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Turkish Airlines Flight 1951

aviation accident

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General referenceInterpretive dossier study · Crown Archives visual atlas
Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionSep 13, 2026
Entity authorityQ862548 ↗
Source-derived summary

Turkish Airlines Flight 1951 (also known as the Poldercrash or the Schiphol Polderbaan incident) was a passenger flight that crashed during landing at Amsterdam Schiphol Airport, the Netherlands, on 25 February 2009, resulting in the deaths of nine passengers and crew, including all three pilots.

The aircraft, a Turkish Airlines Boeing 737-800, crashed into a field about 1.5 km (0.9 mi) north of the Polderbaan runway (18R), prior to crossing the A9 motorway inbound, at 09:26 UTC (10:26 CET), having flown from Istanbul, Turkey. The aircraft broke into three pieces on impact. The wreckage did not catch fire.

The crash was caused primarily by the aircraft's automated reaction, which was triggered by a faulty radio altimeter. This caused the autothrottle to decrease the engine power to idle during approach. The crew noticed this too late to take appropriate action to increase thrust and recover the aircraft before it stalled and crashed. Boeing has since issued a bulletin to remind pilots of all 737 series and BBJ aircraft of the importance of monitoring airspeed and altitude, advising against the use of autopilot or autothrottle while landing in cases of radio altimeter discrepancies.

A 2020 The New York Times investigation claimed that the Dutch investigation into the crash "either excluded or played down criticisms" of Boeing following pressure from Boeing and US federal safety officials, who instead "emphasized pilot error as a factor ... rather than design flaws."

Background

Aircraft

The aircraft operating Flight 1951 was a 7-year-old Boeing 737-8F2 with registration TC-JGE, named "Tekirdağ".

Editorial summary

Begin with the source’s own compact description: “Turkish Airlines Flight 1951” is aviation accident. The dossier treats that line as a proposition to test through Turkish, Airlines and Flight, not as a finished interpretation.

Editorial reviewA concise reference frame for defining the subject, testing terminology and identifying the institution closest to the evidence. The current lead gives the account dated anchors—1951, 2009, 2020—that can be checked directly. The selected authority fields contribute no independent date. For this dossier, Turkish, Airlines and Flight is the immediate research focus.
Editorial analysis

Why this record matters

The phrase “aviation accident” supplies a clear boundary for inquiry. It also exposes the unanswered questions: who defined that boundary, when it became stable and which sources sit outside it.

Evidence profile

The citation trail is more important than the brevity of the summary: it shows where individual claims can be examined in context. The source revision retrieved here is dated Sep 13, 2026. The linked authority identifier is Q862548. Authority coordinates are 52.377, 4.714. 1 of 1 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1951, 2009 and 2020.

Critical limits

Overview language is designed for orientation and should not be treated as a substitute for the evidence cited beneath it. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.

How to read it

Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.

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Three-step research path

  1. Establish the record: confirm the title “Turkish Airlines Flight 1951”, its source revision and the description used here.
  2. Expand the search: follow Turkish Airlines Flight 1951 primary sources, Turkish Airlines Flight 1951 archive and Turkish research across catalogues and specialist indexes.
  3. Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.

Questions for further research

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Source & attribution

This entry incorporates text from “Turkish Airlines Flight 1951” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.