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BOMBARDIER INC DHC-8-402COLGAN AIR 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.

1
timed facts
8
precedents
25
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. about 11:08 CDTFDRlandingp.3
    Incident landing on runway 9 with the nose gear retracted (figures 11 and 12); no injuries, substantial damage
Recorder events without a clock time
  • previous landing (SRN)Previous landing plotted in figures 3 and 4 for comparison, referenced to SRN
  • incident flight take-off (CDT)Take-off plotted in figures 5 and 6
  • gear-down timeframe (CDT)Gear extension attempt plotted in figures 7 and 8: gear handle, nose and main gear down-and-locked and up-and-locked discretes, hydraulic pressures and caution/warning panel indications
  • go-around timeframe (CDT)Go-around plotted in figures 9 and 10
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. Landing: Landing gear not configured

Precedents

8 closest casesranked by what happened, in the Board's words, and by the findings and occurrences it coded
  • CEN11IA6152011-09-01no fatalitiesmatch 60
    BOMBARDIER INC CL-600-2B19 · ATLANTIC SOUTHEAST AIRLINES INC
    Baton Rouge, LA
    Landing gear not configured
  • DCA19LA0702019-01-29substantialmatch 57
    Boeing 727 200 · Kalitta Charters Ii Llc
    Tuscaloosa, AL
    Landing gear not configured
  • ENG10IA0552010-09-28no fatalitiesmatch 56
    BOMBARDIER CL600 2B19 · SKYWEST AIRLINES, Inc.
    Milwaukee, WI
    Landing gear not configured
  • WPR10IA2562010-05-23no fatalitiesmatch 54
    BOMBARDIER INC CL-600-2B19 · SKYWEST AIRLINES INC
    Ontario, CA
    Landing gear not configured
  • CEN09FA0942008-12-16no fatalitiesmatch 52
    BOMBARDIER CL-600-2C10 · Mesa Airlines, Inc
    Chicago, IL
    Landing gear not configured
  • DCA16CA2262016-09-24substantialmatch 52
    BOMBARDIER INC DHC 8 202 · Champlain Enterprises, LLC
    Dulles, VA
    Landing gear not configured
  • DCA13CA0352012-12-26substantialmatch 50
    MCDONNELL DOUGLAS MD-11F · FEDERAL EXPRESS CORP
    Memphis, TN
    • ●Organizational issues › Development › Design
    • ●Personnel issues › Task performance › Use of equip/info
  • CEN11IA3792011-06-07no fatalitiesmatch 50
    BOMBARDIER INC CL-600-2B19 · SKYWEST AIRLINES INC
    Milwaukee, WI
    Landing gear not configured

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
  • 7 of 8Landing gear not configured
  • 4 of 8Sys/Comp malf/fail (non-power)
Set against the Board’s own findings for this case
Cited here, and common in the precedents
  • —
Cited here, not seen in the precedents
  • Support/oversight/monitoring › Training
Common in the precedents, not cited here
  • Aircraft systems › Landing gear system
  • Task performance › Maintenance

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
  • CEN11IA6152011-09-01 · BOMBARDIER INC CL-600-2B19 · ATLANTIC SOUTHEAST AIRLINES INC
    The improperly installed upper attachment bolt in the left main landing gear uplock assembly, which led to the failure of the left main landing gear to extend before landing. Contributing to the accident was maintenance personnel's lack of training on the installation and inspection of the uplock assembly.
  • DCA19LA0702019-01-29 · Boeing 727 200 · Kalitta Charters Ii Llc
    the captain's decision to continue the landing with an unsafe gear indication.
  • ENG10IA0552010-09-28 · BOMBARDIER CL600 2B19 · SKYWEST AIRLINES, Inc.
    The failure of the left main landing gear (MLG) to extend normally and manually for reasons that could not be conclusively determined.
  • WPR10IA2562010-05-23 · BOMBARDIER INC CL-600-2B19 · SKYWEST AIRLINES INC
    Failure of the airplane’s nose landing gear to extend for undetermined reasons.
  • CEN09FA0942008-12-16 · BOMBARDIER CL-600-2C10 · Mesa Airlines, Inc
    The failure of the left landing gear to extend due to improper maintenance when the landing gear door was replaced. Contributing to the incident was the manufacturer's inadequate maintenance manual instructions.

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).