BEARING BORE.
- [SDR GR4D20160718001](https://openairdocs.org/sdr/GR4D20160718001), Jun 15, 2016: ATTACH FITTING. CORRODED. HORIZONTAL STABILIZER PIVOT FITTING CORRODED AND BLEEDING RUST FROM LT AND RT LUG ATTACH POINTS. REQUIRES MAJOR REPAIR DOCUMENTED ON FAA FORM 8100-9.
- [SDR GR4D201408221408](https://openairdocs.org/sdr/GR4D201408221408), Aug 22, 2014: FITTING. CORRODED. LEFT FLAP TRACK LOWER ATTACH FITTING CORRODED, R & R FITTING.
- [SDR GR4D201408220001](https://openairdocs.org/sdr/GR4D201408220001), Aug 22, 2014: FLAP TRACK. CORRODED. LT FLAP TRACK CORRODED, REPLACED FLAP TRACK.
- [SDR DXTA2014020505637](https://openairdocs.org/sdr/DXTA2014020505637), May 10, 2014: ACM. MALFUNCTIONED. COCKPIT FILLED WITH SMOKE RAPIDLY 10 MINUTES AFTER APU STARTED UP FOLLOW BY BURNING SMELL. WE SHUT DOWN THE ACFT RIGHT AWAY. ALSO SMOKE IN THE MAIN CABIN. UNABL
- [SDR DXTA2012080305075](https://openairdocs.org/sdr/DXTA2012080305075), Aug 2, 2012: BRAKE SYS. FAILED. BRAKES ARE VERY HARD AND UNRESPONSIVE. PEDALS DEPRESS ALMOST FULL TRAVEL WITH SOFT LIMITED BRAKING. AT THE VERY END OF TRAVEL, BRAKE PEDALS TAKE A LARGE AMOUNT 
- [SDR GR4D20120530013](https://openairdocs.org/sdr/GR4D20120530013), May 30, 2012: LUG. CORRODED. RT AFT LUG ON SPONSON RIB HAS PITTING IN BORE.
- [SDR N93A08242010](https://openairdocs.org/sdr/N93A08242010), Aug 24, 2010: OVEN. SMOKE. OVEN SMOKES WHEN BEING OPERATED. MX PERFORMED OPS CHECK OF OVEN AND FOUND NO DISCREPANCIES. SUSPECT FOOD HAD BEEN SPILLED INSIDE OVEN.
- [SDR 140811052005](https://openairdocs.org/sdr/140811052005), Nov 5, 2005: WINDSHIELD. CRACKED. LEFT WINDSHIELD HAS 3 SMALL CRACKS IN OUTER PANE.
- [SDR 1408060605](https://openairdocs.org/sdr/1408060605), Jun 6, 2005: CONTROL SYSTEM. MALFUNCTIONED. DURING FLIGHT AT 250-290 KIAS, MOVING THE FLIGHT SPOILER HANDLE .5 - 1 INCH FROM CLOSED RESULTED IN AN ABRUPT ROLL TO THE LEFT.
- [SDR 1401022705](https://openairdocs.org/sdr/1401022705), Feb 27, 2005: SEAL. DEFLATED. DOOR SEAL HAD PARTIAL DEFLATION AT FLIGHT LEVEL 410.
- [SDR 1408020905](https://openairdocs.org/sdr/1408020905), Feb 9, 2005: MANIFOLD. MALFUNCTIONED. NOSE STEERING PULLING TO LEFT.
- [SDR 1408012205](https://openairdocs.org/sdr/1408012205), Jan 22, 2005: ACTUATOR. FAILED. IN FLIGHT FLAPS SELECTED 10 DEGREES, MOVED 7-8 DEGREES, STAB DID NOT MOVE AT ALL.
- [SDR 1408121004](https://openairdocs.org/sdr/1408121004), Dec 10, 2004: CONVERTER. FAILED. 1.5 HOURS INTO FLT LEFT AC POWER AND LT DC POWER FAILED.

## STCs that may be installed (OpenAirDocs) (47)

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 Executive EMB-505)

- [STC SA12141IB](https://openairdocs.org/stc/SA12141IB): GOGO HDX antenna systems integration. FTI ENGINEERING NETWORK GmbH
- [STC SA02279AT](https://openairdocs.org/stc/SA02279AT): Installation of a Boom Beam bulb, starter, and ballast. Whelen Aerospace Technologies
- [STC SA04761NY](https://openairdocs.org/stc/SA04761NY): True Blue TS56 Emergency Battery Power Supply Replacement. Mid-Continent Instrument Co. Inc
- [STC SA12286AT](https://openairdocs.org/stc/SA12286AT): Installation of a LEO Connectivity System. Embraer Engineering & Technology Center, USA, Inc
- [STC SA12143CH](https://openairdocs.org/stc/SA12143CH): Installation of SpaceX Starlink Aviation System. Nextant Aerospace
- [STC SA11158SC](https://openairdocs.org/stc/SA11158SC): Demonstration of aircraft tolerance to potential electromagnetic interference from certain Transmitting Potable Electronic Devices (T-PEDS). Liberty Partners Inc
- [STC SA02779SE](https://openairdocs.org/stc/SA02779SE): Installation of Gogo AVANCE L3 Inflight Connectivity System. AeroMech Incorporated
- [STC SA12140IB](https://openairdocs.org/stc/SA12140IB): Mechanical provisions for the installation of a GOGO HDX antenna. FTI ENGINEERING NETWORK GmbH
- [STC SA09887AC](https://openairdocs.org/stc/SA09887AC): Installation of an Avionica MK-III mini Quick Access Recorder (QAR) and optional 4G or LTE Avionica Cellular Module (avCM. Aircraft Systems and Manufacturing Inc
- [STC SA03316CH](https://openairdocs.org/stc/SA03316CH): Activation of an 802.11 a/b/g/n WiFi System. Elliott Aviation Technical Products Development Inc
- [STC SA02658SE](https://openairdocs.org/stc/SA02658SE): Installation of Garmin GI 275 Multi-Function Display System. Garmin International Inc
- [STC SA09942AC](https://openairdocs.org/stc/SA09942AC): Installation of Schatz Bearing Corporation, Radial Bearing P/N’s : KP60BHT-H-OPG and KP64BHT-H-OPG. AV8 PMA LLC
- [STC SA00087IB](https://openairdocs.org/stc/SA00087IB): Medical reconfiguration of the EMB-505. UMLAUT ENGINEERING GMBH
- [STC SA00076IB](https://openairdocs.org/stc/SA00076IB): Installation of Photo luminescent Safety Systems. STG AEROSPACE GERMANY GmbH
- [STC SA04552AT](https://openairdocs.org/stc/SA04552AT): Installation of cargo compartment floor covering. Embraer Engineering and Technology Center, USA, Inc
- [STC SA04548AT](https://openairdocs.org/stc/SA04548AT): Installation of an Avionica, LLC Quick Access Recorder/Data Concentrator model avRDC MAX (QAR) P/N 804-1250-32 and optional Avionica, LLC Cellular Module LTE (avCM LTE) P/N 650-0100-05. Aircraft Systems and Manufacturing Inc
- [STC SA00038IB](https://openairdocs.org/stc/SA00038IB): Replacement of the Passenger Seat Cushion Covers and Foams on the Embraer S.A. EMB-505. Waypoint Aerotec Limited
- [STC SA09856AC](https://openairdocs.org/stc/SA09856AC): Installation of BendixKing Aerowave 100 In-flight Data Link System for non-essential, non-required aircraft Cabin Systems & Equipments. Honeywell International Inc (Bendix King)
- [STC SA01727WI](https://openairdocs.org/stc/SA01727WI): Interior Alteration for Installation of a Coffee Maker and Modification of No Smoking Signs. Netjets Aviation Inc
- [STC SA04514NY](https://openairdocs.org/stc/SA04514NY): Single/Dual Transponder System ADS-B Upgrade. Scandinavian Avionics Design ApS
- [STC SA04463AT](https://openairdocs.org/stc/SA04463AT): Installation of a Gogo Business Aviation Avance L5 Air To Ground (ATG) In-Flight Entertainment and Connectivity (IFEC) System. Embraer Engineering & Technology Center - USA Inc
- [STC SA03010CE](https://openairdocs.org/stc/SA03010CE): Installation of a Lacobucci HF Electronics Nespresso Machine PIN HFE96-28T-10 and/or Monogram System -TIA Division Wavejet Microwave Oven PIN 400-1860-01. Embraer Engineering & Technology Center - USA Inc
- [STC SA04397NY](https://openairdocs.org/stc/SA04397NY): Installation of Satcom system. 328 Support Services GmbH
- [STC SA03003CE](https://openairdocs.org/stc/SA03003CE): Installation of an Aviator 200 Satcom System. Embraer Engineering & Technology Center - USA Inc
- [STC SA03005CE](https://openairdocs.org/stc/SA03005CE): Installation of an Aviator 200 Satcom System. Embraer Engineering & Technology Center - USA Inc
- [STC SA03001CE](https://openairdocs.org/stc/SA03001CE): Installation of Honeywell High Frequency (HF) Communication System, model KHF1050HF, and AvTec Selective Calling (SELCAL), model CSD-714. Embraer Engineering & Technology Center - USA Inc
- [STC SA03006CE](https://openairdocs.org/stc/SA03006CE): Installation of a Medical Evacuation Configuration (Medevac). Embraer Engineering & Technology Center - USA Inc
- [STC ST04340NY](https://openairdocs.org/stc/ST04340NY): Installation of TCAS 7.1 (ACAS II) upgrade of Prior Existing TCAS 7.0. Scandinavian Avionics Design ApS
- [STC SA00959DE](https://openairdocs.org/stc/SA00959DE): Installation of Concorde valve regulated Lead-Acid batteries in replacement of aircraft main batteries. Concorde Battery Corporation
- [STC SA00901DE](https://openairdocs.org/stc/SA00901DE): Installation of up to Two Exxternally Mounted Gimbal Systems. Straight Flight Inc
- [STC SA04165NY](https://openairdocs.org/stc/SA04165NY): Installation of Latitude Technologies Skynode S200 Satcom system must be performed. Latitude Technologies Corporation
- [STC SA03004CE](https://openairdocs.org/stc/SA03004CE): In accordance with Part 23 regulations specified in the current certification basis of Type Certificate Number A60CE, installation of pilot's new, extended seat tracks. Embraer S.A
- [STC SA03956AT](https://openairdocs.org/stc/SA03956AT): Installation of Aircell ATG-4000 High Speed Internet System (AHSI) and Aircell Axxess II Iridium Satcom or Aircell Aviator 200 SBB Satcom, Aircell ATG 5000 High Speed Internet System (AHSI) all with Wireless Local Area Network (WLAN). Nextant Aerospace
- [STC SA03973NY](https://openairdocs.org/stc/SA03973NY): Replacement of existing TCAS 7.0 by TCAS 7.1. Scandinavian Avionics Design ApS
- [STC SA03764NY](https://openairdocs.org/stc/SA03764NY): Installation of the Low Gain Satcom Antenna. Roeder Praezision GMBH
- [STC ST03776NY](https://openairdocs.org/stc/ST03776NY): Modification to upgrade existing Rockwell Collins TCAS (Model: TTR-920, TTR-921, and TTR-4000) at VERSION 7.0 to Rockwell Collins TCAS (Model: TTR-921, TTR-4000, and TTR-4100) at VERSION 7.1 (ACAS II). Scandinavian Avionics Design ApS
- [STC SA04278AT](https://openairdocs.org/stc/SA04278AT): Installation of a cabin In-Flight Entertainment & Passenger Audio System. Embraer Engineering & Technology Center - USA Inc
- [STC SA04145CH](https://openairdocs.org/stc/SA04145CH): Installation of a cosmetic threshold in the aft baggage compartment to protect interior coverings/materials from loading and removal of baggage. Elliott Aviation Technical Products Development, Inc
- [STC SA04260AT](https://openairdocs.org/stc/SA04260AT): Installation of an 802.11 Wireless Internet System. Embraer Engineering & Technology Center - USA Inc
- [STC SA04243AT](https://openairdocs.org/stc/SA04243AT): Installation of AFT Lavatory Coat Hanger Support. Embraer Engineering & Technology Center - USA Inc
- [STC SA01969SE](https://openairdocs.org/stc/SA01969SE): Installation of a Mid-Continent MD302 Standby Attitude Module. Mid-Continent Instruments and Avionics
- [STC SA03352CH](https://openairdocs.org/stc/SA03352CH): Activation of an 802.11 a/b/g and n Wi-Fi System. Elliott Aviation Technical Products Development, Inc
- [STC SA01789WI](https://openairdocs.org/stc/SA01789WI): Quasar II Cabin Lighting with eConnect and Noise Mitigation. Duncan Aviation Inc
- [STC SA01760WI](https://openairdocs.org/stc/SA01760WI): Installation of an Aircell Universal Cabin System (UCS) 5000 with Wireless Local Area Network (WLAN). Duncan Aviation Inc
- [STC SA02121SE](https://openairdocs.org/stc/SA02121SE): Installation of Garmin GTS 825 (TAS) or GTS 855 (TCAS I) Traffic System. Garmin International Inc
- [STC SA01703WI](https://openairdocs.org/stc/SA01703WI): Installation of Concorde RG-380E/44 and RG-390E VRSLA Batteries. Concorde Battery Corporation
- [STC SA01692WI](https://openairdocs.org/stc/SA01692WI): Installation of Aircell High Speed Internet (AHSI) System with Wireless Local Area Network (WLAN) capability. Duncan Aviation Inc

## Related

- Other Embraer Executive EMB-505 aircraft: https://openairdocs.org/model/embraer-executive-emb-505/aircraft.md
- The Pratt & Whitney Canada PW535E1 engine: https://openairdocs.org/engine/pratt-whitney-canada-pw535e1.md

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