Siai-Marchetti SM 1019 N3172U

Summary

On 2 October 2025 at about 17:50 local time, a Siai-Marchetti SM 1019 registered N3172U, operated by D & D Airpark LLC, was involved in an accident near Richland, Washington, United States. 2 people were on board and nobody was injured. The aircraft was substantially damaged. No probable cause has been published yet; this accident is still under investigation.

Date

2 October 2025 at 17:50

Classification

Accident

Location

Richland, Washington, United States

Nearest airport

Richland (RLD)

Coordinates

46.3056, -119.3042

Aircraft

Siai-Marchetti SM 1019

Registration

N3172U

Category

Airplane

Year built

1976

Engines

1

Operator

D & D Airpark LLC

Operating rule

Part 91: General Aviation

Purpose of flight

Personal

Phase of flight

Not recorded

Route

Pasco → Unknown

Aircraft damage

Substantial

Weather

VMC

Light

Day

NTSB number

WPR26LA006

Nobody was injured.

The NTSB has not published a probable cause for this record. The investigation is still open; a final report usually follows one to two years after the accident.

Nothing about the cause is stated here that is not in the source record.

Read the full NTSB narrative

On October 2, 2025, about 1050 Pacific daylight time, a Siai-Marchetti SM 1019, N3172U, sustained substantial damage when it was involved in an accident near Richland, Washington. The pilot and passenger were not injured. The airplane was operated as a Title 14 Code of Federal Regulations Part 91 personal flight. The pilot reported that he departed Tri-Cities Airport (PSC), Pasco, Washington, on a local flight. About 45 minutes into the flight, he observed uncommanded engine rpm oscillations and decided to make a precautionary landing at Richland Airport (RLD), Richland, Washington. While on the downwind leg for runway 19, as the pilot moved the condition lever forward, it felt like the propeller was moving unsolicited, from beta to flight idle. He recalled that when he tried to return the propeller from beta, to flight idle, the engine rpm oscillations increased significantly. As the pilot turned onto final for runway 19, he noticed that the engine rpm oscillations became more erratic. The pilot stated that when the propeller felt like it had entered beta, the airspeed decreased below the airplane’s stall speed and thrusted the occupants forward in their seats. Subsequently, the pilot lowered the nose added power and noted that the slightest increase of the power control lever resulted in an extreme engine rpm increase followed by the nose of the airplane pitching upward. He applied 15° flaps and slowed the airplane to about 50 knots. The pilot stated that after touchdown, the landing roll was normal for about 50 ft. As he applied brakes, the engine rpm increased and the airplane became airborne. Subsequently, the airplane turned left, touched down hard on the runway, and the right main landing gear collapsed. Subsequently, the airplane exited the left side of the runway and came to rest upright. Postaccident examination of the airplane revealed that the right wing was substantially damaged. The airplane was recovered to a secure location for further examination.

Quoted verbatim from the NTSB record.