MCDONNELL DOUGLAS DC 9 83(MD-83)Caribbean Sun Airlines Inc
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.
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passages, not paraphrasesEvery 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.
- Not specified (no discrete sequence of events narrative provided)No sequence of events narrative was included in this factual report; report contains recorder description, time correlation methodology, and parameter list only
- Landing-landing roll: Sys/Comp malf/fail (non-power)→
- Landing-landing roll: Landing gear collapse→
- After landing: Evacuation
Precedents
8 closest casesranked by what happened, in the Board's words, and by the findings and occurrences it coded- BOEING 737-824 · United AirlinesDenver, CO
- ●Aircraft › Aircraft systems › Landing gear system
Landing gear collapse - BOEING 737-890 · Alaska AirlinesSanta Ana, CA
- ●Aircraft › Aircraft systems › Landing gear system
Landing gear collapseSys/Comp malf/fail (non-power) - BOEING 737 · Southwest Airlines, Co.Los Angeles, CA
- ●Aircraft › Aircraft systems › Landing gear system
- Boeing 767 · Federal ExpressLos Angeles, CA
- ●Aircraft › Aircraft systems › Landing gear system
Landing gear collapseSys/Comp malf/fail (non-power) - BOEING 737 · Southwest Airlines, Co.Chicago, IL
- ●Aircraft › Aircraft systems › Landing gear system
Landing gear collapse - BOEING 737-8 · American Airlines, Inc.Denver, CO
- ●Aircraft › Aircraft systems › Landing gear system
Sys/Comp malf/fail (non-power) - BOEING 737-3B7 · US AIRWAYS INCCharlotte (CLT), NC
- ●Aircraft › Aircraft systems › Landing gear system
- BOEING 737 · US AIRWAYS INCPhoenix (PHX), AZ
- ●Aircraft › Aircraft systems › Landing gear system
What the record says
a pattern, not a findingacross the 8 closest cases · 8 carry coded findings · 8 have a probable cause- 8 of 8Aircraft › Aircraft systems › Landing gear systemcited here too
- 4 of 8Landing gear collapse
- 4 of 8Aircraft structural failure
- 3 of 8Sys/Comp malf/fail (non-power)
- Aircraft systems › Landing gear system
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A teaching device, not a verdict: what the record would have looked at, next to what the Board found.
- DCA20LA0472019-12-23 · BOEING 737-824 · United Airlines
Maintenance personnel’s excessive grinding of the left main landing gear’s aft trunnion pin during its initial overhaul, which caused heat damage to the base metal and led to the fatigue crack that caused the pin to fail during the accident flight. Contributing to the accident was the failure of maintenance personnel to detect the excessive grinding during the initial overhaul and the fatigue crack during the subsequent overhaul.
- DCA23FA4172023-08-21 · BOEING 737-890 · Alaska Airlines
Maintenance personnel’s excessive grinding of the left main landing gear’s aft trunnion pin during machining, which imparted heat damage to the base metal and led to the fatigue cracking that caused the pin to fracture during landing.
- ENG09IA0142009-09-08 · BOEING 737 · Southwest Airlines, Co.
The failure of the right main landing gear inboard axle due to fatigue cracking as a result of fretting damage in one of the brake mounting bolt holes.
- DCA20LA1382020-08-19 · Boeing 767 · Federal Express
The left main landing gear’s failure to extend due to the separation of the brake rod retaining hardware from the aft inboard wheel for reasons that could not be determined based on the available evidence.
- ENG08IA0422008-10-01 · BOEING 737 · Southwest Airlines, Co.
The right nose landing gear axle's failure from intergranular and fatigue cracking due to an earlier bearing failure.
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).