Atlas / NTSB / CHI74FEA04

NTSB CAROL · Event

Event CHI74FEA04

1973-07-13 DANA, Indiana, United States Serious 1 aircraft Status: Completed

Aircraft involved

N8416E Bell 47G-3 Serious

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 47G-3 · N8416E

Damage

Substantial

Craft type

Balloon

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

000000002600

Total time

2,500 hrs

Pilot

Certificate

Flight instructor (CFI)

Total hours

4,091

Age

31

Probable cause (from PRE1982.MDB)

OILY.

Investigator remarks

ENG LOST PWR,SETTLED INTO TREES. PLUGS FOULED &

Cause factors

74/C/BC C
POWERPLANT SPARK PLUG Cause
88/C/AR C
MISCELLANEOUS ACTS,CONDITIONS CARBON DEPOSITS Cause
68/C/D6 C
PERSONNEL INADEQUATE MAINTENANCE AND INSPECTION Cause
83/B/I B
TERRAIN HIGH OBSTRUCTIONS

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 2109. Source file NTSB_1973_3_2109.txt. Modern CAROL record on data.ntsb.gov ↗.

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