N17901

Substantial
None

Schweizer SGS 2-33A S/N: 291

Accident Details

Date
Sunday, July 12, 1998
NTSB Number
CHI98LA268
Location
INDIANAPOLIS, IN
Event ID
20001211X10519
Coordinates
39.770236, -86.109497
Aircraft Damage
Substantial
Highest Injury
None
Fatalities
0
Serious Injuries
0
Minor Injuries
0
Uninjured
2
Total Aboard
2

Probable Cause and Findings

the delayed in-flight decision of the pilot in command to take control of the aircraft and the proper airspeed not obtained/maintained by the pilot in command which resulted in a stall. A factor to the accident was the runway light.

Aircraft Information

Registration
Make
SCHWEIZER
Serial Number
291
Engine Type
None
Year Built
1973
Model / ICAO
SGS 2-33A
Aircraft Type
Glider
No. of Engines
0
Seats
2
FAA Model
SGS 2-33A

Registered Owner (Current)

Name
WISCONSIN SOARING SOCIETY INC
Address
W333S271 GLEN OAKS DR
City
DELAFIELD
State / Zip Code
WI 53018-3103
Country
United States

Analysis

On July 12, 1998, at 1100 eastern standard time (edt), a Schweizer SGS 2-33A, N17901, piloted by a Certified Flight Instructor (CFI), sustained substantial damage when it collided with a taxiway light during landing roll on runway 18 (5000' x. 100', concrete, dry) at Indianapolis Terry Airport, near Indianapolis, Indiana. Visual meteorological conditions prevailed at the time of the accident. The 14 CFR Part 91 instructional flight was not operating on a flight plan. The CFI and student reported no injuries. The local flight departed Indianapolis Terry Airport at 1055 edt.

According to the pilot-in-command's written statement, he was giving dual instruction to a student pilot at the time of the accident. The CFI stated that when they were maneuvering the aircraft to enter the traffic pattern for the grass area, which parallels runway 18, he noticed that another glider was also entering the same traffic pattern. The student pilot initiated a radio transmission to the pattern traffic that they intended to execute a left pattern for the grass landing area. The CFI also made a transmission to the other glider that they were directly behind them. The CFI stated that there was no response. The CFI decided to alter their traffic pattern to land on runway 18, due to the other traffic that was ahead of their glider.

The CFI stated that when they turned base to final they were approximately 250' above ground level (agl). The CFI told the student to use "Full" spoilers to bring the aircraft back on a normal glide path to the runway. The CFI stated that at approximately 100' agl the student had "Full" spoilers deployed and had an excessive nose down attitude. The CFI told the student "Close" the spoilers and bring the nose up to reduce the excessive airspeed. The CFI stated that the student began to bring the nose up, without closing the spoilers, and that he took control of the aircraft at this point. The CFI closed the spoilers completely but the aircraft was already entering a stall. The CFI stated that he reduced the angle of attack in order to regain airspeed and then flared close to the ground. The CFI stated that the aircraft "Pancaked-in, a landing hard enough to throw me into the shoulder straps and my head down so that briefly I could not see outside." The aircraft drifted to right side of the runway and the right wing impacted a runway light before coming to a stop.

In the written statement by the pilot in command, the CFI stated, "My errors were not taking control earlier and not announcing to the student that I had done so when I grabbed the controls."

Data Source

Data provided by the National Transportation Safety Board (NTSB). For more information on this event, visit the NTSB Records Search website. NTSB# CHI98LA268