Single-engine piston

N4393Z

1968 Piper PA-18 Super Cub

Registered 2 NTSB/FAA records
Built
1968
Serial
18-8724
Class
Single-engine piston
Engines
Lycoming O-360 series
Status
Current as of October 2026
Registered owner
Williams Aircraft LLC (LLC)
Based
Anchorage, AK
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Registration record

N4393Z on the FAA register

Type
1968 Piper PA-18 Super Cub (FAA: Piper PA-18-150)
Serial
18-8724
Engines
Lycoming O-360 series
Registered owner
Williams Aircraft LLC
Anchorage, AK
Certificate issued
2023-09-07
Airworthiness date
2024-08-21
Registration expires
2030-09-30
Airworthiness class
Multiple
Mode S (hex)
A54766
Mode S (octal)
51243546
Seats (type)
2
Weight class
up to 12,499 lb
Range (type)
450 nm
Cruise (type)
97 kt
Status
Current as of October 2026
Registry history

Timeline

  • 2030-09-30
    Registration expires (renewal due).
  • 2024-08-21
    Airworthiness date on the current FAA record (multiple category).
  • 2023-09-07
    Certificate of registration issued as N4393Z.
  • 2017-11-03
    Accident at Murphy, ID; damage: substantial.
  • 1996-09-01
    Accident at Tyonek, AK; damage: substantial.
  • 1968
    Manufactured (1968).
Overview

About N4393Z

N4393Z is a 1968 Piper PA-18 Super Cub (FAA model PA-18-150), serial number 18-8724. The FAA register lists Williams Aircraft LLC as the registrant in Anchorage, Alaska. The current certificate of registration was issued on September 7, 2023 and expires on September 30, 2030.

The FAA aircraft reference file describes the type as a single-engine piston, one Lycoming O-360 series engine and 2 seats. Published figures for the type give a cruise speed of about 97 knots and a range of about 450 nm; actual performance depends on configuration, load and conditions. Its airworthiness certificate is multiple category, dated August 21, 2024.

N4393Z has 2 accident/incident records on file (most serious damage: substantial); details are below.

Cruise
97 kt
Range
450 nm
Power / thrust (each)
125
Takeoff over 50 ft
650 ft
Landing over 50 ft
725 ft
Fuel burn
8 gph

Published figures for the Piper PA-18 Super Cub type. They describe the model, not this airframe's equipment or condition.

Safety record

Accident & incident history

2017-11-03 Accident · Murphy, ID Damage: Substantial Fatal injury NTSB · WPR18FA026
Reported aircraft: Piper PA 18-150
Probable cause: Failure of the left aileron control cable that resulted in a loss of aircraft control during takeoff. Contributing to the accident was inadequate maintenance inspections to the aileron cable connections.
1996-09-01 Accident · Tyonek, AK Damage: Substantial NTSB · ANC96LA133
Reported aircraft: Piper PA-18
Probable cause: the pilot's premature liftoff and subsequent inadvertent stall.

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.