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Atlas / NTSB / ANC99LA048

NTSB CAROL · Event

Event ANC99LA048

1999-04-18 PALMER, Alaska, United States Airport · PAQ None 1 aircraft Status: Completed

Registry · N95WE

FAA Aircraft Registry record.

Make / Model

BLACKSHAPE SPA BK160

Seats / Engines

2 seats · 1 engine

ADS-B equipped

Yes — Mode-S AD3447

Registrant of record

GULF STATE AVIATION LLC

Source: FAA Aircraft Registry (releasable master file).

Aircraft involved

Probable cause & findings

The pilot's inadequate compensation for wind conditions. A factor associated with the accident was a downdraft.

Factual narrative

On April 18, 1999, about 1230 Alaska daylight time, a wheel equipped, experimental/homebuilt RAF 2000-GTX gyroplane, N95WE, sustained substantial damage during a forced landing after takeoff from the Palmer Municipal Airport, Palmer, Alaska. The gyroplane was being operated as a visual flight rules (VFR) local area personal flight when the accident occurred. The solo private pilot/owner was not injured. Visual meteorological conditions prevailed, and no flight plan was filed. The flight originated at the Palmer Municipal Airport, about 1220. During a telephone conversation with the National Transportation Safety Board investigator-in-charge on April 20, the pilot reported that he was departing on runway 15. He said that as the gyroplane climbed to about 400 feet above the runway, strong winds were encountered from the southeast. The pilot stated: "I just could not keep it from sinking, and I had to put it down." The pilot said that during a forced landing in an open field, the gyroplane landed hard, and the fuselage and main rotor system sustained substantial damage. The pilot holds a private pilot certificate with a single-engine land rating, and did not hold a rotorcraft-gyroplane rating. The pilot stated that he did obtain an instructor's logbook endorsement for solo flight in gyroplanes. On April 21, a Federal Aviation Administration (FAA) airworthiness inspector, Anchorage Flight Standards District Office, examined the gyroplane wreckage at the pilot's residence. The inspector reported that during his conversation with the pilot, it was reported that after the accident, a bent cyclic control tube was found lying next to the gyroplane wreckage. He said that the lower spherical rod end bearing had fractured across the threaded portion of the bearing assembly. The inspector added that the two remaining control tubes remained attached. The cyclic control tube was sent to the National Transportation Safety Board's Materials Laboratory for examination. A Safety Board metallurgist reported that the fracture surfaces exhibited features consistent with an overstress separation. He added that the fracture face was consistent with the direction of the tube bending. The closest official weather observation station is located at the Palmer Municipal Airport. On April 18, at 1153, an Aviation Routine Weather Report (METAR) was reporting, in part: Wind, 170 degrees (true) at 7 knots; visibility, 10 statute miles; clouds, clear; temperature, 55 degrees F; dew point, 35 degrees F; altimeter, 29.85 inHg. The private pilot was departing on runway 15 in a gyroplane. He said that as the gyroplane climbed to about 400 feet above the runway, strong winds were encountered from the southeast. The pilot stated: 'I just could not keep it from sinking, and I had to put it down.' The pilot said that during a forced landing in an open field the gyroplane landed hard, and the fuselage and main rotor system sustained substantial damage. The pilot holds a private pilot certificate with a single-engine land rating, and did not hold a rotorcraft-gyroplane rating. The pilot stated that he did obtain an instructor's logbook endorsement for solo flight in gyroplanes. The pilot reported that after the accident a bent and fractured cyclic control tube was found lying next to the gyroplane wreckage. The cyclic control tube was sent to the NTSB's Materials Laboratory for examination. A Safety Board metallurgist reported that the fracture surfaces exhibited features consistent with an overstress separation. He added that the fracture face was consistent with the direction of the tube bending. The closest official weather observation station is Palmer. On April 18, at 1153, an Aviation Routine Weather Report (METAR) was reporting, in part: Wind, 170 degrees at 7 knots. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12

Verbatim from NTSB's published report. Source file NTSB_1999_ANC99LA048.txt. Findings + structured fields enriched from FAA avall.mdb. Full investigation docket on data.ntsb.gov ↗.