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Aircraft record

N491HL1984 Messerschmitt-Boelkow-Blohm BO-105S CDN-BS-4

DeregisteredUnclaimedSource: FAA, updated Oct 20, 2026

This N-number isn't registered right now. Below is its last known registration, canceled Mar 12, 2003.

Safety record in brief:1 NTSB accident (substantial damage, Jul 2002)No ADs since 1998 matched2 service difficulty reports

Registration
Deregistered
Last based in
Fairbanks, AK
owner city / state
Owners
1
since 1995
NTSB events
1
substantial, 2002
ADs may apply
0
confirm with A&P
Service reports
2
since 1995

Registration

FAA Aircraft Registry · Oct 20, 2026
Last registered owner
Air Logistics Of Alaska INC
Owner type
Corporation
City, state
Fairbanks, AK
Certificate issued
Mar 15, 1995
Canceled
Mar 12, 2003
Airworthiness
Standard · Transport
Airworthiness date
Oct 2, 1986

We never show street addresses, even though they appear in the public FAA file. Individual owners are shown by city and state only.

Airframe & engine

FAA Registry + type data

Airframe

Manufacturer
Messerschmitt-Boelkow-Blohm
Model
BO-105S CDN-BS-4
Year
1984
Serial number
S-664
Aircraft type
Rotorcraft
Category
Land
Certification
Type Certificated
Seats
5
Engines
2
Max takeoff weight
Up to 12,499 lb
Mode S code
A61489

Engine

Make and model
Allison 250 Series
Type
Turbo-shaft
Power
300 hp

Total time and engine hours aren't public. They appear here once the owner adds logbooks.

Ownership history

Ownership history from FAA records
  1. 1995 – 2003Air Logistics Of Alaska INCFairbanks, AK

Individual owners are shown by city and state only.

Safety record

NTSB · Oct 15, 2026 · FAA ADs · Oct 20, 2026 · SDRs · Oct 16, 2026

NTSB events (1)

Accident · substantial damage

Jul 23, 2002 · Deadhorse, AK

The pilot's failure to correct a settling-with-power condition during a helicopter landing flare/touchdown, resulting in a hard landing and roll over.

Damage
Substantial
Injuries
None
Report
ANC02LA081

From NTSB records; matched by N-number.Read NTSB report (search CAROL for ANC02LA081)

ADs published since 1998 that may apply (0)

These match the airframe or engine model. Whether each one applies, and whether it's been complied with, depends on serial numbers, equipment and logbook entries. Applicability must be confirmed by a mechanic against the aircraft's records.

No ADs published since 1998 matched this airframe or engine model.

AI-extracted — verify against original. Matched from each AD's applicability section; ADs replaced by a later AD are left out.

Service Difficulty Reports (2)

Reports of failures and defects that operators and repair stations sent to the FAA since 1995. A report describes one finding; it is not an accident.

  • Electrical power · wire · shortedNov 14, 1997

    WHILE AIRCRAFT WAS RUNNING, THE ODOR OF BURNED WIRE INSULATION WAS NOTICED AND NR 1 GENERATOR LIGHT ILLUMINATED AND THEN EXTINGUISHED. AIRCRAFT WAS SHUT DOWN. THE BATTERY WAS DISCONNECTED. UPON INSPECTION, FOUND THE CABLE FROM THE BATTERY RELAY TO THE RCCR HAD SHORTED TO GROUND.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Main rotor drive · housing · flange damageSep 15, 1995

    DURING DISASSEMBLY, THE RIGHT OIL PASSAGE O-RING FLANGE WAS FOUND DAMAGED. THE DAMAGE WAS OBVIOUSLY NOTED DURING LAST OVERHAUL DUE TO THE INSTALLATION OF 2 O-RINGS TO MAKE IT SEAL.

    From FAA Service Difficulty Reports; matched by N-number and serial number.

Sources

  • FAA Aircraft RegistryRegistration, owner city and state, airframe, engineupdated Oct 20, 2026
  • NTSB accident and incident databaseAccidents and incidents since 1982updated Oct 15, 2026
  • FAA Airworthiness Directives (Federal Register)ADs published since 1998updated Oct 20, 2026
  • FAA Service Difficulty ReportsReports since 1995updated Oct 16, 2026

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