Atlas / NTSB / UNK65X0226

NTSB CAROL · Event

Event UNK65X0226

1964-10-10 CHARLESTON, South Carolina, United States None 1 aircraft Status: Completed

Aircraft involved

N7923C CURTISS C-46 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

CURTISS C-46 · N7923C

Damage

Substantial

Craft type

Airplane

Classification

Accident

Light condition

Dawn

Weather

VMC

Phase of flight

Takeoff — initial climb (C1)

Airport

CHARLESTON AFB

Weather at impact

Sky

CLEAR

Wind

010° / 9 kt

Temp

69° F

Aircraft history

Total time

16,025 hrs

Pilot

Certificate

DA (DA)

Total hours

7,891

Age

35

Probable cause (from PRE1982.MDB)

UNREPLACED AFTER PRIOR USE.

Investigator remarks

EXTING SYS DIDNT WORK.TRIPPED CIRCUIT BR.& SQUIB

Cause factors

74/C/AD C
POWERPLANT CYLINDER ASSEMBLY Cause
74/C/AC C
POWERPLANT MASTER AND CONNECTING RODS Cause
88/C/95 C
MISCELLANEOUS ACTS,CONDITIONS MATERIAL FAILURE Cause
88/K/51 K
MISCELLANEOUS ACTS,CONDITIONS FIRE IN ENGINE Joint factor
75/K/HA K
SYSTEMS POWERPLANT Joint factor
88/K/AL K
MISCELLANEOUS ACTS,CONDITIONS CIRCUIT BREAKER POPPED Joint factor
68/K/D0 K
PERSONNEL IMPROPER MAINTENANCE (MAINTENANCE PERSONNEL) Joint factor

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 1 0051. Source file NTSB_1964_1_0051.txt. Modern CAROL record on data.ntsb.gov ↗.

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