Atlas / NTSB / ANC76FAG62

NTSB CAROL · Event

Event ANC76FAG62

1975-11-04 ANCHORAGE, Alaska, United States None 1 aircraft Status: Completed

Registry · N6301V

FAA Aircraft Registry record.

Make / Model

HELIO H-250

Year of manufacture

1965 · 10 years old at event

Engine

LYCOMING 0-540 SERIES (250 hp)

Seats / Engines

6 seats · 1 engine

Last airworthiness date

19651126

ADS-B equipped

Yes — Mode-S A8404B

Registrant of record

VALLEY RIVER LEASING INC

Source: FAA Aircraft Registry (releasable master file).

Aircraft involved

N6301V HELIO ACFT H-250 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

HELIO ACFT H-250 · N6301V

Damage

Substantial

Craft type

Airplane

Classification

Accident

Light condition

Dawn

Weather

VMC

Phase of flight

Takeoff — initial climb (C1)

Operator type

D

Airport

MERRILL FIELD

Kind of flying

B0

Weather at impact

Sky

SCATTERED-ABOVE 1000 FEET

Wind

030° / 6 kt

Temp

12° F

Aircraft history

Serial number

000000002524

Total time

78 hrs

Pilot

Certificate

Commercial

Total hours

2,450

Age

34

Probable cause (from PRE1982.MDB)

MISSING.

Investigator remarks

COTTER KEY TO RETAIN CARB FLOAT SHAFT TO BRACKET

Cause factors

74/C/CG C
POWERPLANT CARBURETOR Cause
88/C/29 C
MISCELLANEOUS ACTS,CONDITIONS IMPROPERLY SECURED Cause
88/C/CB C
MISCELLANEOUS ACTS,CONDITIONS IMPROPERLY INSTALLED Cause
68/C/D6 C
PERSONNEL INADEQUATE MAINTENANCE AND INSPECTION Cause
83/K/F K
TERRAIN ROUGH/UNEVEN Joint factor
88/K/94 K
MISCELLANEOUS ACTS,CONDITIONS OVERLOAD FAILURE Joint factor

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 4024. Source file NTSB_1975_3_4024.txt. Modern CAROL record on data.ntsb.gov ↗.

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