NTSB CAROL · Event
Event MIA68F0042
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
PIPER PA-23 · N5557Y
Damage
Substantial
Craft type
Airplane
Classification
Accident
Light condition
Dawn
Weather
VMC
Phase of flight
EE
Operator type
Business
Airport
BUSH
Kind of flying
B3
Weather at impact
Sky
UNKNOWN/NOT REPORTED
Wind
180° / 4 kt
Temp
86° F
Aircraft history
Total time
917 hrs
Pilot
Certificate
Flight instructor (CFI)
Total hours
9,400
Age
51
Probable cause (from PRE1982.MDB)
N LINE COMMON TO BOTH NORM AND EMER GR EXT SYST.
Investigator remarks
NOSE GEAR FAILED.HYD B NUT X THREADED.HYD LEAK I
Cause factors
- 70/A/CB A AIRFRAME NORMAL RETRACTION/EXTENSION ASSEMBLY Cause — pilot/personnel action
- 70/A/CC A AIRFRAME EMERGENCY/EXTENSION ASSEMBLY Cause — pilot/personnel action
- 88/A/38 A MISCELLANEOUS ACTS,CONDITIONS HYDRAULIC FAILURE Cause — pilot/personnel action
- 75/A/BD A SYSTEMS RESERVOIR,LINES,FITTINGS Cause — pilot/personnel action
- 88/A/CB A MISCELLANEOUS ACTS,CONDITIONS IMPROPERLY INSTALLED Cause — pilot/personnel action
- 88/A/BK A MISCELLANEOUS ACTS,CONDITIONS CROSSED Cause — pilot/personnel action
- 88/A/AJ A MISCELLANEOUS ACTS,CONDITIONS LEAK/LEAKAGE Cause — pilot/personnel action
- 68/A/D0 A PERSONNEL IMPROPER MAINTENANCE (MAINTENANCE PERSONNEL) Cause — pilot/personnel action
- 68/A/D4 A PERSONNEL INADEQUATE INSPECTION OF AIRCRAFT (MAINTENANCE PERSONNEL) 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
3 2229.
Source file
NTSB_1967_3_2229.txt.
Modern CAROL record on
data.ntsb.gov ↗.
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