WPR26LA183

NTSB accident investigation · Stinson 108-3 · Quilcene, WA · May 12, 2026

Accident · No injuriesClass 3 · LimitedPreliminary report
Date
May 12, 2026, 10:49 local (17:49 UTC)
Place
Quilcene, WA
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N588CStinson 108-3
Defining event
Enroute-cruise: Loss of engine power (total)
Weather
Visual (VMC) · Day
Status
Investigation ongoing
Investigation class
Class 3
NTSB office
Western Pacific Region
Parties
Federal Aviation Administration
FAA report
20260512005529A
Case key
202974

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

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Preliminary report

What NTSB knew early in the investigation. It may change in the final report.

On May 12, 2026, at about 1049 Pacific daylight time, a Stinson 108-3 airplane, N588C, was substantially damaged when it was involved in an accident near Quilcene, Washington. The pilot was uninjured. The airplane was operated as a Title 14 Code of Federal Regulations Part 91 personal flight. The pilot reported that during his preflight inspection of the airplane, he did not note any oil leaks, and the engine oil dipstick showed about 7.5 quarts of oil. About 15 minutes after departure, the engine began to run rough. The pilot applied carburetor heat, switched magnetos, and switched fuel tanks to resolve the engine roughness, but was unsuccessful. He then decided to divert to a nearby airport. Shortly after the pilot began his turn to the airport, the engine emitted a loud bang, oil covered the windscreen, and smoke began filling the cabin. As the pilot began maneuvering toward a farm field to land, a fire began burning in the engine compartment and progressed to the lower forward cabin near the pilot’s feet. He landed the airplane in a grassy field, and during the landing roll, the airplane impacted a ditch. The pilot exited the airplane and used the airplane’s fire extinguisher and mud from the ditch to put out the fire in the airplane’s engine compartment. Photographs of the airplane at the accident site revealed the airplane had sustained substantial damage to the fuselage and empennage. Holes were visible on the top of the engine crankcase. The wreckage has been retained for further examination.

Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.

Aircraft

Registration
N588C
Reported as
Stinson 108-3
Category
Airplane
Serial number
108-3588
Built
1947
Airframe hours
2,421
Damage
Substantial damage
Fire
Both
Flight
Personal · Part 91
Airworthiness certificate
Standard, Normal
Last inspection
Annual · September 18, 2025 · 10 hours before
Departed
2WA1 · Sequim, WA
Destination
55S · Packwood, WA
Equipment
Electronic multifunction display, ADS-B, Electronic primary flight display

Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
10 statute miles
Lowest ceiling
None
Temperature
57 °F, dew point 48 °F
Altimeter
29.91 inHg
Observed at
KNOW, 24 nm away
METAR
METAR KNOW 121735Z AUTO 00000KT 10SM CLR 14/09 A2991 RMK AO2 T01430090

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.