- Registered owners
- Helgersen William A SrHelgersen Helen E
- Location
- Mokena, IL
- Owner type
- Partnership
- Serial number
- 303
- Year built
- 1973
- Type
- Glider
- Engine
- None
- Airworthiness
- Standard, glider
- Airworthiness date
- October 10, 1973
- Certificate issued
- November 14, 2020
- Expires
- November 30, 2027
- Mode S code
- A8AD0E
From the FAA registry file of October 24, 2026.
On this page
Airworthiness directives that may apply · 4
Matched by this aircraft’s airframe and engine models. Each AD’s applicability may narrow it by serial number, part number or equipment.
| 1978 | 1 |
|---|---|
| 1987 | 1 |
| 1988 | 2 |
Information bulletins that may apply
Advisory, not mandatory.
No bulletins matched this aircraft’s models
NTSB investigations · 2
Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model.
NTSB CEN25LA311Accident · No injuriesClass 4 · LimitedFinal reportMonee, ILThe student pilot’s failure to maintain airspeed and altitude resulting in a collision with the ground during the base to final turn.NTSB BFO85LA053Accident · Serious injuriesLimited investigationFinal reportWarrenton, VAAfter liftoff both the PIC and the plt getting checked out in the Schweizer sgs 2-33A stated that they encountered moderate turbulence in the area. When the sailplane reched approximately 200 ft AGL the tom rope separated from the aircraft and N65818 was…
FAA incident reports · 2
FAA accident and incident reports matched to this aircraft by N-number and event date, checked against the reported make and model.
Accident 20250806012719ALanding: Approach · Monee, ILOn August 6th, 2025 at approximately 05:19 pm CDT, a student pilot was operating a Schweizer sgs 2-33 glider in the vicinity of bult field, C56 on a solo flight. The pilot, after being released from the tow pilot and spending some time in the air, returned to…Accident 19850707034609ATo Init Climb(1st Pwr Reduct) · Warrenton, VATurbulence on tow. At 200 ft AGL rope separated from tow plane. Glider crash landed. No defects in tow release.
Service difficulty reports
No reports matched to N65818General aviation reporting is voluntary. Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model. Reports on Schweizer SGS 2-33A aircraft
STCs that may be installed · 4
Approved for this aircraft’s airframe or engine model. The registry doesn’t record which STCs an aircraft has; its records do.
Airframe · Schweizer SGS 2-33A
STC SA01734SEApplication of Stewart Systems synthetic fabric covering system to aircraft fuselage, wings, tail surfaces, control surfaces and related parts.STC SG01164CHInstall Cooper superflite 102 fabric.STC SG1186GLSurrendered and incorporated into STC SG01164CH.STC SG305GLInstall full swivel tail wheel, Cronig P/N SK-1, utilizing existing mounting points, bolts and hardware.