LAX95LA317

NTSB accident investigation · Piper PA-18-150 · Yuma, AZ · August 30, 1995

Accident · No injuriesLimited investigationFinal report
Date
August 30, 1995, 15:30 local (22:30 UTC)
Place
Yuma, AZ
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N91008Piper PA-18-150
Weather
Visual (VMC) · Day
Status
Completed · report February 27, 1996
Report
Approved by Office Director
FAA report
19950830027129A
Case key
29205

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 flight instructor's inadequate supervision of the flight and the failure of both pilots to maintain directional control.

Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

Loss of control - on ground/waterLanding - roll
Directional control - not maintainedDual studentCause
Supervision - inadequatePilot in command(cfi)Cause
Directional control - not maintainedPilot in command(cfi)Cause
Ground loop/swerve - inadvertentPilot in command(cfi)
In flight collision with terrain/waterLanding - roll

Analysis

The aircraft owner stated that he took delivery of the aircraft that morning and hired a flight instructor to accompany him back to his home airport because he had no experience in conventional gear aircraft. The pilot said the instructor was talking him through a landing on runway 17 and shortly after touchdown the aircraft began veering to the right. The instructor applied a left rudder correction and the aircraft ground looped to the left.

Factual narrative

On August 30, 1995, at 1530 mountain standard time, a Piper PA-18-150, N91008, ground looped on landing at Yuma, Arizona. The aircraft was owned and operated by the private pilot, who purchased the aircraft that morning. Visual meteorological conditions prevailed at the time and a VFR flight plan was filed for the cross-country flight. The aircraft sustained substantial damage. Neither the private pilot nor the commercial pilot/flight instructor onboard were injured. The flight originated at Tucson, Arizona, on the day of the accident at 1200 as a combined cross-country delivery and dual instructional flight for the new owner.

In a telephone interview, the new owner stated that he took delivery of the aircraft that morning and hired a flight instructor to accompany him back to his home airport because he had no experience in conventional gear aircraft. The pilot said the instructor was talking him through a landing on runway 17 and shortly after touchdown the aircraft began veering to the right. The instructor applied a left rudder correction and the aircraft ground looped to the left. The aircraft incurred structural damage to the right wing spar.

Aircraft

Registration
N91008
Reported as
Piper PA-18-150
Category
Airplane
Serial number
18-8109061
Airframe hours
686
Engine
Lycoming O-320-A2B, 150 horsepower, reciprocating
Damage
Substantial damage
Flight
Instructional · Part 91
Registered owner
Michael K. Macintosh
Airworthiness certificate
Standard, Normal
Last inspection
Annual · November 16, 1994 · 86 hours before
Departed
TUS · Tucson, AZ
Destination
YUM
Flight plan
VFR
Airport
YUM · Yuma International, runway 17, 5,710 × 150 ft, asphalt

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
24
Certificates
Flight instructor, Commercial
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--no waivers/lim.
Seat
Rear
Flight hours
431 total · 3 in this make and model · 385 as pilot in command · 118 in the last 90 days · 36 in the last 30 days · 5 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
160° at 10 knots
Visibility
10 statute miles
Lowest ceiling
15,000 ft broken
Temperature
102 °F, dew point 73 °F
Altimeter
29.00 inHg
Observed at
YUM

FAA reports on this event · 1

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