20260507009599A

Accident · Substantial damage

FAA accident report · Sherry Grobstein LSA-8X · Hyannis, MA · May 7, 2026

Date
May 7, 2026 · 15:30 local
Place
Hyannis, MA
Phase of flight
Landing: Touchdown
Operating rules
General operating rules (Part 91)
Damage
Substantial damage
Aircraft
N912Z
NTSB investigation
NTSBERA26LA202
Reported as
Sherry Grobstein LSA-8X
People aboard
1
Fatal injuries
0
Other injuries
0
Pilot’s certificate
Private pilot
Pilot’s flight hours
1,469 total7 in this make and model1 in the last 90 days

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 may 7, 2026, privacy data omitted, a LSA-8X, was flown from falmouth air park (5B6) to cape cod gateway airport (khya). The weather was visual meteorological conditions (VMC) with a wind from approximately 220 degrees at 11 knots reported at khya. The aircraft came in to land on runway 24. According to the pilot-in-command (PIC), everything looked normal until touchdown when the aircraft bounced and then began to porpoise. The PIC stated that she ground looped the aircraft and the aircraft fell over on its nose. The aircraft came to rest upside down on the right-hand edge of runway 24 approximately 1200 feet down the runway.

The damages observed were as follows:

• The leading edges on the right and left wing had impact dents. The dents were approximately an inch and had scrap marks moving backwards on the top of the wing.

• Top of the vertical stabilator had crush damage from the leading edge to the trailing edge as well as the top of the rudder.

• The windshield was broken on the pilot’s side. The glass was broken from the top of the windshield to approximately 3 inches from the bottom with a width of approximately 2 inches.

• The propeller blades were broken consistent with a ground strike. The blade tips were sheared off less than ½ inch. There were scoring marks starting from where the tip was to approximately one inch inward on the bottom of the blade.

• The engine mount showed signs of overstress and impact damage. There was hardware bent and rubber cushions displaced from the mounts.

• The right main landing gear strut pushed up through the floorboard skin in the center fuselage.

The continuity of the flight and engine controls were determined to be complete. There was also no evidence of damage to the engine firewall and there was no sign of wing warping or skin wrinkling on the left/right wing, fuselage, or tail.

As the FAA filed it

ON MAY 7, 2026, ^PRIVACY DATA OMITTED^, A LSA-8X, WAS FLOWN FROM FALMOUTH AIR PARK (5B6) TO CAPE COD GATEWAY AIRPORT (KHYA). THE WEATHER WAS VISUAL METEOROLOGICAL CONDITIONS (VMC) WITH A WIND FROM APPROXIMATELY 220 DEGREES AT 11 KNOTS REPORTED AT KHYA. THE AIRCRAFT CAME IN TO LAND ON RUNWAY 24. ACCORDING TO THE PILOT-IN-COMMAND (PIC), EVERYTHING LOOKED NORMAL UNTIL TOUCHDOWN WHEN THE AIRCRAFT BOUNCED AND THEN BEGAN TO PORPOISE. THE PIC STATED THAT SHE GROUND LOOPED THE AIRCRAFT AND THE AIRCRAFT FELL OVER ON ITS NOSE. THE AIRCRAFT CAME TO REST UPSIDE DOWN ON THE RIGHT-HAND EDGE OF RUNWAY 24 APPROXIMATELY 1200 FEET DOWN THE RUNWAY.

THE DAMAGES OBSERVED WERE AS FOLLOWS:

• THE LEADING EDGES ON THE RIGHT AND LEFT WING HAD IMPACT DENTS. THE DENTS WERE APPROXIMATELY AN INCH AND HAD SCRAP MARKS MOVING BACKWARDS ON THE TOP OF THE WING.

• TOP OF THE VERTICAL STABILATOR HAD CRUSH DAMAGE FROM THE LEADING EDGE TO THE TRAILING EDGE AS WELL AS THE TOP OF THE RUDDER.

• THE WINDSHIELD WAS BROKEN ON THE PILOT’S SIDE. THE GLASS WAS BROKEN FROM THE TOP OF THE WINDSHIELD TO APPROXIMATELY 3 INCHES FROM THE BOTTOM WITH A WIDTH OF APPROXIMATELY 2 INCHES.

• THE PROPELLER BLADES WERE BROKEN CONSISTENT WITH A GROUND STRIKE. THE BLADE TIPS WERE SHEARED OFF LESS THAN ½ INCH. THERE WERE SCORING MARKS STARTING FROM WHERE THE TIP WAS TO APPROXIMATELY ONE INCH INWARD ON THE BOTTOM OF THE BLADE.

• THE ENGINE MOUNT SHOWED SIGNS OF OVERSTRESS AND IMPACT DAMAGE. THERE WAS HARDWARE BENT AND RUBBER CUSHIONS DISPLACED FROM THE MOUNTS.

• THE RIGHT MAIN LANDING GEAR STRUT PUSHED UP THROUGH THE FLOORBOARD SKIN IN THE CENTER FUSELAGE.

THE CONTINUITY OF THE FLIGHT AND ENGINE CONTROLS WERE DETERMINED TO BE COMPLETE. THERE WAS ALSO NO EVIDENCE OF DAMAGE TO THE ENGINE FIREWALL AND THERE WAS NO SIGN OF WING WARPING OR SKIN WRINKLING ON THE LEFT/RIGHT WING, FUSELAGE, OR TAIL.

NTSB investigation

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