# Service difficulty reports: N407MM, cancelled Jun 28, 2001 A list on [N407MM, cancelled Jun 28, 2001](https://openairdocs.org/deregistered/N407MM-2001-06-28.md). Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model. Newest first. Page 1 of 3 · 106 reports - [SDR HEEA066519](https://openairdocs.org/sdr/HEEA066519.md): Switch · broken · Feb 16, 2000 · N407MM · Bell 407 · Main Rotor Control > SWITCH BROKEN. - [SDR HEEA065904](https://openairdocs.org/sdr/HEEA065904.md): Duct · cracked · Feb 4, 2000 · N407MM · Bell 407 · Engine Collector/Tailpipe/Nozzle > DUCT CRACKED. - [SDR HEEA065898](https://openairdocs.org/sdr/HEEA065898.md): Bearing · worn · Feb 4, 2000 · N407MM · Bell 407 · Tail Rotor Head > WORN BEARINGS. - [SDR HEEA065881](https://openairdocs.org/sdr/HEEA065881.md): Frahm Assy · damaged · Feb 4, 2000 · N407MM · Bell 407 · Main Rotor Head > SPRING BROKEN ON FRAM ASSY. - [SDR HEEA065874](https://openairdocs.org/sdr/HEEA065874.md): Bearing · worn · Feb 4, 2000 · N407MM · Bell 407 · Tail Rotor Blades > WORN FEATHERING BEARINGS. SERIAL NUMBERS REMOVED ARE A-2248 AND A-2252. REPLACED WITH SERIAL NUMBERS A-2099 (DMR NR 6861800) AND A-2098 (DMR NR 6861801). - [SDR HEEA065628](https://openairdocs.org/sdr/HEEA065628.md): Bearing · damaged · Jan 7, 2000 · N407MM · Bell 407 · Main Rotor Head > ELASTOMER IN FLAPPING BEARING. PART SCRAPPED. - [SDR HEEA065619](https://openairdocs.org/sdr/HEEA065619.md): Power Supply · intermittent · Jan 7, 2000 · N407MM · Bell 407 · Flight Compartment Lighting > POWER SUPPLY WORKED INTERMITTENTLY. - [SDR HEEA065618](https://openairdocs.org/sdr/HEEA065618.md): Bearing · worn · Jan 7, 2000 · N407MM · Bell 407 · Main Rotor Drive System > BEARING WORN. REPLACED WITH SERIAL NUMBERS A-2319 AND A-1979. - [SDR HEEA065473](https://openairdocs.org/sdr/HEEA065473.md): Lever Assembly · worn · Dec 20, 1999 · N407MM · Bell 407 · Main Rotor Drive System > LEVER ASSEMBLY WORN. - [SDR HEEA065472](https://openairdocs.org/sdr/HEEA065472.md): Lever Assembly · worn · Dec 20, 1999 · N407MM · Bell 407 · Main Rotor Drive System > LEVER ASSEMBLY WORN. - [SDR HEEA065471](https://openairdocs.org/sdr/HEEA065471.md): Link Assembly · worn · Dec 20, 1999 · N407MM · Bell 407 · Main Rotor Drive System > LINK ASSEMBLY WORN. - [SDR HEEA065470](https://openairdocs.org/sdr/HEEA065470.md): Link Assembly · worn · Dec 20, 1999 · N407MM · Bell 407 · Main Rotor Drive System > LINK ASSEMBLY WORN. - [SDR HEEA065449](https://openairdocs.org/sdr/HEEA065449.md): Seal · scratched · Dec 17, 1999 · N407MM · Bell 407 · Main Rotor Gearbox > SCRATCHED ALONG LONG SEAL AREA. - [SDR HEEA065445](https://openairdocs.org/sdr/HEEA065445.md): Pump · worn · Dec 17, 1999 · N407MM · Bell 407 · Main Rotor Gearbox > SPLINES WORN ON OIL PUMP. - [SDR HEEA065368](https://openairdocs.org/sdr/HEEA065368.md): Adapter · worn · Dec 9, 1999 · N407MM · Bell 407 · Tail Rotor Gearbox > OIL PUMP SPLINES WORN. - [SDR HEEA065344](https://openairdocs.org/sdr/HEEA065344.md): Mount · damaged · Dec 8, 1999 · N407MM · Bell 407 · Tail Rotor Head > MOUNT RUBBER TORN. - [SDR HEEA065343](https://openairdocs.org/sdr/HEEA065343.md): Mount · damaged · Dec 8, 1999 · N407MM · Bell 407 · Tail Rotor Head > MOUNT RUBBER TORN. - [SDR HEEA065322](https://openairdocs.org/sdr/HEEA065322.md): Bearing · worn · Dec 7, 1999 · N407MM · Bell 407 · Tail Rotor Blades > WORN BEARINGS. - [SDR HEEA065319](https://openairdocs.org/sdr/HEEA065319.md): Bearing · separated · Dec 7, 1999 · N407MM · Bell 407 · Tail Rotor Head > ELASTOMER SEPARATED AND EXTRUDING. - [SDR HEEA065259](https://openairdocs.org/sdr/HEEA065259.md): Cartridge · failed · Nov 19, 1999 · N407MM · Bell 407 · Fuel Boost Pump > FUEL PUMP QUITS RUNNING IN A SHORT TIME. - [SDR HEEA064989](https://openairdocs.org/sdr/HEEA064989.md): Brushes · worn · Nov 8, 1999 · N407MM · Bell 407 · Starter-Generator > STARTER/GENERATOR FAILED 300 HOUR INSPECTION. INSPECTED BY ACCESSORY OVERHAUL SHOP AND FOUND BRUSHES WERE EXCESSIVELY WORN. - [SDR HEEA064965](https://openairdocs.org/sdr/HEEA064965.md): Gauge · inoperative · Nov 5, 1999 · N407MM · Bell 407 · Emergency Flotation Section > PRESSURE GAUGE WILL NOT WORK. - [SDR HEEA064856](https://openairdocs.org/sdr/HEEA064856.md): Universal · worn · Oct 19, 1999 · N407MM · Bell 407 · Main Rotor Drive System > BEARINGS WORN. - [SDR HEEA064694](https://openairdocs.org/sdr/HEEA064694.md): Link · worn · Oct 7, 1999 · N407MM · Bell 407 · Tail Rotor Control System > WORN BEARINGS. SERIAL NUMBERS REMOVED ARE NHFS-3740 AND NHFS-3707. REPLACED WITH SERIAL NUMBERS NHFS-4344 AND NHFS-4290. - [SDR HEEA064681](https://openairdocs.org/sdr/HEEA064681.md): Bearing · rough · Oct 5, 1999 · N407MM · Bell 407 · Main Rotor Drive System > BEARINGS ROUGH. SERIAL NUMBERS REMOVED ARE J98-0270 AND J98-0280. REPLACED WITH SERIAL NUMBERS E99-0669 AND F99-1670. - [SDR HEEA064680](https://openairdocs.org/sdr/HEEA064680.md): Seal · leaking · Oct 5, 1999 · N407MM · Bell 407 · Main Rotor Gearbox > SEAL LEAKING. PART WAS SCRAPPED ON SITE. - [SDR HEEA064652](https://openairdocs.org/sdr/HEEA064652.md): Cover · worn · Oct 4, 1999 · N407MM · Bell 407 · Emergency Flotation Section > FLOAT COVER WORN. - [SDR HEEA064496](https://openairdocs.org/sdr/HEEA064496.md): Cover Assy · torn · Sep 30, 1999 · N407MM · Bell 407 · Emergency Flotation Section > FLAPS TORN ON FLOAT COVER. REFERENCE: DMR NR 686409. - [SDR HEEA064486](https://openairdocs.org/sdr/HEEA064486.md): Exhaust Stack · cracked · Sep 30, 1999 · N407MM · Bell 407 · Engine Collector/Tailpipe/Nozzle > EXHAUST STACK CRACKED, CENTER AFT SIDE. REFERENCE: DMR NR 686469. - [SDR HEEA064407](https://openairdocs.org/sdr/HEEA064407.md): Indicator · failed · Sep 22, 1999 · N407MM · Bell 407 · Main Rotor Gearbox > TEMPERATURE WENT TO ZERO DEGREES DURING RUN. - [SDR HEEA064301](https://openairdocs.org/sdr/HEEA064301.md): Link · worn · Sep 7, 1999 · N407MM · Bell 407 · Tail Rotor Control System > LINK HAD WORN BEARINGS. REFERENCE: DMR NR 686281. - [SDR HEEA064299](https://openairdocs.org/sdr/HEEA064299.md): Bearing · worn · Sep 7, 1999 · N407MM · Bell 407 · Tail Rotor Head > WORN BEARINGS. REFERENCE: DMR NR 686206. - [SDR HEEA063756](https://openairdocs.org/sdr/HEEA063756.md): Blade · blistered · Aug 27, 1999 · N407MM · Bell 407 · Main Rotor Blades > SMALL VOID ON UNDERSIDE OF BLADE NEAR TIP. BLISTER NOTED ON DAILY INSPECTION. REFERENCE: DMR NR 686382. - [SDR HEEA062989](https://openairdocs.org/sdr/HEEA062989.md): Starter · damaged · Jul 23, 1999 · N407MM · Bell 407 · Starter-Generator > STARTER/GENERATOR HAS WORN SPLINES. - [SDR HEEA062887](https://openairdocs.org/sdr/HEEA062887.md): Hmu · malfunctioned · Jul 13, 1999 · N407MM · Bell 407 · Fuel Controlling System > RESTART FAULT AND FADEC DEGRADE LIGHTS ILLUMINATED ON SHUTDOWN. REPLACED WITH SERVICEABLE PART. - [SDR HEEA062842](https://openairdocs.org/sdr/HEEA062842.md): Harness · failed · Jul 12, 1999 · N407MM · Bell 407 · Fuel Controlling System > HARNESS CAUSING FADEC DEGRADE AND RESTART FAULT LIGHTS. REPLACED WITH SERVICEABLE ASSY. - [SDR HEEA062834](https://openairdocs.org/sdr/HEEA062834.md): Sensor · failed · Jul 12, 1999 · N407MM · Bell 407 · Fuel Control/Turbine Engines > N2 SENSOR CAUSING FADEC DEGRADE LIGHT. REPLACED WITH SERVICEABLE ASSY. - [SDR HEEA062504](https://openairdocs.org/sdr/HEEA062504.md): Indicator · malfunctioned · May 26, 1999 · N407MM · Bell 407 · Main Rotor Gearbox > LCD DISPLAY IS VERY DIM ON INDICATOR. - [SDR HEEA062486](https://openairdocs.org/sdr/HEEA062486.md): Indicator · intermittent · May 26, 1999 · N407MM · Bell 407 · Engine Oil Indicating System > OIL TEMPERATURE INTERMITTENT. - [SDR HEEA062465](https://openairdocs.org/sdr/HEEA062465.md): Housing · cracked · May 25, 1999 · N407MM · Bell 407 · Tail Rotor Drive Shaft > BLOWER HOUSING HAS A CRACK AT LEFT OUTLET CORNER AND RIVETS LOOSE. - [SDR HEEA062460](https://openairdocs.org/sdr/HEEA062460.md): Duct · cracked · May 24, 1999 · N407MM · Bell 407 · Engine Oil Cooler > DUCT CRACKED. - [SDR HEEA062452](https://openairdocs.org/sdr/HEEA062452.md): Universal · worn · May 24, 1999 · N407MM · Bell 407 · Main Rotor Control > UNIVERSAL HAS WORN BEARING. - [SDR HEEA062432](https://openairdocs.org/sdr/HEEA062432.md): Bearing · worn · May 24, 1999 · N407MM · Bell 407 · Main Rotor Drive System > ROD END BEARING WORN. - [SDR HEEA061767](https://openairdocs.org/sdr/HEEA061767.md): Harness · failed · Apr 8, 1999 · N407MM · Bell 407 · Fuel Controlling System > FADEC DEGRADE AND RESTART FAULT LIGHTS ON. REPLACED WITH SERVICEABLE HARNESS. - [SDR HEEA061317](https://openairdocs.org/sdr/HEEA061317.md): Skin · cracked · Mar 23, 1999 · N407MM · Bell 407 · Rotorcraft Tail Boom > SKIN ON TAILBOOM CRACKED ON LT SIDE IN AREA OF HORIZONTAL STABILIZER. - [SDR HEEA061160](https://openairdocs.org/sdr/HEEA061160.md): Bearings · worn · Mar 16, 1999 · N407MM · Bell 407 · Main Rotor Drive System > WORN BEARINGS, DELAMINATION IN MAIN ROTOR DRIVE. - [SDR HEEA061156](https://openairdocs.org/sdr/HEEA061156.md): Pickup · failed · Mar 16, 1999 · N407MM · Bell 407 · Engine RPM Indicating System > N1 INDICATOR WENT TO ZERO. - [SDR HEEA061139](https://openairdocs.org/sdr/HEEA061139.md): Universal · worn · Mar 15, 1999 · N407MM · Bell 407 · Main Rotor Drive System > UNIVERSAL HAS WORN BEARINGS. - [SDR HEEA061138](https://openairdocs.org/sdr/HEEA061138.md): Universal · worn · Mar 15, 1999 · N407MM · Bell 407 · Main Rotor Drive System > UNIVERSAL HAS WORN BEARINGS. - [SDR HEEA060971](https://openairdocs.org/sdr/HEEA060971.md): Bearing · worn · Mar 5, 1999 · N407MM · Bell 407 · Tail Rotor Head > TAIL ROTOR BLADE AND HUB HAVE WORN BEARINGS. Next page: https://openairdocs.org/deregistered/N407MM-2001-06-28/reports.md?page=2 ## The whole list in SQL Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS: ```sql SELECT sdr_id, difficulty_date, n_number, aircraft_make, aircraft_model, part_name, part_condition, jasc_code, discrepancy FROM 'https://openairdocs.org/data/latest/faa_service_difficulty_report.parquet' WHERE n_number = 'N407MM' AND deregistration_id = 'N407MM-2001-06-28' ORDER BY difficulty_date DESC ``` This list as a web page: https://openairdocs.org/deregistered/N407MM-2001-06-28/reports --- 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.