# N98TP: 1951 Grumman HU-16B

- Status: Valid registration
- Airframe: [Grumman HU-16B](https://openairdocs.org/model/grumman-hu-16b) (registry code 3950408, 8 seats)
- Engine: [Wright R-1820 series](https://openairdocs.org/engine/wright-r-1820-series) (registry code 67020)
- Data sheets: [TCDS A33SO](https://openairdocs.org/tcds/A33SO) (Amphibian Aerospace Industries Defense, Inc., a Delaware corporation (Delaware file no. 10288788), c/o Dunlap Bennett & Ludwig, PLLC) (OpenAirDocs)
- Serial number: 51-7186
- Year built: 1951
- Type: Fixed wing multi engine
- Engine type: Reciprocating
- Airworthiness: Experimental, exhibition
- Airworthiness date: October 29, 2007
- Certificate issued: September 27, 2021
- Expires: September 30, 2028
- Mode S code: ADAA82
- Registered owner: [Trousdale Aviation LLC](https://openairdocs.org/faa-owner/TROUSDALE%20AVIATION%20LLC)
- Location: [Wilmington, DE](https://openairdocs.org/faa-place/DE/Wilmington)
- Owner type: LLC
- Owner's area on the map: 39.7236° N, 75.5412° W: Placed by OpenAirDocs at the center of ZIP code 19801, 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=98TP
- Page: https://openairdocs.org/aircraft/N98TP

From the FAA registry file of October 22, 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. The registry lists only the engine series, so ADs for every Wright R-1820 model are included.

## ADs that may apply (OpenAirDocs): 0 in force

### Matched by airframe (Grumman HU-16B)

None in force.

### Matched by engine (Wright R-1820 series)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N98TP.

## FAA accident and incident reports

None matched to N98TP.

## 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 (Grumman HU-16B)

- [STC SA02511SE](https://openairdocs.org/stc/SA02511SE): Installation of replacement fuel quantity indicator sending unit(s). CiES Inc
- [STC SA39CH](https://openairdocs.org/stc/SA39CH): Installation of an Amphibian Landing Gear Position Advisory System/Laser Gear Advisory System. Wipaire Inc
- [STC ST334CH](https://openairdocs.org/stc/ST334CH): Installation of Superflite 102 fabric. Aviation Products Systems Inc

## Related

- Other Grumman HU-16B aircraft: https://openairdocs.org/model/grumman-hu-16b/aircraft.md
- The Wright R-1820 series engine: https://openairdocs.org/engine/wright-r-1820-series.md

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