- Date
- May 10, 2025, 14:12 local (21:12 UTC)
- Place
- Enumclaw, WA · farm field
- Injuries
- 1 uninjured
- Damage
- Substantial damage
- Phase of flight
- Initial climb
- Aircraft
- N333TMPiper PA-18-150
- Defining event
- Initial climb: 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, Lycoming Engines
- FAA report
- 20250510018619A
- Case key
- 200149
From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.
On this page
Preliminary report
What NTSB knew early in the investigation. It may change in the final report.
On May 10, 2025, about 1412 Pacific daylight time, a Piper PA-18-150, N333TM, was substantially damaged when it was involved in an accident near Enumclaw, Washington. The pilot was not injured. The airplane was operated as a Title 14 Code of Federal Regulations Part 91 glider tow flight. The pilot was conducting glider tow operations from Bergseth Field Airport (WN76), Enumclaw, Washington. According to the pilot, he departed WN76 and was conducting turns consistent with the operator’s standard departure procedure, with a glider in tow. At about 200 ft above ground level (agl), and in a left bank, the engine abruptly lost all power. The pilot lowered the airplane’s nose and verified that the fuel selector was positioned on the left fuel tank, carburetor heat was off, throttle was full forward, and magneto switch was on BOTH. The pilot released the glider from its tow and initiated a forced landing to a field about 1 mile northwest of WN76. During the landing, the airplane impacted a fence and subsequently ground looped. The pilot reported that the accident flight was the fourth flight of the day, and that the airplane had started the day’s flights with “slightly less than half tanks on either side.” Prior to the accident takeoff, the left wing fuel tank sight gauge indicated approximately ¼ - ½ full, and the right wing fuel tank indicated approximately ¼ full. Postaccident examination of the airplane revealed substantial damage to the left wing, both left and right wing lift struts, and fuselage. The wreckage was recovered to a secure location 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
- N333TM
- Reported as
- Piper PA-18-150
- Category
- Airplane
- Serial number
- 18-8939
- Built
- 1971
- Airframe hours
- 3,631
- Damage
- Substantial damage
- Flight
- Glider tow · Part 91
- Airworthiness certificate
- Standard, Normal
- Last inspection
- Annual · March 31, 2025 · 20 hours before
- Departed
- WN76 · Enumclaw, WA
- Destination
- WN76 · Enumclaw, WA
- Airport
- WN76 · Bergseth Field
- Equipment
- ADS-B
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
- 7,000 ft broken
- Temperature
- 63 °F, dew point 34 °F
- Altimeter
- 30.03 inHg
- Observed at
- KPLU, 17 nm away
- METAR
- KPLU 102115Z AUTO 00000KT 10SM FEW060 BKN070 17/01 A3003
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.
Other investigations on N333TM · 1
Matched to the same aircraft by N-number and date.