Atlas / NTSB / SEA76FYC20

NTSB CAROL · Event

Event SEA76FYC20

1975-09-20 BROWNSVILLE, Oregon, United States None 1 aircraft Status: Completed

Aircraft involved

N8108H HILLER ACFT UH-12B 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 ACFT UH-12B · N8108H

Damage

Substantial

Craft type

Balloon

Classification

Accident

Light condition

Dawn

Weather

VMC

Phase of flight

C2

Operator type

Personal/private

Airport

PIONEER VILLA

Kind of flying

A3

Weather at impact

Sky

CLEAR

Wind

180° / 3 kt

Temp

80° F

Aircraft history

Serial number

000000591466

Total time

1,120 hrs

Pilot

Certificate

Commercial — instrument

Total hours

400

Age

43

Probable cause (from PRE1982.MDB)

VERHEAT.T/D ON REAR OF SKID,M/R STRUCK TAILBOOM.

Investigator remarks

CLUTCH PUCKS CHARRED,CLUTCH DRUM DISCOLORED FM O

Cause factors

78/C/BJ C
ROTORCRAFT CLUTCH ASSEMBLY Cause
88/C/CI C
MISCELLANEOUS ACTS,CONDITIONS OVERHEATED Cause
64/B/23 B
PILOT IN COMMAND IMPROPER OPERATION OF FLIGHT CONTROLS

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 3739. Source file NTSB_1975_3_3739.txt. Modern CAROL record on data.ntsb.gov ↗.

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