Atlas / NTSB / MIA74FLA08

NTSB CAROL · Event

Event MIA74FLA08

1973-08-05 DESTIN, Florida, United States None 1 aircraft Status: Completed

Registry · N6579D

FAA Aircraft Registry record.

Make / Model

BELL 47D1

TCDS

H-1 · SCOTT'S-BELL 47 INC

Engine

FRANKLIN 6VS-335 SER (240 hp)

Seats / Engines

3 seats · 1 engine

Last airworthiness date

19640318

ADS-B equipped

Yes — Mode-S A8AA52

Registrant of record

IXL INC

Source: FAA Aircraft Registry (releasable master file).

Aircraft involved

N6579D Bell 47D-1 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

BELL 47D-1 · N6579D

Damage

Substantial

Craft type

Balloon

Classification

Accident

Light condition

Dawn

Weather

VMC

Phase of flight

D1

Operator type

Personal/private

Kind of flying

CE

Weather at impact

Sky

CLEAR

Wind

270° / 10 kt

Temp

88° F

Aircraft history

Serial number

000000000895

Total time

2,706 hrs

Pilot

Certificate

Commercial

Total hours

4,500

Age

40

Probable cause (from PRE1982.MDB)

CAUSE NOT DTMND.MECH THOUGHT RESULT OF DETONATION.

Investigator remarks

HOLE BURNED THRU TOP OF PISTON,BURNED EXH VALVE.

Cause factors

74/C/AE C
POWERPLANT PISTON,PISTON RINGS Cause
74/C/AF C
POWERPLANT VALVE ASSEMBLIES Cause
88/C/AF C
MISCELLANEOUS ACTS,CONDITIONS ACTION,LACK OF Cause
83/K/K K
TERRAIN SANDY 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 2777. Source file NTSB_1973_3_2777.txt. Modern CAROL record on data.ntsb.gov ↗.

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