Atlas / NTSB / FTW73FQG24

NTSB CAROL · Event

Event FTW73FQG24

1972-11-26 SONORA, Texas, United States None 1 aircraft Status: Completed

Registry · N620TW

FAA Aircraft Registry record.

Make / Model

BEECH E-90

Year of manufacture

1974

Engine

U/A CANADA PT6A-27-28 (680 hp)

Seats / Engines

10 seats · 2 engines

Last airworthiness date

19740415

ADS-B equipped

Yes — Mode-S A817FB

Registrant of record

STREGA VENTURES LLC

Source: FAA Aircraft Registry (releasable master file).

Aircraft involved

N620TW AERO COMDR 500-B 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

AERO COMDR 500-B · N620TW

Damage

Substantial

Craft type

Airplane

Classification

Accident

Light condition

Dusk

Weather

VMC

Phase of flight

D1

Operator type

Business

Airport

SONORA

Kind of flying

B3

Weather at impact

Sky

CLEAR

Wind

350° / 6 kt

Temp

50° F

Aircraft history

Serial number

0500B-127813

Total time

7,459 hrs

Pilot

Certificate

GA (GA)

Total hours

6,148

Age

42

Probable cause (from PRE1982.MDB)

WAS FEATHERED.

Investigator remarks

L ENG FAILED INTERNALLY,NO TEARDOWN INSP. R ENG

Cause factors

74/C/KA C
POWERPLANT POWERPLANT FAILURE FOR UNDETERMINED REASONS Cause
64/C/44 C
PILOT IN COMMAND SPONTANEOUS-IMPROPER ACTION Cause
88/C/07 C
MISCELLANEOUS ACTS,CONDITIONS IMPROPER EMERGENCY PROCEDURES Cause
88/C/08 C
MISCELLANEOUS ACTS,CONDITIONS FEATHERED WRONG ENGINE Cause
88/B/DG B
MISCELLANEOUS ACTS,CONDITIONS INTENTIONAL WHEELS-UP

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 3814. Source file NTSB_1972_3_3814.txt. Modern CAROL record on data.ntsb.gov ↗.

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