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20260605005239A

Accident · Substantial damage
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FAA accident report · Olson/Williams SONEX · Jaffrey, NH · June 5, 2026

FAA Aviation Safety Information Portal

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Date
June 5, 2026 · 16:26 local
Place
Jaffrey, NH
Airport
Silver Ranch Airpark Inc
Phase of flight
Takeoff: Climb Out
Operating rules
General operating rules (Part 91)
Damage
Substantial damage
Aircraft
N28YD
NTSB investigation
NTSBERA26LA231
Reported as
Olson/Williams Sonex
Reported engine
Amateur-built VOLKSWAGEN
People aboard
1
Fatal injuries
0
Other injuries
1
Pilot’s certificate
Private pilot
N28YDRegistered now · Olson/Williams SONEXS/N 533 · Built 2007Airframe modelOlson/Williams SONEXEngine modelAmateur-built UNKNOWN ENG

From the FAA’s Accident/Incident Data System (AIDS), through its Aviation Safety Information Portal, as reported. The NTSB investigates accidents separately, and its record of an accident is the fuller one. The aircraft is matched to the registry by N-number and event date, checked against the reported make and model; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

What happened

The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.

On June 5, 2026 at approximately 1638Z the aircraft crashed shortly after takeoff due to a loss of power and possible stall. The pilot was injured and evacuated to umass hospital. The aircraft was substantially damaged. It appears to have impacted on the left wing tip and left forward engine cowl area. Examination of the wreckage showed flight control continuity and fuel system continuity to the throttle body. The electrical system could not be checked due to impact damage to the upper magneto. Crankshaft continuity was established by turning the damaged propeller and observing movement of the flywheel on the aft side of the engine. Engine compression was established by removing a spark plug in each cylinder and rotating the damaged propeller. Two instruments with non-volatile memory were removed from the instrument panel along with an SD card and provided to the NTSB for examination. Aircraft logbooks are not accessable at this time. This is an interim report. We are awaiting results from the instrument download and review of the aircraft logbooks and will update at that time.

As the FAA filed it

ON JUNE 5, 2026 AT APPROXIMATELY 1638Z THE AIRCRAFT CRASHED SHORTLY AFTER TAKEOFF DUE TO A LOSS OF POWER AND POSSIBLE STALL. THE PILOT WAS INJURED AND EVACUATED TO UMASS HOSPITAL. THE AIRCRAFT WAS SUBSTANTIALLY DAMAGED. IT APPEARS TO HAVE IMPACTED ON THE LEFT WING TIP AND LEFT FORWARD ENGINE COWL AREA. EXAMINATION OF THE WRECKAGE SHOWED FLIGHT CONTROL CONTINUITY AND FUEL SYSTEM CONTINUITY TO THE THROTTLE BODY. THE ELECTRICAL SYSTEM COULD NOT BE CHECKED DUE TO IMPACT DAMAGE TO THE UPPER MAGNETO. CRANKSHAFT CONTINUITY WAS ESTABLISHED BY TURNING THE DAMAGED PROPELLER AND OBSERVING MOVEMENT OF THE FLYWHEEL ON THE AFT SIDE OF THE ENGINE. ENGINE COMPRESSION WAS ESTABLISHED BY REMOVING A SPARK PLUG IN EACH CYLINDER AND ROTATING THE DAMAGED PROPELLER. TWO INSTRUMENTS WITH NON-VOLATILE MEMORY WERE REMOVED FROM THE INSTRUMENT PANEL ALONG WITH AN SD CARD AND PROVIDED TO THE NTSB FOR EXAMINATION. AIRCRAFT LOGBOOKS ARE NOT ACCESSABLE AT THIS TIME. THIS IS AN INTERIM REPORT. WE ARE AWAITING RESULTS FROM THE INSTRUMENT DOWNLOAD AND REVIEW OF THE AIRCRAFT LOGBOOKS AND WILL UPDATE AT THAT TIME.

NTSB investigation

The NTSB’s investigation of this event, with its probable cause and findings. Matched to this report by N-number and date.

NTSB ERA26LA231Accident · Serious injuriesClass 3 · LimitedPreliminary reportJaffrey, NHOn June 5, 2026, at 1100 eastern daylight time, an experimental amateur-built Sonex airplane, N28YD, was substantially damaged when it was involved in an accident near Jaffrey, New Hampshire. The private pilot was seriously injured. The flight was conducted…Jun 5, 2026 · Substantial damage