ERA13CA077

NTSB accident investigation · Schweizer SGS 2-33A · Middletown, NY · December 2, 2012

Accident · No injuriesData collectionFinal report
Date
December 2, 2012, 14:54 local (19:54 UTC)
Place
Middletown, NY
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Approach
Aircraft
N5787SSchweizer SGS 2-33A
Defining event
Approach-VFR pattern final: Controlled flight into terr/obj (CFIT)
Weather
Visual (VMC) · Day
Status
Completed · report July 23, 2013
Report
Approved by Office Director
NTSB office
Eastern Region Aviation
Parties
FAA/FSDO
FAA report
20121202027249A
Case key
85742

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 altitude management in the landing pattern that caused the glider to impact trees on final approach.

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: altitudeAircraft › Aircraft oper/perf/capability · Not attained/maintainedSchweizer SGS 2-33A: 6 casesAll aircraft: 1,310 casesProbable cause
Object/animal/substance: tree(s)Environmental issues › Physical environment · Contributed to outcomeSchweizer SGS 2-33A: 4 casesAll aircraft: 933 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 student pilot, while on the downwind leg to runway 26, he "knew that he was too high" for a normal approach. He deployed the spoilers to full and extended the downwind leg to lose altitude. While turning onto base leg for final approach, he retracted the spoilers to one half thinking that he was still too high in the turn. The pilot stated that he flew into a pocket of air that caused the glider to sink. The pilot realized that he was going to be "quite" low and stated that he retracted the spoilers all the way in. While turning on to final approach, he clipped a tree with the left wing and the glider spun around to the left and came to rest in a tree, 25 feet above the ground. Post-accident examination of the airplane revealed that the left and right wing leading edges incurred substantial damage due to impact with trees. Both spoilers were found in the full extended position. The student pilot reported no pre-impact mechanical malfunctions or failures with the airplane that would have precluded normal operation.

Factual narrative

According to the student pilot, while on the downwind leg to runway 26, he "knew that he was too high" for a normal approach. He deployed the spoilers to full and extended the downwind leg to lose altitude. While turning onto base leg for final approach, he retracted the spoilers to one half thinking that he was still too high in the turn. The pilot stated that he flew into a pocket of air that caused the glider to sink. The pilot realized that he was going to be "quite" low and stated that he retracted the spoilers all the way in. While turning on to final approach, he clipped a tree with the left wing and the glider spun around to the left and came to rest in a tree, 25 feet above the ground. Post-accident examination of the airplane by a Federal Aviation Administration inspector revealed that the left and right wing leading edges incurred substantial damage due to impact with trees. Both spoilers were found in the full extended position. The student pilot reported no pre-impact mechanical malfunctions or failures with the airplane that would have precluded normal operation.

Aircraft

Registration
N5787S
Reported as
Schweizer SGS 2-33A
Category
Glider
Serial number
116
Airframe hours
3,358
Damage
Substantial damage
Flight
Instructional · Part 91
Operator
Valley Soaring Club Inc
Registered owner
Valley Soaring Club Inc
Airworthiness certificate
Standard, Utility
Last inspection
Annual · September 1, 2012
Departed
06N · Middletown, NY
Destination
06N · Middletown, NY
Airport
06N · Randall Airport

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
67
Injuries
None
Certificate
Student
Seat
Front
Flight hours
29 total · 29 in this make and model

Weather

Conditions
Visual (VMC) · Day
Wind
210° at 6 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
41 °F, dew point 41 °F
Altimeter
30.10 inHg
Observed at
KMGJ, 1 nm away

Docket · 4

The files NTSB released with the investigation on June 6, 2013, on NTSB’s docket system: statements, records, photos and specialists’ reports. 2.5 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.