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Cases › DCA12CA086 › The analyst

BOEING 757 2B7American Airlines

What the docket says, assembled. No language model is involved, so nothing on this page can be invented — every line traces to a recorder, a report page or the Board's own record.

1
timed facts
8
precedents
11
passages to ask

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passages, not paraphrases
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Every answer is a passage of the docket with the page it came from, or the words “not in the docket”. Nothing is summarised or reasoned for you — read the source.

One timeline

1 timed factsthe recorder events from the FDR report, with the transcript's warnings, callouts, the words nearest each event and the final seconds — on one clock, as printed in each report
  1. 11:58:38-11:58:40 EDTFDRdescentp.3
    Turbulence event during descent into PHL (figures 1-6 plot the whole flight, a 30-second window of basic, pitch and roll/yaw parameters, and 2-minute windows of weather and autopilot parameters)
    see the traces at this moment ↗
Flight Data Recorder 10 - Specialist's Factual Report · 1 events extracted by claude-fable-5-1 (in-session)
How the Board coded the sequence
  1. Enroute-descent: Turbulence encounter

Precedents

8 closest casesranked by what happened, in the Board's words, and by the findings and occurrences it coded
  • DCA16CA2142016-08-17no fatalitiesmatch 102
    BOEING 737 924 · United Airlines
    Waco, TX
    • ●Environmental issues › Conditions/weather/phenomena › Turbulence
    Turbulence encounter
  • DCA19CA2082019-08-27no fatalitiesmatch 102
    Mcdonnell Douglas MD88 · Delta Air Lines, Inc
    Chicago, IL
    • ●Environmental issues › Conditions/weather/phenomena › Turbulence
    Turbulence encounter
  • DCA23LA0502022-11-10no fatalitiesmatch 101
    BOEING 737-8 · American Airlines Inc
    Miami, FL
    • ●Environmental issues › Conditions/weather/phenomena › Turbulence
    Turbulence encounter
  • DCA20CA0402019-12-15no fatalitiesmatch 101
    Embraer EMB145 · Piedmont Airlines
    Philadelphia, PA
    • ●Environmental issues › Conditions/weather/phenomena › Turbulence
    Turbulence encounter
  • DCA23LA2522023-04-22no fatalitiesmatch 101
    BOEING 777-223 · AMERICAN AIRLINES INC
    Atlantic Ocean, AO
    • ●Environmental issues › Conditions/weather/phenomena › Turbulence
    Turbulence encounter
  • DCA25LA2382025-06-16no fatalitiesmatch 101
    BOEING 737-924ER · UNITED AIRLINES INC
    Fort Myers, FL
    • ●Environmental issues › Conditions/weather/phenomena › Turbulence
    Turbulence encounter
  • DCA25LA0232024-11-03no fatalitiesmatch 100
    BOEING 767-322 · UNITED AIRLINES INC
    Kingston, CB
    • ●Environmental issues › Conditions/weather/phenomena › Turbulence
    Turbulence encounter
  • DCA25LA0442024-11-15no fatalitiesmatch 100
    BOEING 787-9 · AMERICAN AIRLINES INC
    Tokyo, OF
    • ●Environmental issues › Conditions/weather/phenomena › Turbulence
    Turbulence encounter

What the record says

a pattern, not a findingacross the 8 closest cases · 8 carry coded findings · 8 have a probable cause
Findings the Board cited in those cases
Occurrences it coded
  • 8 of 8Turbulence encounter
Set against the Board’s own findings for this case
Cited here, and common in the precedents
  • Conditions/weather/phenomena › Turbulence
Cited here, not seen in the precedents
  • —
Common in the precedents, not cited here
  • —

A teaching device, not a verdict: what the record would have looked at, next to what the Board found.

In the Board’s words — the closest cases
  • DCA16CA2142016-08-17 · BOEING 737 924 · United Airlines
    an encounter with convective turbulence.
  • DCA19CA2082019-08-27 · Mcdonnell Douglas MD88 · Delta Air Lines, Inc
    an encounter with convective turbulence during descent.
  • DCA23LA0502022-11-10 · BOEING 737-8 · American Airlines Inc
    An encounter with convective turbulence during descent.
  • DCA20CA0402019-12-15 · Embraer EMB145 · Piedmont Airlines
    An inadvertent encounter with convective turbulence.
  • DCA23LA2522023-04-22 · BOEING 777-223 · AMERICAN AIRLINES INC
    An encounter with inadvertent convective turbulence during cruise flight.

This is the pattern in the NTSB’s own record across similar accidents — which findings it cited, what it coded, what it recommended. It is drawn from the record, not written about this case, and it never assigns blame: investigations exist to prevent the next accident (ICAO Annex 13).