# N391ZA: 1981 Aero Vodochody L-39

- Status: Valid registration
- Airframe: [Aero Vodochody L-39](https://openairdocs.org/model/aero-vodochody-l-39) (registry code 05603SJ, 2 seats)
- Engine: [Ivchenko AI-25TL](https://openairdocs.org/engine/ivchenko-ai-25tl) (registry code 34703)
- Serial number: 132015
- Year built: 1981
- Type: Fixed wing single engine
- Engine type: Turbo-fan
- Airworthiness: Experimental, research and development
- Airworthiness date: June 9, 2025
- Certificate issued: April 7, 2020
- Expires: April 30, 2027
- Mode S code: A488C0
- Registered owner: [Northrop Grumman Systems Corp](https://openairdocs.org/faa-owner/NORTHROP%20GRUMMAN%20SYSTEMS%20CORP)
- Location: [El Segundo, CA](https://openairdocs.org/faa-place/CA/El%20Segundo)
- Owner type: Corporation
- Owner's area on the map: 33.9171° N, 118.4016° W: Placed by OpenAirDocs at the center of ZIP code 90245, within about a mile (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=391ZA
- Page: https://openairdocs.org/aircraft/N391ZA

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): 0 in force

### Matched by airframe (Aero Vodochody L-39)

None in force.

### Matched by engine (Ivchenko AI-25TL)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N391ZA.

## 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.

- [Incident 20170922020889I](https://openairdocs.org/incident/20170922020889I), Sep 22, 2017: Aero Vodochody L-39 (N391ZA), Thermal, CA, No damage. At 16,500 ft. during the cruise phase of the flight the crew experienced a rapid deceleration and high vibration coming from the engine. The crew declared an…

## 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 Aero Vodochody L-39 aircraft: https://openairdocs.org/model/aero-vodochody-l-39/aircraft.md
- The Ivchenko AI-25TL engine: https://openairdocs.org/engine/ivchenko-ai-25tl.md

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