Atlas / NTSB / MKC77FTG10

NTSB CAROL · Event

Event MKC77FTG10

1977-07-15 GRAND FORKS, North Dakota, United States Minor 1 aircraft Status: Completed

Registry · N59249

FAA Aircraft Registry record.

Make / Model

BOEING A75N1

Year of manufacture

1942 · 35 years old at event

Engine

P&W R-985 SERIES (450 hp)

Seats / Engines

2 seats · 1 engine

Last airworthiness date

19560619

ADS-B equipped

Yes — Mode-S A7A7DB

Registrant of record

JOHNSON LESLIE R

Source: FAA Aircraft Registry (releasable master file).

Aircraft involved

N59249 Boeing A75N1 Minor

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

BOEING A75N1 · N59249

Damage

Substantial

Craft type

Airplane

Classification

Accident

Light condition

Dawn

Weather

VMC

Phase of flight

DK

Operator type

Part 135 (air taxi/commuter)

Kind of flying

CA

Weather at impact

Sky

CLEAR

Aircraft history

Serial number

0000075-3184

Total time

3,262 hrs

Pilot

Certificate

Commercial

Total hours

4,262

Age

52

Investigator remarks

BOTH MAGNETOS WERE FOUND INOPERATIVE

Cause factors

74/C/BA C
POWERPLANT MAGNETOS Cause
88/C/95 C
MISCELLANEOUS ACTS,CONDITIONS MATERIAL FAILURE Cause
68/C/D0 C
PERSONNEL IMPROPER MAINTENANCE (MAINTENANCE PERSONNEL) 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 1738. Source file NTSB_1977_3_1738.txt. Modern CAROL record on data.ntsb.gov ↗.

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