Cases › WPR11LA149 › The analyst
BOEING 757-232Delta 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.
2
timed facts
8
precedents
14
passages to ask
Ask the docket
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
2 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- SRN 6148 / 22:20:29 PSTFDRDescentp.3As the aircraft was passing through approximately 22,500 feet, there were perturbations noted in the acceleration parameters
- 22:20:29 PST (initial part of upset)FDRDescent - Upsetp.3The vertical acceleration experienced a change of about 1.7 g's in just over a second and the lateral acceleration had a change of about .3 g's from side to side
Recorder events without a clock time
- 2154 MSTFlight departed Salt Lake City, Utah
- 2240 PST (approximate)Airplane encountered turbulence while in descent about 80 miles southeast of Seattle-Tacoma International Airport
- approximately one minute durationThe period of disturbance lasted about one minute
- ~20 minutes after upsetThe aircraft continued to descend and landed normally
Flight Data Recorder 10 - Factual Report of Group Chairman (1 Embedded Photo) · 6 events extracted by claude-sonnet-5
How the Board coded the sequence
- Enroute-descent: Turbulence encounter
Precedents
8 closest casesranked by what happened, in the Board's words, and by the findings and occurrences it coded- BOEING 717-200 · DELTA AIR LINES INCDetroit, MI
- ●Environmental issues › Conditions/weather/phenomena › Turbulence
Turbulence encounter - MCDONNELL DOUGLAS MD88 · Dynamic Airways, LLCMiami, FL
- ●Environmental issues › Conditions/weather/phenomena › Turbulence
Turbulence encounter - BOEING 757 232 · DELTA AIR LINES INCAtlanta, GA
- ●Environmental issues › Conditions/weather/phenomena › Turbulence
Turbulence encounter - BOEING 757-2B7 · U.S. Airways, Inc.Cheltenham, MD
- ●Environmental issues › Conditions/weather/phenomena › Turbulence
Turbulence encounter - BOEING 737-924ER · UNITED AIR LINES INCPlevna, KS
- ●Environmental issues › Conditions/weather/phenomena › Turbulence
Turbulence encounter - BOEING 737-7H4 · SOUTHWEST AIRLINES COOrlando, FL
- ●Environmental issues › Conditions/weather/phenomena › Turbulence
Turbulence encounter - BOEING 737-7H4 · SOUTHWEST AIRLINES COHacienda Heights, CA
- ●Environmental issues › Conditions/weather/phenomena › Turbulence
Turbulence encounter - BOEING 777-232 · DELTA AIR LINES INCAtlanta, GA
- ●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 causeFindings the Board cited in those cases
- 8 of 8Environmental issues › Conditions/weather/phenomena › Turbulencecited 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 › 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
- DCA22LA1912022-08-29 · BOEING 717-200 · DELTA AIR LINES INC
An encounter with moderate turbulence during descent.
- ERA11CA3672011-06-22 · MCDONNELL DOUGLAS MD88 · Dynamic Airways, LLC
The in-flight encounter with convective turbulence, resulting in an injury to a cabin attendant.
- DCA14CA0362014-01-10 · BOEING 757 232 · DELTA AIR LINES INC
unexpected encounter with convective turbulence while the flight attendants were preparing for arrival.
- ERA11CA2472011-04-17 · BOEING 757-2B7 · U.S. Airways, Inc.
The in-flight encounter with turbulence, resulting in an injury to a cabin attendant.
- DCA16CA0102015-10-24 · BOEING 737-924ER · UNITED AIR LINES INC
An inadvertent encounter with clear air turbulence resulting in a serious injury to a flight attendant.
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).