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Aircraft record

N819921989 Messerschmitt-Boelkow-Blohm BO-105S

DeregisteredUnclaimedSource: FAA, updated Oct 19, 2026

This N-number isn't registered right now. Below is its last known registration, canceled Oct 21, 2014.

Safety record in brief:No NTSB accidents or incidents since 19823 ADs may apply43 service difficulty reports

Registration
Deregistered
Last based in
Xxx, OK
owner city / state
Owners
1
on record
NTSB events
None
since 1982
ADs may apply
3
confirm with A&P
Service reports
43
since 1995

Registration

FAA Aircraft Registry · Oct 19, 2026
Last registered owner
Individual owner
City, state
Xxx, OK
Canceled
Oct 21, 2014
Airworthiness
Standard · Normal
Airworthiness date
Apr 25, 1990

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
Year
1989
Serial number
S-827
Aircraft type
Rotorcraft
Category
Land
Certification
Type Certificated
Seats
5
Engines
2
Max takeoff weight
Up to 12,499 lb
Type certificate data sheet
H3EU
Mode S code
AB2E79

Engine

Make and model
Allison 250-C20 Ser
Type
Turbo-shaft
Power
420 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. 1950 – 1951South Bayairport Codifferent airframe: 1946 Aeronca 7ac S/N 7ac-617
  2. until 1980Globe Aero Limited INCLakeland, FL · different airframe: Piper Pa-34-200t S/N 34-8070209
  3. until 2014Individual ownerXxx, OK

Individual owners are shown by city and state only.

Safety record

NTSB · Oct 15, 2026 · FAA ADs · Oct 19, 2026 · SDRs · Oct 16, 2026

NTSB events (0)

No NTSB accidents or incidents found for this airframe since 1982.

Accident history for this model

ADs published since 1998 that may apply (3)

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.

ADSubjectEffectiveApplies to
2006-16-04Rolls-Royce Corporation (Formerly Allison Engine Company, Allison Gas Turbine Division…Sep 7, 2006Engine (250-C20 SER)
2006-13-06Rolls-Royce Corporation (Formerly Allison Engine Company, Allison Gas Turbine Division…Jul 26, 2006Engine (250-C20 SER)Only with: Engines with gas producer rotor assembly tie bolt P/Ns A23008020, E23008020 (EXTEX), 23008020, 6843388, 6876991 (RRC), A23008020 (SAP), or 23008020P (Pacific Sky Supply) installed.
2005-10-13Rolls-Royce Corporation (Formerly Allison Engine Company) 250-B17B, -B17C, -B17D, -B17E…Jun 22, 2005Engine (250-C20 SER)Only with: Engines that do not have turbine energy absorbing ring RRC P/N 23035175, or an equivalent FAA-approved serviceable ring, installed.

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

Service Difficulty Reports (43)

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.

  • Engine air · bleed valve · malfunctionedJul 2, 2003

    BLEED VALVE PRODUCING ENGINE HIGH TOT. SHOP REPAIR.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Engine indicating · indicator · reads highJul 2, 2003

    EXHAUST TEMP INDICATOR READS HIGH. SHOP REPAIR.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Fuel · valve · inoperativeJun 24, 2003

    FUEL VALVE INOPERATIVE. REPLACED WITH SERVICEABLE PART.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
Show all 10 reports
  • Main rotor drive · head · weakJun 10, 2003

    BRAKE HEAD ASSY WEAK. REPLACED WITH SERVICEABLE ROTOR BRAKE.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Hydraulic power · powerpack · failedMay 22, 2003

    FAILED 12 MONTH INSPECTION. PRESSURE RELIEF VALVE CHECK OF NR 2 VALVE BODY MANIFOLD (STUCK IN BYPASS AND COULD NOT GET IT TO UNSTICK) IN SHOP REPAIR.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Tail rotor · bearing · wornMay 21, 2003

    CONTROL ROD HAS WORN BEARINGS. REPLACED 2 EACH 116488P BEARINGS DUE TO WORN; 2 EACH 11-3943P BEARINGS DUE TO WORN. REPAIRED.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Rotor flight controls · bearing · wornFeb 27, 2003

    CONTROL ROD ASSY HAS WORN BEARINGS. REPAIRED.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Rotor flight controls · bearing · wornFeb 12, 2003

    TAIL ROTOR BELLCRANK HAS WORN BEARINGS. REPLACED BEARING 2828P AND EN2015BN06E DUE TO WORN. REPAIRED.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Tail rotor · pitch link · wornJan 7, 2003

    TAIL ROTOR PITCH CONTROL LINKS WORN. REPLACED LINKS.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Power plant · ring assembly · crackedJan 7, 2003

    BELLMOUTH RINGS CRACKED. REPLACED ENGINE BELLMOUTH RINGS.

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

Showing the 10 most recent of 43 reports.

Sources

  • FAA Aircraft RegistryRegistration, owner city and state, airframe, engineupdated Oct 19, 2026
  • NTSB accident and incident databaseAccidents and incidents since 1982updated Oct 15, 2026
  • FAA Airworthiness Directives (Federal Register)ADs published since 1998updated Oct 19, 2026
  • FAA Service Difficulty ReportsReports since 1995updated Oct 16, 2026

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