# N304ER: Diamond Aircraft Ind DA 42 NG

- Status: Valid registration
- Airframe: [Diamond Aircraft Ind DA 42 NG](https://openairdocs.org/model/diamond-aircraft-ind-da-42-ng) (registry code 2990105, 4 seats)
- Data sheets: [TCDS A57CE](https://openairdocs.org/tcds/A57CE) (Diamond Aircraft Industries GmbH) (OpenAirDocs)
- Serial number: 42.N626
- Type: Fixed wing multi engine
- Engine type: Reciprocating
- Certificate issued: October 20, 2026
- Expires: October 31, 2033
- Mode S code: A32EA2
- Registered owner: [Diamond Aircraft Sales U S A Inc](https://openairdocs.org/faa-owner/DIAMOND%20AIRCRAFT%20SALES%20U%20S%20A%20INC)
- Location: London Ontario, Canada
- Owner type: Non-citizen corporation
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=304ER
- Page: https://openairdocs.org/aircraft/N304ER

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): 14 in force

### Matched by airframe (Diamond Aircraft Ind DA 42 NG)

- [AD 2026-14-08](https://openairdocs.org/ad/2026-14-08): Landing Gear Actuator · Diamond Aircraft Industries DA 42, DA 42 M-NG and DA 42 NG. Effective Jul 20, 2026
- [AD 2025-24-07](https://openairdocs.org/ad/2025-24-07): Passenger/Crew Doors · Diamond Aircraft Industries DA 42, DA 42 M-NG and DA 42 NG. Effective Feb 12, 2026
- [AD 2024-06-13](https://openairdocs.org/ad/2024-06-13): Flight Control System · Diamond Aircraft Industries DA 42, DA 42 NG and DA 42 M-NG. Effective May 28, 2024
- [AD 2022-06-08](https://openairdocs.org/ad/2022-06-08): Flight Control System · Diamond Aircraft Industries DA 42, DA 42 M-NG and DA 42 NG. Effective May 9, 2022
- [AD 2022-03-01](https://openairdocs.org/ad/2022-03-01): Fuel Storage · Diamond Aircraft Industries DA 42, DA 42 M-NG and DA 42 NG. Effective Mar 17, 2022
- [AD 2021-22-03](https://openairdocs.org/ad/2021-22-03): Nose/Tail Landing Gear Attach Section · Diamond Aircraft Industries DA 42, DA 42 M-NG and DA 42 NG. Effective Dec 21, 2021
- [AD 2019-14-11](https://openairdocs.org/ad/2019-14-11): Flight Controls · Diamond Aircraft Industries DA 42 NG and DA 42 M-NG. Effective Sep 9, 2019
- [AD 2016-22-06](https://openairdocs.org/ad/2016-22-06): Autopilot · Diamond Aircraft Industries DA 40 NG, DA 42 NG and DA 42 M-NG. Effective Nov 16, 2016
- [AD 2014-04-04](https://openairdocs.org/ad/2014-04-04): Electric Power · Diamond Aircraft Industries DA 42 NG and DA 42 M-NG. Effective Apr 7, 2014
- [AD 2013-19-11](https://openairdocs.org/ad/2013-19-11): Landing Gear · Diamond Aircraft Industries DA 42, DA 42 M-NG and DA 42 NG. Effective Oct 31, 2013
- [AD 2013-07-01](https://openairdocs.org/ad/2013-07-01): Landing Gear · Diamond Aircraft Industries DA 42, DA 42 M-NG and DA 42 NG. Effective May 20, 2013
- [AD 2013-06-02](https://openairdocs.org/ad/2013-06-02): Power Plant · Diamond Aircraft Industries DA 42 M-NG and DA 42 NG. Effective Apr 8, 2013
- [AD 2012-17-07](https://openairdocs.org/ad/2012-17-07): Wings · Diamond Aircraft Industries DA 42, DA 42 M-NG and DA 42 NG. Effective Oct 11, 2012
- [AD 2011-10-13](https://openairdocs.org/ad/2011-10-13): Doors · Diamond Aircraft Industries DA 42, DA 42 M-NG and DA 42 NG. Effective Jun 17, 2011

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

- [AD 2022-21-15](https://openairdocs.org/ad/2022-21-15) (historical): Fuselage Miscellaneous Structure · Diamond Aircraft Industries DA 42, DA 42 NG and DA 42 M-NG. Effective Dec 14, 2022
- [AD 2017-18-10](https://openairdocs.org/ad/2017-18-10) (historical): Flight Controls · Diamond Aircraft Industries DA-42-M-NG, DA-42-NG and DA 42. Effective Oct 11, 2017

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N304ER.

## FAA accident and incident reports

None matched to N304ER.

## Service difficulty reports (6)

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 N3XR20240903003](https://openairdocs.org/sdr/N3XR20240903003), Aug 30, 2024: PISTON. CRACKED. DURING THE BORESCOPE INSPECTION REQUIRED BY DIAMOND MSB-E4-043, THE #4 PISTON IN THE RIGHT ENGINE WAS FOUND CRACKED.
- [SDR N3XR20240903002](https://openairdocs.org/sdr/N3XR20240903002), Aug 30, 2024: PISTON. CRACKED. DURING THE BORESCOPE INSPECTION REQUIRED BY DIAMOND MSB-E4-043, THE #4 PISTON IN THE RIGHT ENGINE WAS FOUND CRACKED.
- [SDR N3XR202409030001](https://openairdocs.org/sdr/N3XR202409030001), Aug 30, 2024: PISTON. CRACKED. DURING THE BORESCOPE INSPECTION REQUIRED BY DIAMOND MSB-E4-043/0 THE #3 PISTON WAS FOUND CRACKED.
- [SDR N3XR202401160001](https://openairdocs.org/sdr/N3XR202401160001), Jan 11, 2024: PISTON. CRACKED. ON TAKE-OFF, THE CREW NOTICED A LOW OIL PRESSURE INDICATION VIA A WARNING ON THE G1000 FOR THE RIGHT ENGINE. AN EMERGENCY WAS DECLARED AND THE CREW LANDED SUCCE
- [SDR N3XR202106030001](https://openairdocs.org/sdr/N3XR202106030001), May 24, 2021: BELT. SEPARATED. DURING THE LANDING APPROACH, THE SERPENTINE BELT (P/N-E4A-00-740-000) ON THE REAR OF THE INSTALLATION FAILED. THE FLIGHT CREW NOTICED THE ALTERNATOR WAS INOP AN
- [SDR N3XR20200827002](https://openairdocs.org/sdr/N3XR20200827002), Aug 4, 2020: GEARBOX. MAKING METAL. DURING A ROUTINE INSPECTION, SEVERAL LARGE PARTICLES WERE FOUND ON THE GEARBOX MAGNETIC DRAIN PLUG. THE GEARBOX WAS REPLACED WITH A NEW UNIT.

## STCs that may be installed (OpenAirDocs) (21)

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 (Diamond Aircraft Ind DA 42 NG)

- [STC SA04837NY](https://openairdocs.org/stc/SA04837NY): Installation of AeroLED's Holdings, LLC., position lights, navigation lights, strobe lights and beacon lights. AeroLED's Holdings, LLC
- [STC SA04046CH PAGE 1](https://openairdocs.org/stc/SA04046CH%20PAGE%201): Installation of L-3 GENESIS (TM) Electronic Standby Instrument System (ESI-500/MAG-500). Acron Aviation Inc
- [STC SA02444AK](https://openairdocs.org/stc/SA02444AK): Approval of the L-3 Communications NGT 9000/9000R ADS-B system installed. ADS-B Technologies LLC
- [STC SA04681NY](https://openairdocs.org/stc/SA04681NY): Installation of MT-Propeller Entwicklung GmbH model MTV-6-( )-C-F/CF190-69( ) 3-blade, constant speed, full feathering propellers and spinners. MT- Propeller Entwicklung GmbH
- [STC SA00401BO](https://openairdocs.org/stc/SA00401BO): Installation of a SkyTrax100B UAT receiver. Avidyne Corporation
- [STC SA00344BO PAGE 1](https://openairdocs.org/stc/SA00344BO%20PAGE%201): Installation of Parmetheus Plus LED PAR36 and PAR46 taxi and landing lights. Whelen Aerospace Technologies
- [STC SA04165NY](https://openairdocs.org/stc/SA04165NY): Installation of Latitude Technologies Skynode S200 Satcom system must be performed. Latitude Technologies Corporation
- [STC SA02013CH](https://openairdocs.org/stc/SA02013CH): Installation of Avidyne Corporation Traffic Advisory System (TAS). Avidyne Corporation
- [STC SA01828SE](https://openairdocs.org/stc/SA01828SE): Installation of J.P. Instruments (JPI) EDM-960 Primary Engine Data Management System. J. P. Instruments
- [STC SA02212AK](https://openairdocs.org/stc/SA02212AK): Replacement of existing landing and/or taxi light reflector and bulbs with high intensity discharge (HID) lighting systems. Seaplanes North LLC
- [STC SA03701NY](https://openairdocs.org/stc/SA03701NY): Installation of RF-006(A) Main Wheel and RA-002(B) Nose Wheel with EA-003.7N(A) Brake System. Beringer Aero
- [STC SA11172SC](https://openairdocs.org/stc/SA11172SC): Installation of an ADS600-B Automatic Dependent Surveillance-Broadcast (ADS-B) Universal Access Transceiver (UAT) and Global Positioning System (GPS) antenna. NavWorx Inc
- [STC SA01969SE](https://openairdocs.org/stc/SA01969SE): Installation of a Mid-Continent MD302 Standby Attitude Module. Mid-Continent Instruments and Avionics
- [STC SA02442AK PAGE 1](https://openairdocs.org/stc/SA02442AK%20PAGE%201): Approval of the L-3 Communications NGT 2000/2500 ADS-B system. ADS-B Technologies, LLC
- [STC SA02121SE](https://openairdocs.org/stc/SA02121SE): Installation of Garmin GTS 825 (TAS) or GTS 855 (TCAS I) Traffic System. Garmin International Inc
- [STC SA02717NY PAGE 1](https://openairdocs.org/stc/SA02717NY%20PAGE%201): Installation of VoiceFlight Systems LLC VFS101 Speech Recognition Module. VoiceFlight Systems LLC
- [STC SA00432SE](https://openairdocs.org/stc/SA00432SE): Installation of EGT 701 series fuel flow instrument. J P Instruments
- [STC SA00861SE](https://openairdocs.org/stc/SA00861SE): Installation of J.P. Instruments (JPI) fuel flow indicating system. J P Instruments
- [STC SA02226SE](https://openairdocs.org/stc/SA02226SE): Installation of vortex generators on the wings and tail surfaces. Micro AeroDynamics Inc
- [STC SA03254CH](https://openairdocs.org/stc/SA03254CH) (historical): Installation of an Electric Vapor Air Cycle System. Standard Aero Business Aviation Services LLC
- [STC SA02717NY](https://openairdocs.org/stc/SA02717NY) (historical): Installation of VoiceFlight Systems LLC VFS101 Speech Recognition Module. VoiceFlight Systems LLC

## Related

- Other Diamond Aircraft Ind DA 42 NG aircraft: https://openairdocs.org/model/diamond-aircraft-ind-da-42-ng/aircraft.md

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