NTSB CAROL · Event
Event SEA71FYC42
Registry · N8178H
FAA Aircraft Registry record.
Make / Model
HILLER UH-12A
Year of manufacture
1950 · 21 years old at event
TCDS
6H1 · SIAM HILLER HOLDINGS INC
Engine
FRANKLIN 6V-335 SERIES (200 hp)
Seats / Engines
4 seats · 1 engine
Last airworthiness date
19840419
ADS-B equipped
Yes — Mode-S AB26D5
Registrant of record
ROTOR WING NUTS LLC
Source: FAA Aircraft Registry (releasable master file).
Aircraft involved
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 UH12A · N8178H
Damage
Destroyed
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
SCATTERED-ABOVE 1000 FEET
Aircraft history
Serial number
000000000178
Pilot
Certificate
Flight instructor (CFI)
Total hours
2,000
Age
27
Investigator remarks
HIT PWR LINES 50FT AGL.
Cause factors
- 64/A/15 A PILOT IN COMMAND FAILED TO SEE AND AVOID OBJECTS OR OBSTRUCTIONS Cause — pilot/personnel action
- 83/J/I J TERRAIN HIGH OBSTRUCTIONS Joint 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 0550.
Source file
NTSB_1971_3_0550.txt.
Modern CAROL record on
data.ntsb.gov ↗.
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