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Cases › DCA09CA051 › The analyst

BOEING 767 332Delta Air Lines

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.

0
timed facts
8
precedents
8
passages to ask

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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

0 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

No timed facts: this docket has no extracted recorder sequence and no transcript.

Recorder events without a clock time
  • about 2 h 20 min after takeoffCruising at 37,000 ft at approximately 260 knots indicated, the airplane descended to 35,000 ft
  • about 3 minutes laterRapidly changing lateral and vertical accelerations for approximately 20 seconds; the airplane rolled 25 degrees right and pitched down 2 degrees before returning to its previous attitude; autopilot engaged throughout
  • onset of eventElevators jostled then returned; outboard ailerons fixed while inboard ailerons deflected toward a right roll; rudder deflected right; no rudder pedal or column input; control wheel deflected 10 degrees right concurrent with the inboard aileron deflection; no slat or flap deployment
  • eventMaximum lateral accelerations approximately +0.25 g and -0.10 g; maximum vertical accelerations approximately +1.6 g and +0.5 g; temperature steady while wind speed and direction fluctuated
  • about 55 minutes after the eventFlight 419 landed
Flight Data Recorder 10 - Specialist's Factual Report · 5 events extracted by claude-fable-5-1 (in-session)
How the Board coded the sequence
  1. Enroute-cruise: Turbulence encounter

Precedents

8 closest casesranked by what happened, in the Board's words, and by the findings and occurrences it coded
  • DCA19CA2082019-08-27no fatalitiesmatch 103
    Mcdonnell Douglas MD88 · Delta Air Lines, Inc
    Chicago, IL
    • ●Environmental issues › Conditions/weather/phenomena › Turbulence
    Turbulence encounter
  • DCA25LA0412024-11-18no fatalitiesmatch 102
    BOEING 757-231 · DELTA AIR LINES INC
    Cooper Hill, MO
    • ●Environmental issues › Conditions/weather/phenomena › Turbulence
    Turbulence encounter
  • DCA19CA1892019-07-22no fatalitiesmatch 101
    Boeing 767 · UNITED AIR LINES INC
    San Juan, PR
    • ●Environmental issues › Conditions/weather/phenomena › Turbulence
    Turbulence encounter
  • DCA25LA0232024-11-03no fatalitiesmatch 101
    BOEING 767-322 · UNITED AIRLINES INC
    Kingston, CB
    • ●Environmental issues › Conditions/weather/phenomena › Turbulence
    Turbulence encounter
  • DCA22LA0122021-10-09no fatalitiesmatch 100
    BOEING 737-8H4 · SOUTHWEST AIRLINES CO
    Lexington, VA
    • ●Environmental issues › Conditions/weather/phenomena › Turbulence
    Turbulence encounter
  • DCA19CA0342018-12-04no fatalitiesmatch 100
    Boeing 767 · Delta Air Lines
    SUNNS intersection, Osaka, JP
    • ●Environmental issues › Conditions/weather/phenomena › Turbulence
    Turbulence encounter
  • DCA19CA0912019-02-18no fatalitiesmatch 100
    Boeing 737 · Delta Air Lines Inc
    Franklin, TN
    • ●Environmental issues › Conditions/weather/phenomena › Turbulence
    Turbulence encounter
  • DCA18CA2512018-07-23no fatalitiesmatch 99
    Mcdonnell Douglas MD88 · Delta Air Lines
    Charlotte, NC
    • ●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
  • DCA19CA2082019-08-27 · Mcdonnell Douglas MD88 · Delta Air Lines, Inc
    an encounter with convective turbulence during descent.
  • DCA25LA0412024-11-18 · BOEING 757-231 · DELTA AIR LINES INC
    An encounter with convective induced turbulence which resulted in a flight attendant serious injury.
  • DCA19CA1892019-07-22 · Boeing 767 · UNITED AIR LINES INC
    An encounter with convective turbulence during cruise flight.
  • DCA25LA0232024-11-03 · BOEING 767-322 · UNITED AIRLINES INC
    An inadvertent encounter with convective turbulence while in enroute cruise flight.
  • DCA22LA0122021-10-09 · BOEING 737-8H4 · SOUTHWEST AIRLINES CO
    The airplane’s inadvertent encounter with convective turbulence.

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).