Atlas / NTSB / CHI78FEI21

NTSB CAROL · Event

Event CHI78FEI21

1978-06-20 MENTOR, Ohio, United States None 1 aircraft Status: Completed

Aircraft involved

N86688 Hiller UH12L4 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

HILLER UH12L4 · N86688

Damage

Substantial

Craft type

Balloon

Classification

Accident

Light condition

Dawn

Weather

VMC

Phase of flight

D1

Operator type

E

Kind of flying

CJ

Weather at impact

Sky

CLEAR

Aircraft history

Serial number

000000002547

Total time

1,337 hrs

Pilot

Certificate

Commercial

Total hours

4,239

Age

38

Investigator remarks

ROTOR RPM GAGE FAILED AT 300FT AGL.

Cause factors

74/C/J0 C
POWERPLANT POWER INDICATORS 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 4290. Source file NTSB_1978_3_4290.txt. Modern CAROL record on data.ntsb.gov ↗.

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