# N624MB: 1986 Messerschmitt-Boelkow-Blohm BO-105S, registration cancelled 2013-05-17 - Type: Cancelled registration (FAA registry, deregistered aircraft) - Cancelled: May 17, 2013 - Exported to: Australia - Status when cancelled: Valid registration - 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-751 - Year built: 1986 - Type of aircraft: Rotorcraft - Engine type: Turbo-prop - Airworthiness: Standard, normal - Airworthiness date: May 29, 1996 - Certificate issued: February 23, 2004 - Last registry action: April 1, 2010 - Mode S code: A8262E - Owner when cancelled: [Metro Aviation Inc](https://openairdocs.org/faa-owner/METRO%20AVIATION%20INC) - Location: [Shreveport, LA](https://openairdocs.org/faa-place/LA/Shreveport) - Owner type: Corporation - Owner's area on the map: 32.5905° N, 93.8637° W: Placed by OpenAirDocs at the center of ZIP code 71107, within about 7 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based - The mark today: https://openairdocs.org/aircraft/N624MB - FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=624MB - Page: https://openairdocs.org/deregistered/N624MB-2013-05-17 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 (37) Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model. - [SDR HEEA062917](https://openairdocs.org/sdr/HEEA062917), Jul 13, 1999: POWER SUPPLY. FAILED. POWER UNIT BLOWS FUSE. - [SDR HEEA061797](https://openairdocs.org/sdr/HEEA061797), Apr 6, 1999: TRANSDUCER. READS HIGH. TRANSDUCER INDICATES HIGH OIL PRESSURE. - [SDR HEEA060232](https://openairdocs.org/sdr/HEEA060232), Jan 22, 1999: TRANSCEIVER. MALFUNCTIONED. FREQUENCY GOES TO 120.00 MHZ WHEN POWER IS CYCLED. - [SDR HEEA0016727](https://openairdocs.org/sdr/HEEA0016727), Nov 6, 1998: REGULATOR. FAILED. GENERATOR WILL NOT COME ON-LINE. - [SDR HEEA0016705](https://openairdocs.org/sdr/HEEA0016705), Nov 6, 1998: INDICATOR. STICKING. OIL INDICATION'S NR 2 NEEDLE INTERMITTENTLY STICKS ON ZERO. - [SDR HEEA0016700](https://openairdocs.org/sdr/HEEA0016700), Nov 6, 1998: OIL COOLER. LEAKING. OIL COOLER LEAKING FROM CENTER OF COOLER ASSY. - [SDR HEEA0015917](https://openairdocs.org/sdr/HEEA0015917), Aug 28, 1998: TRANSDUCER. FAILED. NO OIL PRESSURE READING ON ENGINE. - [SDR HEEA0014177](https://openairdocs.org/sdr/HEEA0014177), May 12, 1998: GPS. FAILED. GPS INOPERATIVE. PERFORMED PRELIMINARY INSPECTION. FOUND UNIT HAS BURNT PANEL LIGHTS. TIME SINCE REPAIR 100:30. - [SDR HEEA0013737](https://openairdocs.org/sdr/HEEA0013737), Apr 2, 1998: INDICATOR. STICKS. EXH TEMP NEEDLE STICKS ON HIGH SIDE. - [SDR HEEA0013595](https://openairdocs.org/sdr/HEEA0013595), Mar 26, 1998: INDICATOR. FAILED. NR2 NEEDLE DOESN'T MOVE WHEN POWER IS APPLIED. - [SDR HEEA0013497](https://openairdocs.org/sdr/HEEA0013497), Mar 19, 1998: GPS 150. FAILED. CANNOT ACQUIRE SATELLITES FOR 1 1/2 HOURS ON 1ST FLIGHT OF DAY. PERFORMED PRELIMINARY INSPECTION. FOUND UNIT TO TAKE EXCESSIVELY LONG TO LOCK ON. - [SDR HEEA0013190](https://openairdocs.org/sdr/HEEA0013190), Mar 4, 1998: GPS. FAILED. INNER KNOB ON GPS WILL NOT SELECT CORRECT CHOICE INTERMITTENTLY. - [SDR HEEA0013108](https://openairdocs.org/sdr/HEEA0013108), Mar 2, 1998: GPS. FAILED. GPS DISPLAY FADES OUT AFTER 3 TO 4 MINUTES. NOTE: FADES MORE AT NIGHT. TIME SINCE REPAIR 0:00. - [SDR HEEA0012066](https://openairdocs.org/sdr/HEEA0012066), Nov 19, 1997: IGNITER BOX. FAILED. IGNITER BOX BROKEN INSULATION AT CONNECTING POINT. - [SDR HEEA0011942](https://openairdocs.org/sdr/HEEA0011942), Nov 12, 1997: TOT INDICATOR. FAILED. EXCESSIVE FRICTION ERROR. SENT TO MASCO FOR INSPECTION AND REPAIR. - [SDR HEEA0011875](https://openairdocs.org/sdr/HEEA0011875), Nov 10, 1997: FLOOR PLATE. CORRODED. FLOOR PLATE CORRODED AND SEPARATED BEYOND REPAIR. - [SDR HEEA0011548](https://openairdocs.org/sdr/HEEA0011548), Oct 16, 1997: SHAFT. CORRODED. T/R SHAFT REPAIR BEARING SEAT ZONE D DUE TO CORROSION. - [SDR HEEA0010084](https://openairdocs.org/sdr/HEEA0010084), Jun 11, 1997: TRANSMITTER. OUT OF TOL. INDICATES OUT OF TOLERANCE. - [SDR HEEA0010047](https://openairdocs.org/sdr/HEEA0010047), Jun 5, 1997: INDICATOR. FLUCTUATES. #2 ENGINE OIL TEMPERATURE FLUCTUATING. - [SDR HEEA0010023](https://openairdocs.org/sdr/HEEA0010023), Jun 3, 1997: INDICATOR. FAILED. #1 ENGINE OIL PRESSURE CLIMBED INTO THE YELLOW. SENT FOR INSPECTION AND REPAIR. - [SDR HEEA968491](https://openairdocs.org/sdr/HEEA968491), Nov 20, 1996: CLUTCH. WORN EXCESSIVELY. INNER CAGE WORN BEYOND LIMITS AT 600 HOUR INSPECTION. REPLACED WITH SERVICEABLE CLUTCH ASSEMBLY. - [SDR HEEA968439](https://openairdocs.org/sdr/HEEA968439), Nov 6, 1996: TRANSCEIVER. DEFECTIVE. LED LIGHTS WORK INTERMITTENTLY. - [SDR HEEA967700](https://openairdocs.org/sdr/HEEA967700), Aug 29, 1996: TRANSCEIVER. DEFECTIVE. STANDBY SIDE HAS BURNT SEGMENTS. - [SDR HEEA967222](https://openairdocs.org/sdr/HEEA967222), May 9, 1996: CLOCK. BROKEN. STOPPER FOR WINDER IS BROKEN. - [SDR HEEA966892](https://openairdocs.org/sdr/HEEA966892), Apr 2, 1996: TRANSCEIVER. DEFECTIVE. TOWER REPORTS UNIT INTERMITTENT. REPLACED INOPERATIVE CR202 MIXER DIODE. ALSO REPLACED FACEPLATE ASSEMBLY DUE TO BROKEN KNOB. REPLACED DETERIORATED R477 RESISTO - [SDR HEEA966699](https://openairdocs.org/sdr/HEEA966699), Feb 20, 1996: BLADE. CRACKED. M/R BLADE NOSE AND NECK SHELLS CRACKED AND SEPARATED AT ROOT END AREA. - [SDR HEEA966698](https://openairdocs.org/sdr/HEEA966698), Feb 20, 1996: BLADE. CRACKED. M/R BLADE NOSE AND NECK SHELLS CRACKED AND SEPARATED AT ROOT END AREA. - [SDR HEEA966355](https://openairdocs.org/sdr/HEEA966355), Jan 4, 1996: CALIPER. DEFECTIVE. PISTON WILL NOT RETRACT. REPLACED WITH SERVICEABLE CALIPER. - [SDR HEEA956168](https://openairdocs.org/sdr/HEEA956168), Dec 5, 1995: INDICATOR. INTERMITTENT. NEEDLE HAS AN INTERMITTENT INDICATION. - [SDR HEEA956167](https://openairdocs.org/sdr/HEEA956167), Dec 5, 1995: TRANSMITTER. DEFECTIVE. NEEDLE HAS AN INTERMITTENT INDICATION. - [SDR HEEA955661](https://openairdocs.org/sdr/HEEA955661), Aug 31, 1995: BRAKE HOUSING. DEFECTIVE. ROTOR BRAKE PUCKS REMAIN IN THE EXTENDED POSITION DRAGGING ON ROTOR BRAKE DISC. PUCKS WILL NOT FULLY RETRACT. INSTALLED SERVICEABLE ROTOR BRAKE CALIPER ASSEMBLY - [SDR HEEA955526](https://openairdocs.org/sdr/HEEA955526), Aug 2, 1995: SHAFT SEAL. LEAK. SEALING LIP ON SEALS FOUND TO BE DEFECTIVE CAUSING OIL TO LEAK OUT OF MAIN ROTOR HEAD. - [SDR HEEA955415](https://openairdocs.org/sdr/HEEA955415), Jul 24, 1995: INDICATOR. OUT OF TOLERANCE. INDICATOR READS LOW OUT OF TOLERANCE. - [SDR HEEA955414](https://openairdocs.org/sdr/HEEA955414), Jul 24, 1995: TRANSMITTER. READS LOW. READS LOW OUT OF TOLERANCE. - [SDR HEEA955395](https://openairdocs.org/sdr/HEEA955395), Jul 20, 1995: INDICATOR. WONT CALIB. INDICATOR WILL NOT CALIBRATE. - [SDR HEEA955394](https://openairdocs.org/sdr/HEEA955394), Jul 20, 1995: TRANSMITTER. WONT CALIB. WILL NOT CALIBRATE. - [SDR HEEA955184](https://openairdocs.org/sdr/HEEA955184), Jun 13, 1995: RING WASHER. DEFECTIVE. CLAW OVERLAPS AND DOESN'T SIT FLUSH IN TRANSMISSION MOUNT PAD. UNABLE TO GET BEARING IN CLAW. ## Other aircraft with N624MB - [Registered now](https://openairdocs.org/aircraft/N624MB): Textron 525C, S/N 525C0449, built 2024 --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.