---
title: "Aircraft N512S — STEIGINGA THORP T-18 — Ownership Dossier"
canonical: https://whiteintel.dev/entity/ffd53463-6925-5d34-a97b-e73fd26582cb
json: https://whiteintel.dev/api/public/dossier/ffd53463-6925-5d34-a97b-e73fd26582cb
identifier: faa:N512S
jurisdiction: US
risk: Low
source: WhiteIntel corporate-ownership graph
---

# Aircraft N512S — STEIGINGA THORP T-18

**Type:** Asset  
**Jurisdiction:** US  
**Identifier:** `faa:N512S`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/ffd53463-6925-5d34-a97b-e73fd26582cb  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/ffd53463-6925-5d34-a97b-e73fd26582cb  

## Ownership & control

### Owners / controllers

- **INTERNATIONAL AIR SERVICES INC TRUSTEE** (registrant) — https://whiteintel.dev/entity/6d0e0284-cdef-5343-bed6-2547d3420c90

### UBO chain (walk to the ultimate owner)

1. **INTERNATIONAL AIR SERVICES INC TRUSTEE** — registrant → *Aircraft N512S — STEIGINGA THORP T-18*

## Provenance

- FAA aircraft — https://registry.faa.gov/aircraftinquiry/Search/NNumberResult?nNumberTxt=512S

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **Aircraft N512S — STEIGINGA THORP T-18**. Human view: https://whiteintel.dev/entity/ffd53463-6925-5d34-a97b-e73fd26582cb · Structured JSON: https://whiteintel.dev/api/public/dossier/ffd53463-6925-5d34-a97b-e73fd26582cb._

_Risk levels are heuristic investigative leads, not legal determinations of beneficial ownership. Every claim carries a source; an absent edge means "not yet observed in current sources", not "does not exist"._