# N520DM: 1991 Burkhart Grob Luft G520 EGRETT

- Status: Valid registration
- Airframe: [Burkhart Grob Luft G520 EGRETT](https://openairdocs.org/model/burkhart-grob-luft-g520-egrett) (registry code 1660504, 1 seats)
- Engine: [Garrett TPE331-14F](https://openairdocs.org/engine/garrett-tpe331-14f) (registry code 29112)
- Data sheets: [TCDS E18NE](https://openairdocs.org/tcds/E18NE) (Honeywell Aerospace US LLC) (OpenAirDocs)
- Serial number: 10004
- Year built: 1991
- Type: Glider
- Engine type: Turbo-prop
- Airworthiness: Standard, normal
- Airworthiness date: July 31, 2025
- Certificate issued: April 6, 2021
- Expires: April 30, 2028
- Mode S code: A68945
- Registered owner: [Wilmington Turst Co Trustee](https://openairdocs.org/faa-owner/WILMINGTON%20TURST%20CO%20TRUSTEE)
- Location: [Wilmington, DE](https://openairdocs.org/faa-place/DE/Wilmington)
- Owner type: Corporation
- Owner's area on the map: 39.7357° N, 75.5321° W: Placed by OpenAirDocs: center of Wilmington, DE, within about 2 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=520DM
- Page: https://openairdocs.org/aircraft/N520DM

From the FAA registry file of October 21, 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): 2 in force

### Matched by airframe (Burkhart Grob Luft G520 EGRETT)

None in force.

### Matched by engine (Garrett TPE331-14F)

- [AD 2011-18-51 R1](https://openairdocs.org/ad/2011-18-51-R1): Main shaft bearing · Honeywell International TPE331-1, TPE331-10, TPE331-10A and 82 more. Effective Oct 19, 2011
- [AD 96-06-11](https://openairdocs.org/ad/96-06-11): Engine Compressor Components · Honeywell International TPE331-14A, TPE331-14B, TPE331-14F and 1 more. Effective May 28, 1996

### Historical (superseded or no longer in force)

- [AD 2011-18-51](https://openairdocs.org/ad/2011-18-51) (historical): Main shaft bearing · Honeywell International TPE331-1, TPE331-10, TPE331-10A and 82 more

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

- [SAIB NE-16-18](https://openairdocs.org/saib/NE-16-18): Power Lever  Loss of Power Control. Issued Jul 11, 2016

## NTSB investigations

None matched to N520DM.

## FAA accident and incident reports (1)

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [Incident 20080919848759I](https://openairdocs.org/incident/20080919848759I), Sep 19, 2008: Grob G520EGRETT (N520DM), Van Nuys, CA, Minor damage. (-23) Aircraft departed runway upon landing on rwy 16R at rvny due to strong unreported crosswind condition. Incident occured at 1340 local and resulted in…

## Service difficulty reports

None filed for this aircraft.

## Related

- Other Burkhart Grob Luft G520 EGRETT aircraft: https://openairdocs.org/model/burkhart-grob-luft-g520-egrett/aircraft.md
- STCs for the Burkhart Grob Luft G520 EGRETT: https://openairdocs.org/model/burkhart-grob-luft-g520-egrett/stcs.md
- The Garrett TPE331-14F engine: https://openairdocs.org/engine/garrett-tpe331-14f.md

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