JASC 6321

Service difficulty reports · 275

Reports filed under 6321 · Main Rotor Brake, newest first.

Query with SQL
duckdb -csv -c "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 jasc_code = '6321'
  ORDER BY difficulty_date DESC"

Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.

SDR HEEA0016786Pin · wornMAIN ROTOR PIN WORN.Nov 11, 1998 · N407PH · Bell 407SDR CA981123021Brake · malfunctioned(CAN) PILOT REPORTED MAGNETIC BRAKE INOPERATIVE IN THE FORE AND AFT AXIS.Nov 6, 1998 · Bell 212SDR HEEA0016598Brake Assy · wornBRAKE ASSEMBLY HAS WORN LININGS.Oct 28, 1998 · N3893S · Bell 412SDR HEEA0016597Brake Assy · malfunctionedBRAKE ASSEMBLY HAS BROKEN SWITCH ASSY.Oct 28, 1998 · N141PH · Bell 412SDR HEEA0016596Brake Assy · wornBRAKE ASSEMBLY HAS WORN LININGS.Oct 28, 1998 · N3893L · Bell 412SDR HEEA0016595Brake Assy · leakingBRAKE ASSEMBLY LEAKING AND LININGS WORN.Oct 28, 1998 · N3893N · Bell 412SDR HEEA0016594Brake Assy · malfucntionedBRAKE ASSEMBLY SWITCHES INOPERATIVE.Oct 28, 1998 · N2149S · Bell 412SDR HEEA0016593Brake Assy · wornBRAKE ASSEMBLY HAS WORN LININGS.Oct 28, 1998 · N141PH · Bell 412SDR HEEA0016212Puck · unbondedROTOR BRAKE PUCK UNBONDED FROM AFT PAD ASSEMBLY.Oct 21, 1998 · N447PH · Bell 407SDR HEEA0016094Brake Assy · wornBRAKE ASSEMBLY WORN.Oct 5, 1998 · N4000L · Snias AS350B2SDR 99ZZZX1334Support · wornWORN BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.Oct 3, 1998 · N97LG · Snias AS350B2SDR HEEA0016070Module · malfunctionedMODULE CYCLES CONTINUOUSLY WHEN ON. UNIT INSPECTED BY ACCESSORY OVERHAUL SHOP. REPLACED O-RINGS AND BEARINGS DUE TO CONTAMINATION.Sep 25, 1998 · N3122H · Skrsky S76ASDR HEEA0016069Rotor Brake · inoperativeROTOR BRAKE INOPERATIVE. REPLACED WITH SERVICEABLE UNIT.Sep 25, 1998 · N3122H · Skrsky S76ASDR HEEA0016068Rotor Brake · malfucntionedWITH ROTOR BRAKE ON AND ROTOR SPOOLING DOWN (STILL TURNING)...WINDSHIELD HOT BUS TIE OPEN TFMR RECT AND DOOR OPEN WARNING LIGHTS CYCLE ON AND OFF ON MASTER CAUTION PANEL UNTIL ROTOR COMES TO A COMPLETE STOP. ROTOR BRAKE FUNCTION NORMAL. UNIT CURRENTLY IN ACCSep 25, 1998 · N5435V · Skrsky S76ASDR HEEA0016067Rotor Brake · malfunctionedROTOR BRAKE MOTOR RUNS CONTINUOUSLY AND NEVER BUILDS UP PRESSURE (SUSPECT VALVE STUCK CLOSED). UNIT INSPECTED BY ACCESSORY OVERHAUL SHOP. THERE WAS NO PROBLEM FOUND WITH UNIT.Sep 25, 1998 · N5435V · Skrsky S76ASDR HEEA0015679Pin · wornDRIVE PIN WORN.Aug 19, 1998 · N467PH · Bell 407SDR 98ZZZX3531Pad · mismanufacturedMAIN ROTOR BRAKE PAD ASSY REJECTED NEW OUT-OF-BOX. CRACKED AT MOUNTING PLATE. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.Jul 20, 1998 · N527RM · Bolkms BK117A4SDR HEEA0015072Brake · wornMAIN ROTOR BRAKE WEAK AND WORN.Jun 30, 1998 · N405PH · Bell 407SDR HEEA0015022Rotor Brake · leakingMAIN ROTOR BRAKE IS OIL SOAKED AND LEAKING.Jun 24, 1998 · N427PH · Bell 407SDR HEEA0015021Rotor Brake · missing partsMAIN ROTOR BRAKE PADS MISSING.Jun 24, 1998 · N427PH · Bell 407SDR HEEA0015018Pin · wornMAIN ROTOR BRAKE PIN WORN.Jun 24, 1998 · N447PH · Bell 407SDR HEEA0015017Pin · damagedMAIN ROTOR BRAKE BOLT HOLES ELONGATED.Jun 24, 1998 · N407PH · Bell 407SDR 98ZZZX2884Caliper · leakingROTOR BRAKE LEAKING. NO TECHNICAL DATA TO REPAIR.Jun 10, 1998 · N407PR · Bell 407SDR HEEA0014418Rotor Brake · wornROTOR BRAKE WEAK AND WORN.Jun 1, 1998 · N405PH · Bell 407SDR 98ZZZX3732Caliper · stuckAFT PISTON WILL NOT RETRACT. UNIT INSTALLED WHILE AC WAS IN MESA FOR WORK. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.May 28, 1998 · N901CF · Doug MD900SDR HEEA0014287Cylinder Assy · weakSINCE NEW, ROTOR BRAKE HAS ALWAYS BEEN WEAK AND IS DETERIORATING.May 22, 1998 · N405PH · Bell 407SDR HEEA0014283Rotor Brake · unbondedL/H ROTOR BRAKE CALIPER PAD ASSY UNBONDED.May 22, 1998 · N57416 · Bell 407SDR CHI3063Lining · brokenDURING PILOT'S PRE-FLIGHT, HE FOUND WHAT APPEARED TO BE ROTOR BRAKE LINING BELOW THE ENGINE DRIVE SHAFT AFT OF THE FIREWALL. MAINTENANCE REMOVED BOTH BRAKE CALIPERS AND FOUND LT FWD AND RT AFT LININGS MISSING. LINING APPEARS TO HAVE DEBONDED AND FELL INTO THMay 21, 1998 · N808TV · Bell 407SDR HEEA0014240Cylinder Assy · failedCYLINDER ASSY HAS NO OUTPUT PRESSURE. CYCLES FLUID IN RESERVOIR.May 19, 1998 · N405PH · Bell 407SDR CA980519003Bolt · worn(CAN) STEP WORN INTO BOLT FROM ROTOR BRAKE PADS AT .700 INCH AND 1.760 INCHES FROM BOLT HEAD. WEAR APPEARS TO COME FROM CHATTERING OF THE PADS IN THE RETRACTED POSITION. DUE TO ACCELERATED WEAR, BOLTS WILL BE REPLACED ON A 100 HOUR BASIS.May 3, 1998 · Bell 407SDR HEEA0013977Brake · wornROTOR BRAKE OIL SOAKED AND WORN.Apr 20, 1998 · N40466 · Snias AS350B2SDR HEEA0013144Disc · warped3000 HOUR OVERHAUL DUE. BRAKE DISC WARPED. SCRAPPED PART. REPLACED WITH SERVICEABLE PART.Mar 3, 1998 · N967MB · Bolkms BO105SSDR 98ZZZX1793Pad · wornROTOR BRAKE PAD WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.Feb 11, 1998 · N17SJ · Bolkms BK117B1SDR HEEA0012890Cylinder · failedCYL ASSY WILL NOT HOLD PRESSURE, BLEEDS DOWN.Feb 9, 1998 · N427PH · Bell 407SDR HEEA0012877Rotor Brake · defectiveROTOR BRAKE HAS ONE PUCK MISSING.Feb 9, 1998 · N1167G · Bell 407SDR 98ZZZX735Flange · mismanufacturedRECEIVED A REPLACEMENT PART FROM BELL HELICOPTER FOR THE ROTOR BRAKE QUILL. THE REPLACEMENT FLANGE, PN 209-040-177-101, DID NOT HAVE THE SAME APPEARANCE IN THE SEAL CONTACT AREA AS THE REMOVED, IDENTICAL PART NUMBER ITEM. THE 'NEW' FLANGE APPEARS TO HAVE BEEJan 30, 1998 · N411DE · Bell 412SDR HEEA0012693Caliper · strippedROTOR BRAKE CALIPER THREADS IN INLET PLATE STRIPPED.Jan 26, 1998 · N967MB · Bolkms BO105SSDR HEEA0012613Rotor Brake · failedROTOR BRAKE PADS MISSING.Jan 22, 1998 · N57416 · Bell 407SDR HEEA0012472Panel · malfunctionPILOT SIDE ROTOR BRAKE, LIGHT STAYS ON DIM.Jan 6, 1998 · N107X · Bell 412SDR CA971231006Bolt · worn(CAN) AFTER BELL ADVISORY, ROTOR BRAKE ASSY CHECKED AND ALL 4 CALIPER TO ROTOR BRAKE PAD THRU BOLTS WERE FOUND WORN 1/3 TO 1/2 WAY THROUGH. WILL CHECK EVERY 200 HOURS.Dec 11, 1997 · Bell 407SDR HEEA0012254Rotor Brake · defectiveROTOR BRAKE PUCKS MISSING.Dec 5, 1997 · N437PH · Bell 407SDR HEEA0012163Puck · unbondedROTOR BRAKE PUCK CAME UNBONDED.Nov 28, 1997 · N457PH · Bell 407SDR HEEA0012032Module · inoperativeROTOR BRAKE LIGHT INOPERATIVE.Nov 18, 1997 · N31219 · Skrsky S76ASDR HEEA0011751Rotor Brake · failedROTOR BRAKE PUCK MISSING.Oct 31, 1997 · N407MM · Bell 407SDR HEEA0011741Rotor Brake · failedROTOR BRAKE PUCK SEPARATED.Oct 31, 1997 · N427PH · Bell 407SDR HEEA0011039Brake · bolts wornROTOR BRAKE TWO EACH BOLT SHANKS WORN, P/N D0152-1, CAUSING ROTOR BRAKE PAD NOT T RELEASE FROM ROTOR BRAKE DISK. SUSPECT THAT HIGH HEAT FROM DISK CAUSED PAD TO FAIL. REMOVED TWO EACH BOLTS P/N D0152-1 AND 2 EACH PADS P/N D0138-1 AND REPLACED WITH SERVICEABLESep 12, 1997 · N447PH · Bell 407SDR CA971231001Pad · debonded(CAN) ROTOR BRAKE PAD FOUND COMPLETELY DEBONDED. PAD WAS FROM THE AFT STARBOARD CALIPER ASSY. NEW STYLE PAD INSTALLED WHICH SHOULD PREVENT DEBONDING. PART TC: 758.Aug 11, 1997 · Bell 407SDR HEEA0010477Brake Assy · wornROTOR BRAKE ASSY WORN OUT.Jul 11, 1997 · N4000L · Snias AS350B2SDR HEEA0010153Brake Assy · inoperativeROTOR BRAKE INOPERATIVE.Jun 16, 1997 · N230UN · Bell 230SDR HEEA0010124Rotor Brake · wornROTOR BRAKE WORN.Jun 13, 1997 · N6100R · Snias AS350B2
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