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Atlas / NTSB / FTW81IA096

NTSB CAROL · Event

Event FTW81IA096

1981-05-26 SS BLOCK 214, Gulf of America, United States None 1 aircraft Status: Completed

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

SIKORSKY S-76 · N1547D

Damage

Minor

Craft type

Balloon

Classification

C

Light condition

Dawn

Weather

VMC

Phase of flight

C2

Operator type

E

Airport

OIL RIG PLATFORM

Kind of flying

CI

Weather at impact

Sky

CLEAR

Wind

240° / 15 kt

Aircraft history

Serial number

000000760077

Total time

225 hrs

Pilot

Certificate

Commercial

Total hours

4,790

Age

31

Probable cause (from PRE1982.MDB)

AIL FM FATIGUE.FRGMNTS FM OVRSPD TURB DMGD OTR ENG

Investigator remarks

THICKNESS,4TH STAGE TURB NZL LCTG RNG,BLO SPEC,F

Cause factors

  • 68/A/J0 A
    PERSONNEL SUBSTANDARD QUALITY CONTROL Cause — pilot/personnel action
  • 74/A/PC A
    POWERPLANT SHROUD,RING Cause — pilot/personnel action
  • 88/A/36 A
    MISCELLANEOUS ACTS,CONDITIONS FATIGUE FRACTURE Cause — pilot/personnel action
  • 74/A/KC A
    POWERPLANT FOREIGN OBJECT DAMAGE Cause — pilot/personnel action
  • 88/J/48 J
    MISCELLANEOUS ACTS,CONDITIONS FAILURE OF TWO OR MORE ENGINES Joint 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 5 0057. Source file NTSB_1981_5_0057.txt. Modern CAROL record on data.ntsb.gov ↗.