Atlas / NTSB / ANC76DAH49

NTSB CAROL · Event

Event ANC76DAH49

1976-08-08 MCCARTHY, Alaska, United States None 1 aircraft Status: Completed

Registry · N3391Z

FAA Aircraft Registry record.

Make / Model

PIPER PA-18-150

Year of manufacture

1960 · 16 years old at event

Engine

LYCOMING 0-320 SERIES (180 hp)

Seats / Engines

2 seats · 1 engine

Last airworthiness date

19600118

ADS-B equipped

Yes — Mode-S A3B9D1

Registrant of record

THOMPSON MICHAEL M

Source: FAA Aircraft Registry (releasable master file).

Aircraft involved

N3391Z Piper PA-18 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

PIPER PA-18 · N3391Z

Damage

Substantial

Craft type

Airplane

Classification

Accident

Light condition

Dawn

Weather

VMC

Phase of flight

Cruise climb (DB)

Operator type

D

Kind of flying

B0

Weather at impact

Sky

UNKNOWN/NOT REPORTED

Aircraft history

Serial number

0000018-7276

Total time

2,500 hrs

Pilot

Certificate

Commercial

Total hours

650

Age

34

Probable cause (from PRE1982.MDB)

NTO RIVER.

Investigator remarks

DRAGGED LDG SITE,APPLIED PWR ABRUPTLY. SETTLED I

Cause factors

64/C/21 C
PILOT IN COMMAND IMPROPER OPERATION OF POWERPLANT & POWERPLANT CONTROLS Cause
88/C/34 C
MISCELLANEOUS ACTS,CONDITIONS ENGINE LOADED UP Cause
64/B/49 B
PILOT IN COMMAND MISJUDGED SPEED AND ALTITUDE
88/K/88 K
MISCELLANEOUS ACTS,CONDITIONS AIRCRAFT CAME TO REST IN WATER 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 3147. Source file NTSB_1976_3_3147.txt. Modern CAROL record on data.ntsb.gov ↗.

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