# N300ET: Honda HA-420 - Status: Valid registration - Airframe: [Honda HA-420](https://openairdocs.org/model/honda-ha-420) (registry code 4400000, 8 seats) - Data sheets: [TCDS A00018AT](https://openairdocs.org/tcds/A00018AT) (Honda Aircraft Company LLC) (OpenAirDocs) - Serial number: 42000300 - Type: Fixed wing multi engine - Engine type: Turbo-fan - Mode S code: A31FC8 - Registered owner: [Honda Aviation Service Co Inc](https://openairdocs.org/faa-owner/HONDA%20AVIATION%20SERVICE%20CO%20INC) - Location: [Greensboro, NC](https://openairdocs.org/faa-place/NC/Greensboro) - Owner type: Non-citizen corporation - Owner's area on the map: 36.1186° N, 79.8949° W: Placed by OpenAirDocs at the center of ZIP code 27410, within about 3 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based - FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=300ET - Page: https://openairdocs.org/aircraft/N300ET 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): 8 in force ### Matched by airframe (Honda HA-420) - [AD 2026-10-02](https://openairdocs.org/ad/2026-10-02): Fuselage Main, Plate/Skin · Honda HA-420. Effective Jul 2, 2026 - [AD 2026-06-71](https://openairdocs.org/ad/2026-06-71): Trailing Edge Flap Actuator · Honda HA-420. Effective May 8, 2026 - [AD 2026-01-01](https://openairdocs.org/ad/2026-01-01): Aileron Control System · Honda HA-420. Effective Feb 17, 2026 - [AD 2023-11-03](https://openairdocs.org/ad/2023-11-03): Windshield/Door Rain/Ice Removal · Honda HA-420. Effective Jun 16, 2023 - [AD 2022-18-03](https://openairdocs.org/ad/2022-18-03): Windshield/Door Rain/Ice Removal · Honda HA-420. Effective Sep 22, 2022 - [AD 2020-04-14](https://openairdocs.org/ad/2020-04-14): Landing Gear · Honda HA-420. Effective Apr 6, 2020 - [AD 2018-21-13](https://openairdocs.org/ad/2018-21-13): Landing Gear · Honda HA-420. Effective Nov 27, 2018 - [AD 2018-15-06](https://openairdocs.org/ad/2018-15-06): Time Limits · Honda HA-420. Effective Aug 13, 2018 ### Historical (superseded or no longer in force) - [AD 2022-05-13](https://openairdocs.org/ad/2022-05-13) (historical): Windshield/Door Rain/Ice Removal · Honda HA-420. Effective Apr 18, 2022 - [AD 2021-22-12](https://openairdocs.org/ad/2021-22-12) (historical): Trailing Edge Flap Actuator · Honda HA-420. Effective Nov 19, 2021 - [AD 2018-11-05](https://openairdocs.org/ad/2018-11-05) (historical): Landing Gear · Honda HA-420. Effective May 29, 2018 - [AD 2018-06-10](https://openairdocs.org/ad/2018-06-10) (historical): Landing Gear · Honda HA-420. Effective Apr 13, 2018 ## Information bulletins (advisory) None matched. ## NTSB investigations None matched to N300ET. ## NTSB investigations on N300ET not matched to an aircraft (1) From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. - [NTSB ERA14IA237](https://openairdocs.org/ntsb/ERA14IA237), Apr 26, 2014: Cessna 525 (N300ET), Port Orange, FL, incident, minor damage. Probable cause: The pilot's failure to attain a proper touchdown point during landing and his failure to go around when he recognized that he would not be able to stop the airplane on the runway, which resulted in a… ## FAA accident and incident reports None matched to N300ET. ## Reports on N300ET not matched to an aircraft (1) They name N300ET, but no registry record covers the date, the aircraft registered then was built later, or the report describes another aircraft. - [Accident 20140426006979A](https://openairdocs.org/incident/20140426006979A), Apr 26, 2014: Cessna 525B (N300ET), Port Orange, FL, Substantial damage. On April 26, 2014 about 1130 local time, a Cessna citation jet C-525B was substantially damaged due to water entering the aircraft after rolling out past the… ## 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 N300ET not matched to an aircraft (1) They name N300ET, but no registry record covers the date, the aircraft registered then was built later, or the report describes another aircraft. - [SDR AC02004F00000](https://openairdocs.org/sdr/AC02004F00000), Feb 20, 2004: WINDSHIELD. CRACKED. DURING FLIGHT, AT FLIGHT LEVEL, 21,000 FT, COPILOTS WINDSHIELD INNER PANEL CRACKED. PILOT IMMEDIATELY DESCENDED TO A SAFE ALTITUDE AND LANDED AS SOON AS POSSIBL ## STCs that may be installed (OpenAirDocs) (5) 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 (Honda HA-420) - [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 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 SA00076IB](https://openairdocs.org/stc/SA00076IB): Installation of Photo luminescent Safety Systems. STG AEROSPACE GERMANY GmbH - [STC SA04214NY](https://openairdocs.org/stc/SA04214NY): Installation of the Gogo AVANCE L3 System. Banyan Air Service - [STC SA01855WI](https://openairdocs.org/stc/SA01855WI): Installation of the Send Solutions Airtext Router in 14 CFR Part 23 Aircraft. 3S Certification LLC ## Related - Other Honda HA-420 aircraft: https://openairdocs.org/model/honda-ha-420/aircraft.md --- 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.