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Atlas / NTSB / LAX81FA093

NTSB CAROL · Event

Event LAX81FA093

1981-05-29 BEAUMONT, California, United States Fatal 1 aircraft Status: Completed

Registry · N874

FAA Aircraft Registry record.

Make / Model

BELL UH-1H

Year of manufacture

1965 · 16 years old at event

Engine

LYCOMING T53L-703 (1400 hp)

Seats / Engines

15 seats · 1 engine

Last airworthiness date

20110107

ADS-B equipped

Yes — Mode-S AC0531

Registrant of record

HIGH PERFORMANCE HELICOPTERS CORP

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

SIKORSKY S-55 · N874

Damage

Destroyed

Craft type

Balloon

Classification

Accident

Light condition

Dusk

Weather

IMC

Phase of flight

D1

Operator type

E

Kind of flying

CI

Weather at impact

Sky

PARTIAL OBSCURATION

Wind

260° / 2 kt

Temp

63° F

Aircraft history

Serial number

0000055-1004

Total time

10,101 hrs

Pilot

Certificate

GA (GA)

Total hours

7,013

Age

44

Probable cause (from PRE1982.MDB)

UT COULD NOT AGREE ON LVL OF ALC PRIOR TO ACCIDENT

Investigator remarks

4 SEP STUDIES DETERMINED BLD ALC LVL APPX .08% B

Cause factors

  • 64/A/04 A
    PILOT IN COMMAND CONTINUED VFR FLIGHT INTO ADVERSE WEATHER CONDITIONS Cause — pilot/personnel action
  • 82/J/A J
    WEATHER LOW CEILING Joint cause
  • 82/J/C J
    WEATHER FOG 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 2413. Source file NTSB_1981_3_2413.txt. Modern CAROL record on data.ntsb.gov ↗.