# N821DL: 2004 Aircraft Builders One AEROCOMP 7SL

- Status: Valid registration
- Airframe: [Aircraft Builders One AEROCOMP 7SL](https://openairdocs.org/model/aircraft-builders-one-aerocomp-7sl) (registry code 0561520, 6 seats)
- Engine: [Walter M601 series](https://openairdocs.org/engine/walter-m601-series) (registry code 64002)
- Data sheets: [TCDS E00048EN](https://openairdocs.org/tcds/E00048EN) (GE Aviation Czech s.r.o.) (OpenAirDocs)
- Serial number: 037SLX904
- Year built: 2004
- Type: Fixed wing single engine
- Engine type: Reciprocating
- Kit: Aerocomp Inc CA-7SLX
- Airworthiness: Experimental, amateur built
- Airworthiness date: February 21, 2004
- Certificate issued: April 22, 2020
- Expires: April 30, 2030
- Mode S code: AB34E8
- Registered owner: [Crockett Donald Richard](https://openairdocs.org/faa-owner/CROCKETT%20DONALD%20RICHARD)
- Location: [Artesia, NM](https://openairdocs.org/faa-place/NM/Artesia)
- Owner type: Individual
- Owner's area on the map: 32.7746° N, 104.2242° W: Placed by OpenAirDocs at the center of ZIP code 88210, within about 20 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=821DL
- Page: https://openairdocs.org/aircraft/N821DL

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. The registry lists only the engine series, so ADs for every Walter M601 model are included.

## ADs that may apply (OpenAirDocs): 13 in force

### Matched by airframe (Aircraft Builders One AEROCOMP 7SL)

None in force.

### Matched by engine (Walter M601 series)

- [AD 2025-18-08](https://openairdocs.org/ad/2025-18-08): Engine Mount Section; Turbine Engine Compressor Section · GE Aviation Czech s.r.o. M601D-11, M601E-11, M601E-11A and 3 more. Effective Oct 21, 2025
- [AD 2024-03-05](https://openairdocs.org/ad/2024-03-05): Turbine Engine Reduction Gear · GE Aviation Czech s.r.o. M601D-11, M601E-11, M601E-11A and 3 more. Effective Apr 17, 2024
- [AD 2024-02-04](https://openairdocs.org/ad/2024-02-04): Turbine Engine Compressor Section · GE Aviation Czech s.r.o. M601E-11, M601E-11A, M601E-11AS and 1 more. Effective Mar 28, 2024
- [AD 2023-12-24](https://openairdocs.org/ad/2023-12-24): Engine · GE Aviation Czech s.r.o. M601E-11AS, M601E-11S, H75-100 and 2 more. Effective Aug 15, 2023
- [AD 2023-01-10](https://openairdocs.org/ad/2023-01-10): Turbine Engine Compressor Section · GE Aviation Czech s.r.o. M601E-11, M601E-11A, M601E-11AS and 2 more. Effective Mar 13, 2023
- [AD 2022-26-01](https://openairdocs.org/ad/2022-26-01): Turbine Engine Combustion Section · GE Aviation Czech s.r.o. M601D-11, M601E-11, M601E-11A and 10 more. Effective Jan 26, 2023
- [AD 2022-14-12](https://openairdocs.org/ad/2022-14-12): Turbine Engine Reduction Gear · GE Aviation Czech s.r.o. M601F, M601E-11, M601E-11A and 3 more. Effective Aug 18, 2022
- [AD 2022-13-16](https://openairdocs.org/ad/2022-13-16): Turbine Engine Compressor Section · GE Aviation Czech s.r.o. M601D-11. Effective Aug 1, 2022
- [AD 2020-23-01](https://openairdocs.org/ad/2020-23-01): Fuel Control/Turbine Engines · GE Aviation Czech s.r.o. H75-200, H80-100, H80-200 and 7 more. Effective Nov 24, 2020
- [AD 2020-15-04](https://openairdocs.org/ad/2020-15-04): Engine Collector/Tailpipe/Nozzle · GE Aviation Czech s.r.o. H75-100, H75-200, H80 and 10 more. Effective Aug 31, 2020
- [AD 2020-15-03](https://openairdocs.org/ad/2020-15-03): Turbine Section · GE Aviation Czech s.r.o. M601D-11, M601E-11, M601E-11A and 3 more. Effective Aug 31, 2020
- [AD 2015-17-20](https://openairdocs.org/ad/2015-17-20): Gas generator turbine (GGT) blades · GE Aviation Czech s.r.o. M601E-11, M601E-11A and M601F. Effective Oct 1, 2015
- [AD 2015-14-02](https://openairdocs.org/ad/2015-14-02): Reduction gearbox and supporting cone · GE Aviation Czech s.r.o. M601E-11, M601E-11A and M601F. Effective Aug 18, 2015

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

- [AD 2024-06-02](https://openairdocs.org/ad/2024-06-02) (historical): Engine Mount Section; Turbine Engine Compressor Section · GE Aviation Czech s.r.o. M601D-11, M601E-11, M601E-11A and 3 more. Effective Apr 11, 2024
- [AD 2021-13-07](https://openairdocs.org/ad/2021-13-07) (historical): Engine (Turbine/Turboprop) · GE Aviation Czech s.r.o. M601D-11, M601E-11, M601E-11A and 3 more. Effective Jun 30, 2021
- [AD 2018-03-22](https://openairdocs.org/ad/2018-03-22) (historical): Turbine Section · GE Aviation Czech s.r.o. M601D-11, M601E-11, M601E-11A and 3 more. Effective Mar 21, 2018
- [AD 2016-07-13](https://openairdocs.org/ad/2016-07-13) (historical): Engine power turbine (PT) disk · GE Aviation Czech s.r.o. M601E-11. Effective Apr 22, 2016

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N821DL.

## FAA accident and incident reports

None matched to N821DL.

## Reports on N821DL not matched to an aircraft (1)

They name N821DL, but no registry record covers the date, the aircraft registered then was built later, or the report describes another aircraft.

- [Accident 20040905023029A](https://openairdocs.org/incident/20040905023029A), Sep 5, 2004: Amtr COMPAIR7SL (N821DL), Canon City, CO, Minor damage. (-23) While making an approach into 1V6 Canon City, CO, about 15 feet from touchdown, a strong gust of wind came out of the southwest and blew the aircraft off…

## 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.

## STCs that may be installed (OpenAirDocs)

None matched to this aircraft's models.

## Related

- Other Aircraft Builders One AEROCOMP 7SL aircraft: https://openairdocs.org/model/aircraft-builders-one-aerocomp-7sl/aircraft.md
- The Walter M601 series engine: https://openairdocs.org/engine/walter-m601-series.md

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