# SDR U0GA202311150001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 13, 2023
- Submitted: November 15, 2023
- Operation: Air carrier
- Aircraft: [N760BG](https://openairdocs.org/aircraft/N760BG), registered now
- Make and model: Skrsky S76C
- Aircraft serial: 760733
- Aircraft time: 5,477 hours, 8,886 cycles
- Engine: Tmeca ARRIEL2S2
- Engine time: 6,036 hours, 20,871 cycles
- System (JASC): [6710 · Main Rotor Control](https://openairdocs.org/jasc/6710)
- Part: Control Rod
- Part number: 7640000034059
- Condition: Damaged
- Location: Main Rotor
- Stage of operation: IN
- How discovered: V
- Nature of condition: F
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/U0GA202311150001

## Discrepancy

BRISTOW RECENTLY DISCOVERED A LOOSE JAM NUT ON AFT M/R SERVO INPUT ROD END DURING A SCHEDULED INSPECTION.  THE JAM NUT IS THE SUBJECT OF FAA AD 2015-19-51, AD 2017-19-01 AND SIK AWL 300 HOUR INSPECTION ITEM 30A. THE INTENT OF THESE INSPECTIONS IS ‘. TO DETECT A LOOSE JAMNUT AND PREVENT FAILURE OF THE PUSHROD ASSEMBLY, LOSS OF M/R FLIGHT CONTROL, AND SUBSEQUENT LOSS OF CONTROL OF THE HELICOPTER. REPLACED CONTROL ROD IAW SIK AWL

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