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Aircraft record

N1174U1988 Messerschmitt-Bolkow-Blohm BK 117 B-2

Registration validUnclaimedSource: FAA, updated Oct 20, 2026

Safety record in brief:1 NTSB accident (substantial damage, Mar 2018)No ADs since 1998 matched13 service difficulty reports

Registration
Valid
expires Feb 28, 2030
Based in
Fillmore, CA
owner city / state
Engine
LTS-750-B-1 · 461 hp
Lycoming
Owners
1
since 2023
NTSB events
1
substantial, 2018
ADs may apply
0
confirm with A&P
Service reports
13
since 1995

Registration

FAA Aircraft Registry · Oct 20, 2026
Registered owner
Guardian Helicopters INC
Owner type
Corporation
City, state
Fillmore, CA
Certificate issued
Feb 21, 2023
Expires
Feb 28, 2030
Airworthiness
Standard · Transport
Airworthiness date
Dec 19, 1998

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-Bolkow-Blohm
Model
BK 117 B-2
Year
1988
Serial number
7146
Aircraft type
Rotorcraft
Category
Land
Certification
Type Certificated
Seats
7
Engines
2
Max takeoff weight
Up to 12,499 lb
Type certificate data sheet
H13EU
Mode S code
A0492B

Engine

Make and model
Lycoming Lts-750-B-1
Type
Turbo-shaft
Power
461 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. 2023 – nowGuardian Helicopters INCFillmore, CA · current
  2. until 1990Name not published by the FAAdifferent airframe: Cessna 172m S/N 17266875

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

Mar 5, 2018 · Sheboygan, WI

The restricted cyclic control movement for reasons that could not be determined because postaccident examination and testing of the cyclic control system did not reveal any evidence of mechanical malfunctions or failures that would have precluded normal operation.

Damage
Substantial
Injuries
None
Report
CEN18LA115

From NTSB records; matched by serial number.Read NTSB report (search CAROL for CEN18LA115)

Accident history for this model

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 (13)

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.

  • Rotor flight controls · cyclic control · malfunctionedMar 4, 2018

    PILOT CLAIMED THAT IN LEVEL FLIGHT THE CYCLIC FLIGHT CONTROL WOULD NOT MOVE MORE THAN AN INCH IN ANY DIRECTION. TRIED SYSTEM 2 AND HAD THE SAME BLOCKAGE AND WENT BACK TO SYSTEM 1. NOTED TO ME THAT THE COLLECTIVE AND YAW WAS ACTING NORMAL ONLY THE CYCLIC HAD BLOCKAGE. DID NOT WANT TO BREAK PASS THE…

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Engine indicating · indicator · fluctuatesJun 4, 2011

    MADE THE FIRST LEG FROM BASE TO HOSPITAL, LANDED FINE, KEPT BOTH ENGINE RUNNING AT IDLE, PATIENT LOADED, READY TO GO, HOVER CHECK WITH BOTH ENG NR 1 & NR 2 TORQUE NEEDLE MATCH AT 60 PERCENT, MAX PERFORMANCE TAKEOFF TO ABOUT 150FT OGE, ENG NR2 TORQUE GAUGE DROPPED TO 0 AND ENG NR1 TOT 800C, GOT IN…

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Tail rotor drive · gearbox · making metalApr 15, 2011

    PILOT REPORTED A TAIL ROTOR CHIP LIGHT FLICKER AND THE LIGHT WENT ON SOLID AT LANDING. PILOT CALLED THE MECHANIC WHO INSPECTED THE CHIP DETECTOR AND FOUND A CHIP. MECHANIC THEN DRAINED THE GEAR BOX, SERVICED AND DID A 30 MINUTE GROUND RUN. INSPECTED THE CHIP DETECTOR AND FOUND METAL PARTICLES. THE…

    From FAA Service Difficulty Reports; matched by N-number and serial number.
Show all 10 reports
  • Fuselage · floor panel · crackedMar 31, 2011

    CRACK DISCOVERED DURING INSP ON AFT DECK AT STA 6750, BL 500, AND WL 2620. ACFT BEING FERRIED TO FACILITATE REPAIR.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Fuselage · structure · crackedMar 31, 2011

    CRACK DISCOVERED DURING INSPECTION ON VERTICAL FIN CAP AT STA 10950, BL 20, AND WL 4050. ACFT BEING FERRIED TO FACILITATE REPAIR.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Structures (general) · bolt · misinstalledDec 10, 2009

    FOUND HARDWARE INSTALLED INCORRECTLY CAUSING: WEAR IN THE HYD PACK AND MOUNT HOLES. CRACKS IN THE CABIN FLOOR AND CROSS STRUCTURE SUPPORT IN THE CABIN CEILING UNDER THE HYD PACK. AFT HYD MOUNT ON DECK HAS WEAR IN THE BUSHING HOLES 0.100" THICK, FITTING DAMAGE IN 0.025" DEEP.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Tail rotor drive · sleeve · wornDec 5, 2009

    PILOT FELT BINDING IN TAIL ROTOR CONTROLS IN HOVER, MX IS TROUBLESHOOTING PROBLEM. REPLACED CSAS COMPUTER AND CSAS ACTUATOR PROBLEM WAS GONE FOR ABOUT 12 FLIGHT HOURS. PROBLEM RETURNED. THIS TIME WE FOUND THE SLIDING SLEEVE TO BE BINDING ON THE TAIL ROTOR SHAFT WHEN RADIAL FORCE WAS APPLIED TO THE…

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Electrical power · brushes · arcedOct 30, 2003

    STARTER GENERATOR BRUSHES STARTED ARCING AFTER ONLY 119.6 HOURS OF USE. . REPLACED WITH SERVICEABLE UNIT.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Engine indicating · indicator · malfunctionedAug 27, 2003

    REQUEST WARRANTY REPAIR. NR 1 N2 NEEDLE READS 2 PERCENT WHEN POWERED UP. NR 1 N2 NEEDLES READS 100 PERCENT, NR 2 N2 NEEDLES READS 99 PERCENT, AND NR READS 98 PERCENT AT FULL "FLY" RPM. PART ONLY LASTED 29.5 HOURS FROM THE LAST REPAIR. UNIT SENT OUT TO AEC FOR WARRANTY REPAIR UNDER RO:9-090002-19…

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Electrical power · starter gen · failedAug 25, 2003

    STARTER GENERATOR FAILED. WOULD NOT TEST. REPLACED WITH SERVICEABLE UNIT. 9/4/03

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

Showing the 10 most recent of 13 reports.

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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