Single-engine piston

N777LF

1966 Helio H-250

Registered 1 NTSB/FAA record
Built
1966
Serial
2535
Class
Single-engine piston
Engines
Lycoming O-540 series
Status
Current as of October 2026
Registered owner
Aeolian Corp (Corporation)
Based
Wilmington, DE
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Registration record

N777LF on the FAA register

Type
1966 Helio H-250
Serial
2535
Engines
Lycoming O-540 series
Registered owner
Aeolian Corp
Wilmington, DE
Certificate issued
2004-02-19
Airworthiness date
1998-08-05
Registration expires
2029-10-31
Airworthiness class
Standard · normal
Mode S (hex)
AA8408
Mode S (octal)
52502010
Seats (type)
6
Weight class
up to 12,499 lb
Status
Current as of October 2026
Registry history

Timeline

  • 2029-10-31
    Registration expires (renewal due).
  • 2006-05-01
    Accident at Woodville, TX; damage: substantial.
  • 2004-02-19
    Certificate of registration issued as N777LF.
  • 1998-08-05
    Airworthiness date on the current FAA record (standard category (normal)).
  • 1966
    Manufactured (1966).
Overview

About N777LF

N777LF is a 1966 Helio H-250, serial number 2535. The FAA register lists Aeolian Corp as the registrant in Wilmington, Delaware. The current certificate of registration was issued on February 19, 2004 and expires on October 31, 2029.

The FAA aircraft reference file describes the type as a single-engine piston, one Lycoming O-540 series engine and 6 seats. Its airworthiness certificate is standard category (normal), dated August 5, 1998.

N777LF 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

2006-05-01 Accident · Woodville, TX Damage: Substantial Minor injury NTSB · DFW06CA116
Reported aircraft: Heliotech H-250
Probable cause: The pilot's failure to maintain clearance with obstructions at the departure end of the airstrip during an aborted landing. A contributing factor was dusk light conditions.
1997-01-24 Accident · Wilkes-Barre, PA Damage: Substantial NTSB · NYC97LA047
Reported aircraft: Cessna 650 — a different aircraft that carried the N777LF registration before this airframe.
Probable cause: The collapse of the left main landing gear as a result of the malfunction of the downlock actuator for undetermined reasons.

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 Delaware· 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.