# Service difficulty reports: JASC 3453 A list on [JASC 3453](https://openairdocs.org/jasc/3453.md). Reports filed under 3453 · Long-Range Navigation (LORAN) System, newest first. Page 1 of 4 · 175 reports - [SDR CALA2026041515382](https://openairdocs.org/sdr/CALA2026041515382.md): Antenna · sheared · Apr 14, 2026 · N69847 · Boeing 737924ER > DURING TROUBLESHOOTING OF LOG PAGE 8548682 FOUND LOWER ATC ANTENNA FIN SHEARED OFF. PERFORMED GVI OF LOWER ANTENNA AREA. NO OTHER DAMAGE FOUND BESIDES BROKEN ANTENNA. DURING REMOVAL OF ANTENNA, NO DAMAGED NOTED TO COAXIAL CONNECTOR, AND SURROUNDING AREAS SEEM - [SDR UIEA2024080300780](https://openairdocs.org/sdr/UIEA2024080300780.md): Transponder · faulted · Aug 3, 2024 · N863GT · Boeing 7478F > INTERMITTENT LH & RH TRANSPONDER EICAS MSG & LH & RH ATC STATUS MSG. NOTE: GPS INFO ON POS REF PAGE MISSING WITH ASSOCIATED EICAS. CYCLED ALL ATC & MMR C/B AND THEN LH & RH ATC GND TEST PASSED PER AMM 34-53-00/501, AMM 34-58-00/501 & MX TIP 23 ISSUE 10. - [SDR ABXA20240720140](https://openairdocs.org/sdr/ABXA20240720140.md): Control Panel · malfunctioned · Jul 20, 2024 · N219CY · Boeing 767383 > DURING TAXI OUT LEFT AND RIGHT TRANSPONDER INOP. A/C RETURNED TO GATE AND MTX GROUNDED A/C.MTX PERF L AND R ATC TXPNR BITE CHECKS PER AMM 34-53-01, NO DEFECTS NOTED. REMOVED AND REPLACED ATC CONTROL PANEL PER AMM 34-53-02, A/C RELEASED RVSM COMPLIANT RETUR - [SDR UIEA2024060600498](https://openairdocs.org/sdr/UIEA2024060600498.md): Computer · malfunctioned · Jun 6, 2024 · N482MC · Boeing 747443 > TCAS OFF MSG AFTER T/O/. ATC REPORTS THEY ARE UNABLE TO RECEIVE OUR MODE "A" OR "C" INFORMATION.(

REPLACED TCAS COMPUTER PER AMM 34-45-01. OPS CHECK NML. LH AND RH ATC GRD TEST PER AMM 34-52-00, OPS CK NML.

) - [SDR ABXA2024052092](https://openairdocs.org/sdr/ABXA2024052092.md): Transponder · malfunctioned · May 20, 2024 · N763CK · Boeing 7673P6 > DURING TAXI OUT ATC NOT RECEIVING INFO FROM EITHER XPDR. NO EICAS MSG. AC RETURNED TO THE GATE AND MAINTENANCE GROUNDED AC AND PERFORMED OPS CHECK IAW B767 AMM 34-5302 AND ATC WAS PICKING UP SIGNAL NOW AND WAS OPERATING NORMALLY. MAINTENANCE RETURED AC TO SER - [SDR SWIA20240710516](https://openairdocs.org/sdr/SWIA20240710516.md): Antenna · bent · May 16, 2024 · N679CA · Cndair CL6002D24 > WIFI AFT ATG ANTENNA INTERNAL STRUCTURE IS BENT AT THE TWO ATTACHED ADEL CLAMPS, HN00160922 (C-CHECK RO 7/9/2024) INSTALLED AFT ATG ANTENNA'S NEW AFT INTERCOSTAL P/N P16489 IAW CRJ900 SRM 51-42-21-001-001-A01 & GOGO STC STO2541CH DWG P13112-20110 RE - [SDR UIEA2023082500797](https://openairdocs.org/sdr/UIEA2023082500797.md): Unknown · unknown · Aug 25, 2023 · N473MC · Boeing 74745E > BOTH ATC FAILED IN FLIGHT. UNABLE TO ENTER MEXICAN AIRSPACE. DIVERTED TO LAX. ENTERED ON LP 1769776 ITEMS 2 & 3(

LOGBOOK PAGE 1769776 ITEM 2 (ATC-LEFT) R/R LH ATC IAW AMM- 34-53-02. OPS CHECK GOOD.

/

LOGBOOK PAGE 1769776 ITEM 3 (ATC-RIGHT) PERFORMED - [SDR UIEA2022090900949](https://openairdocs.org/sdr/UIEA2022090900949.md): None · none · Sep 9, 2022 · N1511A · Boeing 767383 > LOG BOOK PAGE 1524770: ATC FAULT WITH LH XPONDER SELECTED(

FIM TASK 34-53 FAULT TREE 805 WAS PERFORMED. TEST WAS SATISFACTORY

) - [SDR CALA2022033100850](https://openairdocs.org/sdr/CALA2022033100850.md): None · damaged · Mar 31, 2022 · N810UA · Airbus A319131 > (A3NB-53-4-6134) ADF 1 COVER PLATE HAS 2 EA SCREWS NEED REMOVED (REPAIR AS REQUIRED). 2EA SCREWS DAMAGED ON ADF1 COVER PLATE WERE REMOVED AND AFTER IN VESTIGATION STRINGER CORROSION WAS FOUND, THIS WAS REMOVED AND R EPLACED IAW SRM 51-42-11/001, 51-72-11-911-0 - [SDR P5CA2022012400005](https://openairdocs.org/sdr/P5CA2022012400005.md): Antenna · none · Jan 25, 2022 · N643GT · Boeing 7673JHF > LOWER FUSELAGE. LOWER ATC ANTENNA WITH PEELING PAINT.(

REMOVED / REPLACED LWR ATC ANTENNA M259 & OPS CHECK OK AMM 34-53-03

) - [SDR IPXA2014121285051](https://openairdocs.org/sdr/IPXA2014121285051.md): Adf · inoperative · Dec 10, 2014 · N474UP · Boeing 75724APF > LEFT ADF POINTER DOES NOT POINT PROPERLY ON BOTH RDMI'S. AUDIO IS NORMAL. WINDS WERE OUT OF LIMITS FOR ANY OTHER RUNWAY. HIT BINGO FUEL RETURNED BACK TO DEPARTURE. REPLACED LEFT ADF RECEIVER IAW MM 34-57-01. - [SDR 05FDEA01722](https://openairdocs.org/sdr/05FDEA01722.md): Antenna · delaminated · Jun 28, 2005 · N203FE · Boeing 727200 > NR 1 ADF LOOP ANTENNA IS DELAMINATED. REMOVED AND REPLACED NR 1 ADF ANTENNA IAW MM 34-37-012-4. OPS CHECKED GOOD IAW M/M 34-37-001-5 - [SDR 05FDEA01602](https://openairdocs.org/sdr/05FDEA01602.md): Antenna · corroded · Jun 13, 2005 · N262FE · Boeing 727200 > FWD LOWER FUSE ADF ANT BASE CORRODED. REMOVED AND REPLACED ADF ANTENNA IAW MM 34-37-012-4, OPS CHECKS GOOD. - [SDR 05FDEA01601](https://openairdocs.org/sdr/05FDEA01601.md): Antenna · corroded · Jun 13, 2005 · N262FE · Boeing 727200 > AFT LOWER FUSE ADF LOOP ANT BASE CORRODED. REMOVED AND REPLACED ADF ANTENNA IAW MM 34-37-012-4, OPS CHECKS GOOD. - [SDR BAQA090476](https://openairdocs.org/sdr/BAQA090476.md): Receiver · inoperative · Jan 29, 2003 · N39188 · Bolkms BK117A3 > LOANER - RETURN OF LOANER UNIT S/N 43011 FROM LOANER PO 2-021974-05 REPLACED WITH UNIT BACK FROM REPAIR. - [SDR HEEA082610](https://openairdocs.org/sdr/HEEA082610.md): Receiver · damaged · Dec 11, 2002 · N6607K · Bolkms BO105S > LORAN RECEIVER LARGE KNOB ON LT SIDE HARD TO TURN. IN SHOP REPAIR. - [SDR HEEA079715](https://openairdocs.org/sdr/HEEA079715.md): Receiver · intermittent · May 30, 2002 · N205FC · Bell 206L3 > LORAN SYSTEM LOSES POWER INTERMITTENTLY. REPLACED WITH SERVICEABLE PART. - [SDR HEEA077003](https://openairdocs.org/sdr/HEEA077003.md): Computer · failed · Oct 31, 2001 · N8592X · Bell 206L3 > WILL NOT POWER UP. PENDING VENDOR REPAIR. - [SDR HEEA076430](https://openairdocs.org/sdr/HEEA076430.md): Transceiver · malfunctioned · Oct 3, 2001 > DISPLAY REMAINED BLANK AFTER BEING ON FOR 10 MINUTES AND REMAINED BLANK AFTERWARDS. PENDING VENDOR REPAIR. - [SDR HEEA072651](https://openairdocs.org/sdr/HEEA072651.md): Receiver · failed · Apr 18, 2001 · N8592X · Bell 206L3 > SCREEN GOES BLANK AFTER EXTENDED USE. SUSPECT OVERHEATING DUE TO FAULTY COOLING FAN. - [SDR HEEA072649](https://openairdocs.org/sdr/HEEA072649.md): Receiver · inoperative · Apr 17, 2001 · N8588X · Bell 206L3 > INOPERATIVE. NO DISPLAY. - [SDR HEEA072648](https://openairdocs.org/sdr/HEEA072648.md): Receiver · malfunctioned · Apr 17, 2001 · N8590X · Bell 206L3 > UNABLE TO PUT IN A DIFFERENT WAYPOINT DUE TO KNOB OUT. PERFORMED PRELIMINARY INSPECTION. FOUND S202 SWITCH BROKEN AND RETAINER RING MISSING FROM END OF PULL SCAN KNOB SHAFT. REPLACED S202 SWITCH AND RETAINER RING. REPAIRED. BENCH CHECK GOOD. - [SDR HEEA064759](https://openairdocs.org/sdr/HEEA064759.md): Loran · failed · Oct 13, 1999 · N206LS · Bell 206L3 > LORAN SCREEN IS BLANK. NO DISPLAY AND DATA BASE RACK CLIP BROKEN. - [SDR HEEA063365](https://openairdocs.org/sdr/HEEA063365.md): Receiver · failed · Aug 13, 1999 · N2253E · Bell 206L1 > LORAN LOCKED UP ON WAY POINT MODE. - [SDR 99ZZZX3291](https://openairdocs.org/sdr/99ZZZX3291.md): Vhf Control · contaminated · Jul 30, 1999 · N17238 · Bell 206L3 > MOISTURE GETS TRAPPED UNDER THE HEADER AND CAUSES A SHORT ON THE 180V DC LINE. BURNS THE BOARD AND HEADER. - [SDR HEEA062875](https://openairdocs.org/sdr/HEEA062875.md): Vhf Comm · malfunctioned · Jul 13, 1999 · Bell 206L4 > VHF COMM NAV UNIT WILL NOT TURN OFF. - [SDR HEEA062852](https://openairdocs.org/sdr/HEEA062852.md): Receiver · erratic · Jul 12, 1999 · N205FC · Bell 206L3 > RECEIVER HAD ERRATIC OPERATION. - [SDR HEEA062814](https://openairdocs.org/sdr/HEEA062814.md): Receiver · inoperative · Jul 12, 1999 · N3108E · Bell 206L3 > ARNAV 21 INOPERATIVE. NAV FLAG ON. - [SDR HEEA061706](https://openairdocs.org/sdr/HEEA061706.md): Loran · malfunctioned · Apr 5, 1999 · Bell 206L1 > ARNAV 21 HAD VERY LOW SIGNAL STRENGTH. - [SDR HEEA061600](https://openairdocs.org/sdr/HEEA061600.md): Button · inoperative · Apr 5, 1999 · N31219 · Skrsky S76A > ENTER BUTTON INOPERATIVE. REPLACED RUBBER KEYPAD. REPAIRED. TESTED. FUNCTION CHECK GOOD. - [SDR HEEA060662](https://openairdocs.org/sdr/HEEA060662.md): Receiver · failed · Feb 16, 1999 · N10814 · Bell 206L1 > ARNAV 21 LOCKS UP. - [SDR 99ZZZX1252](https://openairdocs.org/sdr/99ZZZX1252.md): Loran · failed · Jan 27, 1999 · N1140H · Bolkms BK117A3 > DISPLAY ON LORAN FAILING. REMOVED AND REPLACED. - [SDR HEEA060161](https://openairdocs.org/sdr/HEEA060161.md): Receiver · malfunctioned · Jan 22, 1999 · N206FS · Bell 206L3 > RIGHT INSIDE KNOB STEM POWER OUT WITH KNOB ON LORAN. - [SDR HEEA060160](https://openairdocs.org/sdr/HEEA060160.md): Receiver · malfunctioned · Jan 22, 1999 · N27766 · Bell 206L1 > RIGHT OUTER KNOB PULLS OUT BUT DOES NOT SCROLL NUMBERS ON LORAN. - [SDR HEEA0016572](https://openairdocs.org/sdr/HEEA0016572.md): Loran · malfunctioned · Oct 28, 1998 · N107X · Bell 412 > ENTER BUTTON UNREADABLE ON LORAN. - [SDR HEEA0015870](https://openairdocs.org/sdr/HEEA0015870.md): Loran · damaged · Aug 27, 1998 · N230UN · Bell 230 > RIGHT SIDE OF GLASS CRAZED. HARD TO SEE FROM PILOT SEAT. - [SDR HEEA0015136](https://openairdocs.org/sdr/HEEA0015136.md): Loran · failed · Jul 1, 1998 · N22608 · Bell 412 > LORAN HAS NO RELAY AND CODING PULSES BAD. - [SDR HEEA0015101](https://openairdocs.org/sdr/HEEA0015101.md): Loran · malfunctioned · Jul 1, 1998 · N2770Y · Bell 206L1 > LORAN WILL NOT FUNCTION IN NAV MODE. - [SDR HEEA0015100](https://openairdocs.org/sdr/HEEA0015100.md): Loran · malfunctioned · Jul 1, 1998 · N721MB · Bolkms BO105S > MEMORY ON LORAN IS NOT HOLDING. - [SDR HEEA0014904](https://openairdocs.org/sdr/HEEA0014904.md): Receiver · intermittent · Jun 22, 1998 · N3108E · Bell 206L3 > BUTTONS ON LORAN RECEIVER INTERMITTENT, DIM WILL NOT DIM FOR BRIGHT. - [SDR 98ZZZX1977](https://openairdocs.org/sdr/98ZZZX1977.md): Loran · defective · Apr 20, 1998 · N171MU · Bolkms BK117A4 > LORAN LEFT LARGE CONTROL KNOB BINDS AFTER LONG USE AND SMALL LEFT KNOB FALLS OUT. REMOVED AND REPLACED. - [SDR HEEA0013835](https://openairdocs.org/sdr/HEEA0013835.md): Antenna · failed · Apr 2, 1998 · N41791 · Bell 206L3 > LORAN UNIT NOT RECEIVING SIGNAL. - [SDR HEEA0013541](https://openairdocs.org/sdr/HEEA0013541.md): Loran · failed · Mar 26, 1998 > RECEIVER FALLS OFF LINE. - [SDR HEEA0013372](https://openairdocs.org/sdr/HEEA0013372.md): Antenna · failed · Mar 18, 1998 · N513EH · Bell 206L1 > LORAN HAS NO SIGNAL WITH THIS ANTENNA. BAD FROM STOCK. - [SDR HEEA0013180](https://openairdocs.org/sdr/HEEA0013180.md): Loran · failed · Mar 4, 1998 · N721MB · Bolkms BO105S > WHEN SCROLLING IN AUX OR NAV MODE UNIT INTERMITTENTLY LOSES DISPLAY AND STARTS OVER. INTERMITTENT IN CDI MODE. - [SDR HEEA0013130](https://openairdocs.org/sdr/HEEA0013130.md): Loran · failed · Mar 3, 1998 · N5017G · Bell 206L1 > KLN88 NO DISPLAY. - [SDR HEEA0013127](https://openairdocs.org/sdr/HEEA0013127.md): Loran · failed · Mar 3, 1998 · N707AE · Skrsky S76A > LORAN WILL NOT SELF TEST OR ANY FUNCTION LIGHTS WHEN TURNED ON. - [SDR HEEA0012841](https://openairdocs.org/sdr/HEEA0012841.md): Antenna · defective · Feb 5, 1998 · N41791 · Bell 206L3 > ANTENNA WILL NOT PICK UP SIGNAL. INTERMITTENT. - [SDR HEEA0012803](https://openairdocs.org/sdr/HEEA0012803.md): Antenna · failed · Feb 5, 1998 · N2759U · Bell 206L1 > LORAN LOSES SIGNAL. UNIT HAS PREVIOUS WRITE UPS FOR THIS COMPLAINT. - [SDR HEEA0012799](https://openairdocs.org/sdr/HEEA0012799.md): Loran · failed · Feb 5, 1998 · N54191 · Bolkms BO105S > KLN88 NO DISPLAY. Next page: https://openairdocs.org/jasc/3453/reports.md?page=2 ## The whole list in SQL Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS: ```sql SELECT sdr_id, difficulty_date, n_number, aircraft_make, aircraft_model, part_name, part_condition, jasc_code, discrepancy FROM 'https://openairdocs.org/data/latest/faa_service_difficulty_report.parquet' WHERE jasc_code = '3453' ORDER BY difficulty_date DESC ``` This list as a web page: https://openairdocs.org/jasc/3453/reports --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.