# N903KB: 1957 Schleicher KA 6

- Status: Valid registration
- Airframe: [Schleicher KA 6](https://openairdocs.org/model/schleicher-ka-6) (registry code 3801525, 1 seats)
- Engine: [NONE](https://openairdocs.org/engine/none) (registry code 00000)
- Data sheets: [TCDS 7G1](https://openairdocs.org/tcds/7G1) (Alexander Schleicher GmbH & Co. Segelflugzeugbau) (OpenAirDocs)
- Serial number: 246
- Year built: 1957
- Type: Glider
- Engine type: None
- Airworthiness: Standard, glider
- Airworthiness date: March 25, 2003
- Certificate issued: July 21, 2023
- Expires: July 31, 2030
- Mode S code: AC7B34
- Registered owner: [Midwest Glider Conservancy Inc](https://openairdocs.org/faa-owner/MIDWEST%20GLIDER%20CONSERVANCY%20INC)
- Location: [Wichita, KS](https://openairdocs.org/faa-place/KS/Wichita)
- Owner type: Corporation
- Owner's area on the map: 37.7037° N, 97.2246° W: Placed by OpenAirDocs at the center of ZIP code 67206, 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=903KB
- Page: https://openairdocs.org/aircraft/N903KB

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): 4 in force

### Matched by airframe (Schleicher KA 6)

- [AD 2022-12-07](https://openairdocs.org/ad/2022-12-07): Elevator, Spar/Rib Structure · Alexander Schleicher GmbH & Co. Segelflugzeugbau Ka2B, Ka 6, Ka 6 B and 7 more. Effective Jul 21, 2022
- [AD 2013-16-05](https://openairdocs.org/ad/2013-16-05): Flight Controls · Alexander Schleicher AS-K 13, K 8, K 8 B and 7 more. Effective Oct 4, 2013
- [AD 64-09-06](https://openairdocs.org/ad/64-09-06): Airbrake Push Pull Rod · Alexander Schleicher K 8, K 8 B, Ka 6 and 15 more. Effective Sep 7, 1971
- [AD 64-14-06](https://openairdocs.org/ad/64-14-06): Horizontal Stabilizer Fittings · Alexander Schleicher Ka 6 and Ka2B. Effective Jul 23, 1964

### Matched by engine (NONE)

None in force.

### Historical (superseded or no longer in force)

- [AD 75-23-03](https://openairdocs.org/ad/75-23-03) (historical): Elevator and Control · Alexander Schleicher AS-K 13, K 8, K7 and 15 more. Effective Nov 14, 1975
- [AD 64-07-05](https://openairdocs.org/ad/64-07-05) (historical): Elevator Control Push Rods · Alexander Schleicher K 8, K 8 B, K7 and 8 more. Effective Apr 13, 1964

## Information bulletins (advisory) (1 in force)

- [SAIB ACE-98-09](https://openairdocs.org/saib/ACE-98-09): . Issued Nov 24, 1997

## NTSB investigations

None matched to N903KB.

## FAA accident and incident reports

None matched to N903KB.

## 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) (5)

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 (Schleicher KA 6)

- [STC SG03893NY](https://openairdocs.org/stc/SG03893NY): Installation and maintenance of ORATEX covering and coating material. Aircraft Design & Certification GmbH
- [STC SA4503NM](https://openairdocs.org/stc/SA4503NM): Remove original cloth covering and install Ceconite covering. Ceconite Division of Poly-Fiber Inc
- [STC SG03715NY](https://openairdocs.org/stc/SG03715NY): Iunstallation and maintenance of Oratex 6000 Covering and Coating System. Lanitz-Prena Folien Factory GmbH
- [STC SG04702NY](https://openairdocs.org/stc/SG04702NY): Installation and maintenance of Oratex UL600 Covering and Coating System. Lanitz-Prena Folien Factory GmbH
- [STC SG01164CH](https://openairdocs.org/stc/SG01164CH): Install Cooper superflite 102 fabric. Aviation Products Systems Inc

## Related

- Other Schleicher KA 6 aircraft: https://openairdocs.org/model/schleicher-ka-6/aircraft.md
- The NONE engine: https://openairdocs.org/engine/none.md

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