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Cases › ENG15IA037 › The analyst

BOEING 787-8UNITED 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.

0
timed facts
8
precedents
19
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

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 report

No timed facts: this docket has no extracted recorder sequence and no transcript.

Recorder events without a clock time
  • approximately 1300 UTCAircraft struck by lightning; three of five primary display units went blank, a status message related to a power distribution channel was displayed, and the captain's forward windshield heat became inoperative. Standby instruments and heads up displays (HUD) were unaffected.
Flight Data Recorder - Specialist's Factual Report · 1 events extracted by claude-sonnet-5
How the Board coded the sequence
  1. Initial climb: Other weather encounter→
  2. Initial climb: Flight instrument malf/fail

Precedents

8 closest casesranked by what happened, in the Board's words, and by the findings and occurrences it coded
  • IAD02IA0462002-05-02no fatalitiesmatch 43
    Fairchild Dornier DO-328-300 · ATLANTIC COAST AIRLINES (ACA)
    ATLANTIC CITY, NJ
    matched on what happened, as the Board wrote it
  • ENG23LA0332023-08-03no fatalitiesmatch 43
    AIRBUS A320 · JETBLUE AIRWAYS CORP
    Jacksonville, FL
    matched on what happened, as the Board wrote it
  • CHI08IA2922008-09-22no fatalitiesmatch 42
    BOEING 757-223 · American Airlines, Inc.
    Chicago, IL
    matched on what happened, as the Board wrote it · same aircraft family
  • IAD02IA0762002-07-28no fatalitiesmatch 40
    Fairchild Dornier DO-328-300 · ATLANTIC COAST AIRLINES
    NEW YORK, NY
    matched on what happened, as the Board wrote it
  • NYC03FA0672003-03-27no fatalitiesmatch 40
    Boeing 717-200 · Air Tran Airways
    Flushing, NY
    matched on what happened, as the Board wrote it · same aircraft family
  • ATL04IA0852004-03-05no fatalitiesmatch 39
    Boeing 717-200 · AIRTRAN AIRWAYS INC
    Atlanta, GA
    matched on what happened, as the Board wrote it · same aircraft family
  • IAD02IA0572002-06-06no fatalitiesmatch 39
    Fairchild Dornier DO-328-300 · ATLANTIC COAST AIRLINES
    Cinncinnati, OH
    matched on what happened, as the Board wrote it
  • DFW08FA0562008-01-171 fatalmatch 39
    AERO COMMANDER 500B · Central Air Southwest
    Tulsa, OK
    Flight instrument malf/fail

What the record says

a pattern, not a findingacross the 8 closest cases · 3 carry coded findings · 8 have a probable cause
Findings the Board cited in those cases
Occurrences it coded
  • 2 of 8Electrical system malf/failure
Set against the Board’s own findings for this case
Cited here, and common in the precedents
  • —
Cited here, not seen in the precedents
  • Aircraft systems › Indicating/recording systems
Common in the precedents, not cited here
  • Aircraft systems › Electrical power system

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
  • IAD02IA0462002-05-02 · Fairchild Dornier DO-328-300 · ATLANTIC COAST AIRLINES (ACA)
    The partial loss of flight display information for undetermined reasons.
  • ENG23LA0332023-08-03 · AIRBUS A320 · JETBLUE AIRWAYS CORP
    The loss of both Integrated Drive Generators (IDG) due to worn fixed cylinder block bores, which caused the IDGs to be tripped offline and caused the airplane to enter an emergency electrical configuration.
  • CHI08IA2922008-09-22 · BOEING 757-223 · American Airlines, Inc.
    The failure of an electrical relay due to eroded contacts and the flight crew's decision to continue a flight that was operating on battery power.
  • IAD02IA0762002-07-28 · Fairchild Dornier DO-328-300 · ATLANTIC COAST AIRLINES
    The partial loss of flight display information for undetermined reasons.
  • NYC03FA0672003-03-27 · Boeing 717-200 · Air Tran Airways
    A failure of the left power control distribution unit (PCDU).
What it recommended after them
  • A-09-041TO THE FEDERAL AVIATION ADMINISTRATION: Require the Boeing Airplane Company to revise its 757/767 procedures and training for addressing an illuminated Standby Power Bus OFF light, to include specific steps to take so that complete loss of… · CHI08IA292Closed - Acceptable Action
  • A-09-042TO THE FEDERAL AVIATION ADMINISTRATION: Once Boeing Airplane Company has revised its procedures and training per Safety Recommendation A-09-41 for addressing an illuminated Standby Bus Power OFF light without depleting the main battery, req… · CHI08IA292Closed - Acceptable Alternate Action

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).