20220829015269A

Accident · Substantial damage

FAA accident report · Piper PA-18-135 · Knik Glacier, AK · August 29, 2022

Date
August 29, 2022 · 18:30 local
Place
Knik Glacier, AK
Airport
N/A
Phase of flight
Landing: Rollout
Operating rules
General operating rules (Part 91)
Damage
Substantial damage
Aircraft
N1129
NTSB investigation
NTSBANC22LA074
Reported as
Piper PA-18-135
People aboard
1
Fatal injuries
0
Other injuries
0
Pilot’s certificate
Private pilot
Pilot’s flight hours
100 total39 in this make and model35 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 August 29, 2022, about 1830 local time, PIC stated he was flying near Knik Glacier, AK, where he observed the area prior to landing. He attempted to make a slow approach and land on an unfamiliar gravel/sandbar. PIC stated that landing area was clear of obstructions, visibility was clear, and very little to no crosswind or headwind. Upon touchdown, transition to landing rollout, and as the tail wheel touched down. The PIC felt as if there were not enough wind over rudder and the aircraft’s tail began to yaw left. PIC immediately attempted to use opposite rudder to compensate as the aircraft began to ground-loop to the left. Just as the rudder correction was put in, the left main landing gear tire hit a gravel divot; forcing the aircraft to continue spinning to the left. The aircraft continued to ground-loop; resulting in the left wing and elevator making contact with the ground.

As the FAA filed it

ON AUGUST 29, 2022, ABOUT 1830 LOCAL TIME, PIC STATED HE WAS FLYING NEAR KNIK GLACIER, AK, WHERE HE OBSERVED THE AREA PRIOR TO LANDING. HE ATTEMPTED TO MAKE A SLOW APPROACH AND LAND ON AN UNFAMILIAR GRAVEL/SANDBAR. PIC STATED THAT LANDING AREA WAS CLEAR OF OBSTRUCTIONS, VISIBILITY WAS CLEAR, AND VERY LITTLE TO NO CROSSWIND OR HEADWIND. UPON TOUCHDOWN, TRANSITION TO LANDING ROLLOUT, AND AS THE TAIL WHEEL TOUCHED DOWN. THE PIC FELT AS IF THERE WERE NOT ENOUGH WIND OVER RUDDER AND THE AIRCRAFT’S TAIL BEGAN TO YAW LEFT. PIC IMMEDIATELY ATTEMPTED TO USE OPPOSITE RUDDER TO COMPENSATE AS THE AIRCRAFT BEGAN TO GROUND-LOOP TO THE LEFT. JUST AS THE RUDDER CORRECTION WAS PUT IN, THE LEFT MAIN LANDING GEAR TIRE HIT A GRAVEL DIVOT; FORCING THE AIRCRAFT TO CONTINUE SPINNING TO THE LEFT. THE AIRCRAFT CONTINUED TO GROUND-LOOP; RESULTING IN THE LEFT WING AND ELEVATOR MAKING CONTACT WITH THE GROUND.

NTSB investigation

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