# Service difficulty reports: JASC 6210

A list on [JASC 6210](https://openairdocs.org/jasc/6210.md).

Reports filed under 6210 · Main Rotor Blades, newest first.

Page 1 of 32 · 1,561 reports

- [SDR QR9R2026092300001](https://openairdocs.org/sdr/QR9R2026092300001.md): Blade · failed · Sep 23, 2026 · Bolkms BK117C2
  > M/R BLADE WAS RECEIVED FROM SUPPLY AND FAILED RESISTANCE CHECK.
- [SDR 8HBR20260830087](https://openairdocs.org/sdr/8HBR20260830087.md): Bearing · brinelled · Aug 17, 2026 · N8072X · Robsin R22BETA
  > SPINDLE BEARINGS FOUND BRINELLED AFTER REPORTS OF VIBRATIONS IN CONTROLS
- [SDR 8HBR20260628085](https://openairdocs.org/sdr/8HBR20260628085.md): Bearing · brinelled · Jun 17, 2026 · N922DD · Robsin R22BETA
  > PILOTS REPORTED VIBRATIONS IN THE CYCLIC CONTROL. INSPECTION OF THE MAIN ROTOR BLADE SPINDLE BEARINGS SHOWED BRINELLED BEARINGS ON BOTH MAIN ROTOR BLADE SPINDLES.
- [SDR 8HBR20260614084](https://openairdocs.org/sdr/8HBR20260614084.md): Bearing · brinelled · Jun 7, 2026 · N924SH · Robsin R22BETA
  > PILOTS REPORTED VIBRATIONS IN THE CYCLIC CONTROLS, UPON INSPECTION IT WAS FOUND THAT ONE SET OF SPINDLE BEARINGS ON ONE MAIN ROTOR BLADE WERE FOUND TO BE BRINELLED. THE BEARINGS ON THIS SPECIFIC SPINDLE HAVE BEEN REPLACED SEVERAL TIMES BEFORE.
- [SDR 2A6R2026060475601](https://openairdocs.org/sdr/2A6R2026060475601.md): Liner · cracked · Jun 3, 2026 · N831ME · Urocop EC135T2
  > POST REMOVING DAMAGED TEFLON LINER ON BLADE. DISCOVERED CRACK ON WEDGE ON WEDGE OF UPPER TRAILING BUSH HOLE TO OUTER ROVING LOOP.
- [SDR PN1R202605120001](https://openairdocs.org/sdr/PN1R202605120001.md): Bolt · unserviceable · May 12, 2026 · N568AE · Aerosp AS355*
  > ON TWO SEPARATE OCCASIONS, ON THE AS350B3, 6EA MAIN ROTOR STARFLEX ATTACHMENT BOLTS WERE FOUND TO BE UNSERVICEABLE. NOTE: THE STARFLEX IS ATTACHED TO THE MAIN ROTOR SHAFT USING 12EA BOLTS AND 12EA BARREL NUTS.
- [SDR 8HBR20260426082](https://openairdocs.org/sdr/8HBR20260426082.md): Bearing · brinelled · Apr 22, 2026 · N7148A · Robsin R22BETA
  > PILOTS REPORTED VIBRATIONS IN THE CYCLIC, UPON INSPECTION IT WAS FOUND THAT ONE OF THE MAIN ROTOR BLADES HAD BRINELLED SPINDLE BEARINGS
- [SDR 2026FA0000248](https://openairdocs.org/sdr/2026FA0000248.md): Blade · dented · Mar 31, 2026 · N842JH · Hughes 369E
  > AT LANDING PILOT REPORTED MAIN BLADE CONTACT WITH TREE BRANCHES WITH NO CHANGE IN RPM. MECHANIC DETERMINED PER MDHI CSP HMI-2 THAT THERE WAS NO SUDDEN STOPAGE DUE TO NO CHANGE IN ROTOR RPM. MECHANIC INSPECTED AIRCRAFT MAIN ROTOR BLADES FOR DAMAGE AND FOUND SMA
- [SDR PN1R202603270001](https://openairdocs.org/sdr/PN1R202603270001.md): Blade · cracked · Mar 27, 2026 · N3KA · Urocop BK117C1EURO
  > DURING INSPECTION, FOUND CRACK IN COPPER SURFACE PROTECTION ON TOP SIDE OF RED MAIN ROTOR BLADE FLEX CONTROL UNIT (FCU). A TECHNICAL REQUEST WAS OPENED WITH AIRBUS ENGINEERING, AND IT WAS DETERMINED THAT THE FCU NEEDED TO BE SHIPPED TO THEIR MAIN ROTOR BLADE S
- [SDR QR9R2026022300001](https://openairdocs.org/sdr/QR9R2026022300001.md): Bolt · cracked · Feb 23, 2026 · Bolkms BK117C2
  > NDI INSPECTION REVEALED HEX BOLT WAS FOUND TO BE CRACKED.
- [SDR QR9R2026020600002](https://openairdocs.org/sdr/QR9R2026020600002.md): Bolt · cracked · Feb 6, 2026 · Bolkms BK117C2
  > HEX BOLT WAS FOUND TO BE CRACKED DURING NDI INSPECTION.
- [SDR QR9R2026020600001](https://openairdocs.org/sdr/QR9R2026020600001.md): Bolt · cracked · Feb 6, 2026 · Bolkms BK117C2
  > NDI INSPECTION REVEALED HEX BOLT WAS CRACKED.
- [SDR QR9R2026020200001](https://openairdocs.org/sdr/QR9R2026020200001.md): Bolt · cracked · Feb 2, 2026 · Bolkms BK117C2
  > NDI INSPECTION REVEALED HEX BOLT WAS CRACKED.
- [SDR QR9R2026012800001](https://openairdocs.org/sdr/QR9R2026012800001.md): Bolt · cracked · Jan 28, 2026 · Bolkms BK117C2
  > NDI INSPECTION REVEALED HEX BOLT WAS CRACKED ON THREADS.
- [SDR QMLA2025111620114](https://openairdocs.org/sdr/QMLA2025111620114.md): Blade · delaminated · Nov 15, 2025 · N902CH · Doug MD900
  > TRIM TAB SECTION ON MRB NR 4 WAS DISCOVERED TO BE DELAMINATED ON POST FLIGHT WALK AROUND. REMOVED AND REPLACED MRB.
- [SDR 2025FA0000717](https://openairdocs.org/sdr/2025FA0000717.md): Bearing · brinelled · Oct 15, 2025 · N147SH · Robsin R22BETAII
  > FOUND BOTH SPINDLE BEARINGS P/N A159-3, TSN: 1406.9 BRINELLED. NO OVER SPEEDS
- [SDR 2025FA0000716](https://openairdocs.org/sdr/2025FA0000716.md): Bearing · brinelled · Oct 15, 2025 · N115SH · Robsin R22BETAII
  > FOUND BOTH SPINDLE BEARINGS P/N A159-3, TSN: 1449.7 BRINELLED. NO OVER SPEEDS
- [SDR 2025FA0000715](https://openairdocs.org/sdr/2025FA0000715.md): Bearing · brinelled · Oct 15, 2025 · N184SH · Robsin R22BETAII
  > FOUND BOTH SPINDLE BEARINGS P/N A159-3, TSN: 1064.8, BRINELLED. NO OVER SPEEDS
- [SDR 2025FA0000714](https://openairdocs.org/sdr/2025FA0000714.md): Bearing · brinelled · Oct 15, 2025 · N184SH · Robsin R22BETAII
  > FOUND BOTH SPINDLE BEARING SETS P/NA159-3, TSN: 1113.0, BRINELLED. NO OVER SPEEDS.
- [SDR 2025FA0000706](https://openairdocs.org/sdr/2025FA0000706.md): Bearing · brinelled · Oct 10, 2025 · N183LE · Robsin R22BETAII
  > FOUND BOTH SPINDLE BEARING SETS P/N A159-3, TSN: 2122.6, BRINELLED, NO OVER SPEEDS
- [SDR 2025FA0000705](https://openairdocs.org/sdr/2025FA0000705.md): Bearing · brinelled · Sep 10, 2025 · N3040K · Robsin R22BETAII
  > FOUND BOTH SPINDLE BEARING SETS P/N A159-3, TSN: 221.3, BRINELLED
- [SDR QR9R2025080400001](https://openairdocs.org/sdr/QR9R2025080400001.md): Blade · cracked · Aug 4, 2025 · Bolkms BK117C2
  > BLUE MAIN ROTOR BLADE HAS CRACK ON TOP SIDE OF BLADE NEAR ROOT OUTSIDE OF PU FILM NEAR VIBRATION ABSORBER. RE-VERIFIED BY USING BOUNCE TEST WITH ALCOHOL. REMOVED AND REPLACED MAIN ROTOR BLADE IAW AMM 62-10-00, 4-1.
- [SDR 8HBR202500721072](https://openairdocs.org/sdr/8HBR202500721072.md): Bearing · brinelled · Jul 20, 2025 · N7155W · Robsin R22BETA
  > VISUAL INSPECTION OF MAIN ROTOR BLADE SPINDLE ASSEMBLIES FOUND SPINDLE BEARINGS OF 1 OF THE 2 BLADES TO BE BRINELLED, THE OPPOSITE BLADE HAD NO INDICATION OF BRINELLING. SPINDLE BEARINGS AND SPACERS WERE PREVIOUSLY REPLACED 676.3 HRS AGO WITH NEW BEARINGS AND
- [SDR 8HBR20250630070](https://openairdocs.org/sdr/8HBR20250630070.md): Bearing · brinelled · Jun 29, 2025 · N603HH · Robsin R22BETA
  > VISUAL INSPECTION OF MAIN ROTOR BLADE SPINDLE ASSEMBLIES FOUND SPINDLE BEARINGS TO BE BRINNELED. SPINDLE BEARINGS AND SPACERS WERE PREVIOUSLY REPLACED 117.4 HOURS AGO (18131.4 ACTT) WITH NEW BEARINGS AND NEW SERIALIZED SPACERS. RED BLADE SN:6852, SPINDLE SN:26
- [SDR EVCA20250530001](https://openairdocs.org/sdr/EVCA20250530001.md): Blade · damaged · May 28, 2025 · N190AE · Bell 407
  > CRACK FOUND 3/8" FROM THE AFT BLADE BOLE AREA IN NON-REPAIRABLE AREA OF MAIN ROTOR BLADE.
- [SDR 2025FA0000350](https://openairdocs.org/sdr/2025FA0000350.md): Bearing · brinelled · May 11, 2025 · Robsin R22
  > THE SPINDLE BEARINGS WERE REPLACED ON BOTH BLADES ABOUT 200 HOURS AGO. AT THIS 100-HOUR INSPECTION, A FLIGHT TEST FOUND A HIGH VIBRATION, MEASURING ALMOST 5 IPS. WE ATTEMPTED TO BALANCE AND WERE UNABLE TO GET BELOW A.3. WE REMOVED THE BLADES AND FOUND BOTH SP
- [SDR QR9R2025050200001](https://openairdocs.org/sdr/QR9R2025050200001.md): Blade · cracked · May 2, 2025 · Bolkms BK117C2
  > GREEN M/R BLADE HAS CRACK AT BLADE ROOT NEAR THE P/U FILM. REMOVED AND REPLACED M/R BLADE IAW AMM 62-10-00, 4-1.
- [SDR QR9R2025040700001](https://openairdocs.org/sdr/QR9R2025040700001.md): Blade · cracked · Apr 7, 2025 · Bolkms BK117C2
  > DURING INSPECTION OF M/R BLADE, MAINTENANCE DETECTED GREEN MAIN ROTOR BLADE HAS HORIZONTAL CRACK ON TRAILING EDGE FROM GRIP OUT TO PU TAPE. REMOVED AND REPLACED M/R BLADE IAW AMM 62-10-00,4-1.
- [SDR QR9R2025032500002](https://openairdocs.org/sdr/QR9R2025032500002.md): Blade · cracked · Mar 25, 2025 · Bolkms BK117C2
  > YELLOW MAIN ROTOR BLADE HAS SPANWISE CRACK EXTENDING UNDER BLADE FITTING. REMOVED AND REPLACED M/R BLADE ASSY IAW AMM 62-10-00, 4-1.
- [SDR QR9R2025032500001](https://openairdocs.org/sdr/QR9R2025032500001.md): Blade · cracked · Mar 25, 2025 · Bolkms BK117C2
  > RED MAIN ROTOR BLADE CRACKED AT UPPER SURFACE BETWEEN BLADE FITTING AND BLADE CUFF. VERIFIED CRACKED AFTER SANDING IAW AMM 62-10-00, 6-1. REMOVED AND REPLACED MAIN ROTOR BLADE IAW AMM 62-10-00, 4-1.
- [SDR QMLA2025021720018](https://openairdocs.org/sdr/QMLA2025021720018.md): Blade · damaged · Feb 17, 2025 · N405TJ · Urocop EC135T2
  > OBJECT STRUCK ON FINAL APPROACH TO JEFFERSON UNIVERSITY HOSPITAL. UPON SHUTDOWN, DAMAGE WAS NOTED TO THE TOP OF THE FUSELAGE AND WITNESS MARKS AND DAMAGE TO 3 OF THE ROTOR BLADES.
- [SDR 2025FA0000704](https://openairdocs.org/sdr/2025FA0000704.md): Bearing · brinelled · Feb 5, 2025 · N3040K · Robsin R22BETAII
  > FOUND BOTH SPINDLE BEARING SETS P/N A159-3. TSN: 120.1, BRINELLED
- [SDR 2025FA0000703](https://openairdocs.org/sdr/2025FA0000703.md): Bearing · brinelled · Feb 5, 2025 · N3040K · Robsin R22BETAII
  > FOUND BOTH SPINDLE BEARING SETS P/N A159-3. TSN: 120.1, BRINELLED
- [SDR 2025FA0000702](https://openairdocs.org/sdr/2025FA0000702.md): Bearing · brinelled · Oct 12, 2024 · N3040K · Robsin R22BETAII
  > FOUND BOTH SPINDLE BEARING SETS P/N A159-3, TSN: 1743.0, BRINELLED. NO OVER SPEEDS REPORTED
- [SDR 2024FA0000725](https://openairdocs.org/sdr/2024FA0000725.md): Blade · damaged · Sep 17, 2024 · N145CH · Bolkms BK117C2
  > DURING WALK AROUND BEFORE A FLIGHT THE PILOT NOTED THAT THE CREST COWLING HAD OPENED DURING SOME POINT AND STRUCK THE MR BLADES. PILOT REPORTED DAMAGE TO THE CREST COWLING DOOR ON THE #1 SIDE. TECHNICIAN ARRIVED AT THE ACFT. INSPECTED BLADES FOR DAMAGE IAW THE
- [SDR 2024FA0000685](https://openairdocs.org/sdr/2024FA0000685.md): Bearing · brinelled · Sep 4, 2024 · N460LE · Robsin R22BETAII
  > BRINELLED MAIN ROTOR BLADE SPINDLE BEARINGS.TSN: 163.3
- [SDR EVCA202406240001](https://openairdocs.org/sdr/EVCA202406240001.md): Blade · cracked · Jun 24, 2024 · N271AE · Bell 206L3
  > M/R BLADE INBOARD TRIM TABS CRACKED
- [SDR 3GMA2024031101](https://openairdocs.org/sdr/3GMA2024031101.md): Blade · damaged · Mar 11, 2024 · N482LF · Bolkms BK117C2
  > WHILE ON FINAL APPROACH TO KUNV AT 1420 LT, LOUD BANG WAS HEARD FOLLOWED BY RYTHMIC NOISE FROM ROTOR SYSTEM. INCIDENT OCCURRED AT APPROXIMATELY 2000 FT MSL (700-800 AGL). INITIAL ASSUMPTION WAS THAT AIRCRAFT HAD SUSTAINED A BIRD STRIKE. NOTIFIED CONTROL TOWER
- [SDR QMLA2024030120023](https://openairdocs.org/sdr/QMLA2024030120023.md): Hub · worn · Mar 1, 2024 · N105AM · Bell 407
  > ENROUTE TO BASE, DEVIATED TO AIRPORT/COMPANY HANGAR DUE TO EXCESSIVE VERTICAL AND LATERAL VIBRATION IN FORWARD FLIGHT AT AND ABOVE 95KIAS. VIBRATION EXPERIENCED IN CRUISE, CLIMB, AND DESCENT.
- [SDR QR9R2023122800001](https://openairdocs.org/sdr/QR9R2023122800001.md): Screw · mismanufactured · Dec 28, 2023 · Bolkms BK117C2
  > DURING INSTALLATION, MAINTENANCE DETECTED THE HEX HEAD SCREW COTTER PIN HOLE WAS HIGHER/CLOSER TO THE TOP/HEAD OF THE BOLT WHICH PREVENTED THE COTTER PIN FROM GOING THROUGH.
- [SDR HDNA20231214001](https://openairdocs.org/sdr/HDNA20231214001.md): Nut · loose · Dec 12, 2023 · N586WH · Urocop EC135P2
  > PILOT MADE A PRECAUTIONARY LANDING AFTER NOTING AN INCREASING MAIN ROTOR VIBRATION. AMTS DISCOVERED THE HARDWARE LOOSE SECURING THE YELLOW MRB S/N 3407 DAMPER STAY ASSEMBLY. DETAILED INSPECTION OF THE MRB AND AIRFRAME WAS PERFORMED AND ATTACHMENT HARDWARE WAS
- [SDR EVCA20231204002](https://openairdocs.org/sdr/EVCA20231204002.md): Blade · cracked · Dec 4, 2023 · N416AE · Bell 206L4
  > VAN HORN M/R BLADE INBOARD AND OUTBOARD TRIM TAB CRACKED
- [SDR EVCA202312040001](https://openairdocs.org/sdr/EVCA202312040001.md): Blade · cracked · Dec 4, 2023 · N416AE · Bell 206L4
  > VAN HORN M/R BLADE INBOARD TRIM TAB CRACKED
- [SDR 2025FA0000708](https://openairdocs.org/sdr/2025FA0000708.md): Bearing · brinelled · Nov 25, 2023 · N115LE · Robsin R22BETAII
  > FOUND BOTH SPINDLE BEARING SETS P/N A159-3, TSN: 730.4, BRINELLED
- [SDR EVCA2023110931](https://openairdocs.org/sdr/EVCA2023110931.md): Blade · cracked · Nov 8, 2023 · N460AE · Bell 206L4
  > VAN HORN M/R BLADE INBOARD TRIM TAB CRACKED
- [SDR EVCA202311090001](https://openairdocs.org/sdr/EVCA202311090001.md): Blade · cracked · Nov 8, 2023 · N460AE · Bell 206L4
  > VAN HORN M/R BLADE INBOARD TRIM TAB CRACKED
- [SDR EVCA103120231](https://openairdocs.org/sdr/EVCA103120231.md): Blade · cracked · Oct 30, 2023 · N32AE · Bell 206L1
  > VAN HORN M/R BLADE INBOARD TRIM TABS CRACKED
- [SDR EVCA202310310002](https://openairdocs.org/sdr/EVCA202310310002.md): Blade · cracked · Oct 30, 2023 · N32AE · Bell 206L1
  > VAN HORN M/R BLADE INBOARD TRIM TABS CRACKED
- [SDR 2023FA0000682](https://openairdocs.org/sdr/2023FA0000682.md): Bearing · brinelled · Oct 26, 2023 · N552LE · Robsin R22BETAII
  > IN FLIGHT VIBRATION. FOUND SPINDLE BEARINGS BRINELLED. NO OVER SPEEDS REPORTED. MRB P/N A016-6, S/N 6841 & S/N 6861. SPINDLE & BEARING ASSEMBLY P/N A158-3, S/N 2610 & S/N 2611. MRBS, SPINDLE & BEARING ASSY. TT / TSN: 284.9. REMOVED BRINELLED BEARING ASSEMBLIES
- [SDR ICRR202310060001](https://openairdocs.org/sdr/ICRR202310060001.md): Pin · cracked · Oct 6, 2023
  > A CRACK WAS DISCOVERD DURING PENETRANT INSPECTION PER SPM 710-32-02

Next page: https://openairdocs.org/jasc/6210/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 jasc_code = '6210'
ORDER BY difficulty_date DESC
```

This list as a web page: https://openairdocs.org/jasc/6210/reports

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