# N9811N: Elizabeth Adams Walz A60S

- Status: Valid registration
- Airframe: [Elizabeth Adams Walz A60S](https://openairdocs.org/model/elizabeth-adams-walz-a60s) (registry code 0050460, 6 seats)
- Engine: [NONE](https://openairdocs.org/engine/none) (registry code 00000)
- Data sheets: [TCDS A15SO](https://openairdocs.org/tcds/A15SO) (Adams Aerostats LLC) (OpenAirDocs)
- Serial number: 190
- Type: Balloon
- Engine type: None
- Airworthiness: Standard, balloon
- Airworthiness date: October 22, 1987
- Certificate issued: October 15, 2022
- Expires: October 31, 2029
- Mode S code: ADB163
- Registered owner: [Re/Max Marketing Fund LLC](https://openairdocs.org/faa-owner/RE%2FMAX%20MARKETING%20FUND%20LLC)
- Location: [Denver, CO](https://openairdocs.org/faa-place/CO/Denver)
- Owner type: LLC
- Owner's area on the map: 39.6399° N, 104.9030° W: Placed by OpenAirDocs at the center of ZIP code 80237, within about a mile (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=9811N
- Page: https://openairdocs.org/aircraft/N9811N

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 (Elizabeth Adams Walz A60S)

- [AD 2013-03-10](https://openairdocs.org/ad/2013-03-10): Hardware · Aeronaut Instruction Research Skysailor 105, Skysailor 90, 110C and 439 more. Effective Mar 19, 2013
- [AD 75-12-08](https://openairdocs.org/ad/75-12-08): Throttle or Trigger Valves · McGrath, Michael D. A-60S, A-B, A50S and 41 more. Effective Apr 30, 1976

### Matched by engine (NONE)

None in force.

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

- [SAIB CE-11-44](https://openairdocs.org/saib/CE-11-44): Fuel: Cylinder Strap Installation. Issued Jul 13, 2011

## 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 FTW90LA110](https://openairdocs.org/ntsb/FTW90LA110), May 27, 1990: Adams A60S (N9811N), Austin, TX, substantial damage. Probable cause: IMPROPER PLANNING/DECISION BY THE PILOT. THE UNFAVORABLE WIND AND OBSTACLES WERE RELATED FACTORS.
- [NTSB FTW88LA167](https://openairdocs.org/ntsb/FTW88LA167), Jan 18, 1988: Adams A-60 (N9811N), Austin, TX, no damage. Probable cause: THE BALLOON WAS DEFLATED BY THE PASSENGER WHEN HE PULLED THE CROWN LINE. CONTRIBUTING TO THIS WAS THE PILOT'S POOR JUDGEMENT IN RELINQUISHING THE LINE TO THE PASSENGER.

## 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 19880418071329A](https://openairdocs.org/incident/19880418071329A), Apr 18, 1988: N9811N, Sustin, TX, Minor damage. During attempts for high wind landing pilot gave crown line to passenger who pulled it at 6O feet dropping balloon.

## 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) (3)

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 (Elizabeth Adams Walz A60S)

- [STC SB09657RC](https://openairdocs.org/stc/SB09657RC): Installation of Aircraft Position Lights. Albuquerque Balloon Center, Inc
- [STC SB02889AT](https://openairdocs.org/stc/SB02889AT): Installation of replacement vapor and liquid fuel hoses including associated fittings. Aeronautical Enterprises Inc
- [STC SL2165SO](https://openairdocs.org/stc/SL2165SO): Installation of Cameron basket and burner system. Adams Balloon Loft

## Related

- Other Elizabeth Adams Walz A60S aircraft: https://openairdocs.org/model/elizabeth-adams-walz-a60s/aircraft.md
- The NONE engine: https://openairdocs.org/engine/none.md

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