N173MS is a 2000 Bell 206-L4 (rotorcraft) with serial number 52256, registered in Marathon, FL. Its FAA registration is valid and runs until Oct 31, 2028; the renewal window opens on Apr 30, 2028. It is powered by an Allison 250-C30 SER rated at 650 hp. Its airworthiness certificate is in the standard class (normal), issued Nov 24, 2000. It is one of 121 206-L4 aircraft in the FAA registry, 9 of them registered in Florida. About 27% of them were built after it. The NTSB accident database lists one record for this airframe since 2008, the latest on Apr 12, 2019.
Registration
- FAA status
- Valid registration
- Expires
- Oct 31, 2028
- Registrant type
- Government
- Registered owner
- FLORIDA KEYS MOSQUITO CONTROL DISTRICT
- Location
- Marathon, FL
- Local FAA office (FSDO)
- South Florida FSDO (MIA FSDO) · (954) 641-6000
- Certificate issued
- Nov 8, 2003
- Last FAA action
- Jun 16, 2023
- Mode S code (hex)
- A12576
- Mode S code (octal)
- 50222566
- Official record
- registry.faa.gov
Aircraft
- Manufacturer
- BELL
- Model
- 206-L4
- Type certificate (TCDS)
- H2SW (Bell Textron Canada Limited)
- Year manufactured
- 2000
- Serial number
- 52256
- Aircraft type
- Rotorcraft
- Engine type
- Turbo-shaft
- Engine
- ALLISON 250-C30 SER (650 hp)
- Engines / seats
- 1 / 7
- Weight class
- Up to 12,499 lb
- Airworthiness
- Standard since Nov 24, 2000
- Approved operations
- Normal
Public airports near Marathon
| Airport | ID | Distance | Tower | Fuel |
|---|---|---|---|---|
| The Florida Keys Marathon International Marathon, FL | KMTH | 2 mi | Non-towered | 100LL, A1+ |
Straight-line distance from the registration city, from the FAA airport directory (NASR). The registry does not say where an aircraft is based.
NTSB accident and incident records
| Date | Place | Aircraft (as NTSB recorded it) | Damage | Highest injury | NTSB no. |
|---|---|---|---|---|---|
| Apr 12, 2019 | Big Pine, FL | Bell 206 this airframe | Substantial | None | GAA19CA209 |
From the NTSB aviation accident database (events since 2008, data through Sep 29, 2026), matched by N-number. An N-number can move between aircraft, so each row is checked against the serial number on the current registration.