20240915013629A

Accident · Substantial damage

FAA accident report · Piper PA-18-150 · Palmer, AK · September 15, 2024

Date
September 15, 2024 · 14:50 local
Place
Palmer, AK
Phase of flight
Landing: Rollout
Operating rules
General operating rules (Part 91)
Damage
Substantial damage
Aircraft
N4118Z
NTSB investigation
NTSBANC24LA100
Reported as
Piper PA-18-150
People aboard
1
Fatal injuries
0
Other injuries
0
Pilot’s certificate
Commercial pilot
Pilot’s flight hours
5,220 total210 in this make and model25 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.

Pilot stated that he noticed a loose dzus fastener that was allowing a cargo door to vibrate on the left side. He didn't want to risk any damage to the door or paint so he decided to initiate a landing to tighten the fastener . He chose a gravel bar on the knik river and overflew the area three times to look for obstacles. Pilot performed the landing which was initially without incident, however, the aircraft encountered a soft spot in the sand which caused the brakes to lock leading to the aircraft spinning to the left and flipping over, which caused damage to the right wing tip and rudder, as well as causing the prop to strike the ground.

As the FAA filed it

PILOT STATED THAT HE NOTICED A LOOSE DZUS FASTENER THAT WAS ALLOWING A CARGO DOOR TO VIBRATE ON THE LEFT SIDE. HE DIDN'T WANT TO RISK ANY DAMAGE TO THE DOOR OR PAINT SO HE DECIDED TO INITIATE A LANDING TO TIGHTEN THE FASTENER . HE CHOSE A GRAVEL BAR ON THE KNIK RIVER AND OVERFLEW THE AREA THREE TIMES TO LOOK FOR OBSTACLES. PILOT PERFORMED THE LANDING WHICH WAS INITIALLY WITHOUT INCIDENT, HOWEVER, THE AIRCRAFT ENCOUNTERED A SOFT SPOT IN THE SAND WHICH CAUSED THE BRAKES TO LOCK LEADING TO THE AIRCRAFT SPINNING TO THE LEFT AND FLIPPING OVER, WHICH CAUSED DAMAGE TO THE RIGHT WING TIP AND RUDDER, AS WELL AS CAUSING THE PROP TO STRIKE 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.

Other reports on N4118Z · 1

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