# JASC 3441: Inertial Guidance System

- Type: JASC system/component code (FAA)
- ATA chapter: 34 Navigation
- Title in the code table: INERTIAL GUIDANCE SYSTEM
- Service difficulty reports: 289
- FAA code table: https://www.faa.gov/sites/faa.gov/files/JASC_Code.pdf#page=39
- Page: https://openairdocs.org/jasc/3441

## What it covers

The navigation system which relies upon gyro platforms and accelerometers for its operation. Includes the control panel for the inertial navigation system; the instruments which receives their signal from the Inertial Navigation Unit (INU); and the unit containing the inertial platform and digital computer portion of the system. Use this JASC code for hardware components which do not have specific JASC codes assigned to them or when a system malfunction or failure occurs but the exact cause is not known. Typical parts are mode selector unit (MSU), control display unit (CDU), remote display unit (RDU), etc.

## Latest service difficulty reports

- [SDR AALA202609023707](https://openairdocs.org/sdr/AALA202609023707), Sep 1, 2026: ADIRU, FAILED (N867NN)
- [SDR 3EJA202510150001](https://openairdocs.org/sdr/3EJA202510150001), Sep 20, 2025: AHRS, NO DISCREPANCY (N809JS)
- [SDR NACA2025081000002](https://openairdocs.org/sdr/NACA2025081000002), Aug 10, 2025: IRU, FAILED (N405YK)
- [SDR CALA2025012702058](https://openairdocs.org/sdr/CALA2025012702058), Jan 23, 2025: IRU, FAULTED (N27903)
- [SDR YENA2024090301205](https://openairdocs.org/sdr/YENA2024090301205), Aug 29, 2024: IRU, FAULTED (N579JB)
- [SDR DALA2023031301832](https://openairdocs.org/sdr/DALA2023031301832), Mar 12, 2023: UNKNOWN, UNKNOWN (N654DL)
- [SDR ASAA2022100140130](https://openairdocs.org/sdr/ASAA2022100140130), Oct 1, 2022: RADAR, FAULT MESSAGE (N976AK)
- [SDR YENA2022100400985](https://openairdocs.org/sdr/YENA2022100400985), Sep 24, 2022: NONE, FAILED (N634JB)
- [SDR GTIA2022091936666](https://openairdocs.org/sdr/GTIA2022091936666), Sep 16, 2022: NONE, FAULTY (N510NK)
- [SDR ANCF20220919039](https://openairdocs.org/sdr/ANCF20220919039), Sep 15, 2022: ANTENNA, UNSERVICEABLE (N691AV)
- [SDR YENA2022082200811](https://openairdocs.org/sdr/YENA2022082200811), Aug 21, 2022: RADAR, FAILED (N929JB)
- [SDR ASAA2022081239497](https://openairdocs.org/sdr/ASAA2022081239497), Aug 12, 2022: CDU, INOPERATIVE (N915AK)
- [SDR ASAA2022081139496](https://openairdocs.org/sdr/ASAA2022081139496), Aug 11, 2022: KNOB, LOOSE (N915AK)
- [SDR YENA2022080300743](https://openairdocs.org/sdr/YENA2022080300743), Aug 1, 2022: DRIVE UNIT, FAILED (N613JB)
- [SDR YENA2022080300742](https://openairdocs.org/sdr/YENA2022080300742), Aug 1, 2022: TRANSCEIVER, FAILED (N613JB)
- [SDR IPXA2022072584562](https://openairdocs.org/sdr/IPXA2022072584562), Jul 25, 2022: EICAS, FAULT MESSAGE (N394UP)
- [SDR ASAA2022072439180](https://openairdocs.org/sdr/ASAA2022072439180), Jul 24, 2022: RADAR, INACCURATE (N942AK)
- [SDR DXTA2022072266440](https://openairdocs.org/sdr/DXTA2022072266440), Jul 21, 2022: AHRS, DEFECTIVE (N326QS)
- [SDR IPXA2022071884262](https://openairdocs.org/sdr/IPXA2022071884262), Jul 18, 2022: RADIO, FAULT MESSAGE (N124UP)
- [SDR GTIA2022070736511](https://openairdocs.org/sdr/GTIA2022070736511), Jul 5, 2022: NONE, INOPERATIVE (N523NK)
- [SDR GTIA2022070436508](https://openairdocs.org/sdr/GTIA2022070436508), Jul 2, 2022: NONE, INTERMITTENT (N614NK)
- [SDR DALA2022062404420](https://openairdocs.org/sdr/DALA2022062404420), Jun 23, 2022: ADIRU, FAULTED (N369NW)
- [SDR GTIA2022053136441](https://openairdocs.org/sdr/GTIA2022053136441), May 27, 2022: NONE, NONE (N503NK)
- [SDR YENA2022052000505](https://openairdocs.org/sdr/YENA2022052000505), May 18, 2022: TRANSCEIVER, FAILED (N809JB)
- [SDR ASAA2022051038258](https://openairdocs.org/sdr/ASAA2022051038258), May 10, 2022: RADAR, INOPERATIVE (N933AK)
- [SDR FDEA202203220643](https://openairdocs.org/sdr/FDEA202203220643), Mar 22, 2022: NONE, NONE (N927FD)
- [SDR IPXA2022021679082](https://openairdocs.org/sdr/IPXA2022021679082), Feb 16, 2022: RADAR, FAILED (N573UP)
- [SDR IPXA2021123077413](https://openairdocs.org/sdr/IPXA2021123077413), Dec 30, 2021: NONE, NONE (N620UP)
- [SDR DXTA2021122754290](https://openairdocs.org/sdr/DXTA2021122754290), Dec 26, 2021: NONE, NONE (N697QS)
- [SDR DALA2021120707529](https://openairdocs.org/sdr/DALA2021120707529), Dec 2, 2021: NONE, NONE (N347NB)
- [SDR GTIA2021112236132](https://openairdocs.org/sdr/GTIA2021112236132), Nov 20, 2021: NONE, FAILED (N935NK)
- [SDR GTIA2021110836096](https://openairdocs.org/sdr/GTIA2021110836096), Nov 4, 2021: NONE, NONE (N931NK)
- [SDR GTIA2021102136059](https://openairdocs.org/sdr/GTIA2021102136059), Oct 18, 2021: NONE, INOPERATIVE (N692NK)
- [SDR AALA202110155107](https://openairdocs.org/sdr/AALA202110155107), Oct 14, 2021: ADIRU, NONE (N304RB)
- [SDR W6JA20210224044](https://openairdocs.org/sdr/W6JA20210224044), Feb 21, 2021: IRU, FAILED (N132JE)
- [SDR DXTA2020111104329](https://openairdocs.org/sdr/DXTA2020111104329), Nov 10, 2020: INDICATOR, DEFECTIVE (N319QS)
- [SDR AALA202010049008](https://openairdocs.org/sdr/AALA202010049008), Oct 3, 2020: VOR SYSTEM, OUT OF TOLERANCE (N908NN)
- [SDR AALA2020091099014](https://openairdocs.org/sdr/AALA2020091099014), Sep 7, 2020: ADIRU, FAILED (N940AN)
- [SDR FDEA2020043090841](https://openairdocs.org/sdr/FDEA2020043090841), Apr 29, 2020: ADIRU, FAILED (N321FE)
- [SDR DALA2020031001779](https://openairdocs.org/sdr/DALA2020031001779), Mar 6, 2020: AIR DATA MODULE, FAULTY (N340NW)
- [SDR CALA2020011000117](https://openairdocs.org/sdr/CALA2020011000117), Jan 9, 2020: ADIRU, FAULTY (N77525)
- [SDR AALA202001069015](https://openairdocs.org/sdr/AALA202001069015), Jan 4, 2020: IRU, OUT OF ALIGNMENT (N742PS)
- [SDR YENA201909040514](https://openairdocs.org/sdr/YENA201909040514), Sep 4, 2019: ADIRU, FAILED (N709JB)
- [SDR AALA201908309005](https://openairdocs.org/sdr/AALA201908309005), Aug 29, 2019: ADIRU, FAILED (N920US)
- [SDR AALA201907259004](https://openairdocs.org/sdr/AALA201907259004), Jul 23, 2019: ADIRU, FAULTY (N807NN)
- [SDR SWAA2019071634939](https://openairdocs.org/sdr/SWAA2019071634939), Jul 15, 2019: IRU, FAILED (N445WN)
- [SDR R61A201907090701](https://openairdocs.org/sdr/R61A201907090701), Jul 9, 2019: IRU, FAULTED (N107HQ)
- [SDR CALA2019070501141](https://openairdocs.org/sdr/CALA2019070501141), Jul 5, 2019: ADIRU, FAULTY (N77258)
- [SDR AALA201907019009](https://openairdocs.org/sdr/AALA201907019009), Jun 30, 2019: UNKNOWN, MALFUNCTIONED (N804NN)
- [SDR FDEA201906051228](https://openairdocs.org/sdr/FDEA201906051228), Jun 5, 2019: TRANSCEIVER, MALFUNCTIONED (N972FD)

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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.