Atlas / NTSB / FTW74DPD14

NTSB CAROL · Event

Event FTW74DPD14

1973-07-22 SPRINGTOWN, Texas, United States None 1 aircraft Status: Completed

Aircraft involved

N8145H HILLER ACFT UH-12A None

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

HILLER ACFT UH-12A · N8145H

Damage

Substantial

Craft type

Balloon

Classification

Accident

Light condition

Dawn

Weather

VMC

Phase of flight

D1

Operator type

Part 135 (air taxi/commuter)

Kind of flying

DD

Weather at impact

Sky

CLEAR

Wind

170° / 5 kt

Aircraft history

Serial number

000000000145

Total time

3,041 hrs

Pilot

Certificate

Commercial

Total hours

6,142

Age

41

Probable cause (from PRE1982.MDB)

ED DRIVE SHAFT.LND ON SLOPING PLOWED FLD.HIT STUMP

Investigator remarks

PIECE OF COTTER PIN LODGED IN PUMP HOUSING,SHEAR

Cause factors

74/C/CH C
POWERPLANT PUMPS Cause
88/C/CP C
MISCELLANEOUS ACTS,CONDITIONS SHEARED Cause
84/C/G C
MISCELLANEOUS FOREIGN MATERIAL AFFECTING NORMAL OPERATIONS Cause
88/C/96 C
MISCELLANEOUS ACTS,CONDITIONS FUEL STARVATION Cause
83/B/Y B
TERRAIN OTHER

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 2365. Source file NTSB_1973_3_2365.txt. Modern CAROL record on data.ntsb.gov ↗.

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