# N105LC: 1988 Messerschmitt BO105CBS

- Status: Valid registration
- Airframe: [Messerschmitt BO105CBS](https://openairdocs.org/model/messerschmitt-bo105cbs) (registry code 5626008, 6 seats)
- Engine: [Allison 250-C20 series](https://openairdocs.org/engine/allison-250-c20-series) (registry code 03020)
- Data sheets: [TCDS E4CE](https://openairdocs.org/tcds/E4CE) (Rolls-Royce Corporation) (OpenAirDocs)
- Serial number: S789
- Year built: 1988
- Type: Rotorcraft
- Engine type: Turbo-shaft
- Airworthiness: Standard, normal
- Airworthiness date: November 2, 1988
- Certificate issued: November 28, 2023
- Expires: November 30, 2030
- Mode S code: A01844
- Registered owner: [Centerline Holdings Inc](https://openairdocs.org/faa-owner/CENTERLINE%20HOLDINGS%20INC)
- Location: [Camden, DE](https://openairdocs.org/faa-place/DE/Camden)
- Owner type: Corporation
- Owner's area on the map: 39.0847° N, 75.6274° W: Placed by OpenAirDocs at the center of ZIP code 19934, within about 4 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=105LC
- Page: https://openairdocs.org/aircraft/N105LC

From the FAA registry file of October 24, 2026. ADs below are matched by the registry's airframe and engine model codes. They may apply; each AD's applicability can narrow it by serial number, part number or installed equipment. This is not a compliance determination. The registry lists only the engine series, so ADs for every Allison 250-C20 model are included.

## ADs that may apply (OpenAirDocs): 21 in force

### Matched by airframe (Messerschmitt BO105CBS)

None in force.

### Matched by engine (Allison 250-C20 series)

- [AD 2022-10-06](https://openairdocs.org/ad/2022-10-06): Turbine Section · Rolls-Royce 250-C20, 250-C20B, 250-C20C (T63-A-720) and 9 more. Effective Jun 28, 2022
- [AD 2018-13-01](https://openairdocs.org/ad/2018-13-01): Turbine Governor · Rolls-Royce 250-C10 (T63-A-5), 250-C18, 250-C18A and 24 more. Effective Aug 16, 2018
- [AD 2006-16-04](https://openairdocs.org/ad/2006-16-04): Inspection of the fuel nozzle screen · Rolls-Royce 250-B15A, 250-B15E, 250-B15G and 43 more. Effective Sep 7, 2006
- [AD 2006-13-06](https://openairdocs.org/ad/2006-13-06): Gas producer rotor assembly tie bolts · Rolls-Royce 250-B17, 250-B17B, 250-B17C and 16 more. Effective Jul 26, 2006
- [AD 2005-10-13](https://openairdocs.org/ad/2005-10-13): Turbine energy absorbing ring · Rolls-Royce 250-B17B, 250-B17C, 250-B17D and 7 more. Effective Jun 22, 2005
- [AD 2004-26-09](https://openairdocs.org/ad/2004-26-09): Compressor Adaptor Couplings · Rolls-Royce 250-B17, 250-B17B, 250-B17C and 8 more. Effective Feb 8, 2005
- [AD 2001-24-12](https://openairdocs.org/ad/2001-24-12): Helical Torquemeter Gearshaft Assembly · Rolls-Royce 250-B17, 250-B17C, 250-B17D and 13 more. Effective Dec 19, 2001
- [AD 98-24-28](https://openairdocs.org/ad/98-24-28): Main Fuel Control Bellows · Rolls-Royce 250-B15A, 250-B15E, 250-B15G and 36 more. Effective Jan 7, 1999
- [AD 96-19-01](https://openairdocs.org/ad/96-19-01): Superior Air Parts Manufacture Approval (PMA) Bearings · Rolls-Royce 250-B15G, 250-B17F, 250-B17F/1 and 17 more. Effective Sep 26, 1996
- [AD 93-25-05](https://openairdocs.org/ad/93-25-05): Driveshaft Flex Coupling Bolts, Bushings, and Nuts · Rolls-Royce 250-C20S with STC SE2352NM. Effective Feb 22, 1994
- [AD 88-17-01](https://openairdocs.org/ad/88-17-01): Fuel Controls · Rolls-Royce 250-B17, 250-B17B, 250-B17C and 26 more. Effective Mar 1, 1989
- [AD 83-03-02 R1](https://openairdocs.org/ad/83-03-02-R1): Slotted Third Stage Turbine Wheels · Rolls-Royce 250-B17, 250-B17B, 250-B17C and 5 more. Effective Feb 28, 1984
- [AD 82-24-05](https://openairdocs.org/ad/82-24-05): Control Assembly and Power Turbine Governor Assembly · Rolls-Royce 250-B15A, 250-B15E, 250-B15G and 43 more. Effective Nov 26, 1982
- [AD 82-13-03](https://openairdocs.org/ad/82-13-03): Modify Engine High Pressure Fuel Control Filter Assembly · Rolls-Royce 250-C20 and 250-C20B. Effective Jul 1, 1982
- [AD 79-21-01 R1](https://openairdocs.org/ad/79-21-01-R1): Third Stage Turbine Wheel Blade · Rolls-Royce 250-B17, 250-B17B, 250-B17C and 3 more. Effective Jun 3, 1981
- [AD 78-14-08](https://openairdocs.org/ad/78-14-08): Fuel Pump Drive Spline · Rolls-Royce 250-C18, 250-C18A, 250-C18B and 3 more. Effective Oct 24, 1979
- [AD 77-15-12](https://openairdocs.org/ad/77-15-12): Power Turbine Coupling Nut · Rolls-Royce 250-B15A, 250-B15E, 250-B15G and 23 more. Effective Sep 23, 1977
- [AD 77-09-08](https://openairdocs.org/ad/77-09-08): Bleed Valve Diaphragm · Rolls-Royce 250-B17, 250-B17B, 250-C20 and 2 more. Effective Jul 18, 1977
- [AD 74-14-03](https://openairdocs.org/ad/74-14-03): Fuel Control Rigging · Rolls-Royce 250-C20. Effective Jul 10, 1974
- [AD 73-19-07](https://openairdocs.org/ad/73-19-07): Turbine Governor-To-Fuel Control Tube · Rolls-Royce 250-C20. Effective Sep 14, 1973
- [AD 72-03-06](https://openairdocs.org/ad/72-03-06): Turbine Wheels · Rolls-Royce 250-B15A, 250-B15E, 250-B15G and 9 more. Effective Feb 8, 1972

### Historical (superseded or no longer in force)

- [AD 2017-18-14](https://openairdocs.org/ad/2017-18-14) (historical): Turbine Section · Rolls-Royce 250-C20, 250-C20B, 250-C20F and 8 more. Effective Oct 13, 2017
- [AD 2015-02-22](https://openairdocs.org/ad/2015-02-22) (historical): Repetitive visual inspections · Rolls-Royce 250-B17, 250-B17B, 250-B17C and 15 more. Effective Mar 9, 2015
- [AD 2012-14-06](https://openairdocs.org/ad/2012-14-06) (historical): Released turbine blades and shrouds · Rolls-Royce 250-C20, 250-C20B and 250-C20R/2. Effective Aug 14, 2012
- [AD 2004-24-09](https://openairdocs.org/ad/2004-24-09) (historical): Fuel nozzle · Rolls-Royce 250-B15A, 250-B15E, 250-B15G and 40 more. Effective Jan 5, 2005
- [AD 2001-20-51](https://openairdocs.org/ad/2001-20-51) (historical): Helical Torquemeter Gearshaft Assembly · 250-B17, 250-B17C, 250-B17D and 12 more

## Information bulletins (advisory) (1 in force)

- [SAIB CE-01-10](https://openairdocs.org/saib/CE-01-10): . Issued Jan 24, 2001

## NTSB investigations

None matched to N105LC.

## FAA accident and incident reports

None matched to N105LC.

## Service difficulty reports (22)

As reported by operators and repair stations. Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model.

- [SDR R7MR35308](https://openairdocs.org/sdr/R7MR35308), Jan 29, 2002: TRANSMITTER. INOPERATIVE. PRESSURE TRANSMITTER, UNIT INOPERATIVE. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.
- [SDR RYMA33656](https://openairdocs.org/sdr/RYMA33656), Aug 29, 2001: TRANSMISSION. FAILED. MAKING METAL. TWO PRIOR PROBLEMS WITH MM WERE REPAIRED UNDER WARRANTY BY MFG. REPLACED WITH NEW UNIT CORRECTED PROBLEM.
- [SDR 2001F00506](https://openairdocs.org/sdr/2001F00506), Aug 29, 2001: TRANSMISSION. MAKING METAL. MAIN ROTOR TRANSMISSION MAKING METAL. TWO PRIOR PROBLEMS WITH MM WERE REPAIRED UNDER WARRANTY BY ECL. REPLACED WITH NEW UNIT CORRECTED PROBLEM. (M)
- [SDR R7MA78932441](https://openairdocs.org/sdr/R7MA78932441), Nov 22, 2000: TRANSMITTER. INOPERATIVE. OIL PRESSURE TRANSMITTER INOPERATIVE. NO PRESSURE INDICATION. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.
- [SDR R7MA78932440](https://openairdocs.org/sdr/R7MA78932440), Nov 14, 2000: TRANSMITTER. INOPERATIVE. OIL PRESSURE TRANSMITTER INOPERATIVE. NO PRESSURE INDICATION. REPLACED WITH NEW OIL PRESSURE TRANSMITTER, CORRECTED PROBLEM.
- [SDR R7MA78932439](https://openairdocs.org/sdr/R7MA78932439), Oct 18, 2000: TRANSMITTER. INOPERATIVE. PRESSURE TRANSMITTER INOPERATIVE. INDICATOR PEGS ANYTIME BAT SWITCH IS IN ON POSITION. REPLACED PRESSURE TRANSMITTER WITH NEW UNIT, CORRECTED PROBLEM.
- [SDR 20001013SH012](https://openairdocs.org/sdr/20001013SH012), Aug 1, 2000: TRANSMITTER. INOPERATIVE. PRESSURE TRANSMITTER UNIT INOPERATIVE. REPLACED WITH NEW UNIT, CORRECTED PROBLEM. (X)
- [SDR 20001013SH014](https://openairdocs.org/sdr/20001013SH014), May 23, 2000: TRANSMITTER. INOPERATIVE. TRANSMMITTER UNIT INOPERATIVE. REPLACED WITH NEW UNIT, CORRECTED PROBLEM. (X)
- [SDR 20001013SH013](https://openairdocs.org/sdr/20001013SH013), May 13, 2000: TRANSMITTER. INOPERATIVE. TRANSMITTER UNIT INOPERATIVE. REPLACED WITH NEW UNIT, CORRECTED PROBLEM. (X)
- [SDR 99ZZZX3768](https://openairdocs.org/sdr/99ZZZX3768), Jul 20, 1999: TRANSMITTER. INOPERATIVE. FUEL PRESSURE TRANSMITTER INOPERATIVE. PEGGED HIGH. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.
- [SDR 99ZZZX3767](https://openairdocs.org/sdr/99ZZZX3767), Jul 17, 1999: TRANSMITTER. INOPERATIVE. FUEL PRESSURE TRANSMITTER INOPERATIVE. PEGGED HIGH. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.
- [SDR 99ZZZX3777](https://openairdocs.org/sdr/99ZZZX3777), Dec 28, 1998: TRANSMITTER. INOPERATIVE. FUEL PRESSURE TRANSMITTER INOPERATIVE. PEGGED HIGH. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.
- [SDR 99ZZZX3776](https://openairdocs.org/sdr/99ZZZX3776), Oct 27, 1998: TRANSMITTER. INOPERATIVE. FUEL PRESSURE TRANSMITTER INOPERATIVE. PEGGED HIGH. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.
- [SDR 99ZZZX3775](https://openairdocs.org/sdr/99ZZZX3775), Oct 27, 1998: TRANSMITTER. INOPERATIVE. FUEL PRESSURE TRANSMITTER INOPERATIVE. PEGGED HIGH. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.
- [SDR 98ZZZX3108](https://openairdocs.org/sdr/98ZZZX3108), Jul 6, 1998: TRANSMITTER. FAILED. PRESSURE TRANSMITTER PEGGED TO HIGH SIDE. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.
- [SDR 98ZZZX3106](https://openairdocs.org/sdr/98ZZZX3106), Jun 12, 1998: TRANSMITTER. FAILED. PRESSURE TRANSMITTER PEGGED TO HIGH SIDE. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.
- [SDR 98ZZZX3107](https://openairdocs.org/sdr/98ZZZX3107), Feb 18, 1998: TRANSMITTER. FAILED. PRESSURE TRANSMITTER PEGGED TO HIGH SIDE. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.
- [SDR 98ZZZX1791](https://openairdocs.org/sdr/98ZZZX1791), Jan 25, 1998: TRANSMITTER. FAILED. PRESSURE TRANSMITTER UNIT CAUSES PRESSURE GAUGE TO FLUCTUATE. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.
- [SDR 98ZZZX1790](https://openairdocs.org/sdr/98ZZZX1790), Jan 16, 1998: TRANSMITTER. FAILED. PRESSURE TRANSMITTER UNIT CAUSES PRESSURE GAUGE TO FLUCTUATE. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.
- [SDR 97ZZZX5078](https://openairdocs.org/sdr/97ZZZX5078), Nov 12, 1997: GEARBOX. BROKEN. ENGINE HAD GEARBOX THAT HAD UPPER LEFT COMPRESSOR MOUNT BROKEN OFF. FOUND NO REASON FOR BREAKAGE.
- [SDR 96ZZZX5935](https://openairdocs.org/sdr/96ZZZX5935), Oct 4, 1996: TRANSMISSION. MAKING METAL. TRANSMISSION REMOVED DUE TO METAL CONTAMINATION IN THE OIL. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.
- [SDR 95ZZZY0772](https://openairdocs.org/sdr/95ZZZY0772), May 10, 1995: PRESSURE PICK-OF. DEFECTIVE. INDICATOR PEGGED. REPLACED WITH NEW UNIT(S), CORRECTED PROBLEM.

## STCs that may be installed (OpenAirDocs) (8)

Approved for this aircraft's airframe or engine model, in force first, then newest. The registry doesn't record which STCs an aircraft has; its records do.

### Approved for the engine (Allison 250-C20 series)

- [STC SE2352NM](https://openairdocs.org/stc/SE2352NM): Modification of turbine engine. Fifty-Ten-Yankee LLC. Lists 250-C20S
- [STC SE5511NM](https://openairdocs.org/stc/SE5511NM): Installation of compressor discharge pressue (PC) valve. Bell Helicopter Textron Inc
- [STC SE769NW](https://openairdocs.org/stc/SE769NW): Installation of Soloy Part No. 250-1001-1 fuel line. Siam Hiller Holdings Inc
- [STC SE00014EN](https://openairdocs.org/stc/SE00014EN): Installation of the Pratt & Whitney Engine Services, Inc. CrossCheck Engine Monitor Kit P/N HUMS-K-071-1, Rev. A on the specified PT6A engine models and kit P/N HUMS-K-071-2 on the specified A250 engine models. Pratt & Whitney Engine Services Inc. Lists 250-C20B
- [STC SE00027EN](https://openairdocs.org/stc/SE00027EN): Installation of Pratt & Whitney Engine Services Inc. Intellistart plus electronic control unit (ECU), P/N DPU-K-010 on the specified 250 engine models. Pratt & Whitney Engine Services Inc
- [STC SE492GL](https://openairdocs.org/stc/SE492GL): Incorporation of a fuel flow transducer. Shadin Avionics
- [STC ST00037AT](https://openairdocs.org/stc/ST00037AT): Unison igniter plugs, P/N 9044400-1. Unison Industries
- [STC SQ00338AT](https://openairdocs.org/stc/SQ00338AT): Unison igniter leads, P/N9048222-101, 102, 103, 104, 105, 106. Unison Industries

## Related

- Other Messerschmitt BO105CBS aircraft: https://openairdocs.org/model/messerschmitt-bo105cbs/aircraft.md
- The Allison 250-C20 series engine: https://openairdocs.org/engine/allison-250-c20-series.md

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