Twin turboprop

N166DH

1967 Dehavilland DHC-6 TWIN Otter

Registered 2 NTSB/FAA records
Built
1967
Serial
66
Class
Twin turboprop
Engines
2 × Pratt & Whitney PT6A series
Status
Current as of October 2026
Registered owner
Randigo LLC (LLC)
Based
Wilmington, DE
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Registration record

N166DH on the FAA register

Type
1967 Dehavilland DHC-6 TWIN Otter
Serial
66
Engines
2 × Pratt & Whitney PT6A series
Registered owner
Randigo LLC
Wilmington, DE
Certificate issued
2022-10-20
Airworthiness date
1986-11-14
Registration expires
2029-10-31
Airworthiness class
Standard · normal
Mode S (hex)
A1084B
Mode S (octal)
50204113
Seats (type)
16
Weight class
up to 12,499 lb
Status
Current as of October 2026
Registry history

Timeline

  • 2029-10-31
    Registration expires (renewal due).
  • 2025-06-08
    Accident at Tullahoma, TN; damage: substantial.
  • 2022-10-20
    Certificate of registration issued as N166DH.
  • 2019-10-11
    Accident at Cedartown, GA; damage: substantial.
  • 1986-11-14
    Airworthiness date on the current FAA record (standard category (normal)).
  • 1967
    Manufactured (1967).
Overview

About N166DH

N166DH is a 1967 Dehavilland DHC-6 TWIN Otter, serial number 66. The FAA register lists Randigo LLC as the registrant in Wilmington, Delaware. The current certificate of registration was issued on October 20, 2022 and expires on October 31, 2029.

The FAA aircraft reference file describes the type as a twin turboprop, two Pratt & Whitney PT6A series engines and 16 seats. Its airworthiness certificate is standard category (normal), dated November 14, 1986.

N166DH has 2 accident/incident records on file (most serious damage: substantial); details are below.

Safety record

Accident & incident history

2025-06-08 Accident · Tullahoma, TN Damage: Substantial Serious injury NTSB · ERA25LA222
Reported aircraft: Dehavilland DHC-6 TWIN Otter
Preliminary report: On June 8, 2025, about 1220 central daylight time, a DeHavilland DHC-6 Twin Otter, N166DH, was involved in an accident near Tullahoma, Tennessee. The commercial pilot and five passengers were seriously injured, and 15 passengers were not injured. The flight was being conducted as a 14 Code of Federal Regulations Part 91 skydiving flight. The pilot was attempting to take off from runway 24 at the Tullahoma Regional Airport (THA), Tullahoma, TN. The accident flight was his fourth flight in the airplane that day. The pilot stated the takeoff was normal and he raised the flaps once the airplane was clear of obstacles. When the airplane was about 500 ft above the ground, the pilot noticed…
NTSB report ↗
2019-10-11 Accident · Cedartown, GA Damage: Substantial NTSB · GAA20CA021B
Reported aircraft: De Havilland DHC 6 TWIN Otter
Probable cause: ***This report was modified on June 4, 2020. Please see the docket for this accident to view the original report.*** The departing pilot's failure to see and avoid the arriving airplane as it was turning off the runway from which the departing pilot was taking off.

Sources: NTSB aviation accident database and CAROL case system, FAA preliminary accident & incident notices. Search accident records

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Data: FAA Aircraft Registry (October 2026), including deregistered aircraft; NTSB and FAA accident data; fyiAero listing history. Individual owners' names are shown to signed-in users and street addresses are never shown. Type figures are published specifications, not this aircraft's.