# JASC 6397: Main Rotor Drive System Wiring

- Type: JASC system/component code (FAA)
- ATA chapter: 63 Main Rotor Drive
- Title in the code table: MAIN ROTOR DRIVE SYSTEM WIRING
- Service difficulty reports: 17
- FAA code table: https://www.faa.gov/sites/faa.gov/files/JASC_Code.pdf#page=58
- Page: https://openairdocs.org/jasc/6397

## What it covers

For reports indicating a problem with wiring specific to the Main Rotor Drive System.

## Latest service difficulty reports

- [SDR QMLA2025071420072](https://openairdocs.org/sdr/QMLA2025071420072), Jul 13, 2025: WIRE HARNESS, CHAFED (N407AM)
- [SDR HEEA202407020001](https://openairdocs.org/sdr/HEEA202407020001), Jun 28, 2024: CONNECTOR, CONTAMINATED (N152PH)
- [SDR QMLA2024062620073](https://openairdocs.org/sdr/QMLA2024062620073), Jun 22, 2024: CONNECTOR, CONTAMINATED (N941AM)
- [SDR QMLA2024062520069](https://openairdocs.org/sdr/QMLA2024062520069), Jun 22, 2024: CONNECTOR, MALFUNCTIONED (N338AM)
- [SDR M3XA20210506003](https://openairdocs.org/sdr/M3XA20210506003), May 3, 2021: CONNECTOR, DIRTY (N517MT)
- [SDR QMLA2018120548128](https://openairdocs.org/sdr/QMLA2018120548128), Dec 4, 2018: CONNECTOR, LOOSE (N604CF)
- [SDR CHIR20171203](https://openairdocs.org/sdr/CHIR20171203), Dec 3, 2017: CONNECTOR, BROKEN (N246CH)
- [SDR 2017FA0000324](https://openairdocs.org/sdr/2017FA0000324), Jun 27, 2017: WIRE, CHAFED (N820PM)
- [SDR 3D9A2016102500007](https://openairdocs.org/sdr/3D9A2016102500007), Oct 24, 2016: CONNECTOR, DIRTY (N401MF)
- [SDR CA130510004](https://openairdocs.org/sdr/CA130510004), May 10, 2013: POTENTIOMETER, INTERMITTENT
- [SDR CA100819008](https://openairdocs.org/sdr/CA100819008), Aug 18, 2010: WIRE, FAILED
- [SDR RMXAN5431551409](https://openairdocs.org/sdr/RMXAN5431551409), May 12, 2009: WIRE HARNESS, ARCED (N54315)
- [SDR HEEA116216](https://openairdocs.org/sdr/HEEA116216), Jul 5, 2007: CONNECTOR, CONTAMINATED (N343PH)
- [SDR HEEA108172](https://openairdocs.org/sdr/HEEA108172), Feb 22, 2006: WIRE, CHAFED (N108X)
- [SDR ALG2005F00111](https://openairdocs.org/sdr/ALG2005F00111), Nov 18, 2005: CONNECTOR, DIRTY (N457AL)
- [SDR EGRR097941](https://openairdocs.org/sdr/EGRR097941), Nov 4, 2004: WIRE, MISINSTALLED (N76AF)
- [SDR ALG2004F00046](https://openairdocs.org/sdr/ALG2004F00046), Aug 20, 2004: WIRE, SHORTED (N937AL)

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From OpenAirDocs.org, an independent open copy of FAA data. Only the Federal Register edition on govinfo.gov is the official legal text of an AD.