Single-engine piston

N4123D

1957 Helio Courier H391B

Registered 2 NTSB/FAA records
Built
1957
Serial
042
Class
Single-engine piston
Engines
Lycoming GO-435C&D series
Status
Current as of October 2026
Registered owner
Individual · sign in to see
Based
Graham, WA
What's N4123D worth? Track flights
Registration record

N4123D on the FAA register

Type
1957 Helio Courier H391B (FAA: Helio H-391B)
Serial
042
Engines
Lycoming GO-435C&D series
Registered owner
Individual — the name of an individual registrant is shown to signed-in users. Sign in
Graham, WA
Certificate issued
1978-03-03
Airworthiness date
1957-03-26
Registration expires
2030-02-28
Airworthiness class
Standard
Mode S (hex)
A4DE53
Mode S (octal)
51157123
Seats (type)
4
Weight class
up to 12,499 lb
Status
Current as of October 2026
Registry history

Timeline

  • 2030-02-28
    Registration expires (renewal due).
  • 1978-03-03
    Certificate of registration issued as N4123D.
  • 1971-04-10
    Accident at Anchorage,Alas, 02; damage: substantial.
  • 1970-08-24
    Accident at Ninilchik,Alas, 02; damage: substantial.
  • 1957-03-26
    Airworthiness date on the current FAA record (standard category).
Overview

About N4123D

N4123D is a 1957 Helio Courier H391B (FAA model H-391B), serial number 042. It is registered to an individual in Graham, Washington. The current certificate of registration was issued on March 3, 1978 and expires on February 28, 2030.

The FAA aircraft reference file describes the type as a single-engine piston, one Lycoming GO-435C&D series engine and 4 seats. Its airworthiness certificate is standard category, dated March 26, 1957.

N4123D has 2 accident/incident records on file (most serious damage: substantial); details are below.

Safety record

Accident & incident history

1971-04-10 Accident · Anchorage,Alas, 02 Damage: Substantial NTSB · 3 1203
Reported aircraft: Helio H391B
1970-08-24 Accident · Ninilchik,Alas, 02 Damage: Substantial NTSB · 3 4497
Reported aircraft: Helio Acft H-391B
Probable cause: OF ATMT. HIT SOFT SPOT IN SAND.

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

Same model

More Helio Courier H391B aircraft

N4120D
1957 Helio Courier H391B
N4121D
1957 Helio Courier H391B
N10CJ
1958 Helio Courier H391B
N12620
1956 Helio Courier H391B
N289LM
1956 Helio Courier H391B
N4119D
1956 Helio Courier H391B
N4138D
1958 Helio Courier H391B
N4139D
1958 Helio Courier H391B
All 16 Helio Courier H391B registrations →
Same state

Other aircraft registered in Washington

N411YY
Insitu SCANEAGLE3
N4120R
Air Tractor AT-802A
N41230
1974 Piper Arrow II
N4124
1953 Mooney M18C Mite
N412JN
2021 Vans RV-12
N412MG
Alexander Schleicher Gmbh & Co Ash 31 MI
All 10,568 aircraft registered in Washington →
Similar aircraft

Other single-engine pistons on the register

  • N952081958 Taylorcraft BC-12D
  • N3214W1965 Piper Cherokee 6/300
  • N66AB1969 Beechcraft F33A Bonanza
  • N103TX2001 Cessna 182T Skylane
  • N432371952 Piper Warrior
  • N17CC1969 Beechcraft V35B Bonanza
More from Helio

Helio models on the register

Own N4123D?

Get a free valuation, digitize the logbooks, or list it on fyiAero.

Free valuation Logbook transcription

Browse: Aircraft registered in Washington· 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.