Allyn Kaste RANS S-19 (KIT) N258DK

Summary

On 10 February 2025 at about 16:01 local time, a Allyn Kaste RANS S-19 (KIT) registered N258DK was involved in an accident near Doylestown, Pennsylvania, United States. One person was on board and nobody was injured. The aircraft was substantially damaged. The NTSB has published a probable cause for this accident; it is quoted in full below.

Date

10 February 2025 at 16:01

Classification

Accident

Location

Doylestown, Pennsylvania, United States

Nearest airport

Doylestown (DYL)

Coordinates

40.3331, -75.1223

Aircraft

Allyn Kaste RANS S-19 (KIT)

Registration

N258DK

Category

Airplane

Year built

2011

Engines

1

Operator

Not recorded

Operating rule

Part 91: General Aviation

Purpose of flight

Personal

Phase of flight

Not recorded

Route

Unknown → Pittstown

Aircraft damage

Substantial

Weather

VMC

Light

Day

NTSB number

ERA25LA122

Nobody was injured.

The pilot’s inadequate maintenance and preflight inspection.

Quoted verbatim from the NTSB record. This site does not paraphrase or interpret it.

Read the full NTSB narrative

The day before the accident, the pilot had removed the airplane’s induction air filter but had inadvertently forgotten to reinstall it. On the day of the accident flight, he had also inadvertently forgotten to remove the engine cowling plugs. After takeoff, the pilot turned onto the downwind leg of the airport traffic pattern and the engine output immediately reduced to idle power and the engine would not respond to throttle input. The pilot then executed a forced landing in a gravel lot, during which the airplane bounced, the nose landing gear separated, and the airplane came to rest inverted. The airplane sustained substantial damage to the right wing and fuselage. Postaccident examination of the wreckage confirmed that the left cowling plug was partially ingested into the end of the intake filter duct, completely obstructing it. No evidence of any preimpact mechanical malfunctions or failures of the airframe or engine were otherwise found. Based on this information, it is likely that the restricted flow of intake air to the engine resulted in the partial loss of engine power.

Quoted verbatim from the NTSB record.