Atlas / NTSB / CHI73AC015

NTSB CAROL · Event

Event CHI73AC015

1972-08-13 CHICAGO, Illinois, United States None 1 aircraft Status: Completed

Registry · N620M

FAA Aircraft Registry record.

Make / Model

HAVEL JOSHUA R SUPER MUSKRAT

Year of manufacture

2020

Engine

LYCOMING O-360 SERIES (180 hp)

Seats / Engines

3 seats · 1 engine

Last airworthiness date

20201204

ADS-B equipped

Yes — Mode-S A81750

Registrant of record

HAVEL JOSHUA R

Source: FAA Aircraft Registry (releasable master file).

Aircraft involved

N620M N.AMERICAN NA-265 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

N.AMERICAN NA-265 · N620M

Damage

Substantial

Craft type

Airplane

Classification

Accident

Light condition

Dawn

Weather

VMC

Phase of flight

EE

Operator type

Business

Airport

MIDWAY

Kind of flying

B3

Weather at impact

Sky

SCATTERED-ABOVE 1000 FEET

Wind

190° / 9 kt

Temp

87° F

Aircraft history

Serial number

0000000262-9

Total time

6,081 hrs

Pilot

Certificate

DA (DA)

Total hours

8,500

Age

47

Probable cause (from PRE1982.MDB)

DWN.

Investigator remarks

LMG TRIGGER ASSY WEAR PREVENTED GR FROM LOCKING

Cause factors

70/A/CM A
AIRFRAME GEAR LOCKING MECHANISM Cause — pilot/personnel action
88/A/95 A
MISCELLANEOUS ACTS,CONDITIONS MATERIAL FAILURE 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 1173. Source file NTSB_1972_3_1173.txt. Modern CAROL record on data.ntsb.gov ↗.

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