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Atlas / NTSB / CHI81IA021

NTSB CAROL · Event

Event CHI81IA021

1981-01-17 CHICAGO, Illinois, United States None 1 aircraft Status: Completed

Registry · N312BA

FAA Aircraft Registry record.

Make / Model

CIRRUS DESIGN SR20

Seats / Engines

4 seats · 1 engine

ADS-B equipped

Yes — Mode-S A34E59

Registrant of record

AIRCRAFT PARTNER HOLDINGS INC TRUSTEE

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

BEECH 99 · N312BA

Damage

Minor

Craft type

Airplane

Classification

C

Light condition

Dawn

Weather

VMC

Phase of flight

EE

Operator type

E

Airport

CHICAGO O'HARE

Kind of flying

CL

Weather at impact

Sky

SCATTERED-ABOVE 1000 FEET

Wind

240° / 12 kt

Temp

29° F

Aircraft history

Serial number

00000000U-13

Total time

23,822 hrs

Pilot

Certificate

DA (DA)

Total hours

16,082

Age

53

Probable cause (from PRE1982.MDB)

EXTEND L GR.

Investigator remarks

WHEEL FRACTURED AT SCRIBE MARK AT VALVE STEM.UN

Cause factors

  • 68/A/D4 A
    PERSONNEL INADEQUATE INSPECTION OF AIRCRAFT (MAINTENANCE PERSONNEL) Cause — pilot/personnel action
  • 70/A/CF A
    AIRFRAME WHEELS,TIRES,AXLES Cause — pilot/personnel action
  • 88/A/55 A
    MISCELLANEOUS ACTS,CONDITIONS CORRODED/CORROSION Cause — pilot/personnel action
  • 88/A/95 A
    MISCELLANEOUS ACTS,CONDITIONS MATERIAL FAILURE Cause — pilot/personnel action
  • 70/A/CB A
    AIRFRAME NORMAL RETRACTION/EXTENSION ASSEMBLY Cause — pilot/personnel action
  • 88/A/CD A
    MISCELLANEOUS ACTS,CONDITIONS JAMMED 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 0033. Source file NTSB_1981_5_0033.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 ↗