Skip to content

Atlas / NTSB / DIA70D0004

NTSB CAROL · Event

Event DIA70D0004

1969-06-16 FRONT ROYAL, Virginia, United States None 1 aircraft Status: Completed

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

CESSNA 150 · N4099J

Damage

Substantial

Craft type

Airplane

Classification

Accident

Light condition

Dawn

Weather

VMC

Phase of flight

Takeoff — initial climb (C1)

Operator type

D

Airport

FRONT ROYAL

Kind of flying

B0

Weather at impact

Sky

CLEAR

Wind

270° / 5 kt

Temp

65° F

Aircraft history

Total time

1,637 hrs

Pilot

Certificate

Commercial

Total hours

14,000

Age

44

Probable cause (from PRE1982.MDB)

FAILURE OF BUSHING RETAINERS.CYL NOT IDENTIFIED.

Investigator remarks

ROCKER ARMS AND SHAFT SEPARATED FROM CYL DUE TO

Cause factors

  • 74/C/AD C
    POWERPLANT CYLINDER ASSEMBLY Cause
  • 88/C/95 C
    MISCELLANEOUS ACTS,CONDITIONS MATERIAL FAILURE Cause
  • 88/K/94 K
    MISCELLANEOUS ACTS,CONDITIONS OVERLOAD FAILURE 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 1514. Source file NTSB_1969_3_1514.txt. Modern CAROL record on data.ntsb.gov ↗.

Related research

What the literature says.

Academic papers and agency reports matching this event's aircraft type. Sourced from NASA NTRS, NTSB Safety Studies, FAA CAMI, AOPA Air Safety Institute, Embry-Riddle Scholarly Commons, arXiv, and the Semantic Scholar academic graph.

Browse the full corpus — academia portal ↗