WPR18LA184

NTSB accident investigation · Piper PA31 · Page, AZ · June 16, 2018

Accident · No injuriesClass 3 · LimitedFinal report
Date
June 16, 2018, 13:00 local (20:00 UTC)
Place
Page, AZ
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N621PGPiper PA31
Defining event
Landing-landing roll: Loss of control on ground
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
Investigation class
Class 3
NTSB office
Western Pacific Region
Parties
Federal Aviation Administration
FAA report
20180616015529A
Case key
97639

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

On this page

Probable cause

The failure of the airplane’s nose wheel steering/centering mechanism, which resulted in a loss of directional control and subsequent runway excursion.

Findings · 1

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

The pilot stated that, during the landing roll, he was unable to maintain directional control, and the airplane veered right and exited the runway, where the nose landing gear collapsed. Examination of the airplane revealed that the nose gear steering/centering mechanism was fractured, which resulted in the improper alignment of the nose landing gear when it was extended, and a subsequent loss of directional control. Three skid marks were visible from the runway centerline to where the airplane came to rest. The center skid mark was consistent with the nose landing gear and was darker and was about 2-3 times the width of the marks from the main tires; consistent with the nose landing gear's misalignment during the landing roll.

Factual narrative

On June 16, 2018, about 1300 mountain standard time, a Piper PA-31-350 airplane, N621PG, was substantially damaged when it was involved in an accident near Page, Arizona. The two commercial pilots were not injured. The airplane was operated as a Title 14 Code of Federal Regulations Part 91 personal flight. According to the pilot, during the landing roll, the airplane veered to the right and he was unable to maintain directional control. The airplane subsequently exited the runway and the nose landing gear collapsed. Examination of the airplane by a Federal Aviation Administration inspector revealed that the nose steering/centering mechanism had fractured and separated from the nose wheel assembly, resulting in a misalignment when the gear was extended. According to the airport manager, no foreign object debris was located on the runway or grassy area off the right side of the runway where the airplane came to rest after the landing. A review of accident site pictures revealed that three skid marks were visible from the runway centerline to where the airplane came to rest. The center skid mark, corresponding to the nose landing gear, was darker and about 2 to 3 times wider than the outside skid marks, which corresponded to the main landing gear.

Aircraft

Registration
N621PG
Reported as
Piper PA31 (350)
Category
Airplane
Serial number
31-7652049
Built
1975
Engines
Lycoming TIO-540 Series, reciprocatingLycomng TIO-540 Series, reciprocating
Damage
Substantial damage
Flight
Instructional · Part 91
Operator
Dakota Territory Tours Inc
Airworthiness certificate
Standard, Normal
Destination
PGA · Page, AZ
Airport
PGA · Page Muni, runway 15, 5,950 × 150 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 · 2

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
51
Injuries
None
Certificate
Commercial
Airplane ratings
Single-engine land, Single-engine sea
Instrument ratings
Airplane
Medical
Class 2, With waivers/limitations
Role
Pilot
Age
46
Injuries
None
Certificate
Commercial
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Unknown

Weather

Conditions
Visual (VMC) · Day
Wind
200° at 10 knots, gusting 17
Visibility
10 statute miles
Lowest ceiling
10,000 ft broken
Temperature
79 °F, dew point 52 °F
Altimeter
29.78 inHg
Observed at
PGA

Docket · 2

The files NTSB released with the investigation on June 2, 2021, on NTSB’s docket system: statements, records, photos and specialists’ reports. 247 KB 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.