Single-engine piston

N90393

1995 Weatherly Aviation Co 620B

Registered 1 NTSB/FAA record
Built
1995
Serial
1594
Class
Single-engine piston
Engines
Pratt & Whitney R-985 series
Status
Current as of October 2026
Registered owner
Skyline Aviation LLC (LLC)
Based
Lewistown, MT
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Registration record

N90393 on the FAA register

Type
1995 Weatherly Aviation Co 620B
Serial
1594
Engines
Pratt & Whitney R-985 series
Registered owner
Skyline Aviation LLC
Lewistown, MT
Certificate issued
2014-04-07
Airworthiness date
1997-06-20
Registration expires
2030-04-30
Airworthiness class
Restricted
Mode S (hex)
AC7E00
Mode S (octal)
53077000
Seats (type)
2
Weight class
up to 12,499 lb
Status
Current as of October 2026
Registry history

Timeline

  • 2030-04-30
    Registration expires (renewal due).
  • 2025-05-30
    Accident at Lewiston, MT; damage: substantial.
  • 2014-04-07
    Certificate of registration issued as N90393 to the current registrant.
  • 1997-06-20
    Airworthiness date on the current FAA record (restricted category).
  • 1995
    Manufactured (1995).
  • 1991-04-25
    N90393 previously assigned to a Smith Aerostar 600 (s/n 600224095); cancelled.
  • 1962-01-17
    N90393 previously assigned to a Globe SWIFT (s/n 407); cancelled.
Overview

About N90393

N90393 is a 1995 Weatherly Aviation Co 620B, serial number 1594. The FAA register lists Skyline Aviation LLC as the registrant in Lewistown, Montana. The current certificate of registration was issued on April 7, 2014 and expires on April 30, 2030.

The FAA aircraft reference file describes the type as a single-engine piston, one Pratt & Whitney R-985 series engine and 2 seats. Its airworthiness certificate is restricted category, dated June 20, 1997.

N90393 has 1 accident/incident record on file (most serious damage: substantial); details are below. 1 earlier record involves a different aircraft that carried the same N-number.

Safety record

Accident & incident history

2025-05-30 Accident · Lewiston, MT Damage: Substantial NTSB · WPR25LA165
Reported aircraft: Weatherly Aviation Co 620B
Probable cause: The pilot s failure to maintain clearance from terrain while maneuvering at a low altitude.
NTSB report ↗
1988-12-31 Accident · Somerville, NJ Damage: Destroyed Serious injury NTSB · NYC89LA058
Reported aircraft: Piper PA-60 — a different aircraft that carried the N90393 registration before this airframe.
Probable cause: IMPROPER INFLIGHT DECISIONS WHILE APPROACHING THE AIRPORT ON FINAL APPROACH WITH DEFECTIVE MAGNETOS. THE RIGHT FUEL SELECTOR WAS PLACED IN THE CLOSED POSITION, THE PILOT ATTEMPTED A GO AROUND, RAISED THE LANDING GEAR AND FLAPS, FAILED TO MAINTAIN VMC, AND CRASHED INTO WOODED TERRAIN.

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

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Browse: Aircraft registered in Montana· Registry by state· FAA registry stats

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.