NTSB CHI92DCJ05 — 1992-08-11 · ATKINSON, Nebraska, United States

Current FAA registration · N48672

Make / Model: GRUMMAN ACFT ENG COR-SCHWEIZER G-164B
Year of manufacture: 1976 · 16 years old at event
Engine: P&W R-985 SERIES (450 hp)
Seats / Engines: 1 seats · 1 engine
Last airworthiness date: 19760924
ADS-B equipped: Yes — Mode-S A6024B

Source: FAA Aircraft Registry (releasable master file).

Aircraft involved

N48672 Grumman-Schweizer G-164B None

Probable cause & findings

A CRACKED ENGINE CYLINDER.

Factual narrative

THE PILOT REPORTED THE ENGINE BEGAN TO RUN ROUGH SHORTLY AFTER TAKEOFF. HE STATED HE BELIEVED THE PROBLEM WAS RELATED TO THE IGNITION SYSTEM, AND ATTEMPTED TO 'VERIFY AND ISOLATE THE PROBLEM... .' WHEN THE MAGNETO SWITCH WAS MOVED FROM THE BOTH TO THE LEFT POSITION, THE ENGINE LOST POWER. ATTEMPTS AT RESTART WERE UNSUCCESSFUL, AND THE PILOT MADE A FORCED LANDING IN A CORN FIELD. POST-ACCIDENT EXAMINATION REVEALED A CRACKED CYLINDER INSTALLED AT THE NUMBER 9 POSITION. THERE WAS NO EVIDENCE OF OTHER PRE-IMPACT MALFUNCTION. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12

Verbatim from NTSB's published report. Source file NTSB_1992_CHI92DCJ05.txt. Findings + structured fields enriched from FAA avall.mdb. Full investigation docket on data.ntsb.gov ↗.

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