NTSB CAROL · Event
Event DEN80FA060
Registry · N99478
FAA Aircraft Registry record.
Make / Model
BELL UH-1B
Year of manufacture
1963 · 17 years old at event
Engine
LYCOMING T-53 SERIES (1150 hp)
Seats / Engines
6 seats · 1 engine
Last airworthiness date
19950104
ADS-B equipped
Yes — Mode-S ADE4ED
Registrant of record
VF99478 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
BELL UH-1B · N99478
Damage
Substantial
Craft type
Balloon
Classification
Accident
Light condition
Dawn
Weather
VMC
Phase of flight
C2
Operator type
D
Kind of flying
CK
Weather at impact
Sky
CLEAR
Temp
70° F
Aircraft history
Serial number
000000000858
Total time
3,787 hrs
Pilot
Certificate
Commercial
Total hours
6,150
Age
32
Cause factors
- 68/C/D2 C PERSONNEL IMPROPERLY SERVICED AIRCRAFT (GROUND CREW) Cause
- 78/C/BH C ROTORCRAFT TAIL ROTOR GEAR BOX Cause
- 88/C/80 C MISCELLANEOUS ACTS,CONDITIONS LACK OF LUBRICATION-SPECIFIC PART,NOT SYSTEM 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 3697.
Source file
NTSB_1980_3_3697.txt.
Modern CAROL record on
data.ntsb.gov ↗.
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