# JASC 3457: Global Positioning System

- Type: JASC system/component code (FAA)
- ATA chapter: 34 Navigation
- Title in the code table: GLOBAL POSITIONING SYSTEM
- Service difficulty reports: 635
- FAA code table: https://www.faa.gov/sites/faa.gov/files/JASC_Code.pdf#page=41
- Page: https://openairdocs.org/jasc/3457

## What it covers

The systems which are mainly dependent upon signals from ground transmitters or orbital satellites for their operations; systems such as VOR, ADF, DME, etc. Use this JASC code when there is insufficient information to assign one of the specific using system codes. Typical parts are antenna, control unit or receiver, coaxial connecting cable, remote switches, connectors, etc.

## Service difficulty reports (635, newest 50)

- [SDR CALA2026060516849](https://openairdocs.org/sdr/CALA2026060516849), Jun 3, 2026: Boeing 737824. ANTENNA. FAULTED. VNAV DISENGAGED ON TAKE OFF. LNAV SHOWS ON DISPLAY BUT DID NOT CAPTURE OR CYCLE. VNAV DISENGAGED ON TAKE OFF. LNAV SHOWS (N76529)
- [SDR QR9R2026060200001](https://openairdocs.org/sdr/QR9R2026060200001), Jun 2, 2026: Bolkms BK117C2. GPS. FAULTY. DURING IFR FLIGHT, GARMIN NR 2 WHEN ATTEMPTING TO SELECT OBS SUSPEND AT HOUND AND AGAIN AT POPER, THE GPS WOULD SEQUENCE
- [SDR CALA2026052516521](https://openairdocs.org/sdr/CALA2026052516521), May 21, 2026: Boeing 737924ER. GPS. FAULTED. GPS-R INVALID BOTH GPS SYS CHECK NORMAL. REF AMM 34-58-00. (N62884)
- [SDR DXTA2026032407354](https://openairdocs.org/sdr/DXTA2026032407354), Mar 21, 2026: Textrn TEXTRON700. GPS. FAULTED. AT 45,000 FEET WE LOST GPS 2 FOR ABOUT 10 MIN. AFTER ABOUT 10 MIN WE LOST GPS 1 AND HAD CASCADING FAILURES. WE LOST THE  (N815QS)
- [SDR DXTA2026012806680](https://openairdocs.org/sdr/DXTA2026012806680), Jan 26, 2026: Emb EMB505. GPS. MALFUNCTIONED. ON DEPARTURE FROM DTW DURING THE INITIAL CLIMB WE EXPERIENCED GPS LOI AND GPS LOSS OF POSITION. SHORTLY THEREAFTER WE EN (N303QS)
- [SDR CALA2025111411207](https://openairdocs.org/sdr/CALA2025111411207), Nov 14, 2025: Boeing 737824. ANTENNA. FAILED. GPS-L INVALID INFLIGHT REPLACED MMR-1 IAW AMM 34-31-42, LOST GPS SIGNAL ONCE AFTER INSTALLATION. REINSTALLED ORIG MMR-1  (N73270)
- [SDR QR9R2025110300001](https://openairdocs.org/sdr/QR9R2025110300001), Nov 3, 2025: Bolkms BK117C2. GPS. INOPERATIVE. NR 1 GPS FAILED TO BOOT PROPERLY AND STUCK IN FACTORY SETTINGS SCREEN DURING START RUNUP. REMOVED AND REPLACED GNS430W I
- [SDR QMLA2025080720085](https://openairdocs.org/sdr/QMLA2025080720085), Aug 7, 2025: Urocop EC135T2. GPS. FAILED. DURING A HIGH RECON ABOVE AN LZ AT A SENDING FACILITY, BOTH GPS UNITS LOST SIGNAL. (N28WS)
- [SDR ANCF2025052213](https://openairdocs.org/sdr/ANCF2025052213), May 21, 2025: Airbus A320214. GPS. MALFUNCTIONED. BOTH GPS LOST DURING TAKE-OFF NAV ADS-B RPTG (1)(2) FAULT WAS PRESENTED ON ECAM, GPS MONITOR WAS CHECKED AND THE SAT IN  (N481AV)
- [SDR 2024F00317](https://openairdocs.org/sdr/2024F00317), Dec 10, 2024: Beech 65B80. DISPLAY. FAILED. GARMIN 600 PFD FAILED IN CRUISE FLIGHT (N306D)
- [SDR CALA2024112002902](https://openairdocs.org/sdr/CALA2024112002902), Nov 19, 2024: Boeing 78710. INDICATOR. FAULTED. GLS LEFT AND GPS LEFT STATUS MSG FOUND MAINT MESSAGE 34-40121 ACTIVE. PERFORMED FIM TASK AND GPS/GLS L STATUS MESSAGE NO (N17002)
- [SDR QR9R2024100800005](https://openairdocs.org/sdr/QR9R2024100800005), Oct 8, 2024: Bolkms BK117C2. GPS. FAULTY. ABORTED TAKEOFF DUE TO #1 GARMIN WILL NOT SELF TEST. REMOVED AND REPLACED GNS430W, REF 145MMS-023. MOC OKAY.
- [SDR 2024FA0000739](https://openairdocs.org/sdr/2024FA0000739), Sep 26, 2024: Beech E90. GPS. DEFECTIVE. WHILE ENROUTE TO KLVS FROM KGUY, THE GARMIN GNS530W SCREEN SHUT OFF. WHILE TROUBLESHOOTING, A STRONG ELECTRICAL SMELL FI (N98PM)
- [SDR QR9R2024091900003](https://openairdocs.org/sdr/QR9R2024091900003), Sep 19, 2024: Bolkms BK117C2. GPS. FAULTY. DURING RUN-UP, #2 GARMIN WOULD NOT ACQUIRE SATELLITES. REMOVED AND REPLACED #2 GARMIN IAW BK 117 C-2 COMM NAV. MOC SUCCE
- [SDR CALA2024071001991](https://openairdocs.org/sdr/CALA2024071001991), Jul 8, 2024: Boeing 737824. RECEIVER. INOPERATIVE. GPS L INOP TROUBLESHOT IAW FIM 34-31 TASK 801 FOUND BREAKER P6-1 A13 TO BE POPPED ATTEMPTED RESET WOULDN''T RESET. REPLA (N18243)
- [SDR GTIA2024022037932](https://openairdocs.org/sdr/GTIA2024022037932), Feb 19, 2024: Airbus A321231. GPS. MALFUNCTIONED. GPS PRIMARY LOST IN FLIGHT ATC FAIL LIGHT OH OH XSPONDER -PERFORMED OPS AND C/B RESET IAW TSM 34-52-00-810-847-A AND AMM (N657NK)
- [SDR DXTA2024021210872](https://openairdocs.org/sdr/DXTA2024021210872), Feb 11, 2024: Textrn TEXTRON700. GDU. FAULTED. DURING DECENT GSD FAIL 1,2 AND 3 DISPLAYED ALONE WITH MULTIPLE CORRESPONDING SYSTEM, FAILURE MESSAGES. AVIONICS INTEGRAT (N830QS)
- [SDR 2023FA0000846](https://openairdocs.org/sdr/2023FA0000846), Dec 4, 2023: Piper PA32R300. UNKNOWN. UNKNOWN. DURING MAINTENANCE FLIGHT, AFTER INSTALLATION OF GARMIN GI275'S AND GFC500, THE OWNER SMELLED THE DISTINCT ODOR OF HOT W (N5924V)
- [SDR HYIA20231031002](https://openairdocs.org/sdr/HYIA20231031002), Oct 27, 2023: Cessna 402C. GPS. FAILED. PILOT REPORTED THE GARMIN 430 STOPPED WORKING, SCREEN WENT BLANK AND NOTED ELECTRICAL BURNING SMELL. MAINTENANCE REPLACE (N2615G)
- [SDR 2023FA0000410](https://openairdocs.org/sdr/2023FA0000410), Aug 11, 2023: Cessna 182E. DATA CARD. MALFUNCTIONED. RECEIVED NEW TAWS/TERRAIN DATA CARD FROM GARMIN, CARD DATA DOWNLOAD WAS ACCOMPLISHED ON GARMIN WEBSITE USING GARMIN CARD (N509BW)
- [SDR 2023FA0000409](https://openairdocs.org/sdr/2023FA0000409), Aug 11, 2023: Cessna 182E. DATA CARD. DAMAGED. GARMIN NAV DATABASE CARD CASE HAD 3 OF 4 ASSEMBLY TABS BREAK (N509BW)
- [SDR 2023FA0000408](https://openairdocs.org/sdr/2023FA0000408), Aug 11, 2023: Cessna 182E. DATA CARD. UNSERVICEABLE. GARMIN 430W TAWS/TERRAIN DATA CARD CASE TABS BROKE ALLOWING METAL PORTION TO DESPERATE AND CIRCUIT CARD FELL OUT. (N509BW)
- [SDR AALA202301139418](https://openairdocs.org/sdr/AALA202301139418), Jan 11, 2023: Boeing 737823. ANTENNA. FAULTED. AIRCRAFT WAS NOT GROUNDED: AIRCRAFT MASTER CAUTION ILLUMINATED - INERTIAL REFERENCE SYSTEM GPS LIGHT ILLUMINATED ON OVER (N997NN)
- [SDR AALA202301130343](https://openairdocs.org/sdr/AALA202301130343), Jan 11, 2023: Boeing 737823. ANTENNA. FAULTED. AIRCRAFT WAS NOT GROUNDED: AIRCRAFT MASTER CAUTION ILLUMINATED - INERTIAL REFERENCE SYSTEM GPS LIGHT ILLUMINATED ON OVER (N997NN)
- [SDR 2022F00436](https://openairdocs.org/sdr/2022F00436), Oct 28, 2022: Cessna 208A. AVIONICS UNIT. SHORTED. CREW EXPERIENCE SMOKE IN THE COCKPIT EN ROUTE FROM MKL-ATL AND DIVERTED TO M29 IN CLIFTON, TN. UPON INSPECTION BY MAINTE (N803JA)
- [SDR 1UPA20220419037](https://openairdocs.org/sdr/1UPA20220419037), Apr 19, 2022: Matrnt M2. GPS. FAULTED. GPS ISSUES
- [SDR 1UPA20220419033](https://openairdocs.org/sdr/1UPA20220419033), Apr 19, 2022: Matrnt M2. GPS. MALFUNCTIONED. GPS ISSUES
- [SDR 1UPA20220419028](https://openairdocs.org/sdr/1UPA20220419028), Apr 19, 2022: Matrnt M2. GPS. UNKNOWN. VEHICLE HAD AN INCIDENT DUE TO GPS ISSUES.
- [SDR YENA2021072300475](https://openairdocs.org/sdr/YENA2021072300475), Jul 22, 2021: Airbus A320232. GPS. FAULTED. FLT # 1557, FLL-CUN. GPS PRIMARY LOST, NAV ACCUR LOW, EST 30 MILES OFF ; PERFORMED RE-ALIGMENT OF ADIRUS IAW AMM 34-10-0 (N627JB)
- [SDR 2021F00117](https://openairdocs.org/sdr/2021F00117), May 17, 2021: Agusta AW109SP. GPS. DISENGAGED. ON 05/01/21 ON A EARLY MORNING NIGHT IFR RNAV 08 APPROACH TO ASTORIA AIRPORT (KAST). HELICOPTER HAD FAILURE INDICATIONS  (N361CR)
- [SDR O2GA2021012688301](https://openairdocs.org/sdr/O2GA2021012688301), Jan 16, 2021: Beech B300. GPS. FAILED. ON APPROACH TO KLWB, PILOT AND COPILOTS FMS FAILED 3 TIMES. DID NOT RECOVER AFTER THE 3RD TIME. DIVERTED TO KROA. LANDIN (N883UP)
- [SDR 2020FA0000526](https://openairdocs.org/sdr/2020FA0000526), Dec 8, 2020: GPS. UNKNOWN. MY AIRCRAFT IS EQUIPPED WITH A GARMIN 430 WAAS NAV-COM. MONTHLY UPDATES ARE REQUIRED TO MAINTAIN A CURRENT GPS DATABASE.
- [SDR IPXA2020112362721](https://openairdocs.org/sdr/IPXA2020112362721), Nov 23, 2020: Boeing 7478F. GPS. INOPERATIVE. INSPECTION TYPE: N/A AIR TURNBACK. FOR GPS SYSTEM FAILURES CLN LT GPS ANT CNCTR & TEST, IAW AMM 34-58-00-715-001, REV 34 (N618UP)
- [SDR IPXA2020112362709](https://openairdocs.org/sdr/IPXA2020112362709), Nov 22, 2020: Boeing 7478F. TRANSPONDER. INOPERATIVE. INSPECTION TYPE: N/A ATB. TRANSPONDER RT CAME ON INFLIGHT CRUISE, SHORTLY THEREAFTER TRANSPONDER LT ADVISORY. 34530300R  (N618UP)
- [SDR QMLA2020100520051](https://openairdocs.org/sdr/QMLA2020100520051), Oct 3, 2020: Urocop EC135T1. GPS. SHORTED. HTAWS FAILED FOLLOWED BY THE GNS 530 FOLLOWED BY THE TECHNOSONIC HEAD IN MEDICAL COMPARTMENT WITH SMOKE. INSPECTED WIRIN (N135NP)
- [SDR AALA202009149010](https://openairdocs.org/sdr/AALA202009149010), Sep 12, 2020: Airbus A319115. MMR. FAULT MESSAGE. AIRCRAFT WAS GROUNDED: ON APPROACH MIA SELECTED RNAV (GPS) RWY 8L APPROACH NAV AND FINAL NOT DISPLAYED ON FMA. FREQ 111. (N8030F)
- [SDR GTIA2020090335343](https://openairdocs.org/sdr/GTIA2020090335343), Sep 2, 2020: Airbus A319132. GPS. MALFUNCTIONED. GPS PRIMARY LOST. PERFORMED TEST OF GAS IAW A319 AIRBUS 34-36-00 NO FAULTS NOTED OK FOR CONTINUED SERVICE. (N526NK)
- [SDR CALA2020022400495](https://openairdocs.org/sdr/CALA2020022400495), Feb 21, 2020: Boeing 737824. COMPUTER. INOPERATIVE. GPWS INOP LIGHT LIGHT ON INTERMITTENT TO CONT POPPING SOUND FROM OVHD COCKPIT SPEAKER WIT H GPWS LIGHT ON REPLACED EGPWS (N26226)
- [SDR 2020FA0000083](https://openairdocs.org/sdr/2020FA0000083), Jan 11, 2020: Amd FALCON2000EX. MODULE. FAILED. GPS MODULE #1 FAIL UPON COMPLETION OF DIGITAL CHART LOAD INTO THE AIRCRAFT'S INDS. FOLLOWING THE GPS #1 FAIL WE RECEIVED (N200CR)
- [SDR AALA2019122099018](https://openairdocs.org/sdr/AALA2019122099018), Dec 18, 2019: Boeing 737823. GPS. FAILED. AIRCRAFT WAS GROUNDED: FLIGHT DIVERTED TO MIA ON ACCOUNT OF TOTAL GPS NAVIGATION FAILURE. NO EMERGENCY WAS DECLARED. MAI (N927AN)
- [SDR Q6VA20200319001](https://openairdocs.org/sdr/Q6VA20200319001), Oct 10, 2019: Pilats PC1245. GPS. MALFUNCTIONED. DEPARTING KEKO HEADED TO KSLC CLIMBING THROUGH 8,000 FEET MSL ONE OF THE MEDICAL CREW MEMBERS REPORTED A BURNT SMELL. TH (N212PB)
- [SDR HALA2019080520382](https://openairdocs.org/sdr/HALA2019080520382), Aug 2, 2019: Airbus A330243. RECEIVER. FAULTED. ETOPS - NAV GPS 1 FAULT ON ECAM. REMOVED AND REPLACED NR 1 MMR PER AMM 34-36-31. OPS CHECK GOOD. RECEIVER, MULTI OFF 43- (N373HA)
- [SDR HALA2019080520381](https://openairdocs.org/sdr/HALA2019080520381), Aug 2, 2019: Airbus A330243. RECEIVER. FAULTED. ETOPS - ECAM NAV GPS 2 FAULT. REMOVED AND REPLACED THE NR 2 MMR IAW AMM 34-36-31. OPS CHECK GOOD. LAND CAT III CAPABILIT (N373HA)
- [SDR AALA201907129006](https://openairdocs.org/sdr/AALA201907129006), Jul 11, 2019: Airbus A319112. UNKNOWN. MALFUNCTIONED. AIRCRAFT IN BASE VISIT: MAINTENANCE REPORTS BOTH GPS'S FAILED DURING FLIGHT IN COCKPIT. MAINTENANCE PERFORMED TSM 34-36- (N763US)
- [SDR SIMA2019062016002](https://openairdocs.org/sdr/SIMA2019062016002), Jun 16, 2019: Emb EMB135KL. GPS. MALFUNCTIONED. UNRELIABLE NAV INFORMATION IN FLIGHT BETWEEN FO X CA MFD FMS AND GPS. RESET AND PERFORMED OPC CHECK OF FMS/GPS IAW AMM 3 (N810AE)
- [SDR DALA2019061303566](https://openairdocs.org/sdr/DALA2019061303566), Jun 10, 2019: Boeing 737932ER. GPS. MALFUNCTIONED. GPS L&R INOP. UPLOADING SOFTWARE TO BOTH MMR'S PER B737 AMM 34-31 AND REF. ERA 569218-14. R&R BOTH MMR'S 1&2 AS PER ERA  (N925DZ)
- [SDR RJEF20181126001](https://openairdocs.org/sdr/RJEF20181126001), Nov 25, 2018: Airbus A320233. GPS. FAILED. DURING CLIMB OF FLIGHT TP831 FROM LIM TO CUZ, THE AIRCRAFT HAD FAILURE OF GPS1 AND RETURNED TO LIM FOR MAINTENANCE. AFTE (N685TA)
- [SDR SOKF20181116009](https://openairdocs.org/sdr/SOKF20181116009), Nov 12, 2018: Airbus A320233. GPS. FAULTED. DURING FLIGHT FROM LIM TO CUZ THE AIRCRAFT RETURN TO LIM DUE TO ECAM WARNING MESSAGE NAV GPS 1 FAULTGPS 1. AT LIM STATIO (N683TA)
- [SDR HALA2018091500423](https://openairdocs.org/sdr/HALA2018091500423), Sep 15, 2018: Airbus A321271N. GPS. MALFUNCTIONED. ATB - ON CLIMB OUT F/O ND DISPLAYED "GPS PRIMARY LOST" CHECKED NAVIGATION ERROR W/GROUND BASED VOR AND NAV ERROR +/- 6-7 (N214HA)
- [SDR 2018FA0000339](https://openairdocs.org/sdr/2018FA0000339), Aug 20, 2018: Cessna 182T. AUTOPILOT SYS. CORRUPTED. AUTOPILOT INTEGRATED WITH G1000 REFUSED TO DISCONNECT. (N365CA)

All 635: https://openairdocs.org/jasc/3457/reports.md

## Other codes in chapter 34

- [JASC 3400](https://openairdocs.org/jasc/3400): Navigation System (692 reports)
- [JASC 3410](https://openairdocs.org/jasc/3410): Flight Environment Data (218 reports)
- [JASC 3411](https://openairdocs.org/jasc/3411): Pitot/Static System (1,586 reports)
- [JASC 3412](https://openairdocs.org/jasc/3412): Outside Air Temperature Indicator/Sensor (254 reports)
- [JASC 3413](https://openairdocs.org/jasc/3413): Rate of Climb Indicator (157 reports)
- [JASC 3414](https://openairdocs.org/jasc/3414): Airspeed/Mach Indicator (860 reports)
- [JASC 3415](https://openairdocs.org/jasc/3415): High Speed Warning (39 reports)
- [JASC 3416](https://openairdocs.org/jasc/3416): Altimeter, Barometric/Encoder (1,256 reports)
- [JASC 3417](https://openairdocs.org/jasc/3417): Air Data Computer (1,210 reports)
- [JASC 3418](https://openairdocs.org/jasc/3418): Stall Warning System (1,641 reports)
- [JASC 3420](https://openairdocs.org/jasc/3420): Attitude and Direction Data System (772 reports)
- [JASC 3421](https://openairdocs.org/jasc/3421): Attitude Gyro and Indicating System (1,142 reports)
- [JASC 3422](https://openairdocs.org/jasc/3422): Directional Gyro and Indicating System (649 reports)
- [JASC 3423](https://openairdocs.org/jasc/3423): Magnetic Compass (101 reports)
- [JASC 3424](https://openairdocs.org/jasc/3424): Turn and Bank/Rate of Turn Indicator (153 reports)
- [JASC 3425](https://openairdocs.org/jasc/3425): Integrated Flight System (1,148 reports)
- [JASC 3430](https://openairdocs.org/jasc/3430): Landing and Taxi Aids (56 reports)
- [JASC 3431](https://openairdocs.org/jasc/3431): Localizer/VOR System (129 reports)
- [JASC 3432](https://openairdocs.org/jasc/3432): Glide Slope System (66 reports)
- [JASC 3433](https://openairdocs.org/jasc/3433): Microwave Landing System (26 reports)
- [JASC 3434](https://openairdocs.org/jasc/3434): Marker Beacon System (27 reports)
- [JASC 3435](https://openairdocs.org/jasc/3435): Heads Up Display System (10 reports)
- [JASC 3436](https://openairdocs.org/jasc/3436): Wind Shear Detection System (70 reports)
- [JASC 3440](https://openairdocs.org/jasc/3440): Independent Position Determining System (261 reports)
- [JASC 3441](https://openairdocs.org/jasc/3441): Inertial Guidance System (289 reports)
- [JASC 3442](https://openairdocs.org/jasc/3442): Weather Radar System (3,442 reports)
- [JASC 3443](https://openairdocs.org/jasc/3443): Doppler System (110 reports)
- [JASC 3444](https://openairdocs.org/jasc/3444): Ground Proximity System (552 reports)
- [JASC 3445](https://openairdocs.org/jasc/3445): Air Collision Avoidance System (214 reports)
- [JASC 3446](https://openairdocs.org/jasc/3446): Non Radar Weather System (23 reports)
- [JASC 3450](https://openairdocs.org/jasc/3450): Dependent Position Determining System (106 reports)
- [JASC 3451](https://openairdocs.org/jasc/3451): DME/TACAN System (197 reports)
- [JASC 3452](https://openairdocs.org/jasc/3452): ATC Transponder System (624 reports)
- [JASC 3453](https://openairdocs.org/jasc/3453): Long-Range Navigation (LORAN) System (175 reports)
- [JASC 3454](https://openairdocs.org/jasc/3454): Visual Omnirange (VOR) System (317 reports)
- [JASC 3455](https://openairdocs.org/jasc/3455): Automatic Direction Finder (ADF) System (164 reports)
- [JASC 3456](https://openairdocs.org/jasc/3456): Omega Navigation System (9 reports)
- [JASC 3460](https://openairdocs.org/jasc/3460): Flight Management Computing Hardware System (4,690 reports)
- [JASC 3461](https://openairdocs.org/jasc/3461): Flight Management Computing Software System (68 reports)
- [JASC 3497](https://openairdocs.org/jasc/3497): Navigation System Wiring (269 reports)

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