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Atlas / NTSB / ANC80DA080

NTSB CAROL · Event

Event ANC80DA080

1980-08-02 KIVALINA, Alaska, United States None 1 aircraft Status: Completed

Registry · N50SC

FAA Aircraft Registry record.

Make / Model

RONALD OSGOOD/ROBERT MEHARRY GLASAIR II S

Seats / Engines

2 seats · 1 engine

ADS-B equipped

Yes — Mode-S A6392A

Registrant of record

MEHARRY ROBERT

Source: FAA Aircraft Registry (releasable master file).

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

HUGHES 369 · N50SC

Damage

Substantial

Craft type

Balloon

Classification

Accident

Light condition

Dawn

Weather

VMC

Phase of flight

D5

Operator type

E

Kind of flying

CI

Weather at impact

Sky

SCATTERED-ABOVE 1000 FEET

Aircraft history

Serial number

00001140669S

Total time

2,254 hrs

Pilot

Certificate

DA (DA)

Total hours

4,678

Age

42

Probable cause (from PRE1982.MDB)

PRESS FILTER BYPASS SEAT.REPLACING FILTER RCMNDD.

Investigator remarks

METAL CONTAMINATION OF PWR TURB GOVERNOR FRM HI

Cause factors

  • 74/C/SE C
    POWERPLANT FUEL CONTROL Cause
  • 84/C/G C
    MISCELLANEOUS FOREIGN MATERIAL AFFECTING NORMAL OPERATIONS Cause
  • 88/C/41 C
    MISCELLANEOUS ACTS,CONDITIONS RPM-UNCONTROLLABLE-OVERSPEED Cause
  • 68/L/D6 L
    PERSONNEL INADEQUATE MAINTENANCE AND INSPECTION

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 2357. Source file NTSB_1980_3_2357.txt. Modern CAROL record on data.ntsb.gov ↗.