NTSB CAROL · Event
Event SEA74DTI14
Registry · N178B
FAA Aircraft Registry record.
Make / Model
GULFSTREAM AEROSPACE G1159B
Year of manufacture
1973 · 0 years old at event
Engine
ROLLS-ROYC SPEY 511-8
Seats / Engines
22 seats · 2 engines
Last airworthiness date
20230712
ADS-B equipped
Yes — Mode-S A136FE
Registrant of record
MISSILE DEFENSE AGENCY (MDA)
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
BELL 47G-3 · N178B
Damage
Substantial
Craft type
Balloon
Classification
Accident
Light condition
Dawn
Weather
VMC
Phase of flight
EH
Operator type
Public use
Airport
JOHNSON-BELL FLD
Kind of flying
A3
Weather at impact
Sky
OVERCAST
Wind
040° / — kt
Temp
36° F
Aircraft history
Serial number
000000000032
Total time
5,000 hrs
Pilot
Certificate
DA (DA)
Total hours
7,858
Age
32
Investigator remarks
STUD PRCTCNG SLOPE LNDS TO HELIPORT,5 DEG SLP.
Cause factors
- 64/A/02 A PILOT IN COMMAND ATTEMPTED OPERATION BEYOND EXPERIENCE/ABILITY LEVEL Cause — pilot/personnel action
- 64/A/56 A PILOT IN COMMAND MISUNDERSTANDING OF ORDERS OR INSTRUCTIONS Cause — pilot/personnel action
- 68/J/C0 J PERSONNEL INADEQUATE SUPERVISION OF FLIGHT Joint cause
- 83/J/A J TERRAIN WET,SOFT GROUND 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 4034.
Source file
NTSB_1973_3_4034.txt.
Modern CAROL record on
data.ntsb.gov ↗.
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