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Aircraft record

N911EB1989 Messerschmitt-Boelkow-Blohm BO-105S

DeregisteredUnclaimedSource: FAA, updated Oct 17, 2026

This N-number isn't registered right now. Below is its last known registration, canceled Apr 11, 2018.

Safety record in brief:No NTSB accidents or incidents since 19823 ADs may apply36 service difficulty reports

Registration
Deregistered
Last based in
Lafayette, LA
owner city / state
Owners
1
since 2003
NTSB events
None
since 1982
ADs may apply
3
confirm with A&P
Service reports
36
since 1995

Registration

FAA Aircraft Registry · Oct 17, 2026
Last registered owner
Air Med Services LLC
Owner type
Corporation
City, state
Lafayette, LA
Certificate issued
Apr 2, 2003
Canceled
Apr 11, 2018
Airworthiness
Standard · Normal
Airworthiness date
May 30, 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-812
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
AC9AC8

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. 2003 – 2018Air Med Services LLCLafayette, LA

Individual owners are shown by city and state only.

Safety record

NTSB · Oct 15, 2026 · FAA ADs · Oct 17, 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 (36)

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.

  • Exhaust · clamp · looseJun 21, 2010

    AT TAKEOFF, THE NR1 ENGINE FIRE LIGHT ILLUMINATED. THE ACFT RETURNED TO LANDING ZONE WITHOUT INCIDENT. UPON INSP, IT WAS FOUND THAT THE NR 1 ENGINE INBD EXHAUST STACK HAD COME LOOSE FROM THE TURBINE EXHAUST COLLECTOR AND HAD WEDGED ITSELF INTO THE ENGINE COWLING. THE EXHAUST GASSES THEN FORCED…

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Fire protection · fire detector · corrodedJul 17, 2008

    NR 1 ENG FIRE DETECTOR WARNING LIGHT ILLUMINATED DURING CRUISE FLIGHT. AC DIVERTED FROM FLIGHT PATH AND LANDED ON THE SHOULDER OF THE ROAD. IT WAS DETERMINED THAT THERE WAS NOT A FIRE. MAINT WAS DISPATCHED TO THE LZ. IT WAS DETERMINED THAT CORROSION WAS EVIDENT BETWEEN THE WIRE TERMINAL AND THE…

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Engine · shield · separatedJul 4, 2004

    THE NR 1 NOZZLE SHIELD DOME SEPARATED CAUSING THE TURBINE NR 8 BEARING SCAVENGE STRUT TO CLOG WITH CARBON INDUCED BY THE EXCESS HEAT ALLOWED IN THE AREA BY THE MISSING DOME. WHEN THE SCAVENGE FLOW WAS COMPLETELY LOST, THE OIL WAS FORCED THROUGH THE NR 8 LABYRINTH SEAL CAUSING SMOKING AND AN…

    From FAA Service Difficulty Reports; matched by N-number and serial number.
Show all 10 reports
  • Main rotor · warning box · malfunctionedAug 6, 1999

    RPM WARNING BOX MALFUNCTION CAUSES RPM LIGHT TO CONTINUOUSLY BLINK.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Engine · nozzle shield · crackedJun 1, 1999

    ENGINE REMOVED DUE TO SMOKE ON SHUTDOWN. UPON INSPECTION OF TURBINE PARTS NOTED: CRACKED BEYOND SERVICEABLE LIMITS ON NR 1 NOZZLE SHIELD DOME AS MARKED.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Communications · control unit · malfunctionedJan 25, 1999

    CONTROL UNIT TRANSMITS CONSTANTLY. PERFORMED PRELIMINARY INSPECTION AND FOUND THUMBWHEEL INTERMITTENT.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Fuel · indicator · erraticNov 6, 1998

    FUEL LEVEL GAUGE, ERRATIC INDICATION READINGS.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Navigation · transponder · malfunctionedNov 5, 1998

    REPLY LIGHT BLINKS CONTINUOUSLY.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Tail rotor drive · drive shaft · wornNov 5, 1998

    TAIL ROTOR WORN BEYOND LIMITS.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Engine indicating · indicator · reads highJul 1, 1998

    EGT/TIT INDICATOR READS HIGH AND FLUCTUATES AT 900 DEGREES WHEN VIBRATING.

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

Showing the 10 most recent of 36 reports.

Sources

  • FAA Aircraft RegistryRegistration, owner city and state, airframe, engineupdated Oct 17, 2026
  • NTSB accident and incident databaseAccidents and incidents since 1982updated Oct 15, 2026
  • FAA Airworthiness Directives (Federal Register)ADs published since 1998updated Oct 17, 2026
  • FAA Service Difficulty ReportsReports since 1995updated Oct 16, 2026

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