Atlas / NTSB / FTW79IA103

NTSB CAROL · Event

Event FTW79IA103

1979-08-30 FRIENDSWOOD, Texas, United States None 1 aircraft Status: Completed

Aircraft involved

N421HC Cessna 421B 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

CESSNA 421B · N421HC

Damage

Minor

Craft type

Airplane

Classification

C

Light condition

Dawn

Weather

VMC

Phase of flight

Takeoff — initial climb (C1)

Operator type

D

Airport

CLOVER FIELD

Kind of flying

B1

Weather at impact

Sky

UNKNOWN/NOT REPORTED

Temp

91° F

Aircraft history

Serial number

000421B-0116

Total time

4,100 hrs

Pilot

Certificate

DA (DA)

Total hours

3,400

Age

24

Probable cause (from PRE1982.MDB)

WERE 5/16IN,CORRECT SPACERS ARE SHIMS .010IN.

Investigator remarks

WASHERS USED AS SPACERS BETWEEN ENG & OIL COOLER

Cause factors

68/A/D0 A
PERSONNEL IMPROPER MAINTENANCE (MAINTENANCE PERSONNEL) Cause — pilot/personnel action
74/A/DI A
POWERPLANT SEALS AND GASKETS Cause — pilot/personnel action
88/A/46 A
MISCELLANEOUS ACTS,CONDITIONS WRONG PART Cause — pilot/personnel action
88/A/AJ A
MISCELLANEOUS ACTS,CONDITIONS LEAK/LEAKAGE 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 0019. Source file NTSB_1979_5_0019.txt. Modern CAROL record on data.ntsb.gov ↗.

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