Atlas / NTSB / SEA76FYC71

NTSB CAROL · Event

Event SEA76FYC71

1976-09-30 HILLSBORO, Oregon, United States None 1 aircraft Status: Completed

Aircraft involved

N3472Q Cessna 320E None

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

CESSNA 320E · N3472Q

Damage

Substantial

Craft type

Airplane

Classification

Accident

Light condition

Dawn

Weather

VMC

Phase of flight

Cruise — descent (EF)

Operator type

D

Airport

PORTLAND

Kind of flying

DB

Weather at impact

Sky

CLEAR

Temp

74° F

Aircraft history

Serial number

0000320E0072

Total time

637 hrs

Pilot

Certificate

Commercial — instrument

Total hours

4,926

Age

51

Investigator remarks

NOSE GR NOT LOCKED DUE MALF UPLOCK HOOK.

Cause factors

68/A/D0 A
PERSONNEL IMPROPER MAINTENANCE (MAINTENANCE PERSONNEL) Cause — pilot/personnel action
70/A/CC A
AIRFRAME EMERGENCY/EXTENSION ASSEMBLY Cause — pilot/personnel action
70/A/CM A
AIRFRAME GEAR LOCKING MECHANISM Cause — pilot/personnel action
88/A/BA A
MISCELLANEOUS ACTS,CONDITIONS BINDING Cause — pilot/personnel action
88/A/47 A
MISCELLANEOUS ACTS,CONDITIONS IMPROPER ALIGNMENT/ADJUSTMENT 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 3 3280. Source file NTSB_1976_3_3280.txt. Modern CAROL record on data.ntsb.gov ↗.

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