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Atlas / NTSB / CHI78FEE51

NTSB CAROL · Event

Event CHI78FEE51

1978-07-09 PARK FOREST, Illinois, United States None 1 aircraft Status: Completed

Registry · N9848E

FAA Aircraft Registry record.

Make / Model

SCHWEIZER SGU 2-22E

Year of manufacture

1965 · 13 years old at event

Engine

NONE NONE

Seats / Engines

2 seats · 1 engine

Last airworthiness date

19650902

ADS-B equipped

Yes — Mode-S ADBD75

Registrant of record

ZELLERS CLYDE E

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

SCHWEIZER SGU222 · N9848E

Damage

Substantial

Craft type

C

Classification

Accident

Light condition

Dawn

Weather

VMC

Phase of flight

EB

Operator type

J

Airport

HAEDTLER FIELD

Kind of flying

A1

Weather at impact

Sky

CLEAR

Aircraft history

Serial number

000000000229

Total time

1,387 hrs

Pilot

Certificate

Airline transport

Total hours

6

Age

16

Probable cause (from PRE1982.MDB)

OF TRACTOR NEAR RUNWAY.

Investigator remarks

COLLIDED WITH TRACTOR.UNSAFE CONDITION-OPERATION

Cause factors

  • 64/C/48 C
    PILOT IN COMMAND MISJUDGED DISTANCE AND ALTITUDE Cause
  • 68/L/H1 L
    PERSONNEL FAILURE TO NOTIFY OF UNSAFE COND/AND OR FAILURE TO MARK OBSTRUCTION

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 1832. Source file NTSB_1978_3_1832.txt. Modern CAROL record on data.ntsb.gov ↗.