Associated Evidence Record
Evidence for
The Warning That Never Came
Companion notes
Northwest Airlines Flight 255 crash and the death of Nicolaas Peter Vanos
This companion isolates which records independently establish the crash, the NTSB’s cause findings, and Nicolaas Peter Vanos’s death aboard Flight 255. It also distinguishes authoritative primary records from derivative memorial and reference accounts, and flags the few points those sources still do not resolve.
Primary records that fix the accident and the NTSB findings
The core provenance for Flight 255 is the NTSB accident report, with a duplicate host on the FAA site confirming the same findings. Those records establish that Northwest Airlines Flight 255 crashed shortly after takeoff from runway 3C at Detroit Metropolitan Wayne County Airport on August 16, 1987, in the late-evening local time window. They also identify the accident aircraft as McDonnell Douglas DC-9-82, registration N312RC, which matters because the causal findings are aircraft- and configuration-specific rather than generic to Northwest operations. [S1], [S3], [S11]
The same primary record set supplies the safety conclusions: the crew failed to use the taxi checklist to verify that flaps and slats were extended, and the takeoff warning system did not alert them because electrical power to that system was absent. The FAA lesson-summary page is useful as an official synthesis, but it is derivative; the evidentiary weight remains with the NTSB report, which is the controlling investigative authority here. [S1], [S3], [S11]
What the casualty counts prove, and what they do not
On fatalities, the NTSB record and later reporting agree on the same core totals: 148 passengers and 6 crewmembers died on board, and 2 people on the ground were killed. The contemporary-style reference accounts are not independent technical records, but they are consistent with the accident investigation and preserve the public-facing casualty summary, including the fact that one passenger survived seriously injured. For the present question, that convergence is enough to fix the scale of loss without turning the companion into a second narrative. [S1], [S3], [S5], [S11]
Nicolaas Peter ‘Nick’ Vanos is established as one of the dead passengers by the memorial entry and the passenger list, with additional reference corroboration from other public-history pages. Those sources confirm victim status, but they do not supply seat assignment or any individualized physical reconstruction. That limit is important: the available records prove his death aboard Flight 255, not a more granular personal itinerary within the cabin. [S6], [S7], [S8], [S12]
Claim provenance
| Claim | Supporting records | Independence | Qualification |
| C1 | [S1], [S3], [S5], [S11] | NTSB, cbsnews.com, FAA | The sources place the crash at about 20:45-20:46 local/eastern daylight time. |
| C2 | [S1], [S3], [S11] | NTSB, FAA | This identifies the accident aircraft only. |
| C3 | [S3], [S5], [S11] | NTSB, cbsnews.com, FAA | S3 and S11 describe the route as originating in Saginaw with intermediate stops; the destination leg at the time of the accident was Phoenix. |
| C4 | [S1], [S3], [S11] | NTSB, FAA | This is the NTSB probable-cause finding, not a criminal or disciplinary adjudication. |
| C5 | [S1], [S3], [S11] | NTSB, FAA | The reports say the reason for the power loss could not be determined. |
| C6 | [S1], [S3], [S11] | NTSB, FAA | This describes one documented impact point in the posttakeoff sequence. |
| C7 | [S1], [S3], [S5], [S11] | NTSB, cbsnews.com, FAA | The sources also report 1 passenger survived seriously injured. |
| C8 | [S1], [S3], [S5], [S11] | NTSB, cbsnews.com, FAA | The same records also report one ground person seriously injured and four with minor injuries. |
| C9 | [S8], [S12], [S6], [S7] | findagrave.com, flight255memorial.com, history.com, check-six.com | The memorial and passenger list identify him as one of the victims; the sources do not provide his seat assignment. |
Source key
The associated evidence packet contains visible source URLs, source roles and the complete claim ledger.
Archival Sources & Verified Claims
Investigative question
What do the captured records establish about the Flight 255 crash, the cause findings, and Nicolaas Peter Vanos’s death aboard the flight?
Event boundary
From the flight’s departure from Detroit Metropolitan Wayne County Airport on August 16, 1987 through the postimpact crash sequence and the documented death toll, with Nicolaas Peter Vanos included only as one identified passenger victim.
Sources
Source 1 — NTSB Aviation Accident Report NTSB/AAR-88/05 (Northwest Airlines Flight 255)
Role: stage0 primary record
Independent source group: NTSB
URL: https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/15885/pdf
Primary NTSB factual report and probable-cause summary.
Limit: Contains accident facts and findings, but the NTSB states it does not assign fault or legal liability.
Source 3 — NTSB/AAR-88/05 (copy hosted by FAA) - Northwest Airlines Flight 255
Role: stage0 primary record
Independent source group: NTSB
FAA-hosted copy of the NTSB report with executive summary and factual sequence.
Limit: Duplicate institutional record; useful for corroboration, not independent from NTSB Aviation Accident Report NTSB/AAR-88/05 (Northwest Airlines Flight 255).
Source 5 — 37 years since all but one passenger killed in Northwest Flight 255 crash at Detroit Metro Airport
Role: reference
Independent source group: cbsnews.com
URL: https://www.cbsnews.com/detroit/news/northwest-flight-255-crash-detroit-metro-airport-anniversary/
Contemporary anniversary news summary quoting the NTSB findings.
Limit: Secondary report; relies on the NTSB for core accident facts.
Source 6 — Plane crashes into highway, killing 156 (History.com timeline entry)
Role: reference
Independent source group: history.com
URL: https://www.history.com/this-day-in-history/August-16/plane-crashes-into-highway
Historical summary noting the crash, sole survivor, and Vanos among the fatalities.
Limit: Brief timeline entry; not a primary accident record.
Source 7 — Northwest 255 crash site and aircraft details (Check-Six)
Role: reference
Independent source group: check-six.com
URL: https://check-six.com/Crash_Sites/NWA_Flt_255.htm
Reference-site narrative with victim identification and crash context.
Limit: Includes extra narrative detail and interpretive material; only corroborated victim-identification facts are used here.
Source 8 — Nicolaas Peter 'Nick' Vanos memorial (Find a Grave)
Role: reference
Independent source group: findagrave.com
URL: https://www.findagrave.com/memorial/145179367/nicolaas_peter-vanos
Memorial page for Nicolaas Peter Vanos with birth/death information.
Limit: Secondary memorial database; suitable only for biographical identification and date/place reference.
Source 11 — FAA Lessons Learned: McDonnell Douglas DC-9 (N312RC) — Northwest Flight 255 (summary page)
Role: stage0 official statement
Independent source group: FAA
URL: https://www.faa.gov/lessons_learned/transport_airplane/accidents/N312RC
FAA lessons-learned summary of the accident and systems findings.
Limit: Condensed institutional summary; consistent with NTSB findings but not a separate investigation.
Source 12 — Passenger and Crew Member List — Northwest Airlines Flight 255 (Flight255Memorial.com)
Role: reference
Independent source group: flight255memorial.com
URL: https://flight255memorial.com/inlovingmemory.html
Passenger and crew roster for Flight 255.
Limit: Memorial roster; not a legal or investigative document.
Source 13 — Northwest 255 at DTW: Anatomy of a Human Error Accident (Flight Safety Foundation, Human Factors, Jul–Aug 1989)
Role: unreadable pdf
Independent source group: flightsafety.org
URL: https://flightsafety.org/hf/hf_jul-aug89.pdf
Captured PDF shell from Flight Safety Foundation.
Limit: Unreadable and yields no substantive factual content, so it is not used for claims.
Claim ledger
Evidence assessment
The captured records establish that Northwest Airlines Flight 255 crashed shortly after takeoff from Detroit-Metro on August 16, 1987, killing 154 people on board and 2 on the ground, with one passenger surviving seriously injured. The NTSB found the crew failed to ensure the flaps and slats were extended for takeoff and concluded the takeoff warning system did not sound because of lost electrical power. Nicolaas Peter "Nick" Vanos is identified in the victim roster and memorial sources as one of the passengers who died in the crash.