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Atlas / NTSB / SEA74AS006

NTSB CAROL · Event

Event SEA74AS006

1973-08-16 MISSOULA, Montana, United States Serious 1 aircraft Status: Completed

Aircraft involved

Historical record (pre-1982)

NTSB recorded this accident in the pre-1982 coded-field schema — structured fields rather than free-text narrative. Decoded codes use established NTSB single-letter taxonomies; cause factors remain verbatim pending the Form 6120.4 codebook lookup.

Aircraft

BOEING 737 · N7381F

Damage

None

Craft type

Airplane

Classification

Accident

Light condition

Dawn

Weather

VMC

Phase of flight

D1

Weather at impact

Sky

CLEAR

Aircraft history

Serial number

000000020369

Total time

5,473 hrs

Pilot

Certificate

DA (DA)

Total hours

25,586

Age

52

Investigator remarks

DEFECTIVE COIL IN B SYSTEM TRANSFER VALVE.

Cause factors

  • 75/A/CE A
    SYSTEMS RUDDER AND RUDDER TAB CONTROL SYSTEM Cause — pilot/personnel action

Decoded against the NTSB Form 6120.4 cause-factor codebook (ct_Pre1982 table). Each row shows the raw triplet, modifier (Cause / Factor / etc.), category, and specific code.

Source: NTSB pre-1982 historical archive. Docket 1 0022. Source file NTSB_1973_1_0022.txt. Modern CAROL record on data.ntsb.gov ↗.

Related research

What the literature says.

Academic papers and agency reports matching this event's aircraft type. Sourced from NASA NTRS, NTSB Safety Studies, FAA CAMI, AOPA Air Safety Institute, Embry-Riddle Scholarly Commons, arXiv, and the Semantic Scholar academic graph.

Browse the full corpus — academia portal ↗