LAX96LA307

NTSB accident investigation · Cessna A185F · Casa Grande, AZ · August 4, 1996

Accident · No injuriesLimited investigationFinal report
Date
August 4, 1996, 06:30 local (13:30 UTC)
Place
Casa Grande, AZ
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N2431YCessna A185F
Weather
Visual (VMC) · Day
Status
Completed · report May 30, 1997
Report
Approved by Office Director
FAA report
19960804022719A
Case key
29537

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 student pilot's failure to maintain directional control of the airplane, which resulted in an inadvertent ground loop. Factors relating to the accident were: the student pilot's inadequate training and lack of certification (endorsement).

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 maintainedPilot in commandCause
Ground loop/swerve - inadvertentPilot in commandCause
Inadequate trainingPilot in commandFactor
Lack of certificationPilot in commandFactor
On ground/water encounter with terrain/waterLanding - roll

Analysis

The student pilot lost directional control and inadvertently ground looped the airplane after practicing touch-and-go landings and takeoffs. The student received dual instruction in the airplane about 2 months before the accident, but he did not receive the appropriate endorsement to solo the accident airplane. Postaccident examination disclosed no evidence of any preexisting malfunction or failure. The student pilot reported that the surface winds were slightly breezy.

Factual narrative

On August 4, 1996, at 0630 hours mountain standard time, a Cessna A185F, N2431Y, lost directional control during the landing rollout on runway 05 at Casa Grande Airport, Casa Grande, Arizona. The pilot was completing a visual flight rules personal flight. The airplane, operated by Southwest Industrial Rigging, Casa Grande, sustained substantial damage. The noncertificated student pilot, the sole occupant, was not injured. The flight originated at the University of Arizona airstrip, Maricopa, Arizona, at 0620.

This accident was initially reported as an incident. During the repair, maintenance personnel found major structural damage.

The pilot told an Federal Aviation Administration (FAA) inspector from the Scottsdale, Arizona, Flight Standards District Office that he initially departed Chandler, Arizona, airport about 0545 hours, and flew to the University of Arizona airstrip and executed six touch-and-go landings and takeoffs. He then flew to Casa Grande Airport. He said that he inadvertently "ground looped" the airplane on the landing roll and that the surface winds were "slightly breezy."

The FAA inspector reported that the student pilot did not have the appropriate solo endorsement for the accident airplane. The inspector stated, however, that conversations with the student pilot's previous instructors confirmed that he received some dual instruction in the accident airplane about 2 months prior to the accident.

Aircraft

Registration
N2431Y
Reported as
Cessna A185F
Category
Airplane
Serial number
18503566
Engine
Continental IO-520, 280 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Southwest Industrial Rigging
Airworthiness certificate
Standard, Normal
Departed
3AZ2
Destination
CZG
Airport
CGZ · Casa Grande Municipal, runway 5, 5,200 × 100 ft, asphalt

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
44
Certificate
Student
Medical
Class 3, Valid Medical--no waivers/lim.
Seat
Left
Flight hours
250 total · 40 in this make and model

Weather

Conditions
Visual (VMC) · Day
Wind
350° at 5 knots
Visibility
50 statute miles
Lowest ceiling
None
Temperature
84 °F

FAA reports on this event · 1

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