# N14985: Ryan Aeronautical ST-A

- Status: Valid registration
- Airframe: [Ryan Aeronautical ST-A](https://openairdocs.org/model/ryan-aeronautical-st-a) (registry code 7830402, 2 seats)
- Engine: [Menasco SUP PIRT D4B](https://openairdocs.org/engine/menasco-sup-pirt-d4b) (registry code 43506)
- Data sheets: [TCDS ATC 571](https://openairdocs.org/tcds/ATC%20571) (Ryan Aeronautical Company) (OpenAirDocs)
- Serial number: 117
- Type: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Standard, normal
- Airworthiness date: November 11, 1955
- Certificate issued: June 29, 2021
- Expires: June 30, 2028
- Mode S code: A0C7AD
- Registered owner: [Sweet Tea Holdings LLC](https://openairdocs.org/faa-owner/SWEET%20TEA%20HOLDINGS%20LLC)
- Location: [Kalispell, MT](https://openairdocs.org/faa-place/MT/Kalispell)
- Owner type: LLC
- Owner's area on the map: 48.2306° N, 114.4033° W: Placed by OpenAirDocs at the center of ZIP code 59901, within about 12 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=14985
- Page: https://openairdocs.org/aircraft/N14985

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): 0 in force

### Matched by airframe (Ryan Aeronautical ST-A)

None in force.

### Matched by engine (Menasco SUP PIRT D4B)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations (2)

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 LAX80DUJ11](https://openairdocs.org/ntsb/LAX80DUJ11), Nov 6, 1979: Ryan ST-A (N14985), Phoenix, AZ, substantial damage
- [NTSB NYC67F0141](https://openairdocs.org/ntsb/NYC67F0141), Aug 1, 1966: Ryan ST-A (N14985), Schenectady, NY, 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 19791106040199A](https://openairdocs.org/incident/19791106040199A), Nov 6, 1979: Ryan STA (N14985), Phoenix, AZ, Substantial damage. Left brake dragged on landing roll. Airplane groundlooped, flipped over. Pilot unskilled in type.

## 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) (8)

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 (Ryan Aeronautical ST-A)

- [STC SA04652CH](https://openairdocs.org/stc/SA04652CH): To allow use of 100R grade aviation fuel meeting Swift Fuel, LLC specification. Swift Fuels LLC
- [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
- [STC SA00478CH](https://openairdocs.org/stc/SA00478CH): Installation of Cooper Superflite 102 Fabric. Aviation Products Systems Inc
- [STC SA00680SE](https://openairdocs.org/stc/SA00680SE): Installation of Electronics International model UBG-16 or UBG-16T bar graph engine analyzer. Electronics International
- [STC SA8075SW](https://openairdocs.org/stc/SA8075SW): Installation of fiberglass covering. (M-62 SERIES PT-19) (G-73 SCHWEIZER). Razorback Fabrics Inc
- [STC SA1364GL](https://openairdocs.org/stc/SA1364GL): Surrendered and incorporated into STC SA00478CH. Cooper Aviation Supply Company, Inc
- [STC SA1626NM PAGE 2](https://openairdocs.org/stc/SA1626NM%20PAGE%202): Installation of Electronics Int'l Digital EGT/CHT Instruments and accessories. (201 Series). Electronics International
- [STC SA4302NM](https://openairdocs.org/stc/SA4302NM): Installation of Electronics Int'l digital automatic engine analyzer. Electronics International

## Related

- Other Ryan Aeronautical ST-A aircraft: https://openairdocs.org/model/ryan-aeronautical-st-a/aircraft.md
- The Menasco SUP PIRT D4B engine: https://openairdocs.org/engine/menasco-sup-pirt-d4b.md

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