N166DH is a 1967 Dehavilland DHC-6 TWIN OTTER (fixed wing multi engine) with serial number 66, registered in Wilmington, DE. Its FAA registration is valid and runs until Oct 31, 2029; the renewal window opens on Apr 30, 2029. It is powered by a P&W PT6A SER rated at 750 hp. Its airworthiness certificate is in the standard class (normal), issued Nov 14, 1986. It is one of 26 DHC-6 TWIN OTTER aircraft in the FAA registry, 2 of them registered in Delaware. About 64% of them were built after it. The NTSB accident database lists 2 records for this airframe since 2008, the latest on Jun 8, 2025.
Registration
- FAA status
- Valid registration
- Expires
- Oct 31, 2029
- Registrant type
- LLC
- Registered owner
- RANDIGO LLC
- Location
- Wilmington, DE
- Local FAA office (FSDO)
- Philadelphia FSDO (PHL FSDO) · (610) 595-2440
- Certificate issued
- Oct 20, 2022
- Last FAA action
- Sep 9, 2023
- Mode S code (hex)
- A1084B
- Mode S code (octal)
- 50204113
- Official record
- registry.faa.gov
Aircraft
- Manufacturer
- DEHAVILLAND
- Model
- DHC-6 TWIN OTTER
- Year manufactured
- 1967
- Serial number
- 66
- Aircraft type
- Fixed wing multi engine
- Engine type
- Turbo-prop
- Engine
- P&W PT6A SER (750 hp)
- Engines / seats
- 2 / 16
- Weight class
- Up to 12,499 lb
- Airworthiness
- Standard since Nov 14, 1986
- Approved operations
- Normal
Public airports near Wilmington
| Airport | ID | Distance | Tower | Fuel |
|---|---|---|---|---|
| New Castle Wilmington, DE | KILG | 6 mi | Towered | 100LL, A |
| New Garden Toughkenamon, PA | N57 | 14 mi | Non-towered | 100LL |
| Philadelphia Essington, PA | 9N2 | 15 mi | Non-towered | - |
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. |
|---|---|---|---|---|---|
| Jun 8, 2025 | Tullahoma, TN | Dehavilland DHC-6 TWIN OTTER this airframe | Substantial | Serious | ERA25LA222 |
| Oct 11, 2019 | Cedartown, GA | De Havilland DHC 6 TWIN OTTER this airframe | Substantial | None | GAA20CA021 |
From the NTSB aviation accident database (events since 2008, data through Oct 28, 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.