Atlas / NTSB / SEA77FYG08

NTSB CAROL · Event

Event SEA77FYG08

1976-11-11 PALOUSE, Washington, United States None 1 aircraft Status: Completed

Aircraft involved

N9379M Mooney M20F 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

MOONEY M20F · N9379M

Damage

Substantial

Craft type

Airplane

Classification

Accident

Light condition

Dawn

Weather

VMC

Phase of flight

D1

Operator type

Part 91 (general aviation)

Airport

CASCADE AG STRIP

Kind of flying

B2

Weather at impact

Sky

CLEAR

Wind

090° / 8 kt

Temp

45° F

Aircraft history

Serial number

00000067003

Total time

1,697 hrs

Pilot

Certificate

Commercial

Total hours

3,500

Age

60

Probable cause (from PRE1982.MDB)

-C2YK-1B SEPARATED. 73HRS SINCE OVERHAUL.

Investigator remarks

AT 8000FT. 6 INCHES OF HARTZELL PROPELLER P/N HC

Cause factors

74/C/FA C
POWERPLANT BLADES Cause
88/C/95 C
MISCELLANEOUS ACTS,CONDITIONS MATERIAL FAILURE Cause
83/B/F B
TERRAIN ROUGH/UNEVEN
88/L/49 L
MISCELLANEOUS ACTS,CONDITIONS SEPARATION IN FLIGHT
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 3522. Source file NTSB_1976_3_3522.txt. Modern CAROL record on data.ntsb.gov ↗.

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