Cases › DCA23FA428 › The analyst
AIRBUS SAS A350-941Delta 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
29
passages to ask
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passages, not paraphrasesTry
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 reportNo timed facts: this docket has no extracted recorder sequence and no transcript.
Recorder events without a clock time
- ~1300 UTCAircraft departed shortly after 1300 UTC
- cruise (~9 hours)Aircraft climbed to cruise altitude; cruise portion of flight lasted approximately 9 hours; autopilot engaged shortly after departure and remained on until final approach
- 2231:15 UTCDuring descent, as aircraft passed through pressure altitude of about 15,100 ft and computed airspeed of 312 kts, aircraft experienced a period of severe turbulence
- 2231:15 UTC (within <1 second)Aircraft experienced vertical accelerations ranging from +1.69g to -0.97g and recorded vertical speeds from +3,000 fpm to -10,600 fpm; peak values likely not captured due to sampling rate; aircraft experienced perturbations in pitch, roll, yaw, and airspeed
- 2248:06 UTCAircraft landed
FLIGHT DATA RECORDER SPECIALIST'S FACTUAL REPORT · 5 events extracted by claude-sonnet-5
How the Board coded the sequence
- Approach: Turbulence encounter
Precedents
8 closest casesranked by what happened, in the Board's words, and by the findings and occurrences it coded- BOEING 737-924ER · UNITED AIRLINES INCChicago, IL
- ●Environmental issues › Conditions/weather/phenomena › Convective weather
Turbulence encounter - BOEING 757-232 · DELTA AIR LINES INCLakeland, GA
- ●Environmental issues › Conditions/weather/phenomena › Convective weather
Turbulence encounter - BOMBARDIER INC CL600 2D24 · MESA AIRLINES INCMcCook, NE
- ●Environmental issues › Conditions/weather/phenomena › Convective weather
Turbulence encounter - EMBRAER S A ERJ 170-200 LL · SKYWEST AIRLINES INCPeaster, TX
- ●Environmental issues › Conditions/weather/phenomena › Convective weather
Turbulence encounter - AIRBUS A320 232 · JetBlue AirwaysWood, SDTurbulence encounter
- AIRBUS INDUSTRIE A320-232 · UNITED AIRLINES INCHouston, TXTurbulence encounter
- AIRBUS INDUSTRIE A321-211 · AMERICAN AIRLINES INCMiami, FLTurbulence encounter
- AIRBUS A319-132 · SPIRIT AIRLINES INCNew Orleans, LATurbulence encounter
What the record says
a pattern, not a findingacross the 8 closest cases · 8 carry coded findings · 8 have a probable causeFindings the Board cited in those cases
- 5 of 8Environmental issues › Conditions/weather/phenomena › Turbulence
- 4 of 8Environmental issues › Conditions/weather/phenomena › Convective weathercited here too
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 › Convective weather
Cited here, not seen in the precedents
- —
Common in the precedents, not cited here
- Conditions/weather/phenomena › Turbulence
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
- DCA23LA3052023-06-01 · BOEING 737-924ER · UNITED AIRLINES INC
An encounter with convectively-induced turbulence (CIT).
- DCA24LA1352024-03-28 · BOEING 757-232 · DELTA AIR LINES INC
An inadvertent encounter with convective turbulence that resulted in a serious injury to a flight attendant.
- DCA15CA1312015-06-10 · BOMBARDIER INC CL600 2D24 · MESA AIRLINES INC
inadvertent encounter with turbulence while deviating around an area of known convective activity.
- DCA25LA3072025-08-29 · EMBRAER S A ERJ 170-200 LL · SKYWEST AIRLINES INC
The airplane’s encounter with convective turbulence that resulted in serious injuries to a passenger who was out of their seat when the seatbelt sign was illuminated.
- DCA16IA2152016-08-12 · AIRBUS A320 232 · JetBlue Airways
an inadvertent encounter with convective turbulence while in 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).