20240310002519A

Accident · Substantial damage

FAA accident report · Cessna 180 · Skwentna, AK · March 10, 2024

Date
March 10, 2024 · 10:30 local
Place
Skwentna, AK
Airport
Talaheim
Phase of flight
Taxi
Operating rules
General operating rules (Part 91)
Damage
Substantial damage
Aircraft
N7741A
NTSB investigation
NTSBANC24LA018
Reported as
Cessna 180
People aboard
2
Fatal injuries
0
Other injuries
0
Pilot’s certificate
Commercial pilot

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.

Pilot statement taken by phone at 1325.

While back taxing on a narrow snow packed runway, with straight skis installed, at about 15 to 20 miles per hour, the aircraft hit a snow drift.

This caused the aircraft to sink and pull to the left.

The pilot applied power to get the aircraft back on the runway.

That in turn, caused the left wing to strike a small tree branch, about 3 to 4 inches in diameter. Which made the aircraft yaw to the left, exerting a side load on the right landing gear which caused it to brake off. Once the gear broke off, the right wing came in contact with the ground causing significant damage to the wing.

Pilot's risk mitigation plan:

The pilot would increase the width of the runway come summer, and the pilot would use the helicopter instead of the airplane during the winter months.

As the FAA filed it

PILOT STATEMENT TAKEN BY PHONE AT 1325.

WHILE BACK TAXING ON A NARROW SNOW PACKED RUNWAY, WITH STRAIGHT SKIS INSTALLED, AT ABOUT 15 TO 20 MILES PER HOUR, THE AIRCRAFT HIT A SNOW DRIFT.

THIS CAUSED THE AIRCRAFT TO SINK AND PULL TO THE LEFT.

THE PILOT APPLIED POWER TO GET THE AIRCRAFT BACK ON THE RUNWAY.

THAT IN TURN, CAUSED THE LEFT WING TO STRIKE A SMALL TREE BRANCH, ABOUT 3 TO 4 INCHES IN DIAMETER. WHICH MADE THE AIRCRAFT YAW TO THE LEFT, EXERTING A SIDE LOAD ON THE RIGHT LANDING GEAR WHICH CAUSED IT TO BRAKE OFF. ONCE THE GEAR BROKE OFF, THE RIGHT WING CAME IN CONTACT WITH THE GROUND CAUSING SIGNIFICANT DAMAGE TO THE WING.

PILOT'S RISK MITIGATION PLAN:

THE PILOT WOULD INCREASE THE WIDTH OF THE RUNWAY COME SUMMER, AND THE PILOT WOULD USE THE HELICOPTER INSTEAD OF THE AIRPLANE DURING THE WINTER MONTHS.

NTSB investigation

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

Other reports on N7741A · 2

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