WPR10LA426

NTSB accident investigation · Grob-Werke G 120A · Buckeye, AZ · August 24, 2010

Accident · No injuriesLimited investigationFinal report
Date
August 24, 2010, 14:07 local (21:07 UTC)
Place
Buckeye, AZ
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N865AFGrob-Werke G 120A
Defining event
Landing-flare/touchdown: Hard landing
Weather
Visual (VMC) · Day
Status
Completed · report March 16, 2011
Report
Approved by Office Director
NTSB office
Western Pacific Region
Parties
Federal Aviation Administration
FAA report
20100824044089A
Case key
77069

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 student pilot's improper flare, which resulted in a hard landing.

Findings · 2

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.

Use of equip/info: aircraft controlPersonnel issues › Task performance · PilotGrob-Werke G 120A: 2 casesAll aircraft: 9,295 casesProbable cause
Performance/control parameters: landing flareAircraft › Aircraft oper/perf/capability · Not attained/maintainedGrob-Werke G 120A: 1 caseAll aircraft: 1,285 casesProbable cause

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 student pilot reported that during his first solo flight the first touchdown was smooth; however, the airplane bounced and became airborne. The second touchdown was much firmer. On the third touchdown the airplane impacted the ground in a nose-low attitude, whereupon the nose gear assembly and several structural components in the composite fuselage broke.

Factual narrative

On August 24, 2010, about 1407 mountain standard time, a Grob-Werke G 120A, N865AF, operated by Airline Training Center, Goodyear, Arizona, made a hard bounced landing at the Buckeye Municipal Airport, Buckeye, Arizona. The airplane was substantially damaged. The student pilot, who was performing his first solo instructional flight, was not injured. Visual meteorological conditions prevailed at the time. The flight was performed under the provisions of 14 Code of Federal Regulations Part 91, and it originated from Buckeye about 1400. According to the student pilot, he performed three landings with his flight instructor and then was authorized to make his first solo flight. After takeoff, he performed a closed traffic pattern and attempted to land. The student opined that his first touchdown was relatively smooth. However, the airplane became airborne, and the second touchdown was "much firmer." On the third touchdown, described by the pilot as "very firm," the airplane impacted the ground in a nose-low attitude. The nose wheel impacted the ground before the main landing gear, and the nose gear collapsed. An examination of the airplane revealed the nose gear assembly and several structural components in the composite fuselage were broken. (For additional details regarding damage, see the report from Grob regarding its structural examination.)

Aircraft

Registration
N865AF
Reported as
Grob-Werke G 120A
Category
Airplane
Serial number
85005
Airframe hours
5,249
Engine
Lycoming AEIO-540 SER, 260 horsepower, reciprocating
Damage
Substantial damage
Flight
Instructional · Part 91
Operator
Airline Training Center Arizona Inc
Registered owner
Airline Training Center Arizona Inc
Airworthiness certificate
Standard, Aerobatic; Standard, Utility
Last inspection
AAIP · August 15, 2010 · 14 hours before
Departed
BXK · Buckeye, AZ
Destination
BXK · Buckeye, AZ
Airport
BXK · Buckeye Municipal, runway 17, 5,500 × 75 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
Student pilot
Age
25
Injuries
None
Certificate
Student
Medical
Class 3, Without waivers/limitations
Seat
Left
Flight hours
40 total · 40 in this make and model · 25 in the last 90 days · 25 in the last 30 days · 3 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
110° at 7 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
108 °F
Altimeter
29.79 inHg

Docket · 3

The files NTSB released with the investigation on September 29, 2010, on NTSB’s docket system: statements, records, photos and specialists’ reports. 1.2 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.