Atlas / NTSB / OAK74DVG42

NTSB CAROL · Event

Event OAK74DVG42

1974-04-17 WILLIAMS, California, United States None 1 aircraft Status: Completed

Aircraft involved

N8366 Grumman G-164A 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

GRUMMAN G-164A · N8366

Damage

Destroyed

Craft type

Airplane

Classification

Accident

Light condition

Dawn

Weather

VMC

Phase of flight

DH

Operator type

Part 135 (air taxi/commuter)

Kind of flying

CA

Weather at impact

Sky

CLEAR

Temp

70° F

Aircraft history

Serial number

000000000861

Total time

1,220 hrs

Pilot

Certificate

Commercial

Total hours

2,075

Age

37

Probable cause (from PRE1982.MDB)

ADDY.

Investigator remarks

BLOWER SECTION FLOATING GR FAILED. LND IN RICE P

Cause factors

74/C/AG C
POWERPLANT BLOWER,IMPELLER ASSEMBLY Cause
88/C/95 C
MISCELLANEOUS ACTS,CONDITIONS MATERIAL FAILURE Cause
83/K/A K
TERRAIN WET,SOFT GROUND Joint factor
88/K/94 K
MISCELLANEOUS ACTS,CONDITIONS OVERLOAD FAILURE Joint factor

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 0993. Source file NTSB_1974_3_0993.txt. Modern CAROL record on data.ntsb.gov ↗.

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