Atlas / NTSB / ANC72DAA08

NTSB CAROL · Event

Event ANC72DAA08

1971-08-29 BIG DELTA, Alaska, United States Minor 1 aircraft Status: Completed

Registry · N1121W

FAA Aircraft Registry record.

Make / Model

PIPER PA-12

Year of manufacture

1947 · 24 years old at event

Engine

LYCOMING 0-235 SERIES (115 hp)

Seats / Engines

3 seats · 1 engine

Last airworthiness date

19570815

ADS-B equipped

Yes — Mode-S A03631

Registrant of record

DELEON JOSEPH M

Source: FAA Aircraft Registry (releasable master file).

Aircraft involved

N1121W Piper PA-12 Minor

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

PIPER PA-12 · N1121W

Damage

Substantial

Craft type

Airplane

Classification

Accident

Light condition

Dawn

Weather

VMC

Phase of flight

Takeoff — initial climb (C1)

Operator type

Personal/private

Kind of flying

B0

Weather at impact

Sky

CLEAR

Wind

020° / 4 kt

Temp

60° F

Aircraft history

Serial number

000000000051

Total time

1,751 hrs

Pilot

Certificate

Commercial — instrument

Total hours

67

Age

29

Probable cause (from PRE1982.MDB)

D,LOWER TREES,BRUSH OTR END.TOOK OFF TWD HI TREES.

Investigator remarks

FLOAT EQPD.LAKE 2000FT LONG,50-70FT TREES ONE EN

Cause factors

64/A/29 A
PILOT IN COMMAND INADEQUATE PREFLIGHT PREPARATION AND/OR PLANNING Cause — pilot/personnel action
83/A/I A
TERRAIN HIGH OBSTRUCTIONS Cause — pilot/personnel action

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 3329. Source file NTSB_1971_3_3329.txt. Modern CAROL record on data.ntsb.gov ↗.

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