ERA12CA027

NTSB accident investigation · Ica Brasov IS-29D2 · Benton, TN · October 14, 2011

Accident · No injuriesData collectionFinal report
Date
October 14, 2011, 16:00 local (20:00 UTC)
Place
Benton, TN
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Approach
Aircraft
N1339XIca Brasov IS-29D2
Defining event
Approach-VFR pattern final: Controlled flight into terr/obj (CFIT)
Weather
Visual (VMC) · Day
Status
Completed · report February 16, 2012
Report
Approved by Office Director
NTSB office
Eastern Region Aviation
Parties
FAA/FSDO
FAA report
20111014022999A
Case key
82071

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 pilot's improper in-flight planning, which resulted in a low-altitude traffic pattern entry and subsequent collision with telephone wires.

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.

Action: incorrect action performancePersonnel issues › Action/decision · PilotIca Brasov IS-29D2: 1 caseAll aircraft: 1,386 casesProbable cause
Object/animal/substance: wireEnvironmental issues › Physical environment · Contributed to outcomeIca Brasov IS-29D2: 1 caseAll aircraft: 588 cases

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 of the glider stated that he was returning to the airport at the conclusion of a 1.5-hour flight. The pilot approached the airport at a slow airspeed and a lower-than-normal altitude due to a misinterpretation of the altimeter reading. The pilot continued the approach for landing, and the glider struck telephone wires on the final leg of the traffic pattern. The glider sustained substantial damage to the wing spar and tailboom. The pilot reported there were no preaccident mechanical malfunctions or anomalies with the glider.

Factual narrative

The pilot of the glider stated that he was returning to the airport at the conclusion of a one-and-a-half hour flight, and approached the airport at a low altitude and slow airspeed. The pilot continued the approach for landing, and struck a telephone wire on the final leg of the traffic pattern. The glider sustained substantial damage to the wing spar and tail boom. The pilot reported there were no mechanical malfunctions or anomalies with the glider.

Aircraft

Registration
N1339X
Reported as
Ica Brasov IS-29D2
Category
Glider
Serial number
92
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Tampa Bay Soaring Society
Registered owner
Tampa Bay Soaring Society
Airworthiness certificate
Standard, Normal
Departed
92A · Benton, TN
Destination
92A · Benton, TN
Flight plan
Unknown
Airport
92A · Chilhowee Gliderport, runway 03, 2,600 × 200 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

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
64
Injuries
None
Certificate
Private
Last flight review
October 1, 2011
Seat
Single
Flight hours
3,000 total · 67 in this make and model · 2,500 as pilot in command · 14 in the last 90 days · 9 in the last 30 days · 0 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
290° at 13 knots, gusting 28
Visibility
10 statute miles
Lowest ceiling
None
Temperature
75 °F, dew point 43 °F
Altimeter
29.86 inHg
Observed at
CHA, 32 nm away

Docket · 1

The files NTSB released with the investigation on January 4, 2012, on NTSB’s docket system: statements, records, photos and specialists’ reports. 351 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.