Atlas / NTSB / CHI73AEA30

NTSB CAROL · Event

Event CHI73AEA30

1973-03-30 LAFAYETTE, Indiana, United States Minor 1 aircraft Status: Completed

Aircraft involved

N20644 Cessna 172M Minor

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 172M · N20644

Damage

Substantial

Craft type

Airplane

Classification

Accident

Light condition

Dawn

Weather

VMC

Phase of flight

Cruise — level (EA)

Operator type

D

Airport

HALSMER

Kind of flying

B1

Weather at impact

Sky

UNKNOWN/NOT REPORTED

Wind

010° / 6 kt

Temp

58° F

Aircraft history

Serial number

000017261457

Total time

20 hrs

Pilot

Certificate

Airline transport

Total hours

23

Age

49

Probable cause (from PRE1982.MDB)

NGES AND WEEP HOLES TWRD BTM.FUEL TANK COLLAPSED.

Investigator remarks

FUEL TANK CK VALVE INSTLD DWN AND AFT-FLAPPER HI

Cause factors

68/C/J1 C
PERSONNEL INCORRECT FACTORY INSTALLATION Cause
74/C/CJ C
POWERPLANT VENTS,DRAINS,TANK CAPS Cause
88/C/96 C
MISCELLANEOUS ACTS,CONDITIONS FUEL STARVATION Cause
83/B/A B
TERRAIN WET,SOFT GROUND
88/3/AW 3
MISCELLANEOUS ACTS,CONDITIONS FEMALE PILOT Subordinate · 3

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 0708. Source file NTSB_1973_3_0708.txt. Modern CAROL record on data.ntsb.gov ↗.

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