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Atlas / NTSB / LAX00LA311

NTSB CAROL · Event

Event LAX00LA311

2000-08-26 GRIDLEY, California, United States None 1 aircraft Status: Completed

Registry · N7SZ

FAA Aircraft Registry record.

Make / Model

LANCAIR LANCAIR IV

Year of manufacture

2014

Engine

CONT MOTOR IO-550-N (310 hp)

Seats / Engines

2 seats · 1 engine

Last airworthiness date

20140314

ADS-B equipped

Yes — Mode-S A95184

Registrant of record

ZULU AVIATION LLC

Source: FAA Aircraft Registry (releasable master file).

Aircraft involved

Probable cause & findings

The fracture and separation of a control rod in the cyclic flight control system.

Factual narrative

On August 26, 2000, at 0906 hours Pacific daylight time, a Perrucci Revolution Mini-500 experimental helicopter, N7SZ, was substantially damaged during a forced landing near Gridley, California. The student pilot was not injured. Visual meteorological conditions prevailed and no flight plan was filed for the local area personal flight, which departed from the owner's property in Gridley about 0840. The amateur built helicopter was operated by the owner under 14 CFR Part 91. The pilot reported that, while making a turn at 700 feet agl, he felt something break and the fore-and-aft portion of the cyclic flight control system became inoperative (disconnected). He lowered the collective control, reduced engine power, and made a run-on landing in an open field. During the landing the toe of one skid "dug in" and the helicopter came to rest on its side. Postaccident examination revealed that a push-pull tube in the cyclic control system fractured circumferentially in the wall at one end near where a through-bolt attached the rod end fitting to the tube. The assembly was Revolution Helicopters part number 0165. While maneuvering at 700 feet agl, the pilot of the amateur-built helicopter felt something "break" and the fore-and-aft portion of the cyclic flight control system became inoperative (disconnected). He lowered the collective control, reduced engine power, and made a run-on landing in an open field. During the landing the toe of one skid "dug in" and the helicopter came to rest on its side. Postaccident examination revealed that a push-pull tube in the cyclic control system fractured circumferentially in the wall at one end near where a through-bolt attached the rod end fitting to the tube. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12

Verbatim from NTSB's published report. Source file NTSB_2000_LAX00LA311.txt. Findings + structured fields enriched from FAA avall.mdb. Full investigation docket on data.ntsb.gov ↗.