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UNK65X0456

1964-10-27 · ONTARIO, California, United States · None · 1 aircraft · Status: Completed

N11H has since been reassigned. It is now registered to a different aircraft (HOEFFEL JAN HOEFFEL SX300), which was not involved in this event.

Aircraft involved

Historical record (pre-1982 coded fields)

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).

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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