NTSB CAROL · Event
Event UNK65X0456
Registry · N11H
FAA Aircraft Registry record.
Make / Model
HOEFFEL JAN HOEFFEL SX300
Engine
LYCOMING IO-540 SER (300 hp)
Seats / Engines
2 seats · 1 engine
Last airworthiness date
19930629
ADS-B equipped
Yes — Mode-S A02A89
Registrant of record
GONZALEZ RICHARD J
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 47B3G · N11H
Damage
Substantial
Craft type
Balloon
Classification
Accident
Light condition
Dawn
Weather
VMC
Phase of flight
EI
Operator type
Personal/private
Airport
ONTARIO INTL
Kind of flying
B1
Weather at impact
Sky
SCATTERED-ABOVE 1000 FEET
Aircraft history
Total time
6,982 hrs
Pilot
Certificate
Commercial
Total hours
399
Age
42
Probable cause (from PRE1982.MDB)
PILOT-IMPROPERLY EXECUTED AUTOROTATIVE LANDING
Cause factors
- 84/A/J A MISCELLANEOUS WRITTEN CAUSE Cause — pilot/personnel action
- 64/J/18 J PILOT IN COMMAND FAILED TO MAINTAIN ADEQUATE ROTOR R.P.M. Joint cause
- 64/J/53 J PILOT IN COMMAND MISJUDGED ALTITUDE Joint cause
- 88/J/85 J MISCELLANEOUS ACTS,CONDITIONS SIMULATED CONDITIONS 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
2 0822.
Source file
NTSB_1964_2_0822.txt.
Modern CAROL record on
data.ntsb.gov ↗.
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