Atlas / NTSB / OAK72AP006

NTSB CAROL · Event

Event OAK72AP006

1971-08-20 GRASS VALLEY, California, United States Fatal 1 aircraft Status: Completed

Registry · N2125X

FAA Aircraft Registry record.

Make / Model

CESSNA 337

Year of manufacture

1965 · 6 years old at event

Engine

CONT MOTOR IO-360 SER (300 hp)

Seats / Engines

6 seats · 2 engines

Last airworthiness date

19650124

ADS-B equipped

Yes — Mode-S A1C40D

Registrant of record

MATHEWS WADE

Source: FAA Aircraft Registry (releasable master file).

Aircraft involved

N2125X Cessna 337 Fatal

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

CESSNA 337 · N2125X

Damage

Minor

Craft type

Airplane

Classification

Accident

Light condition

Dawn

Weather

VMC

Phase of flight

Cruise — descent (EF)

Operator type

D

Airport

GRASS VALLEY

Kind of flying

B0

Weather at impact

Sky

CLEAR

Aircraft history

Serial number

0000337-0025

Total time

1,184 hrs

Pilot

Certificate

Commercial — instrument

Total hours

420

Age

62

Probable cause (from PRE1982.MDB)

END OF RWY INTO DITCH.

Investigator remarks

PLT HAD HEART ATTACK ON ROLLOUT,ACFT ROLLED OFF

Cause factors

64/A/64 A
PILOT IN COMMAND INCAPACITATION Cause — pilot/personnel action
88/A/65 A
MISCELLANEOUS ACTS,CONDITIONS PILOT SUFFERED HEART ATTACK 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 4278. Source file NTSB_1971_3_4278.txt. Modern CAROL record on data.ntsb.gov ↗.

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