Atlas / NTSB / CHI72DLQ34

NTSB CAROL · Event

Event CHI72DLQ34

1972-03-19 HAZARD, Kentucky, United States None 1 aircraft Status: Completed

Registry · N929B

FAA Aircraft Registry record.

Make / Model

BELL 47D1

TCDS

H-1 · SCOTT'S-BELL 47 INC

Engine

FRANKLIN 6V 350 SERIES (235 hp)

Seats / Engines

3 seats · 1 engine

Last airworthiness date

19690521

ADS-B equipped

Yes — Mode-S ACDFB2

Registrant of record

VALIANT AIR COMMAND INC

Source: FAA Aircraft Registry (releasable master file).

Aircraft involved

N929B Bell 47D1 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 47D1 · N929B

Damage

Substantial

Craft type

Balloon

Classification

Accident

Light condition

Dawn

Weather

VMC

Phase of flight

DD

Operator type

Part 135 (air taxi/commuter)

Kind of flying

CB

Weather at impact

Sky

CLEAR

Aircraft history

Serial number

000000000647

Total time

5,518 hrs

Pilot

Certificate

DA (DA)

Total hours

2,300

Age

24

Probable cause (from PRE1982.MDB)

SHOULD HAVE BEEN. ROLLED DWN MT. LATER VANDALIZED.

Investigator remarks

RUSTY PLUG FOUND IN CARB BASE WHERE QUICK DRAIN

Cause factors

64/C/29 C
PILOT IN COMMAND INADEQUATE PREFLIGHT PREPARATION AND/OR PLANNING Cause
68/C/D6 C
PERSONNEL INADEQUATE MAINTENANCE AND INSPECTION Cause
88/C/AD C
MISCELLANEOUS ACTS,CONDITIONS UNAPPROVED MODIFICATION Cause
88/C/87 C
MISCELLANEOUS ACTS,CONDITIONS WATER IN FUEL Cause
83/B/F B
TERRAIN ROUGH/UNEVEN

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 2988. Source file NTSB_1972_3_2988.txt. Modern CAROL record on data.ntsb.gov ↗.

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