Atlas / NTSB / UNK64X3406

NTSB CAROL · Event

Event UNK64X3406

1964-08-15 MONROEVILLE, Pennsylvania, United States Serious 1 aircraft Status: Completed

Registry · N98679

FAA Aircraft Registry record.

Make / Model

PIPER J3C-65

Year of manufacture

1946 · 18 years old at event

Engine

CONT MOTOR C90 SERIES (95 hp)

Seats / Engines

2 seats · 1 engine

Last airworthiness date

19580526

ADS-B equipped

Yes — Mode-S ADC4DD

Registrant of record

HINAMAN ARTHUR W

Source: FAA Aircraft Registry (releasable master file).

Aircraft involved

N98679 Piper J3 Serious

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 J3 · N98679

Damage

Substantial

Craft type

Airplane

Classification

Accident

Light condition

Dawn

Weather

VMC

Phase of flight

D7

Operator type

D

Kind of flying

B1

Weather at impact

Sky

SCATTERED-ABOVE 1000 FEET

Aircraft history

Total time

2,300 hrs

Pilot

Certificate

Airline transport

Total hours

35

Age

17

Investigator remarks

IMPROPER OPERATION OF THROTTLE

Cause factors

74/C/KA C
POWERPLANT POWERPLANT FAILURE FOR UNDETERMINED REASONS Cause
88/C/CB C
MISCELLANEOUS ACTS,CONDITIONS IMPROPERLY INSTALLED Cause
83/K/I K
TERRAIN HIGH OBSTRUCTIONS Joint factor
64/K/49 K
PILOT IN COMMAND MISJUDGED SPEED AND ALTITUDE Joint factor
64/1/21 1
PILOT IN COMMAND IMPROPER OPERATION OF POWERPLANT & POWERPLANT CONTROLS Subordinate · 1

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 2 0512. Source file NTSB_1964_2_0512.txt. Modern CAROL record on data.ntsb.gov ↗.

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