20250724010089A

Accident · Substantial damage

FAA accident report · Grob-Werke TWIN ASTIR · Franconia, NH · July 24, 2025

Date
July 24, 2025 · 15:30 local
Place
Franconia, NH
Airport
Franconia
Phase of flight
Landing: Touchdown
Operating rules
General operating rules (Part 91)
Damage
Substantial damage
Aircraft
N103GV
NTSB investigation
NTSBERA25LA287
Reported as
Grob-Werke Twin Astir
People aboard
2
Fatal injuries
0
Other injuries
0
Pilot’s certificate
Commercial pilot
Pilot’s flight hours
153 total14 in this make and model24 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 Thursday July 24, 2025, the pilot of a Grob Twin Astir with one passenger in the front seat departed from 1B5 (Franconia NH) at around 1530, PIC launched from runway 18 as there was a south wind from around 200. PIC indiacated they were towed to the north side of lafayette mt and there was rotor (refers to a specific type of air movement) and turbulence on the tow. PIC released at around 5100' MSL and right away he noticed that he was in some bad sink. PIC quickly vectored west toward 1B5, and the reading on the variometer indicated they were falling at least 10 KTS, the max reading on the instrument. After a short period, PIC noticed that the spoilers had opened during the turbulence and PIC closed them, but they were still sinking. PIC was able to make it to lovett's field, which is about 1.5 sm northeast of 1B5 when the PIC realized that he didn't have enough altitude to clear the trees to get back to 1B5. PIC made the decision to land at lovett's field and upon landing, the plane ground looped from the tall grass and the tail boom broke in half. There were no injuries.

As the FAA filed it

ON THURSDAY JULY 24, 2025, THE PILOT OF A GROB TWIN ASTIR WITH ONE PASSENGER IN THE FRONT SEAT DEPARTED FROM 1B5 (FRANCONIA NH) AT AROUND 1530, PIC LAUNCHED FROM RUNWAY 18 AS THERE WAS A SOUTH WIND FROM AROUND 200. PIC INDIACATED THEY WERE TOWED TO THE NORTH SIDE OF LAFAYETTE MT AND THERE WAS ROTOR (REFERS TO A SPECIFIC TYPE OF AIR MOVEMENT) AND TURBULENCE ON THE TOW. PIC RELEASED AT AROUND 5100' MSL AND RIGHT AWAY HE NOTICED THAT HE WAS IN SOME BAD SINK. PIC QUICKLY VECTORED WEST TOWARD 1B5, AND THE READING ON THE VARIOMETER INDICATED THEY WERE FALLING AT LEAST 10 KTS, THE MAX READING ON THE INSTRUMENT. AFTER A SHORT PERIOD, PIC NOTICED THAT THE SPOILERS HAD OPENED DURING THE TURBULENCE AND PIC CLOSED THEM, BUT THEY WERE STILL SINKING. PIC WAS ABLE TO MAKE IT TO LOVETT'S FIELD, WHICH IS ABOUT 1.5 SM NORTHEAST OF 1B5 WHEN THE PIC REALIZED THAT HE DIDN'T HAVE ENOUGH ALTITUDE TO CLEAR THE TREES TO GET BACK TO 1B5. PIC MADE THE DECISION TO LAND AT LOVETT'S FIELD AND UPON LANDING, THE PLANE GROUND LOOPED FROM THE TALL GRASS AND THE TAIL BOOM BROKE IN HALF. THERE WERE NO INJURIES.

NTSB investigation

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