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Atlas / NTSB / UNK65X0495

NTSB CAROL · Event

Event UNK65X0495

1964-10-30 PITTSBURGH, Pennsylvania, United States None 1 aircraft Status: Completed

Registry · N618Z

FAA Aircraft Registry record.

Make / Model

RANS S-16 SHEKARI

Seats / Engines

2 seats · 1 engine

ADS-B equipped

Yes — Mode-S A80EB5

Registrant of record

HARMS DAVID E

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

CURTIS C-46F · N618Z

Damage

Substantial

Craft type

Airplane

Classification

Accident

Light condition

Dusk

Weather

VMC

Phase of flight

D1

Airport

GREATER PITTSBRG

Weather at impact

Sky

BROKEN

Wind

330° / 13 kt

Temp

46° F

Aircraft history

Total time

17,949 hrs

Pilot

Certificate

DA (DA)

Total hours

16,692

Age

42

Probable cause (from PRE1982.MDB)

LDG GR-R.MAIN GR NOT LOCKED DOWN,REASON UNDETERMND

Investigator remarks

NO.2 ENG NOSECASE THRUST BRG FAILED.GR IND DOWN.

Cause factors

  • 74/A/AA A
    POWERPLANT CRANKCASE Cause — pilot/personnel action
  • 84/B/J B
    MISCELLANEOUS WRITTEN CAUSE
  • 70/K/CL K
    AIRFRAME LANDING GEAR WARNING AND INDICATING COMPONENTS Joint factor
  • 70/K/CN K
    AIRFRAME SWITCHES,LEVERS,CRANKING MECHANISM,ETC. Joint factor
  • 88/K/95 K
    MISCELLANEOUS ACTS,CONDITIONS MATERIAL FAILURE Joint factor
  • 75/K/BD K
    SYSTEMS RESERVOIR,LINES,FITTINGS Joint factor
  • 88/K/AJ K
    MISCELLANEOUS ACTS,CONDITIONS LEAK/LEAKAGE Joint factor

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 1 0073. Source file NTSB_1964_1_0073.txt. Modern CAROL record on data.ntsb.gov ↗.