# Service difficulty reports: N697AL, cancelled Nov 12, 2020 A list on [N697AL, cancelled Nov 12, 2020](https://openairdocs.org/deregistered/N697AL-2020-11-12.md). Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model. Newest first. - [SDR ALGA123010AFS1227](https://openairdocs.org/sdr/ALGA123010AFS1227.md): Pinion Gear · cracked · Dec 30, 2010 · N697AL · Bell 407 · Main Rotor Gearbox > NUMEROUS CRACKS ON INNER SURFACE WHERE ROLLER SET RIDES. - [SDR ALGA082710697AL](https://openairdocs.org/sdr/ALGA082710697AL.md): Drive Shaft · worn · Aug 27, 2010 · N697AL · Bell 407 · Hydraulic Pump (Electric/Engine), Main > HYD SYS LIGHT ILLUMINATED IN FLIGHT. MX FOUND HYD PUMP DRIVESHAFT SPLINES AND TRANSMISSION OIL PUMP OUTPUT SHAFT SPLINES WORN AWAY. R & R HYD PUMP DRIVESHAFT AND TRANSMISSION OIL PUMP. - [SDR ALGA9240953374](https://openairdocs.org/sdr/ALGA9240953374.md): Crosstube · corroded · Sep 24, 2009 · N697AL · Bell 407 · Main Landing Gear > AFT CROSS TUBE SUPPORT PN D2894-1 HAD CORROSION UNDERNEATH. CLAMP ASSY MX21920-22 SLID AWAY FROM CHAFING SHIELD ON INBD END. - [SDR ALG2005F00067](https://openairdocs.org/sdr/ALG2005F00067.md): Engine · fod · Aug 13, 2005 · N697AL · Bell 407 · Turbine Engine Compressor Section > ON TAKE OFF, HIGH PITCH WHINE WAS NOTED. NOTIFIED MAINTENANCE. INSPECTED ENGINE AND FOUND COMPRESSOR FOD DAMAGE. REMOVED AND REPLACED ENGINE ASSY. GROUND RUN, VIBRATION CHECK, AND LEAK CHECK ALL GOOD. WORK IAW MM. (K) - [SDR ALGA096800](https://openairdocs.org/sdr/ALGA096800.md): Bearing · binding · Jul 20, 2004 · N697AL · Bell 407 · Main Rotor Blades > BINDING, AXIAL WEAR BEYOND MAX., AND ROUGH. REPLACED WITH NEW PART IN FIELD. - [SDR ALGA094222](https://openairdocs.org/sdr/ALGA094222.md): Universal · worn · Apr 21, 2004 · N697AL · Bell 407 · Main Rotor Head > FOUND EXCESSIVE AXIAL PLAY. REMOVED AND REPLACED WITH NEW PART IN FIELD. - [SDR ALG2004F00007](https://openairdocs.org/sdr/ALG2004F00007.md): Wire · damaged · Feb 16, 2004 · N697AL · Bell 407 · Instrument System Wiring > WHILE LIFTING OFF FOR TAKE OFF, THE TRANSMISSION TEMPERATURE GAUGE FLUCTUATED FROM 0 TO MAX AND REMAINED AT MAX AFTER THROTTLE REDUCED TO IDLE. MAINTENANCE FOUND SHAFTED WIRE NUMBER E629A22 INSIDE CONNECTOR AT TRANSMISSION TEMPERATURE BULB. REPAIRED WIRE AN - [SDR ALGA084011](https://openairdocs.org/sdr/ALGA084011.md): Bolt · scored · Jan 20, 2003 · N697AL · Bell 407 · Main Rotor Gearbox > ON DISSASSEMBLY FOUND 30 BOLTS ON GEAR SHAFT LOOSE, MATING SURFACE FRETTED BEYOUND LIMITS IN CR&O MANUAL. THIS WAS THE FIRST TIME UNIT WAS DISSASSEMBLED SINCE NEW. REMOVED AND REPLACED BOLTS. - [SDR ALGA084010](https://openairdocs.org/sdr/ALGA084010.md): Gear Shaft · scored · Jan 20, 2003 · N697AL · Bell 407 · Main Rotor Gearbox > ON DISSASSEMBLY FOUND 30 BOLTS ON GEAR SHAFT LOOSE, MATING SURFACE FRETTED BEYOUND LIMITS IN CR&O MANUAL. THIS WAS THE FIRST TIME UNIT WAS DISSASSEMBLED SINCE NEW. REMOVED AND REPLACED GEAR SHAFT. - [SDR ALGA084009](https://openairdocs.org/sdr/ALGA084009.md): Bevel Gear · scored · Jan 20, 2003 · N697AL · Bell 407 · Main Rotor Gearbox > ON DISSASSEMBLY FOUND 30 BOLTS ON GEAR SHAFT WERE LOOSE, MATING SURFACE FRETTED BEYOUND LIMITS IN CR&O MANUAL. THIS WAS THE FIRST TIME UNIT WAS DISSASSEMBLED SINCE NEW. REMOVED AND REPLACED BEVEL GEAR. - [SDR ALGA082886](https://openairdocs.org/sdr/ALGA082886.md): Shaft · worn · Jan 7, 2003 · N697AL · Bell 407 · Engine/Transmission Coupling > DURING 2500 HR OVERHAUL OF FREEWHEEL UNIT. FOUND INPUT DRIVE SPLINES WORN BELOW LIMITS. - [SDR ALG2002F00016](https://openairdocs.org/sdr/ALG2002F00016.md): Bearing · separated · Feb 3, 2002 · N697AL · Bell 407 · Main Rotor Head > DURING INSPECTION AT FIELD BASE. ELASTOMER SEPARATION. - [SDR 2001F00614](https://openairdocs.org/sdr/2001F00614.md): Disc Pack · cracked · Aug 20, 2001 · N697AL · Bell 407 · Tail Rotor Drive Shaft > DAILY INSPECTION OF TAILROTOR DRIVESHAFT BEARINGS FOR OVERHEATING. NR 4 TAILROTOR DISC, (ONE) FORWARD IS CRACKED, PROBABLE CAUSE IS EXCESSIVE RIGIDITY IN THE BEARING MOUNT SYSTEM. ALLOW THE TAILROTOR DRIVESHAFT TO FLOAT SO DISC PACKS DO NOT FLEX AS MUCH OR A - [SDR 2001F00608](https://openairdocs.org/sdr/2001F00608.md): Disc Pack · cracked · Jan 22, 2001 · N697AL · Bell 407 · Tail Rotor Drive Shaft > DURING 25 HOUR AD INSPECTION, THE COUPLING IS CRACKED, PROBABLE CAUSE IS EXCESSIVE RIGIDITY IN BEARING MOUNT SYSTEM. ALLOW TAILROTOR DRIVESHAFT TO FLOAT SO DISC PACKS DO NOT FLEX AS MUCH OR AS OFTEN. (M) - [SDR 2001F00607](https://openairdocs.org/sdr/2001F00607.md): Disc Pack · cracked · Dec 19, 2000 · N697AL · Bell 407 · Tail Rotor Drive Shaft > DURING 25 HOUR AD INSPECTION, THE COUPLING IS CRACKED, PROBABLE CAUSE IS EXCESSIVE RIGIDITY IN BEARING MOUNT SYSTEM. ALLOW TAILROTOR DRIVESHAFT TO FLOAT SO DISC PACKS DO NOT FLEX AS MUCH OR AS OFTEN. (M) - [SDR 20001026SH002](https://openairdocs.org/sdr/20001026SH002.md): Disc Pack · cracked · Aug 24, 2000 · N697AL · Bell 407 · Tail Rotor Drive Shaft > DURING 25-HOUR AD INSPECTION, TIME SINCE LAST INSPECTION IS 16.6 HOURS. FORWARD SEGMENT OF THE DISC PACK IS CRACKED ACROSS THE SPAN. (X) ## 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 = 'N697AL' AND deregistration_id = 'N697AL-2020-11-12' ORDER BY difficulty_date DESC ``` This list as a web page: https://openairdocs.org/deregistered/N697AL-2020-11-12/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.