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Atlas / NTSB / SEA78FA053

NTSB CAROL · Event

Event SEA78FA053

1978-08-10 ENUMCLAW, Washington, United States Fatal 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

STINSON 108E · N4122C

Damage

Destroyed

Craft type

Airplane

Classification

Accident

Light condition

Dawn

Weather

IMC

Phase of flight

D9

Operator type

D

Kind of flying

B0

Weather at impact

Sky

BROKEN

Wind

170° / 7 kt

Temp

56° F

Aircraft history

Serial number

0000108-5122

Total time

1,735 hrs

Pilot

Certificate

Commercial — instrument

Total hours

250

Age

51

Probable cause (from PRE1982.MDB)

FRAYED & GRAYISH IN COLOR.

Investigator remarks

VACUUM PUMP HOSE SPLIT EXPOSING CORDS THAT WERE

Cause factors

  • 64/A/04 A
    PILOT IN COMMAND CONTINUED VFR FLIGHT INTO ADVERSE WEATHER CONDITIONS Cause — pilot/personnel action
  • 64/A/66 A
    PILOT IN COMMAND SPATIAL DISORIENTATION Cause — pilot/personnel action
  • 64/A/09 A
    PILOT IN COMMAND EXCEEDED DESIGNED STRESS LIMITS OF AIRCRAFT Cause — pilot/personnel action
  • 75/J/JB J
    SYSTEMS VACUUM SYSTEM Joint cause
  • 88/J/95 J
    MISCELLANEOUS ACTS,CONDITIONS MATERIAL FAILURE Joint cause
  • 88/J/49 J
    MISCELLANEOUS ACTS,CONDITIONS SEPARATION IN FLIGHT Joint cause
  • 82/J/A J
    WEATHER LOW CEILING Joint cause

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 3 2642. Source file NTSB_1978_3_2642.txt. Modern CAROL record on data.ntsb.gov ↗.