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N520HC — 1992 Mcdonnell Douglas Helicopter 520N | Aircraft History & Risk Profile

Mcdonnell Douglas Helicopter 520N · ALLISON 250 SER · S/N LN028

Registered owner: VALIAIR LC TRUSTEE (Wyoming) · Registry status: Valid · Current certificate issued 2025

0 NTSB accident / incident records
0 FAA service difficulty reports
0 open airworthiness directives
2025 last registration change (FAA proxy)

N520HC is a 1992 Mcdonnell Douglas Helicopter 520N currently registered in Wyoming does not appear in any NTSB investigation since 2008, with no maintenance difficulty report (SDR) in the FAA database. No open airworthiness directive is currently matched to this model. Its current registration certificate was issued in 2025, the only ownership marker the FAA publishes in bulk.

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What the full report unlocks

  • Risk score 0–100 with the four sub-scores explained
  • Every NTSB event in detail — verified against the airframe serial
  • All 0 SDRs grouped by aircraft system, benchmarked vs. the MD 500 / Hughes 369 series fleet
  • Open AD list with compliance summaries, red flags, methodology & sources
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