WPR26LA133

NTSB accident investigation · Piper PA-12 · West Linn, OR · March 19, 2026

Accident · No injuriesClass 3 · LimitedPreliminary report
Date
March 18, 2026, 17:00 local (Mar 19, 2026, 00:00 UTC)
Place
West Linn, OR
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N7632HPiper PA-12
Defining event
Takeoff: Landing gear collapse
Weather
Visual (VMC) · Day
Status
Investigation ongoing
Investigation class
Class 3
NTSB office
Western Pacific Region
Parties
FAA
FAA report
20260318003779I
Case key
202683

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 March 18, 2026, about 1700 Pacific daylight time, a Piper PA-12, N7632H, was substantially damaged when it was involved in an accident near West Linn, Oregon. The pilot was not injured. The airplane was operated as a Title 14 Code of Federal Regulations Part 91 personal flight. The flight departed Portland Hillsboro Airport (HIO), Hillsboro, Oregon, about 1500, en route to an off-airport landing area on Goat Island, located in the Willamette River. Visual meteorological conditions prevailed, and no flight plan was filed. The pilot reported that, during takeoff from an unimproved surface on Goat Island, the airplane accelerated normally. As the airplane reached rotation speed and became light on the landing gear, it made a sudden, sharp left turn. The airplane departed the takeoff area, traveled over the shoreline, and came to rest in the Willamette River, resulting in substantial damage to the right wing. Postaccident examination of the airplane revealed that the left main landing gear had separated. The forward attach point exhibited longitudinal tears, and the aft attach point displayed cracking and buckling of the rear gear leg. The airplane was recovered to a secure location. The left main landing gear leg was 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
N7632H
Reported as
Piper PA-12
Category
Airplane
Serial number
12-507
Built
1946
Airframe hours
5,269.3
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Standard, Normal
Last inspection
Annual · March 12, 2026
Departed
HIO · Hillsboro, OR
Destination
West Linn, OR
Airport
None · Shoreline Goat Island
Equipment
Handheld GPS

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
110° at 4 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
64 °F, dew point 43 °F
Altimeter
30.05 inHg
Observed at
SPB, 11 nm away
METAR
METAR KSPB 182253Z AUTO 11004KT 10SM CLR 18/06 A3005 RMK AO2 SLP174 T01830061

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 N7632H · 1

Matched to the same aircraft by N-number and date.