# N3621B: 1981 Schweizer SGS 1-36

- Status: Valid registration
- Airframe: [Schweizer SGS 1-36](https://openairdocs.org/model/schweizer-sgs-1-36) (registry code 8050153, 1 seats)
- Engine: [NONE](https://openairdocs.org/engine/none) (registry code 00000)
- Data sheets: [TCDS G5EA](https://openairdocs.org/tcds/G5EA) (K & L Soaring LLC) (OpenAirDocs)
- Serial number: 36
- Year built: 1981
- Type: Glider
- Engine type: None
- Airworthiness: Standard, glider
- Airworthiness date: August 7, 1981
- Certificate issued: October 6, 2023
- Expires: October 31, 2030
- Mode S code: A41637
- Registered owner: [Tampa Bay Soaring Society Inc](https://openairdocs.org/faa-owner/TAMPA%20BAY%20SOARING%20SOCIETY%20INC)
- Location: [Zephyrhills, FL](https://openairdocs.org/faa-place/FL/Zephyrhills)
- Owner type: Corporation
- Owner's area on the map: 28.2358° N, 82.1776° W: Placed by OpenAirDocs at the center of ZIP code 33542, within about 2 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=3621B
- Page: https://openairdocs.org/aircraft/N3621B

From the FAA registry file of October 24, 2026. ADs below are matched by the registry's airframe and engine model codes. They may apply; each AD's applicability can narrow it by serial number, part number or installed equipment. This is not a compliance determination.

## ADs that may apply (OpenAirDocs): 2 in force

### Matched by airframe (Schweizer SGS 1-36)

- [AD 87-17-01](https://openairdocs.org/ad/87-17-01): Tow Release Installation · K & L Soaring SGS 1-23, SGS 1-23D, SGS 1-23F and 25 more. Effective Aug 19, 1988
- [AD 87-02-01](https://openairdocs.org/ad/87-02-01): Tow-Release Installation Inspection · K & L Soaring SGM 2-37, SGS 1-23, SGS 1-23D and 32 more. Effective Jan 21, 1987

### Matched by engine (NONE)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations (1)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB DEN84LA035](https://openairdocs.org/ntsb/DEN84LA035), Dec 1, 1983: Schweizer SGS1-36 (N3621B), Colorado Spring, CO, substantial damage

## FAA accident and incident reports (1)

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [Accident 19831201061059A](https://openairdocs.org/incident/19831201061059A), Dec 1, 1983: Scwzer SGS136 (N3621B), Colorado Spring, CO, Substantial damage. Pilot made landing while aircraft was drifting sideways causing substantial damage.

## Service difficulty reports

None filed for this aircraft. Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model.

## STCs that may be installed (OpenAirDocs) (1)

Approved for this aircraft's airframe or engine model, in force first, then newest. The registry doesn't record which STCs an aircraft has; its records do.

### Approved for the airframe (Schweizer SGS 1-36)

- [STC SA01734SE](https://openairdocs.org/stc/SA01734SE): Application of Stewart Systems synthetic fabric covering system to aircraft fuselage, wings, tail surfaces, control surfaces and related parts. Andrew D. Humphrey

## Earlier aircraft with N3621B

The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N3621B before.

- [Cancelled 1971-03-23](https://openairdocs.org/deregistered/N3621B-1971-03-23): Beech E18S, S/N BA-17. Owner: [Manhattan Construction Company](https://openairdocs.org/faa-owner/MANHATTAN%20CONSTRUCTION%20COMPANY), [Muskogee, OK](https://openairdocs.org/faa-place/OK/Muskogee)

## Related

- Other Schweizer SGS 1-36 aircraft: https://openairdocs.org/model/schweizer-sgs-1-36/aircraft.md
- The NONE engine: https://openairdocs.org/engine/none.md

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