WPR22LA180

NTSB accident investigation · Piper PA-24-400 · Benson, AZ · April 15, 2022

Accident · No injuriesClass 3 · LimitedFinal report
Date
April 15, 2022, 05:30 local (12:30 UTC)
Place
Benson, AZ
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N8493PPiper PA-24-400
Defining event
Landing: Landing gear not configured
Weather
Visual (VMC) · Dawn
Status
Completed
Report
Approved by Office Director
Investigation class
Class 3
NTSB office
Western Pacific Region
Parties
FAA
FAA report
20220415008119A
Case key
105093

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

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Probable cause

The pilot’s failure to lower the landing gear on approach due to distraction.

Findings · 3

NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.

Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.

Analysis

According to the pilot, he was approaching the airport to land when a departing helicopter reported deer near the runway. The pilot stated that he turned on the landing lights, lowered the landing gear, and flew the approach. He did not see any deer activity and proceeded to land. Upon landing, the airplane began to shake, and the airplane stopped on the runway. The airplane came to rest on its belly and with the main landing gear partially extended. The nose gear was not visible due to the airplane’s resting position on the runway. The landing gear switch was found in the down position, and the gear motor circuit breaker was found popped. The airplane sustained substantial damage to the skins, frames, and stringers on the belly of the fuselage. During postaccident examination of the airplane, the popped gear motor circuit breaker was reset, and the landing gear was cycled up and down successfully using airplane power. No anomalies were noted with the landing gear system. Examination of the underside of the airplane revealed no damage to the main landing gear, wheels, or main gear doors. Examination of the nose gear showed abrasion damage to the face of the nose gear doors. The lack of damage to the main landing gear assemblies and the damage to the face of the nose gear doors was consistent with the gear being in the up position when the airplane touched down on the runway. Even though the pilot stated that he lowered the gear on approach, the evidence is consistent with the pilot failing to lower the gear on approach likely due to distraction from the report of deer near the runway. The gear motor circuit breaker popped because the landing gear switch was likely moved to the down position sometime after the airplane touched down while movement of the landing gear was restricted.

Factual narrative

On April 15, 2022, about 0530 mountain standard time, a Piper PA-24-400 airplane, N8493P, was substantially damaged when it was involved in an accident near Benson Municipal Airport (E95), Benson, Arizona. The pilot was not injured. The airplane was as operated as a Title 14 Code of Federal Regulations Part 91 personal flight. According to the pilot, he was approaching E95 to land when a departing helicopter reported deer near the runway. The pilot stated that he “turned on the landing lights, dropped the gear and started [his] approach to runway 10.” He did not see any deer activity and proceeded to land. Upon landing, the airplane began to shake and then stopped with its belly on the runway and the main landing gear partially extended. The nose gear was not visible due to the airplane’s resting position on the runway. According to personnel who recovered the airplane, the landing gear switch was in the down position at recovery. When the airplane was lifted off the runway, the landing gear remained in a partially extended position and did not operate when power was applied to the airplane and the landing gear switch was manipulated. The landing gear was subsequently lowered and locked into position when the emergency gear system was used. The airplane sustained substantial damage to the skins, frames, and stringers on the belly of the fuselage. During a postaccident examination, the airplane was placed on jack stands for an operational check of the landing gear system. The landing gear motor circuit breaker was found popped. The circuit breaker was reset, and the landing gear was subsequently cycled multiple times, with the landing gear being raised and lowered using the airplane’s electrical power and the landing gear switch. The gear position indicator lights operated normally when the gear changed positions. No damage was noted to the main landing gear wheels or gear doors or the nosewheel. Abrasion damage was noted to the face of both nose gear doors, consistent with the doors being closed during landing. The landing gear was extended to about the position that was observed during recovery. Both the nosewheel and nose gear doors extended about 5 inches below the fuselage. No preimpact anomalies were noted during the examination that would have precluded normal operation of the landing gear.

Aircraft

Registration
N8493P
Reported as
Piper PA-24-400
Category
Airplane
Serial number
26-73
Built
1964
Engine
Lycoming IO-720, 400 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Sonoran Sunrise Inc
Registered owner
Sonoran Sunrise Inc
Airworthiness certificate
Unknown
Departed
TUS · Tucson, AZ
Destination
Same as departure
Flight plan
VFR
Airport
31AZ · Benson, runway 10, 4,002 × 75 ft, asphalt
Equipment
Unknown

Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
68
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land
Instrument ratings
Airplane
Medical
Class 3, With waivers/limitations
Seat
Left
Flight hours
3,842 total · 3,400 in this make and model · 3,760 as pilot in command · 22 in the last 90 days · 10 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Dawn
Wind
Calm
Visibility
50 statute miles
Lowest ceiling
None

Docket · 5

The files NTSB released with the investigation on November 8, 2023, on NTSB’s docket system: statements, records, photos and specialists’ reports. 63.3 MB in all.

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.