NTSB CAROL · Event
Event FTW81FA131
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
BELL 206L-1 · N3887W
Damage
Substantial
Craft type
Balloon
Classification
Accident
Light condition
Dawn
Weather
VMC
Phase of flight
EB
Operator type
E
Airport
MEMORIAL HOSPITAL
Kind of flying
DC
Weather at impact
Sky
SCATTERED-ABOVE 1000 FEET
Wind
180° / 5 kt
Temp
93° F
Aircraft history
Serial number
000000045479
Total time
501 hrs
Pilot
Certificate
GA (GA)
Total hours
3,156
Age
29
Probable cause (from PRE1982.MDB)
OSE,VLV WOULD RMN FULL OPEN,MAX PWR APRX 285 SHP.
Investigator remarks
B-NUT LOOSE ON PR LN AT ENG BLEED VLV.W B-NUT LO
Cause factors
- 68/C/D6 C PERSONNEL INADEQUATE MAINTENANCE AND INSPECTION Cause
- 74/C/W5 C POWERPLANT OTHER Cause
- 88/C/CB C MISCELLANEOUS ACTS,CONDITIONS IMPROPERLY INSTALLED Cause
- 88/C/AU C MISCELLANEOUS ACTS,CONDITIONS UNDER TORQUED Cause
- 88/C/AJ C MISCELLANEOUS ACTS,CONDITIONS LEAK/LEAKAGE Cause
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 2554.
Source file
NTSB_1981_3_2554.txt.
Modern CAROL record on
data.ntsb.gov ↗.
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