# Service difficulty reports: JASC 3454

A list on [JASC 3454](https://openairdocs.org/jasc/3454.md).

Reports filed under 3454 · Visual Omnirange (VOR) System, newest first.

Page 1 of 7 · 317 reports

- [SDR FDEA202606130732](https://openairdocs.org/sdr/FDEA202606130732.md): Transponder · failed · Jun 13, 2026 · N139FE · Boeing 7673S2F
  > TRANSPONDER WAS SMOKING AND SHOWED FAILED. VERIFIED AND CONFIRMED THAT THE ATC PANEL FAILED AND THE SMOKING WAS CONFINED TO THE PANEL ITSELF. VERIFIED NO ASSOCIATED CIRCUIT BREAKERS POPPED. WIRING AND ELCTRICAL CONNECTORS THE ATC PANEL VISUALLY INSPECTED
- [SDR DALA2026060603410](https://openairdocs.org/sdr/DALA2026060603410.md): Switch · shorted · Jun 6, 2026 · N693DL · Boeing 757232
  > FO SIDE VOR/DME AUTO/MAN SWITCH SHORTED WHEN PRESSED. SMOKE CAME OUT MOMENTARILY DURING FLIGHT. REPLACED VOR/DME PANEL IAW AMM 34-51. OPS NORMAL. INSPECTED SURROUNDING AREA NTF. (LP 8359410 - AIRCRAFT WAS GROUNDED)
- [SDR FDEA202407301066](https://openairdocs.org/sdr/FDEA202407301066.md): Transponder · faulted · Jul 30, 2024 · N102FE · Boeing 7673S2F
  > ENROUTE GOT AN ATC FAULT EICAS MESSAGE. CREW REPORT SYSTEM RECOVERED DURING FLIGHT.TESTING IN PROGRESS. FIM: 34-53 FAULT TREE 803, BOTH ATC TRANSPONDERS TESTED PER FIM TASK34-53. FAULT TREE 803. NO FAULTS SHOWN AND BOTH TESTED SATIS. GREEN LED INDICATED AT
- [SDR CALA2024032100817](https://openairdocs.org/sdr/CALA2024032100817.md): Antenna · damaged · Mar 17, 2024 · N68821 · Boeing 737924ER
  > TOP OF VERTICAL STAB DAMAGED. PERORMED STEPS 1 AND 2 OF AVO12217, REFERENCE AMM 55-33-21-000-801 FOR STEP 2. C/W HFEC REF NDT PART 6-51-00-00 PREC 16 AND PROC 23 IAW AVO 12217 STEPS 3 AND 4, NO CRACKS DETECTED. COMPLIED WITH STEP 5 OF AVO12217 IAW AMM 55-33-2
- [SDR HNAA2023121800467](https://openairdocs.org/sdr/HNAA2023121800467.md): Unknown · unknown · Dec 17, 2023 · N637AE · Emb EMB145LR
  > UPON APPROACH TO CLT LOC ERRATIC WITH TEMP LOSS OF LOC SIGNAL. R/R VOR/LOC DIPLEXER AND PHASE COUPLER IAW AMM 34-32-02-000/400-801-A AND 34-32-02-000/400-802-A. OPS CHECK GOOD. R/R #100 VOR/LOC ANTENNA GASKET DUE TO FAILED BINDING CHECK IN REF TO 34-32-03-00
- [SDR VNAA202108191111](https://openairdocs.org/sdr/VNAA202108191111.md): Receiver · malfunctioned · Aug 15, 2021 · N716PS · Cndair CL6002C10
  > VOR 1 AND 2 RED FLAG IN FLIGHT. DME AND IDENTIFIERS STILL DISPLAYED. NO DEFLECTION NEEDLES. / PERFORMED OPS CHECK OF THE VHF NAVIGATION RECIEVER IAW CRJ 700 AMM 34-51-00-710-801-A01. OPS CHECK BAD. SEE NEXT BLOCK FOR FURTHER MX. INTERROGATED MDC FOUND B1-30472
- [SDR RU3A202002107009](https://openairdocs.org/sdr/RU3A202002107009.md): Receiver · failed · Feb 7, 2020 · N66 · Beech 300BEECH
  > ELECTRICAL SMELL NOTED DURING GROUND OPERATION FROM FLIGHT INSPECTION SYSTEM. #2 FLIGHT INSPECTION VOR/ILS RECEIVER FAILED AT SAME TIME ODOR WAS DETECTED.
- [SDR UIEA2019042643954](https://openairdocs.org/sdr/UIEA2019042643954.md): Line · unsecure · Apr 24, 2019 · N1361A · Boeing 76731B
  > ON P61 PANEL E/E COOLING MONITOR GETS NO TEST INDICATION FOR VOR-L. VERIFIED PRESSURE COMING OUT OF SENSE LINE ON L VOR AT COOLING MONITOR PANEL, FOLLOWED FIM TASK 21-58- FT A00 TO SHEET 2 BLOCK 22. TO DETERMINE HOW MUCH PRESSURE IS COMING FROM SENSE LINE.
- [SDR FDEA201811253379](https://openairdocs.org/sdr/FDEA201811253379.md): Transponder · failed · Nov 25, 2018 · N594FE · Doug MD11F
  > PDIS 594 34-54 1175 25NOV18 ATH FACT U LOGPAGES:3042743 AT 1 30 HRS INTO FLIGHT RECIEVER LEVEL 1 TRANSPORNDER 1 FAIL.SWITCHED TO TRANS 2 AND RECIEVED TRNSP 2 FAIL.BOTH TRANSPS INTERMITENTLY FAILED REMAINING FLIGHT. FACT 25NOV18 10:37 A
- [SDR FDEA201803290805](https://openairdocs.org/sdr/FDEA201803290805.md): Transponder · malfunctioned · Mar 29, 2018 · N103FE · Boeing 7673S2F
  > AT FL320, ATC REPORTED TRANSPONDER INDICATED FL 310. TRANSPONDER WAS SET TO LEFT AT THE REPORT. CHANGED TRANSPONDER TO RIGHT AND ATC REPORTED IT TO BE CORRECT. TROUBLESHOT IAW FIM 34-53-00 FT 803, FIG 103. PERFORMED A LEFT ATC SYSTEM BITE. TEST PAS
- [SDR Z1RA761039112017](https://openairdocs.org/sdr/Z1RA761039112017.md): Vor System · failed · Nov 20, 2017 · N761AF · Skrsky S76D
  > #2 NAV HAS FAILURE CODE WHEN ON FREQS ABOVE 109
- [SDR FDEA201702240655](https://openairdocs.org/sdr/FDEA201702240655.md): Control Panel · failed · Feb 24, 2017 · N113FE · Boeing 7673S2F
  > ON TAXI OUT THE TRANSPONDER RESET ITSELF TO 0000. PUT ASSIGNED CODE BACK IN. DURING CLIMBOUT ATC REPORTED A 600' DISCREPENCE BETWEEN OUR ALTITUDE AND THER RADAR, SWITCHED TRANSPONDERS AND THAT DID NOT HELP. SHUT OFF THEN ON, THEN IT WORKED. REMOVER AND
- [SDR AALA20170214022](https://openairdocs.org/sdr/AALA20170214022.md): Receiver · faulty · Feb 14, 2017 · N921AN · Boeing 737823
  > AIRCRAFT WAS GROUNDED. EMERGENCY DECLARED. DURING CLIMB THE LNAV/VNAV BECAME UNRESPONSIVE. AUTOPILOT DROPPED IN CWS MODE. RETURNED TO CLT. ACCOMPLISHED BITE CHECK OF VOR 1 RECEIVER IAW FIM 22-11-00. REMOVED AND REPLACED VOR 1 RECEIVER IAW AMM 34-51-01. SYSTEM
- [SDR QXEA2017013000034](https://openairdocs.org/sdr/QXEA2017013000034.md): Antenna · faulty · Jan 30, 2017 · N435QX · Bombdr DHC8402
  > BOTH VHF NAV 1 & 2 WOULD NOT RECEIVE. NO IDENTS OR NEEDLES. DME DISPLAYED WITHOUT IDENT. ON RETURN TO PDX DURING DESCENT BELOW 20,000' BOTH VHF NAVS BEGAN TO RECEIVE AND DISPLAY BTG WITH VERY FAINT IDENT. LANDING WEIGHT LESS THAN #62000. REMOVED AND REPLACED L
- [SDR HALA2017012500015](https://openairdocs.org/sdr/HALA2017012500015.md): Vor System · malfunctioned · Jan 25, 2017 · N590HA · Boeing 767332
  > UNABLE TO RECEIVE VOR AZMUTH ON EITHER MX VOR UNTIL WITH IN 60 NM OF STATION VOR RESET VOR 1 & 2 OPS CHECKED SYS GOOD ON GROUND IAW AMM 34-51-00, OK FOR SERVICE. NO DEFECTS NOTED. AVIONICS PERFORMED A BITE CHECK OF LT AND RT VOR COMPUTERS WITH NO DEFECTS N
- [SDR DALA2016110208144](https://openairdocs.org/sdr/DALA2016110208144.md): Access Panel · corroded · Aug 4, 2016 · N959AT · Boeing 717200
  > CORROSION ON ACCESS PANEL 370JL VOR / LOCALIZER ANTENNA PANEL. UPPER LT VOR / LOCALIZER ANTENNA PANEL WAS REPLACED IAW AMM 34-32-03 AND TEST WAS PERFORMED IAW AMM 34-35-01. TEST OK.
- [SDR DALA2016110208143](https://openairdocs.org/sdr/DALA2016110208143.md): Access Panel · corroded · Aug 4, 2016 · N959AT · Boeing 717200
  > CORROSION ON ACCESS PANEL 370DL VOR/LOCALIZER ANTENNA PANEL. LOWER LT VOR/LOCALIZER ANTENNA PANEL WAS REPLACED IAW AMM 34-32-03 AND TEST WAS PERFORMED IAW AMM 34-35-01. TEST OK.
- [SDR YENA20160118033](https://openairdocs.org/sdr/YENA20160118033.md): Receiver · failed · Jan 18, 2016 · N630JB · Airbus A320232
  > FLT 1488, NOTICIED NR 1 VOR RED ON MFD, STARTED SMELLING A FAINT BURNING ODOR, THE CIRCUIT BREAKER TRIPPED MESSAGE APPEARED AND CIRCUIT BREAKER G13 TRIPPED. SMOKE ODOR WENT AWAY, FOLLOWED TSM 34-55-00 AND CONFIRMED THE NR 1 VOR RECEIVER FAULTY. REMOVED AND R
- [SDR RAIA201409080001](https://openairdocs.org/sdr/RAIA201409080001.md): Antenna · failed · Sep 8, 2014 · N832HK · Emb EMB145LR
  > NR 1 AND 2 VOR LOCALIZERS VERY ERRATIC WITH FULL DEFLECTIONS L/R NEAR LANDING MINIMUMS. MAINTENANCE INSPECTED AND REPLACED LT VOR ANTENNA, OPS CHECK GOOD.
- [SDR HYIA20140523003](https://openairdocs.org/sdr/HYIA20140523003.md): Indicator · separated · May 21, 2014 · N781EA · Cessna 402C
  > ELEVATOR JAMMED ON TAKEOFF, COULD NOT PULL YOKE BACK TO ROTATE. VOR 2 INDICATOR CASE DROPPED ONTO THE CONTROL YOKE PREVENTING FULL REARWARD TRAVEL. TAKEOFF WAS ABORTED WITH NO FURTHER INCIDENT. FOUND VOR INDICATOR BACK CASE SEPARATED FROM FRONT OF INDICATOR
- [SDR SIMA20140108005](https://openairdocs.org/sdr/SIMA20140108005.md): Unknown · malfunctioned · Jan 8, 2014 · N644AE · Emb EMB145LR
  > ON FLIGHT 3266 DURING APPROACH CREW REPORTED LOST BOTH LOCALIZER SIGNALS & BOTH GPS SIGNALS FOR LATERAL GUIDANCE. THE ACFT WAS REMOVED FROM SERVICE. BOTH NR 1 AND NR 2 LOCALIZERS OPERATIONAL CHECK GOOD IAW EMB145 AMMK 34-32-00.
- [SDR CHQA20131229468](https://openairdocs.org/sdr/CHQA20131229468.md): Unknown · malfunctioned · Dec 29, 2013 · N567RP · Emb EMB145LR
  > CREW REPORTED THE LOCALIZER LIST SIGNAL ON APPROACH TO KLGA. THE CREW DIVERTED TO KBDL & LANDED WITHOUT INCIDENT. THE CREW FURTHER NOTED NO LOCALIZER ISSUES ON APPROACH TO KBDL. MX PERFORMED OPERATIONAL CHECKS OF THE VOR LOCALIZER SYS WITH NO DEFECTS NOTED
- [SDR CALA2013102192217](https://openairdocs.org/sdr/CALA2013102192217.md): Transceiver · faulty · Oct 19, 2013 · N651UA · Boeing 767322
  > CAPTAIN VOR INOPERATIVE. LT VOR TRANSCEIVER REPLACED IAW AMM. ALL CHECKED GOOD.
- [SDR SIMA20130503006](https://openairdocs.org/sdr/SIMA20130503006.md): Antenna · malfunctioned · May 3, 2013 · N923AE · Emb EMB145LR
  > ON FLIGHT 4239 THE CREW REPORTED THEY LOST LOCALIZER SIGNAL ON TWO ATTEMPTS OF ILS 10L IN ORD WHILE ESTABLISHED INBOUND. UNABLE TO ID NAVAID. NO OTHER AC REPORT PROBLEMS. DEFERRED BOTH ILS LOCALIZERS IAW MEL 34-15 AUTH#050119D. THE CREW DECLARED AN EMERGE
- [SDR UALA2013041802660](https://openairdocs.org/sdr/UALA2013041802660.md): Receiver · faulted · Apr 17, 2013 · N674UA · Boeing 767322
  > CAPTAIN`S RIGHT NAV HAS OFF FLAG. FAULT TRACED TO RT VOR RECEIVER. RT VOR RECEIVER REPLACED IAW AMM. RT VOR RECEIVER BITE ACCOMPLISHED. SATISFACTORY.
- [SDR CHQA20130409108](https://openairdocs.org/sdr/CHQA20130409108.md): Antenna · failed · Apr 9, 2013 · N282SK · Emb EMB145LR
  > DURING APPROACH, CREW REPORTED ILS 1 AND 2 ERRATIC. DIVERTED AND LANDED WITHOUT INCIDENT. VOR/ILS STABILIZER ANTENNA 1 AND 2 WERE REPLACED. OPS CHECKED GOOD.
- [SDR JJBA20121103003](https://openairdocs.org/sdr/JJBA20121103003.md): Button · stuck · Nov 3, 2012 · N366PH · Dhav DHC8202
  > DURING CRUISE, CREW REPORTED THAT BOTH TRANSPONDERS WERE DISPLAYING A "DIAG" MESSAGE. NEITHER TRANSPONDER WAS TRANSMITTING. GROUND MX CREW DISCOVERED THE TRANSPONDER HEAD CONTROL HAD THE TEST BUTTON STUCK. MX CLEANED THE BUTTON AND PERFORMED AND OPS CHECK
- [SDR DALA12007576818](https://openairdocs.org/sdr/DALA12007576818.md): Control Panel · odor · Sep 18, 2012 · N624AG · Boeing 7572Q8
  > AIR RETURN BACK TO DEPARTURE DUE TO BURNING ELECTRIC ODOR IN THE FLIGHT DECK AND CABIN. FOUND VOR/DME CONTROL PANEL WITH ELECTRICAL ODOR. R & R PANEL, CHECKED OK.
- [SDR VNAA2012052100018](https://openairdocs.org/sdr/VNAA2012052100018.md): Receiver · malfunctioned · May 21, 2012 · N216PS · Cndair CL6002B19
  > CREW REPORTED VOR AND FD’S (FLIGHT DIRECTOR) BOTH FLASHING, TURNING RED AND DISAPPEARING FROM DISPLAYS. MULTIPLE VOR’S AND NAV SOURCES WERE TRIED, WITH NO CHANGE. CREW RETURNED TO FIELD AND LANDED WITHOUT INCIDENT. MAINTENANCE TROUBLESHOT, REMOVED AND REPLA
- [SDR SIMA201200304](https://openairdocs.org/sdr/SIMA201200304.md): Vor System · malfunctioned · Dec 31, 2011 · N713AE · Emb EMB135LR
  > THE CREW REPORTED THAT ON THE CLIMBOUT NOTICED THE NUMBER 2 VOR WAS OFF BY 180 DEGREES AND COULD NOT VERIFY WHICH ONE WAS CORRECT. THE AIRCRAFT LANDED WITHOUT INCIDENT. THE AIRCRAFT WAS REMOVED FROM SERVICE. PERFORMED OPERATIONAL TEST IAW AMM 34-32-00 WAS G
- [SDR RAIA201112050001](https://openairdocs.org/sdr/RAIA201112050001.md): Antenna · malfunctioned · Dec 5, 2011 · N806HK · Emb EMB145EP
  > DURING CRUISE BOTH VOR SYSTEMS BECAME ERRATIC. FLIGHT CREW DECLARED AN EMERGENCY AND PREFORMED AN EMERGENCY LANDING. MAINTENANCE INSPECTED THE AIRCRAFT AND REMOVED AND REPLACED THE RIGHT VOR/LOC ANTENNA. SYSTEMS OPS CHECKED GOOD.
- [SDR UALA2011101005480](https://openairdocs.org/sdr/UALA2011101005480.md): Rmi · inoperative · Oct 7, 2011 · N675UA · Boeing 767322
  > AFTER JET BRIDGE PULLED, CREW REPORTS CAPTAIN'S RMI INOP. REPLACED RMI, OPS NORMAL.
- [SDR HALA2011091200402](https://openairdocs.org/sdr/HALA2011091200402.md): Vor System · malfunctioned · Sep 12, 2011 · N583HA · Boeing 76733A
  > ETOPS SIGNIFICANT SYS -VOR LT DID NOT TEST NORMAL DURING E/E COOLING MONITOR TEST. OPS CHECKED IAW AMM21-58-34-702-025, NO DEFECTS NOTED, OK FOR SERVICE.
- [SDR DALA1147970641](https://openairdocs.org/sdr/DALA1147970641.md): Control Panel · shorted · Aug 15, 2011 · N641DL · Boeing 757232
  > SMOKE-FUMES EMITTED FROM THE VOR/DME CONTROL PANEL. MAINTENANCE INSPECTED WIRING AND REPLACED THE CONTROL PANEL. OPERATIONAL CHECK WAS GOOD.
- [SDR HALA2011081500366](https://openairdocs.org/sdr/HALA2011081500366.md): Receiver · inoperative · Aug 15, 2011 · N590HA · Boeing 7673CB
  > ETOPS SIGNIFICANT SYS - VOR 1 FLAG DISPLAYED ON BOTH RMI'S. FOUND NO POWER TO NR1 VOR RECEIVER. RERACKED NR1 VOR AND OPS CK NR1 VOR IAW AMM 34-51-00. ALL TEST PASSED. OK FOR SERVICE.
- [SDR COEA2011032462805](https://openairdocs.org/sdr/COEA2011032462805.md): Plate · corroded · Mar 24, 2011 · N805FX · Aerosp ATR72212
  > HEAVY CK COE / LEVEL 2 CORROSION: RT VOR ANTENNA MOUNT PLATE HAS CORROSION ON BOTH SIDES (LENGTH 1.75", WIDTH.750", DEPTH.016"). REMOVED AND REPLACED VOR MOUNT PLATE IAW ATR72 JIC.
- [SDR C2XA11TY015](https://openairdocs.org/sdr/C2XA11TY015.md): Coupler · broken · Feb 11, 2011 · N15985 · Emb EMB145LR
  > EN ROUTE, WHEN CREW RECEIVED A MESSAGE FROM THE VOR/ILS. CDI NEEDLE SHOWING A FULL SCALE DEFLECTION TO LT AND RT, MISSING APPROACH ON 2 OCCASIONS AND LANDED. ACFT FERRIED. MAINTENANCE REMOVED AND REPLACED THE LOWER VOR ANTENNA COUPLER IAW AMM 34-32-03. OPS C
- [SDR CHQA201000226](https://openairdocs.org/sdr/CHQA201000226.md): Antenna Lead · contaminated · Dec 9, 2010 · N373SK · Emb EMB135KL
  > ON APPROACH TO RUNWAY 14L IN ORD, THE CREW WAS UNABLE TO RECEIVE LOCALIZER SIGNALS WITH BOTH RADIOS FROM 20 NAUTICAL MILES OUT. THE FLIGHT DIVERTED TO MKE IN ORDER TO PERFORM AN RNAV APPROACH AND WAS ABLE TO RECEIVE LOCALIZER SIGNALS WHEN WITHIN 10 NAUTICAL M
- [SDR HALA2010111500537](https://openairdocs.org/sdr/HALA2010111500537.md): Control Panel · malfunctioned · Nov 15, 2010 · N581HA · Boeing 76733A
  > ETOPS SIGNIFICANT SYS - LT VOR DME INOP. REPLACED LT VOR/DME CONTROL PANEL IAW AMM 34-51-02, GND CHECK OK.
- [SDR HALA2010100300449](https://openairdocs.org/sdr/HALA2010100300449.md): Vor System · inoperative · Oct 3, 2010 · N590HA · Boeing 7673CB
  > ETOPS SIGNIFICANT SYS - F/O RMI NR 2 VOR FLAG IN VIEW. DME OK. UNABLE TO DUPLICATE. NO FLAG NOT IN VIEW AT THIS TIME.
- [SDR FDEA201008203055](https://openairdocs.org/sdr/FDEA201008203055.md): Receiver · failed · Aug 20, 2010 · N244FE · Boeing 727277
  > VOR'S CHECKED GOOD ON PREFLIGHT. DURING CLIMBOUT BOTH VOR'S SHOWED A 30 DEGREE SPLIT ON VOR STA COULD NOT CTR EITHER CDI ON VOR STATION. TRIED ANOTHER VOR STA, SAME SITUATION. BOTH RMI'S HAD VOR NEEDLES 30 - 40 ' SPLIT. COMPASS SYS MATCHED. HAD TO RELY ON AT
- [SDR C2XA09IA309](https://openairdocs.org/sdr/C2XA09IA309.md): Rmu · malfunctioned · Dec 8, 2009 · N14203 · Emb EMB145XR
  > DLH - FLIGHT 2593 FROM IAH TO OMA DIVERTED TO DLH AFTER RMU 1 & AT NAV'S DASHED OUT IN FLIGHT. THE AIRCRAFT LANDED AT DLH WITHOUT INCIDENT WHERE THE SYSTEM WAS RESET, OPERATIONALLY TESTED WITH NO DEFECTS, AND THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE.
- [SDR UALA2009101203201](https://openairdocs.org/sdr/UALA2009101203201.md): Control Panel · malfunctioned · Oct 11, 2009 · N552UA · Boeing 757222
  > ELECTRICAL ODOR IN COCKPIT, FLIGHT DIVERTED. CREW REPORTED ELEC ODOR ON CAPT SIDE AROUND THE AREA OF GLARE SHIELD. INSPECTED FWD AND CENTER E&E COMPARTMENTS. FOUND NO BREAKERS OUT OR ANY ELECTRICAL ODOR. REMOVED CAPT VOR CONTROL PANEL, HAD SLIGHT BURN ODOR
- [SDR GLBA20090408B](https://openairdocs.org/sdr/GLBA20090408B.md): Vor System · inoperative · Apr 8, 2009 · N218YV · Beech 1900D
  > PILOTS REPORTED THAT THE NR 2 NAV RADIO WAS INOPERATIVE AND RETURNED TO DEN. MAINTENANCE REMOVED AND REPLACED THE VOR-ILS RECEIVER IAW MM 34-20-00. OPERATIONAL CHECK WAS GOOD.
- [SDR SWIA200819772](https://openairdocs.org/sdr/SWIA200819772.md): Radio · malfunctioned · Jun 9, 2008 · N296SW · Emb EMB120ER
  > BOTH NAV RADIOS WENT INOP. REPLACED FIRST OFFICERS VIR32 AND VOR ANTENNA COUPLER. OPERATIONAL CHECKS ARE GOOD.
- [SDR HNAA0800142](https://openairdocs.org/sdr/HNAA0800142.md): Receiver · failed · Apr 22, 2008 · N935HA · Dhav DHC8102
  > ON APPROACH INTO CLT NR 1 NAVIGATION RECEIVER FAILED FOLLOWED BY A STRONG ODOR. REMOVED AND REPLACED NR 1 NAV RECEIVER IAW 34-55-05. RAMP CHECK GOOD.
- [SDR AMWA89978](https://openairdocs.org/sdr/AMWA89978.md): Control Head · smoke · Feb 6, 2008 · N167YV · Beech 1900D
  > DURING SHORT FINAL APPROACH, SMOKE WAS DETECTED COMING OUT OF THE NR1 NAV CONTROL HEAD. THE NR1 NAV CB'S WERE PULLED, THE SMOKE STOPPED AND AC LANDED WITHOUT FURTHER INCIDENT. MAINT REMOVED AND REPLACED CONTROL HEAD AND CLEARED DISCREPANCY. SUBSEQUENT TEARDOWN
- [SDR UPS08651393](https://openairdocs.org/sdr/UPS08651393.md): Switch · malfunctioned · Jan 11, 2008 · N311UP · Boeing 76734AF
  > INSPECTION TYPE:ETOP VOR/DME AUTO MAN SELECTOR SWITCH DIDN'T ILLUM ON F/O SIDE WHEN PUSHED SMOKE CAME OUT FROM UNDER GLARESHIELD ON RIGHT SIDE OF VOR. RAN SMOKE FIRE ELEC CHECKLIST. FOUND SWITCH BURNED OUT REMOVED AND REPLACED VOR CONTROL PANEL, OPS CHECK OK
- [SDR DL757071575](https://openairdocs.org/sdr/DL757071575.md): Receiver · failed · Nov 30, 2007 · N633DL · Boeing 757232
  > CREW REPORTED ELECTRICAL FUMES IN FLIGHT. RIGHT VOR C/B WAS FOUND POPPED AND WOULD NOT RESET. RT VOR RECEIVER WAS FOUND TO HAVE STRONG ELECTRICAL SMELL AND SIGNS OF FAILURE.
- [SDR BB07089](https://openairdocs.org/sdr/BB07089.md): Control Panel · failed · Nov 9, 2007 · N251AY · Boeing 7672B7
  > FLIGHT 811, PHL-CUN: AFTER TAKEOFF, CREW REPORTED LOSS OF L-NAV. RETURNED TO FIELD. MAINTENANCE REPLACED THE VOR/DME CONTROL PANEL. NO FURTHER FAULTS.

Next page: https://openairdocs.org/jasc/3454/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 = '3454'
ORDER BY difficulty_date DESC
```

This list as a web page: https://openairdocs.org/jasc/3454/reports

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