No fatalities

Forced Landing After Cockpit Smoke and Engine Roughness (N3621K)

Kerrville, TX, US

On September 22, 1988, a Piper PA-28-140 (registration N3621K) was involved in an aviation accident near Kerrville, TX. No fatalities were reported. Investigators recorded the probable cause as: The exhaust muffler had split, leading to smoke in the cockpit and engine roughness. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive.

Sourcesthe U.S. National Transportation Safety Board (NTSB) historical archivePrimary reportUpdated 2026-07-04Data APIEditorial standards

A commercial pilot experienced smoke and rough engine, attempted forced landing, stalled on approach and struck a tree. Post-accident inspection revealed a split exhaust muffler.

Incident Overview

A commercial pilot was flying approximately 6 miles from his ranch when smoke appeared in the cockpit, accompanied by a rough-running engine. The pilot initiated a return to the ranch for a forced landing.

Approach and Landing Attempts

During the first approach, the pilot overflew the intended landing area, determining that the aircraft was too high. He then turned for a second approach. Engine performance continued to deteriorate, and the second approach placed the aircraft too low. Just prior to impact, the pilot stalled the airplane while descending toward a tree on the approach path. The aircraft came to rest 20 yards short of the landing strip.

Post-Impact Events

After the aircraft stopped, the pilot observed flames coming from the engine area and exited the airplane. He attempted to extinguish the fire using dirt, but was unsuccessful.

Inspection Findings

A post-accident inspection conducted by an FAA investigator revealed evidence that the exhaust muffler had split.

Probable cause

The exhaust muffler had split, leading to smoke in the cockpit and engine roughness.

Frequently asked questions

What happened in the 22 Sept 1988 Piper PA-28-140 accident near Kerrville, TX?

A commercial pilot experienced smoke and rough engine, attempted forced landing, stalled on approach and struck a tree. Post-accident inspection revealed a split exhaust muffler.

Were there any fatalities in the 22 Sept 1988 Piper PA-28-140 accident?

No fatalities were recorded in this accident.

What aircraft was involved and where did it happen?

The accident on 22 Sept 1988 involved a Piper PA-28-140, registration N3621K, at Kerrville, TX.

What was the probable cause of the accident?

The exhaust muffler had split, leading to smoke in the cockpit and engine roughness.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001213X26817. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.