ERA10CA500

NTSB accident investigation · Boeing A75N1 · Bealeton, VA · September 24, 2010

Accident · No injuriesData collectionFinal report
Date
September 24, 2010, 12:00 local (16:00 UTC)
Place
Bealeton, VA
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N65648Boeing A75N1
Defining event
Landing-flare/touchdown: Loss of control on ground
Weather
Visual (VMC) · Day
Status
Completed · report March 16, 2011
Report
Approved by Office Director
NTSB office
Eastern Region Aviation
Parties
FAA/FSDO
FAA report
20100924055479A
Case key
77393

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 pilot under instruction’s improper recovery from a bounced landing and the flight instructor’s delayed remedial action, which resulted in a ground loop and collision with trees.

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.

Performance/control parameters: landing flareAircraft › Aircraft oper/perf/capability · Not attained/maintainedBoeing A75N1(PT17): 1 caseAll aircraft: 1,285 casesProbable cause
Use of equip/info: aircraft controlPersonnel issues › Task performance · PilotBoeing A75N1(PT17): 33 casesAll aircraft: 9,295 casesProbable cause
Action: delayed actionPersonnel issues › Action/decision · Instructor/check pilotBoeing A75N1(PT17): 2 casesAll aircraft: 894 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

According to the certificated flight instructor (CFI), the purpose of the flight was for the pilot under instruction (PUI) to conduct airwork and grass field landings. The PUI was seated in the rear seat and the CFI was seated in the front seat. The PUI stated that the CFI was on the flight controls in conjunction with him since it was going to be his first landing on a grass strip. The CFI stated that he advised the PUI that the PUI had authority over the flight controls to which he received an acknowledgement. On the first touchdown, the tailwheel-equipped airplane bounced and became airborne, then touched down a second time. After the second touchdown, when the airplane began turning to the right, the flight instructor took over authority of the flight controls and applied left rudder, which was ineffective. The airplane then ground-looped 90 degrees and struck a cluster of trees. Post-accident examination revealed that the airplane incurred damage to both lower wings. Both pilots reported no preimpact mechanical malfunctions or anomalies with the airplane.

Factual narrative

According to the flight instructor, the flight departed to conduct airwork and grass field landings. The pilot under instruction was seated in the rear seat, and the flight instructor was seated in the front seat. The pilot under instruction stated that the flight instructor was on the flight controls at the same time since it was going to be his first landing on a grass strip. However, the flight instructor stated that he advised the pilot under instruction, “you have the controls,” and received acknowledgement. On the first touchdown to runway 28, the tailwheel-equipped airplane bounced and became airborne, then touched down a second time. After the second touchdown, when the airplane began turning to the right, the flight instructor “got on the controls” and added left rudder, which was “ineffective.” The airplane then ground-looped 90 degrees and struck a clump of spruce trees. Post-accident examination revealed that the airplane incurred damage to both lower wings. Neither pilot reported any preexisting mechanical malfunctions or anomalies with the airplane, and winds were reported as being from 200 degrees true at 7 knots.

Aircraft

Registration
N65648
Reported as
Boeing A75N1
Category
Airplane
Serial number
75-972
Airframe hours
3,985
Engine
Continental W670-6N, 220 horsepower, reciprocating
Damage
Substantial damage
Flight
Instructional · Part 91
Operator
Pegasus Air LLC
Registered owner
Pegasus Air LLC
Airworthiness certificate
Standard, Aerobatic
Last inspection
Annual · March 10, 2010
Departed
HEF · Manassas, VA
Destination
29VA · Bealton, VA
Flight plan
VFR
Airport
29VA · Rhynalds Ranch Airport, runway 28, 2,500 × 120 ft, grass/turf

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
Flight instructor
Age
87
Injuries
None
Certificates
Flight instructor, Commercial, Airline transport
Airplane ratings
Multi-engine land
Instrument ratings
Airplane
Medical
Class 2, With waivers/limitations
Last flight review
November 22, 2009
Seat
Front
Flight hours
20,995 total · 60 in this make and model · 10,000 as pilot in command · 17 in the last 30 days
Role
Pilot
Age
26
Injuries
None
Certificate
Private
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 3, With waivers/limitations
Last flight review
June 26, 2010
Seat
Rear
Flight hours
665 total · 13 in this make and model · 588 as pilot in command · 10 in the last 90 days · 4 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
200° at 7 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
93 °F, dew point 57 °F
Altimeter
30.07 inHg
Observed at
HWY, 4 nm away

Docket · 7

The files NTSB released with the investigation on October 31, 2010, on NTSB’s docket system: statements, records, photos and specialists’ reports. 2.8 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.