Twin turboprop

N63978

1981 Beechcraft C-99

Registered 1 NTSB/FAA record
Built
1981
Serial
U-171
Class
Twin turboprop
Engines
2 × Pratt & Whitney Canada PT6A-60A
Status
Current as of October 2026
Registered owner
Uas Transervices Inc (Corporation)
Based
Boca Raton, FL
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Registration record

N63978 on the FAA register

Type
1981 Beechcraft C-99
Serial
U-171
Engines
2 × Pratt & Whitney Canada PT6A-60A
Registered owner
Uas Transervices Inc
Boca Raton, FL
Certificate issued
2007-05-01
Airworthiness date
1981-10-30
Registration expires
2030-04-30
Airworthiness class
Standard · normal
Mode S (hex)
A86299
Mode S (octal)
52061231
Seats (type)
17
Weight class
up to 12,499 lb
Status
Current as of October 2026
Registry history

Timeline

  • 2030-04-30
    Registration expires (renewal due).
  • 2007-05-01
    Certificate of registration issued as N63978 to the current registrant.
  • 1993-02-25
    Accident at Seattle, WA; damage: substantial.
  • 1981-10-30
    Airworthiness date on the current FAA record (standard category (normal)).
  • 1955-10-24
    N63978 previously assigned to a Cessna T-50 (s/n 1511); cancelled.
Overview

About N63978

N63978 is a 1981 Beechcraft C-99, serial number U-171. The FAA register lists Uas Transervices Inc as the registrant in Boca Raton, Florida. The current certificate of registration was issued on May 1, 2007 and expires on April 30, 2030.

The FAA aircraft reference file describes the type as a twin turboprop, two Pratt & Whitney Canada PT6A-60A engines and 17 seats. Its airworthiness certificate is standard category (normal), dated October 30, 1981.

N63978 has 1 accident/incident record on file (most serious damage: substantial); details are below.

Safety record

Accident & incident history

1993-02-25 Accident · Seattle, WA Damage: Substantial NTSB · SEA93LA067
Reported aircraft: Beechcraft C-99
Probable cause: THE IMPROPER STARTING PROCEDURE BY THE PILOT OF THE AERONCA. A FACTOR CONTRIBUTING TO THE ACCIDENT WAS INADEQUATE COMMUNICATIONS BY THE PILOT OF THE AERONCA.

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.