Twin piston

N685MD

1969 Piper Aztec E

Registered No accidents on file
Built
1969
Serial
27-4295
Class
Twin piston
Engines
2 × Lycoming IO-540 series
Status
Current as of October 2026
Registered owner
Abacus Automation Inc (Corporation)
Based
Bennington, VT
Registration record

N685MD on the FAA register

Type
1969 Piper Aztec E (FAA: Piper PA-23-250)
Serial
27-4295
Engines
2 × Lycoming IO-540 series
Registered owner
Abacus Automation Inc
Bennington, VT
Certificate issued
2013-06-18
Airworthiness date
1984-11-06
Registration expires
2029-06-30
Airworthiness class
Standard · normal
Mode S (hex)
A916E1
Mode S (octal)
52213341
Seats (type)
6
Weight class
up to 12,499 lb
Range (type)
450 nm
Cruise (type)
103 kt
Status
Current as of October 2026
Registry history

Timeline

  • 2029-06-30
    Registration expires (renewal due).
  • 2013-06-18
    Certificate of registration issued as N685MD.
  • 1984-11-06
    Airworthiness date on the current FAA record (standard category (normal)).
  • 1969
    Manufactured (1969).
Overview

About N685MD

N685MD is a 1969 Piper Aztec E (FAA model PA-23-250), serial number 27-4295. The FAA register lists Abacus Automation Inc as the registrant in Bennington, Vermont. The current certificate of registration was issued on June 18, 2013 and expires on June 30, 2029.

The FAA aircraft reference file describes the type as a twin piston, two Lycoming IO-540 series engines and 6 seats. Published figures for the type give a cruise speed of about 103 knots and a range of about 450 nm; actual performance depends on configuration, load and conditions. Its airworthiness certificate is standard category (normal), dated November 6, 1984.

No NTSB accident or incident reports and no FAA preliminary notices are on file for N685MD.

Cruise
103 kt
Range
450 nm
Landing over 50 ft
780 ft
Fuel burn
8 gph

Published figures for the Piper Aztec E type. They describe the model, not this airframe's equipment or condition.

Safety record

Accident & incident history

✓ No NTSB accident or incident reports and no FAA preliminary notices on file for N685MD.

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.