Atlas / NTSB / OAK69F0318

NTSB CAROL · Event

Event OAK69F0318

1969-05-11 LAS VEGAS, Nevada, United States None 1 aircraft Status: Completed

Registry · N1335X

FAA Aircraft Registry record.

Make / Model

BELL 47G-3B-1

Year of manufacture

1966 · 3 years old at event

TCDS

2H3 · SCOTT'S-BELL 47 INC

Engine

LYCOMING TVO-435-GIA (280 hp)

Seats / Engines

3 seats · 1 engine

Last airworthiness date

20050608

ADS-B equipped

Yes — Mode-S A08973

Registrant of record

HENDRICKSON FLYING SERVICE INC

Source: FAA Aircraft Registry (releasable master file).

Aircraft involved

N1335X Bell 47G3B1 None

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 47G3B1 · N1335X

Damage

Substantial

Craft type

Balloon

Classification

Accident

Light condition

Dawn

Weather

VMC

Phase of flight

D4

Operator type

Public use

Kind of flying

CK

Weather at impact

Sky

CLEAR

Wind

360° / 5 kt

Temp

75° F

Aircraft history

Total time

1,260 hrs

Pilot

Certificate

Commercial

Total hours

2,763

Age

26

Probable cause (from PRE1982.MDB)

STE GATE TO WARP AND TURBO CHARGER INEFFECTIVE.

Investigator remarks

IMPROPERLY ADJUSTED DENSITY CONTROLLER CAUSED WA

Cause factors

74/C/AY C
POWERPLANT OTHER Cause
88/C/CW C
MISCELLANEOUS ACTS,CONDITIONS WARPED Cause
88/C/47 C
MISCELLANEOUS ACTS,CONDITIONS IMPROPER ALIGNMENT/ADJUSTMENT Cause
83/B/I B
TERRAIN HIGH OBSTRUCTIONS

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 1751. Source file NTSB_1969_3_1751.txt. Modern CAROL record on data.ntsb.gov ↗.

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