Skip to content

Atlas / NTSB / CHI67A0074

NTSB CAROL · Event

Event CHI67A0074

1966-12-12 DOWAGIAC, Michigan, United States Fatal 1 aircraft Status: Completed

Registry · N24133

FAA Aircraft Registry record.

Make / Model

PIPER PA-38-112

Year of manufacture

1979

Engine

LYCOMING 0-235 SERIES (115 hp)

Seats / Engines

2 seats · 1 engine

Last airworthiness date

19790614

ADS-B equipped

Yes — Mode-S A23693

Registrant of record

PHELPS CHARLES R

Source: FAA Aircraft Registry (releasable master file).

Aircraft involved

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

BENSEN B8-M · N24133

Damage

Destroyed

Craft type

I

Classification

Accident

Light condition

Dawn

Weather

VMC

Phase of flight

D1

Operator type

D

Airport

CASS COUNTY

Kind of flying

B0

Weather at impact

Sky

CLEAR

Wind

360° / 4 kt

Temp

30° F

Aircraft history

Total time

15 hrs

Pilot

Certificate

Airline transport

Total hours

18

Age

44

Probable cause (from PRE1982.MDB)

DESIGN INSTRUCTIONS SPECIFIED.BLADE FAILD DOWNWRD

Investigator remarks

IT WAS NOTED THAT THE LDG GR WAS MORE RIGID THAN

Cause factors

  • 78/C/AA C
    ROTORCRAFT MAIN ROTOR BLADES Cause
  • 88/C/94 C
    MISCELLANEOUS ACTS,CONDITIONS OVERLOAD FAILURE Cause
  • 88/J/49 J
    MISCELLANEOUS ACTS,CONDITIONS SEPARATION IN FLIGHT Joint cause

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 1174. Source file NTSB_1966_2_1174.txt. Modern CAROL record on data.ntsb.gov ↗.