# N129MM: 1968 Aerovodochody L-29 DELFIN

- Status: Valid registration
- Airframe: [Aerovodochody L-29 DELFIN](https://openairdocs.org/model/aerovodochody-l-29-delfin) (registry code 0564310, 2 seats)
- Engine: [Pratt & Whitney JT12A-6](https://openairdocs.org/engine/pratt-whitney-jt12a-6) (registry code 51703)
- Data sheets: [TCDS 1E9](https://openairdocs.org/tcds/1E9) (Erickson Incorporated DBA Erickson Air-Crane) (OpenAirDocs)
- Serial number: 892790
- Year built: 1968
- Type: Fixed wing single engine
- Engine type: Turbo-jet
- Airworthiness: Experimental, exhibition, racing
- Airworthiness date: February 29, 2008
- Certificate issued: June 6, 2019
- Expires: June 30, 2029
- Mode S code: A07640
- Registered owner: [Hga LLC](https://openairdocs.org/faa-owner/HGA%20LLC)
- Location: [Henderson, NV](https://openairdocs.org/faa-place/NV/Henderson)
- Owner type: LLC
- Owner's area on the map: 36.0847° N, 114.9633° W: Placed by OpenAirDocs at the center of ZIP code 89011, 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=129MM
- Page: https://openairdocs.org/aircraft/N129MM

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): 3 in force

### Matched by airframe (Aerovodochody L-29 DELFIN)

None in force.

### Matched by engine (Pratt & Whitney JT12A-6)

- [AD 71-24-05](https://openairdocs.org/ad/71-24-05): Compressor Rotor Discs · Pratt & Whitney Division JFTD12A-4A (T73P-1), JFTD12A-5A (T73-P-700), JT12A-6 and 2 more. Effective May 31, 1974
- [AD 71-17-06](https://openairdocs.org/ad/71-17-06): Stage 2, 3, 7 and 8 Compressor Rotor Discs · Pratt & Whitney Division J60-P-5B, JT12A-6, JT12A-6A and 1 more. Effective Aug 17, 1971
- [AD 56-06-02](https://openairdocs.org/ad/56-06-02): Cylinder Flange Attaching Stud · Pratt & Whitney Division Double Wasp CA15, Double Wasp CA17, Double Wasp CA18 and 115 more

## Information bulletins (advisory)

None matched.

## NTSB investigations (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 WPR22FA350](https://openairdocs.org/ntsb/WPR22FA350), Sep 18, 2022: Aerovodochody L-29 Delfin (N129MM), Reno, NV, destroyed, 1 fatal. Probable cause: The pilot’s in-flight incapacitation due to G-induced loss of consciousness, which resulted in a subsequent impact with terrain.

## 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, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [Accident 20220918023369A](https://openairdocs.org/incident/20220918023369A), Sep 18, 2022: Aerovodochody L-29 DELFIN (N129MM), Stead, NV, Destroyed, 1 fatal. During rara ncar 2022, [privacy data omitted] turned left at pylon 4 heading toward pylon 5 and turned too FAR left and appeared to witnesses that [privacy…

## 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 Aerovodochody L-29 DELFIN aircraft: https://openairdocs.org/model/aerovodochody-l-29-delfin/aircraft.md
- The Pratt & Whitney JT12A-6 engine: https://openairdocs.org/engine/pratt-whitney-jt12a-6.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.