# JASC 6730: Rotorcraft Servo System - Type: JASC system/component code (FAA) - ATA chapter: 67 Rotors Flight Control - Title in the code table: ROTORCRAFT SERVO SYSTEM - Service difficulty reports: 647 - FAA code table: https://www.faa.gov/sites/faa.gov/files/JASC_Code.pdf#page=59 - Page: https://openairdocs.org/jasc/6730 ## What it covers The system which ensures distribution of mechanical or electrical power to the rotor servo-control system. Includes systems used to monitor and indicate operation of the servo control system. Typical parts are pressure relief valves, electro valves, check valves, accumulators, etc. ## Latest service difficulty reports - [SDR 454A260420151853](https://openairdocs.org/sdr/454A260420151853), Apr 20, 2026: SPRING, OVERTORQUED (N369PA) - [SDR PN1R202602200002](https://openairdocs.org/sdr/PN1R202602200002), Feb 20, 2026: SERVO CONTROL, LEAKING (N568AE) - [SDR QR9R2023032200001](https://openairdocs.org/sdr/QR9R2023032200001), Mar 22, 2023: ACTUATOR, ILLUMINATED - [SDR QR9R20220311001](https://openairdocs.org/sdr/QR9R20220311001), Mar 11, 2022: ACTUATOR, FAILED - [SDR AC2A202110029201](https://openairdocs.org/sdr/AC2A202110029201), Oct 2, 2021: SERVO, UNSERVICEABLE (N292MH) - [SDR QR9R20210921001](https://openairdocs.org/sdr/QR9R20210921001), Sep 21, 2021: ACTUATOR, OUT OF TOLERANCE - [SDR AC2A202109299201](https://openairdocs.org/sdr/AC2A202109299201), Sep 20, 2021: CONTROL SERVO, UNSERVICEABLE (N927SC) - [SDR CA190705005](https://openairdocs.org/sdr/CA190705005), Jul 3, 2019: SERVO, ABNORMAL - [SDR CA190603014](https://openairdocs.org/sdr/CA190603014), May 30, 2019: SERVO, LEAKING - [SDR CA190524013](https://openairdocs.org/sdr/CA190524013), May 23, 2019: SERVO, DAMAGED - [SDR YV3R2019012200088](https://openairdocs.org/sdr/YV3R2019012200088), May 15, 2019: SERVO, LEAKING - [SDR YV3R2019012200087](https://openairdocs.org/sdr/YV3R2019012200087), May 15, 2019: SERVO, LEAKING - [SDR YV3R2019012200084](https://openairdocs.org/sdr/YV3R2019012200084), May 15, 2019: SERVO, LEAKING - [SDR AC2R2019060549206](https://openairdocs.org/sdr/AC2R2019060549206), May 12, 2019: SERVO, WORN (N292MH) - [SDR YV3R2019012200079](https://openairdocs.org/sdr/YV3R2019012200079), May 6, 2019: SERVO, LEAKING - [SDR AC2R2019050201](https://openairdocs.org/sdr/AC2R2019050201), Apr 30, 2019: PRESSURE SWITCH, LEAKING (N639GG) - [SDR HDNA201904290015](https://openairdocs.org/sdr/HDNA201904290015), Apr 29, 2019: SERVO, DAMAGED (N135BU) - [SDR YV3R2019012200071](https://openairdocs.org/sdr/YV3R2019012200071), Apr 18, 2019: SERVO, LEAKING - [SDR YV3R2019012200069](https://openairdocs.org/sdr/YV3R2019012200069), Apr 17, 2019: SERVO, LEAKING - [SDR AC2R2019060549203](https://openairdocs.org/sdr/AC2R2019060549203), Mar 9, 2019: SERVO, WORN (N921GL) - [SDR CA190220027](https://openairdocs.org/sdr/CA190220027), Feb 10, 2019: LIMIT SWITCH, LEAKING - [SDR CA190220025](https://openairdocs.org/sdr/CA190220025), Feb 9, 2019: LIMIT SWITCH, LEAKING - [SDR YV3R2019021200021](https://openairdocs.org/sdr/YV3R2019021200021), Feb 7, 2019: SERVO, LEAKING (N217DK) - [SDR YV3R2019021200020](https://openairdocs.org/sdr/YV3R2019021200020), Feb 7, 2019: SERVO, LEAKING (N217DK) - [SDR YV3R2019021200019](https://openairdocs.org/sdr/YV3R2019021200019), Feb 5, 2019: SERVO, LEAKING (N217DK) - [SDR AC2R2019060549208](https://openairdocs.org/sdr/AC2R2019060549208), Mar 1, 2018: SERVO, WORN (N392JS) - [SDR M3XA2018010401](https://openairdocs.org/sdr/M3XA2018010401), Jan 4, 2018: SERVO, LEAKING (N253MT) - [SDR HEER20171013748](https://openairdocs.org/sdr/HEER20171013748), Oct 13, 2017: SERVO, LEAKING (N947PH) - [SDR AC2R2019060549207](https://openairdocs.org/sdr/AC2R2019060549207), May 2, 2017: SERVO, WORN (N392JS) - [SDR AC2R2019060549205](https://openairdocs.org/sdr/AC2R2019060549205), Jan 10, 2017: SERVO, WORN (N292MH) - [SDR HEER20160928327](https://openairdocs.org/sdr/HEER20160928327), Sep 28, 2016: BEARING, BURNED (N923PH) - [SDR AC2R2019060549204](https://openairdocs.org/sdr/AC2R2019060549204), Sep 11, 2016: SERVO, WORN (N292MH) - [SDR AC2R2019060549202](https://openairdocs.org/sdr/AC2R2019060549202), Aug 12, 2016: SERVO, WORN (N921G) - [SDR 2016FA0000274](https://openairdocs.org/sdr/2016FA0000274), Jun 2, 2016: SERVO, FAILED (N866MB) - [SDR H4QA20160223001](https://openairdocs.org/sdr/H4QA20160223001), Feb 22, 2016: SERVO, MALFUNCTIONED (N718MD) - [SDR CA160217003](https://openairdocs.org/sdr/CA160217003), Feb 12, 2016: SERVO, LEAKING - [SDR CA160128006](https://openairdocs.org/sdr/CA160128006), Jan 21, 2016: LIMIT SWITCH, LEAKING - [SDR 39LA20151206150](https://openairdocs.org/sdr/39LA20151206150), Dec 6, 2015: SERVO, LEAKING (N261F) - [SDR CA151207008](https://openairdocs.org/sdr/CA151207008), Dec 4, 2015: SERVO, LEAKING - [SDR ZS4R20151012001](https://openairdocs.org/sdr/ZS4R20151012001), Oct 12, 2015: BOLT, WORN - [SDR HEER20150925719](https://openairdocs.org/sdr/HEER20150925719), Sep 25, 2015: SERVO, FAILED (N933PH) - [SDR CA150603011](https://openairdocs.org/sdr/CA150603011), Jun 3, 2015: SERVO, FAILED - [SDR AC2R2019060549201](https://openairdocs.org/sdr/AC2R2019060549201), May 17, 2015: SERVO, WORN (N921GL) - [SDR CA150224021](https://openairdocs.org/sdr/CA150224021), Feb 2, 2015: O-RING, LEAKING - [SDR CA140819004](https://openairdocs.org/sdr/CA140819004), Aug 7, 2014: SERVO, MALFUNCTIONED - [SDR I2WA201407180001](https://openairdocs.org/sdr/I2WA201407180001), Jul 18, 2014: CONTROL SERVO, LEAKING (N197BH) - [SDR CA140710007](https://openairdocs.org/sdr/CA140710007), Jul 9, 2014: CONTROL ROD, WORN - [SDR HCMA2014FA0000434](https://openairdocs.org/sdr/HCMA2014FA0000434), Jul 3, 2014: SERVO, EXCESS PLAY (N11QG) - [SDR QMLA2014042914045](https://openairdocs.org/sdr/QMLA2014042914045), Apr 29, 2014: ACTUATOR, LEAKING (N145HH) - [SDR 39LA2014041570](https://openairdocs.org/sdr/39LA2014041570), Apr 15, 2014: SERVO CONTROL, CORRODED (N505R) --- From OpenAirDocs.org, an independent open copy of FAA data. 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