# N495LF: 1983 Messerschmitt-Boelkow-Blohm BO-105S, registration cancelled 2012-11-29

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: November 29, 2012
- Status when cancelled: Registration expired, pending cancellation
- Airframe: [Messerschmitt-Boelkow-Blohm BO-105S](https://openairdocs.org/model/messerschmitt-boelkow-blohm-bo-105s) (registry code 5626006)
- Engine: [Allison 250-C20 series](https://openairdocs.org/engine/allison-250-c20-series) (registry code 03020)
- Data sheets: [TCDS H3EU](https://openairdocs.org/tcds/H3EU), [TCDS E4CE](https://openairdocs.org/tcds/E4CE) (OpenAirDocs)
- Serial number: S-645
- Year built: 1983
- Type of aircraft: Rotorcraft
- Engine type: Turbo-prop
- Airworthiness: Standard, normal
- Airworthiness date: February 10, 1997
- Certificate issued: August 19, 2003
- Last registry action: August 18, 2009
- Mode S code: A623AB
- Owner when cancelled: [Mse Air Group Inc](https://openairdocs.org/faa-owner/MSE%20AIR%20GROUP%20INC)
- Location: San Juan, PR, RQ
- Owner type: Corporation
- The mark today: https://openairdocs.org/aircraft/N495LF
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=495LF
- Page: https://openairdocs.org/deregistered/N495LF-2012-11-29

From the FAA registry file of October 29, 2026, cancelled registrations. Owners' street addresses are left out. The Mode S code belongs to the N-number, not the airframe.

ADs and bulletins for the Messerschmitt-Boelkow-Blohm BO-105S: https://openairdocs.org/model/messerschmitt-boelkow-blohm-bo-105s.md

## Service difficulty reports (9)

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

- [SDR 98ZZZX1882](https://openairdocs.org/sdr/98ZZZX1882), Jan 20, 1998: WARNING BOX. DEFECTIVE. HIGH M/R RPM WARNING WAS BEING CAUSED BY A DEFECTIVE RPM WARNING BOX AND FLUCTUATING TRIPLE TACH INDICATOR. BOTH UNITS WERE REPLACED AND A/C RETURNED TO SERVICE
- [SDR 98ZZZX1881](https://openairdocs.org/sdr/98ZZZX1881), Jan 20, 1998: INDICATOR. FLUCTUATES. HIGH M/R RPM WARNING WAS BEING CAUSED BY A DEFECTIVE RPM WARNING BOX AND FLUCTUATING TRIPLE TACH INDICATOR. BOTH UNITS WERE REPLACED AND A/C RETURNED TO SERVICE
- [SDR 98ZZZX334](https://openairdocs.org/sdr/98ZZZX334), Dec 4, 1997: TRANSCEIVER. MALFUNCTION. UNABLE TO AJDUST SIDE TONE/MIC GAIN DOWN TO A SUITABLE LEVEL TO MATCH OUTPUT OF OTHER AVIONICS EQUIPMENT. REMOVED AND REPLACED.
- [SDR 96ZZZX5764](https://openairdocs.org/sdr/96ZZZX5764), Sep 1, 1996: TACH GENERATOR. FAILED. TACH GEN DRIVE SHAFT DISENGAGED FROM INTERNAL DRIVE PIN.
- [SDR 96ZZZX3617](https://openairdocs.org/sdr/96ZZZX3617), May 29, 1996: GPS. MALFUNCTION. GPS HAD HARDWARE ERROR CODE 0010 ON INITIAL INSTALLATION AND START-UP. ALTHOUGH SATELLITE SIGNAL STRENGTHS WERE ALL IN THE 40'S, EVEN AFTER ALL SATELLITES WERE 
- [SDR 96ZZZX3618](https://openairdocs.org/sdr/96ZZZX3618), May 28, 1996: GPS. DEFECTIVE. GPS VERY SLOW TO COME ON LINE AT 5 TO 6 MINUTES OR LONGER. PART WAS JUST SENT IN FOR REPAIR LAST MONTH. REMOVED AND REPLACED.
- [SDR 96ZZZX3172](https://openairdocs.org/sdr/96ZZZX3172), May 3, 1996: GPS. DEFECTIVE. SHOWS RECEIVER HARDWARE ERROR CODE 0200. REPAIR AS NECESSARY.
- [SDR 95ZZZX7004](https://openairdocs.org/sdr/95ZZZX7004), Oct 2, 1995: TRANSCEIVER. INOP. TRANSCEIVER STILL INOP (WILL NOT TRANSMIT ON CHANNEL 'A').
- [SDR 95ZZZX7003](https://openairdocs.org/sdr/95ZZZX7003), Aug 27, 1995: GYRO. DEFECTIVE. GYRO READING INCORRECTLY STAYING FAR LEFT TO THE SIDE.

## NTSB investigations (1)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB MIA06LA044](https://openairdocs.org/ntsb/MIA06LA044), Jan 12, 2006: MBB BO-105S (N495LF), Ponce, PR, substantial damage. Probable cause: A loose B-nut on the PC line connecting the power turbine governor (PTGOV) to the fuel control unit (FCU) that created a leak and caused the engine to roll back to an idle condition, causing a low…

## FAA accident and incident reports (1)

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [Accident 20060112002309A](https://openairdocs.org/incident/20060112002309A), Jan 12, 2006: Bolkms BO105S (N495LF), Ponce, Puerto Rico, Substantial damage. (-23) On January 17, 2006, accident investigator [privacy data omitted], from rolls royce engines arrived in p.r., and on January 18, 2006 inspector [privacy…

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