FlarePath
Cases › DCA17FA021 › Cockpit voice recorder

BOEING 767AMERICAN AIRLINES INC

6 lines · 14:30:29.4 – 14:33:09.7 · Chicago, IL, 2016-10-28

The NTSB cautions that a transcript is not a precise science and, taken out of context, can mislead. These are the last words of real people — handle with care.
6 of 6 lines
CaptainFirst officerControllersWarningsSounds
The final secondsjump to the end ↓
  • 14:30:29.4STARTOF TRANSCRIPT 14:30:29.4 American three eighty three heavy runway two eight right at
  • 14:30:29.4TWRnovember five line up and wait. winds two zero zero at one four.
  • 14:30:46.6TWRrunway two eight right at november five cleared for takeoff.
  • 14:31:00.5RDO-2three heavy.
  • 14:32:15.6TWRnow?
  • 14:33:09.7PAevac this is the captain— HOT-2

Crew communication

6 lines readobservations a human-factors reviewer takes from a transcript — the sterile cockpit, the Board's own notations, rhythm, CRM markers. Not emotions, not scores: the affect is in the audio, and the audio is sealed
—
floor share · CA / FO %
0%
non-pertinent talk in sterile window
0 · 0 · 0
laughter · delivery · expletives
0 of 0
crew questions unanswered in 8 s
—
warnings with a crew response in 5 s
CaptainFirst officerFirst officer: 1 in minute 1ControllersControllers: 2 in minute 1Controllers: 1 in minute 214:3014:3114:3214:33
Utterances per minute, one row per speaker on one clock. shaded = sterile-cockpit window · red = end of recording.
Sterile cockpit · 14 CFR 121.542

Window: 14:22:00–14:33:07 · basis: recorder pressure altitude below 10,000 ft. Candidate non-pertinent lines below are a first reading for the investigator, not a finding.

No candidate non-pertinent conversation inside the window.

The Board’s own notations

Delivery and physiological notes the transcribers added in brackets, plus # expletives.

None beyond laughter (0).

Silences of 45 s or more
Concerns voiced, and what followed

Hedged or questioning lines from one pilot in the critical window, with the other pilot’s next words.

None found in the window.

Warnings and the response

No warning-system lines in the transcript.

Questions between the pilots left unanswered

Every question between the pilots drew a reply within 8 s.

Standard callouts
V1 · not in transcriptRotate / Vr · not in transcriptV2 · not in transcriptPositive rate · not in transcriptGear up · not in transcript1,000 ft · not in transcript500 ft · not in transcriptMinimums · not in transcriptGear down · not in transcriptRunway in sight · not in transcriptGo around · not in transcriptStabilized · not in transcript

“Not in transcript” never means “not said”: a line may be unintelligible, or the recording may not cover that phase.

Language, as counts
Speakerwordsquestionshedgesexclamationsexpletiveschecklistsnon-pertinent lines
First officer2000000

Read next to the Board’s coded human-factors findings on the case page. The NTSB cautions that a transcript is not a precise science; these are pointers into it, for a trained reader to weigh.

Hover a line to bookmark it or write a note against it — the note keeps the line’s time, speaker and words.

14:30:29.4STASTARTOF TRANSCRIPT 14:30:29.4 American three eighty three heavy runway two eight right atp.8
14:30:29.4ATCTWRnovember five line up and wait. winds two zero zero at one four.p.8
14:30:46.6ATCTWRrunway two eight right at november five cleared for takeoff.p.9
14:31:00.5FORDO-2three heavy.p.9
14:32:15.6ATCTWRnow?p.11
14:33:09.7PAPAevac this is the captain— HOT-2p.15