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Atlas / NTSB / CHI81IA048

NTSB CAROL · Event

Event CHI81IA048

1981-04-11 CHICAGO, Illinois, 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

N AMERICAN 265-65 · N651GL

Damage

Minor

Craft type

Airplane

Classification

C

Light condition

Dawn

Weather

VMC

Phase of flight

D0

Operator type

Business

Kind of flying

B3

Weather at impact

Sky

UNKNOWN/NOT REPORTED

Aircraft history

Serial number

000000265-36

Total time

359 hrs

Pilot

Certificate

DA (DA)

Total hours

7,150

Age

39

Probable cause (from PRE1982.MDB)

CEWAY SURFACE.

Investigator remarks

RT ENG #5 BEARING FAILED DUE FATIGUE IN OUTER RA

Cause factors

  • 74/A/MI A
    POWERPLANT BEARING,ROTOR SHAFT Cause — pilot/personnel action
  • 88/A/36 A
    MISCELLANEOUS ACTS,CONDITIONS FATIGUE FRACTURE 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 5 0030. Source file NTSB_1981_5_0030.txt. Modern CAROL record on data.ntsb.gov ↗.