20230311004539A

Accident · Destroyed

FAA accident report · Socata TB21 · Eden Prairie, MN · March 11, 2023

Date
March 11, 2023 · 21:45 local
Place
Eden Prairie, MN
Airport
Flying Cloud
Phase of flight
Descent
Operating rules
General operating rules (Part 91)
Damage
Destroyed
Aircraft
N789TB
NTSB investigation
NTSBCEN23LA138
Reported as
Socata TB21
Reported engine
Lycoming TI0-540 series
People aboard
3
Fatal injuries
0
Other injuries
3
Pilot’s certificate
Commercial pilot
Pilot’s flight hours
2,990 total1,200 in this make and model8 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 March 11th, 2023 at approximately 2135 central time, a Socata TB20, crashed while on approach to runway 10R at kfcm. The aircraft was not certified for flight into known icing.

Prior to the flight, the PIC received a weather briefing via phone from leidos fss at 1914 central time. The weather briefing for the route of flight included IFR conditions at the departure and destination airports, an AIRMET for icing and snow on the radar.

During the climb out, the PIC checked the wings for ice every two minutes until reaching the tops at 5,400’. The PIC first noted ice buildup on the aircraft while on a vector to final outside of the zamud intersection after the aircraft (a king air C90) that had just landed on runway 10R reported “good” braking action. The PIC looked out his window with a pen light and estimated about 4” of ice buildup on the leading edge of the wing. The ice also ran back to approximately the fuel cap. The PIC noted that the windshield was completely covered with what were described as “rocks”, so the window defrost was turned on and was able to clear the windshield. This was the first time since reaching cruise that the PIC inspected for ice. The PIC waited to extend the landing gear until beyond the stubr intersection and did not extend the flaps due to the ice buildup on the aircraft. When the PIC was asked about power setting on approach, the PIC could not recall the actual power setting, but monitored the fuel flow. The PIC stated that a normal approach would require a fuel flow between 9 gph and 11 gph. The PIC stated that this approach required about 15 gph. Also, the PIC stated that a normal cruise power setting was 16.4 gph, which would be about half throttle. The aircraft broke out of the clouds between 300’ AGL and 400’ AGL, then the PIC cancelled IFR. The PIC was unable to maintain a flight path that would make the runway, made a final turn to avoid a tree then impacted the snow with the left wing down. The aircraft bounced and flipped over before final impact and explosion. All three occupants were able to escape the aircraft. The PIC and one passenger sustained injuries.

As the FAA filed it

ON MARCH 11TH, 2023 AT APPROXIMATELY 2135 CENTRAL TIME, A SOCATA TB20, CRASHED WHILE ON APPROACH TO RUNWAY 10R AT KFCM. THE AIRCRAFT WAS NOT CERTIFIED FOR FLIGHT INTO KNOWN ICING.

PRIOR TO THE FLIGHT, THE PIC RECEIVED A WEATHER BRIEFING VIA PHONE FROM LEIDOS FSS AT 1914 CENTRAL TIME. THE WEATHER BRIEFING FOR THE ROUTE OF FLIGHT INCLUDED IFR CONDITIONS AT THE DEPARTURE AND DESTINATION AIRPORTS, AN AIRMET FOR ICING AND SNOW ON THE RADAR.

DURING THE CLIMB OUT, THE PIC CHECKED THE WINGS FOR ICE EVERY TWO MINUTES UNTIL REACHING THE TOPS AT 5,400’. THE PIC FIRST NOTED ICE BUILDUP ON THE AIRCRAFT WHILE ON A VECTOR TO FINAL OUTSIDE OF THE ZAMUD INTERSECTION AFTER THE AIRCRAFT (A KING AIR C90) THAT HAD JUST LANDED ON RUNWAY 10R REPORTED “GOOD” BRAKING ACTION. THE PIC LOOKED OUT HIS WINDOW WITH A PEN LIGHT AND ESTIMATED ABOUT 4” OF ICE BUILDUP ON THE LEADING EDGE OF THE WING. THE ICE ALSO RAN BACK TO APPROXIMATELY THE FUEL CAP. THE PIC NOTED THAT THE WINDSHIELD WAS COMPLETELY COVERED WITH WHAT WERE DESCRIBED AS “ROCKS”, SO THE WINDOW DEFROST WAS TURNED ON AND WAS ABLE TO CLEAR THE WINDSHIELD. THIS WAS THE FIRST TIME SINCE REACHING CRUISE THAT THE PIC INSPECTED FOR ICE. THE PIC WAITED TO EXTEND THE LANDING GEAR UNTIL BEYOND THE STUBR INTERSECTION AND DID NOT EXTEND THE FLAPS DUE TO THE ICE BUILDUP ON THE AIRCRAFT. WHEN THE PIC WAS ASKED ABOUT POWER SETTING ON APPROACH, THE PIC COULD NOT RECALL THE ACTUAL POWER SETTING, BUT MONITORED THE FUEL FLOW. THE PIC STATED THAT A NORMAL APPROACH WOULD REQUIRE A FUEL FLOW BETWEEN 9 GPH AND 11 GPH. THE PIC STATED THAT THIS APPROACH REQUIRED ABOUT 15 GPH. ALSO, THE PIC STATED THAT A NORMAL CRUISE POWER SETTING WAS 16.4 GPH, WHICH WOULD BE ABOUT HALF THROTTLE. THE AIRCRAFT BROKE OUT OF THE CLOUDS BETWEEN 300’ AGL AND 400’ AGL, THEN THE PIC CANCELLED IFR. THE PIC WAS UNABLE TO MAINTAIN A FLIGHT PATH THAT WOULD MAKE THE RUNWAY, MADE A FINAL TURN TO AVOID A TREE THEN IMPACTED THE SNOW WITH THE LEFT WING DOWN. THE AIRCRAFT BOUNCED AND FLIPPED OVER BEFORE FINAL IMPACT AND EXPLOSION. ALL THREE OCCUPANTS WERE ABLE TO ESCAPE THE AIRCRAFT. THE PIC AND ONE PASSENGER SUSTAINED 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.