Atlas / NTSB / OAK77DVD47

NTSB CAROL · Event

Event OAK77DVD47

1977-08-06 CONCORD, California, United States None 1 aircraft Status: Completed

Registry · N9798U

FAA Aircraft Registry record.

Make / Model

GRUMMAN AMERICAN AA-5A

Year of manufacture

1976 · 1 years old at event

Engine

LYCOMING 0-320 SERIES (180 hp)

Seats / Engines

4 seats · 1 engine

ADS-B equipped

Yes — Mode-S ADA897

Registrant of record

KUHAGEN GARTH H

Source: FAA Aircraft Registry (releasable master file).

Aircraft involved

N9798U GRUM AMER AA5A 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

GRUM AMER AA5A · N9798U

Damage

Substantial

Craft type

Airplane

Classification

Accident

Light condition

Dawn

Weather

VMC

Phase of flight

EE

Operator type

Personal/private

Airport

BUCHANAN FIELD

Kind of flying

B0

Weather at impact

Sky

BROKEN

Wind

260° / 11 kt

Aircraft history

Serial number

000AA5A-0198

Total time

303 hrs

Pilot

Certificate

Commercial

Total hours

515

Age

25

Cause factors

64/A/25 A
PILOT IN COMMAND IMPROPER LEVEL OFF Cause — pilot/personnel action
64/J/28 J
PILOT IN COMMAND IMPROPER COMPENSATION FOR WIND CONDITIONS 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 1794. Source file NTSB_1977_3_1794.txt. Modern CAROL record on data.ntsb.gov ↗.

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