JASC 3397

Service difficulty reports · 22,648

Reports filed under 3397 · Light System Wiring, newest first.

Query with SQL
duckdb -csv -c "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 = '3397'
  ORDER BY difficulty_date DESC"

Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.

SDR AALA202609112954Wire Harness · damagedAIRCRAFT WAS NOT GROUNDED: EMERGENCY EXIT FLOOR LIGHTS BETWEEN ROW 16-17 LH SIDE NOT ILLUMINATING. REMOVED AND REPLACED SEAT TO SEAT CABLE HARNESS BETWEEN 16ABC AND 17ABC.Sep 9, 2026 · N973AN · Boeing 737823SDR CALA2026090919327Elec Connector · miswiredFIRST CLASS EMERGENCY LIGHTING ON SEAT ASSEMBLIES NOT ILLUMINATING WHEN SELECTED ON. FOUND WIRES INSTALLED INCORRECTLY BETWEEN FIRST CLASS EEPL WALL CONNECTOR TO 1AB. REMOVED AND REPINNED CONNECTOR TO CORRECT LOCATIONS, IAW DRAWING 3351DD16479 AND WDM 33-51-Sep 8, 2026 · N17272 · Boeing 7378SDR U2RA2026090700056Wire · not reportedDEVIATIATED FROM SERVICE BULLETIN FOR FRAME NOT BEING INSTALLED ON AIRCRAFT. REPAIRED AND FOLLOWED INSTRUCTIONS FORM BOEING MUA-MUA-26-13CSep 7, 2026 · N756CA · Boeing 747428SDR YENA2026091100796Elec Connector · damagedDURING HEAVY MAINTENANCE,REF. AAR-LCQ WO # 440624 N/R 30774 - EMERGENCY LIGHT IN CABIN CEILING PANEL 251JC HAS BROKEN WIRE; (RESOLVED ON W/O: 1473121 TASKCARD: NR-00040 ) PER AAR-LCQ WO# 440624 N/R 30774 - REPLACED EMERGENCY LIGHT CONNECTOR TERMINAL AND OPS CSep 7, 2026 · N633JB · Airbus A320232SDR DXTA2026090809597Elec Connector · misinstalledDURING PREFLIGHT, THE VERTICAL "EXIT" SIGN ON THE FRONT OF THE LAV DID NOT COME ON WITH THE EMER LIGHT SWITCH IN ANY POSITION. IT DID FINALLY COME WITH THE INTERIOR POWER SWITCH, AND OFF WITH SAME. ALL OTHER EMERY LIGHTS SEEM TO FUNCTION PROPERLY. DISCREPANCY Sep 7, 2026 · N504QS · Cessna 680ASDR DXTA2026090909592Elec Connector · disconnectedTHE EXIT SIGN ON THE AFT SIDE OF THE FORWARD LEFT CABIN DIVIDER DOES NOT ILLUMINATE WITH THE REST OF THE EMERGENCY LIGHTS. TROUBLESHOT SYSTEM IAW WDM 33-50-01 AND FOUND CONNECTOR FOR LIGHT DISCONNECTED. OPS CHECKS GOOD AT THIS TIME.Sep 6, 2026 · N866QS · Textrn TEXTRON700SDR CALA2026090719285Wire Splice · disconnected21AB EMERGENCY CEILING LIGHT FOUND NOT ILLUMINATING. LIGHT FOUND SPLICES SNAPPED. SPLICES REPLACED AND TEST CARRIED OUT NORMAL IAW AMM 33-51-04, AND SWPM 20-30-12.Sep 6, 2026 · N657UA · Boeing 767322SDR DALA2026090805041Wire Harness · misroutedFOUND EMER LIGHTS ROW 19-22 INOP. FOUND WIRE HARNESS ROUTED WRONG UNDER SEAT TRACK. MOVED HARNESS TO CORRECT ROUTING AND R/R EMER BATTERY M1671 PER B737 AMM 33-51 . SEATS OPS CHECK GOOD. (9442897) AIRCRAFT WAS GROUNDEDSep 6, 2026 · N3738B · Boeing 737832SDR CALA2026090819313Wire · disconnectedFWD LT CABINET AFT MOST EMERGENCY PATHWAY LIGHT OUT. FOUND WIRES DISCONNECTED FROM THE CONNECTOR. INSTALLED NEW PINS AND RECONNECTED. OPS CHECK GOOD. REF. 33-51-00.Sep 6, 2026 · N66841 · Boeing 737924ERSDR AALA202609147009Wire · damagedAIRCRAFT IN BASE MAINTENANCE: 33 ABC ELECTRICAL CONNECTOR FOR THE EMERGENCY LIGHTING HAS WIRE THAT HAS BEEN CUT NEAR CONNECTOR NEEDS REPAIRED. TERMINATED NEW CONTACTS AND INSTALLED CONNECTOR IAW SWPM 20-61-28. PERFORMED CHECK OF EMERGENCY LIGHTS IAW AMM 33-5Sep 5, 2026 · N308RD · Boeing 7378SDR DALA2026091105084Elec Connector · faultedSEAT 20 B EMERGENCY LIGHT INOPERATIVE. RE-SEATED EMERGENCY PATHWAY LIGHT ELEC CONNECTOR AT SEAT 20B. OPS TESTED OK. IAW AMM 33-51. OK FOR SERVICE.Sep 5, 2026 · N568DZ · Airbus A350941SDR AALA202609074628Wire · brokenAIRCRAFT WAS GROUNDED: SEAT 18 MOUNTED EMERGENCY AISLE LIGHT (WHITE) INOPERATIVE - MAINTENANCE REPAIRED BROKEN WIRE AT CONNECTOR 7261VC1 AND ACCOMPLISHED A SATISFACTORY OPERATIONAL CHECKSep 5, 2026 · N423AN · Airbus A321253NXSDR AALA202609087205Elec Connector · crackedAIRCRAFT WAS NOT GROUNDED: OVERWING EXIT MIDDLE CEILING EMER LIGHT INOP. FOUND ELECTRICAL CONNECTOR ON AIRCRAFT SIDE CRACKED CAUSING LOOSE CONNECTION AND LIGHT TO UNPLUG. REPLACED CONNECTOR PER SWPM 20-61-28.Sep 4, 2026 · N845NN · Boeing 737823SDR DALA2026090805018Wire · brokenSEAT 33 EMER LIGHT INOP. FOUND BROKEN WIRE UNDER SEAT. RETERMINATED PIN REF A320 ESPM 20 -48. OPS CK GOOD. (LP: 9490418, AIRCRAFT WAS GROUNDED)Sep 3, 2026 · N344NW · Airbus A320212SDR DALA2026090404994Wire · damagedSEAT 31B EMERGENCY ESCAPE PATH MARKER LIGHT INOPERATIVE. REPAIRED WIRING IAW AMM 33-51. (9320742) AIRCRAFT WAS GROUNDED.Sep 3, 2026 · N858NW · Airbus A330223SDR DALA2026090304981Wire · damagedEMERGENCY LIGHT AT SEAT 50JH INOPERATIVE. REPAIRED WIRING IAW AMM 33-51. OK FOR SERVICE. (9319280) AIRCRAFT WAS GROUNDED.Sep 3, 2026 · N404DX · Airbus A330941SDR DALA2026091105085Elec Connector · disconnectedDURING CABIN WALK AROUND FOUND MULTI SEAT-MOUNTED LIGHTS INOPERATIVE. T/S IAW AWM 33-51-XX-00000-059A-A. FOUND CONNECTOR AT 541WL43 DISCONNECTED. RECONNECTED AND TESTED IAW AMM 33-51. NOW ALL EMERGENCY LIGHTS WORK NORMALLY. MEL AND PLAC REMOVED. (LP# 1789817Sep 1, 2026 · N505DN · Airbus A350941SDR AALA202609144770Wire · unsecureAIRCRAFT IN BASE MAINTENANCE: SEAT 13C EMERGENCY LIGHTING MODULE WIRING UNSECURED. PROPERLY SECURED WIRING IAW SWPM 20-10-11.Aug 31, 2026 · N339TP · Boeing 7378SDR AALA202609030571Contact · pulledAIRCRAFT IN BASE MAINTENANCE: EMERGENCY EXIT LIGHT AT L1 DOOR CONTACT PULL FROM TERMINAL JUNCTION MODULES. MAINTENANCE REPAIRED THE EMERGENCY EXIT LIGHT AT L1 DOOR IAW ESPM 20-48-25-0101 AND ACCOMPLISHED A SATISFACTORY OPS CHECK WITH NO ISSUES NOTEDAug 31, 2026 · N9025B · Airbus A319115SDR AALA202609026179Elec Connector · disconnectedAIRCRAFT WAS NOT GROUNDED: SEAT 21ABC WHITE SEAT MOUNTED EMERGENCY AISLE LIGHT DOES NOT TURN ON - MAINTENANCE FOUND CONNECTOR UNPLUGGED FOR SEAT 21ABC MOUNTED EMERGENCY AISLE LIGHT AND RECONNECTED IT - A SATISFACTORY OPERATIONAL CHECK WAS ACCOMPLISHED WITH NO Aug 31, 2026 · N580UW · Airbus A321231SDR AALA202609022638Elec Connector · not seatedAIRCRAFT WAS NOT GROUNDED: SEAT 22ABC WHITE SEAT MOUNTED EMERGENCY AISLE LIGHT DOES NOT TURN ON - MAINTENANCE FOUND CONNECTOR NOT FULLY SEATED FOR SEAT 22ABC MOUNTED EMERGENCY AISLE LIGHT AND RECONNECTED IT - A SATISFACTORY OPERATIONAL CHECK WAS ACCOMPLISHED WAug 31, 2026 · N580UW · Airbus A321231SDR SWAA2026090889068Elec Connector · unsecureLEFT EMERGENCY LIGHT, SEAT ROW 8 ABC INOPERATIVE. SECURED THE ELECTRICAL CONNECTOR IAW AMM 33-51-03. TESTED GOOD.Aug 30, 2026 · N8706W · Boeing 7378SDR AALA202609028503Wire · disconnectedAIRCRAFT WAS NOT GROUNDED: EMERGENCY LIGHT AT SEAT ROW 4AC INOPERATIVE - MAINTENANCE RECONNECTED WIRE AT SEAT ROW 4AC PER ESPM 20-44-91 AND ACCOMPLISHED A SATISFACTORY OPERATIONAL CHECK WITH NO ISSUES NOTEDAug 30, 2026 · N536UW · Airbus A321231SDR SWAA2026083133455Wire · brokenEMERGENCY EXIT LIGHT AT FWD LEFT DOOR INOPERTIVE. INSPECTED AND FOUND BROKEN WIRE BEHIND TOILET ASSEMBLY WIRE # W4142-0152-20. PER WDM 33-51-21-26 THIS IS THE GROUND WIRE FOR FWD ENTRY LOWER EMERGENCY LIGHT. REPAIRED WIRE W4142-0152-20 PER SWPM 20-20-10 EMER OAug 30, 2026 · N7752B · Boeing 7377BDSDR DALA2026083104908Wire · chafedEMERGENCY LIGHT OUT MULTIPLE LOCATIONS AND HAS 11WL FAULT ON TEST. FOUND EMERGENCY LIGHT POWER WIRE CHAFED AT 37ABC. REPAIRED WIRE AND REPLACED POWER SUPPLY EPSU 11WL REF A321 AMM 33-51-38. TESTS GOOD. OK FOR SERVICE. (LP 8819594 - AIRCRAFT WAS GROUNDED)Aug 30, 2026 · N103DY · Airbus A321211SDR CALA2026083119047Ground Wire · detachedEMERGENCY EXIT SIGN ABOVE RT OVERWING EXIT, FOUND INOPERATIVE. RT EMER EXIT DOOR EMER EXIT SIGN FOUND GND WIRE SNAPPED FROM THE TERMINAL LUG. WIRE AND TERMINAL LUG RECRIMPED AND TESTED NORMAL REM. SWPM 20-30-11 AND AMM 33-51-01. WIRE AND TERMINAL LUG RECRIMPAug 30, 2026 · N653UA · Boeing 767322SDR AALA202609014348Wire · brokenAIRCRAFT IN BASE MAINTENANCE: ROW 33A AT WALL EMERGENCY LIGHTING WIRE BROKEN. MAINTENANCE REPAIRED WIRE AT ROW 33A PER ESPM 20-53-29, EMERGENCY LIGHT TESTED NORMAL PER AMM 33-50-00.Aug 28, 2026 · N303NY · Airbus A321253NXSDR SWAA2026083115125Wire · damagedLEFT AFT MULTIPLE EMERGENCY LIGHTS STAY ON WHEN SWITCH IS IN ARMED POSITION. R & R LT AFT BATTERY PACK AND POWER SUPPLY IAW AMM 33-51-06 NO HELP. FOUND WIRE W3142-0042-20 DAMAGED ABOUT 4 FT FROM SM2 IAW WDM 33-51-11. REPAIRED WIRE PER SWPM 20-10-11. PERFORMEAug 28, 2026 · N8329B · Boeing 7378H4SDR SWAA2026092890492Wire · brokenBROKEN WIRE FOUND AT BS 500C, S11L. REPAIRED THE WIRE W3142-0503 22 IAW SWPM 20-10 20-30, AND WDM 33-51-11. PERFORMED GOOD CONTINUITY CHECK FROM CONNECTOR D13018 TO CONNECTOR D40096P W1342-0503-22 IAW WDM33-51-11, PAGE 11, SHEET 1, AND PERFORMED GOOD OPS TEAug 27, 2026 · N8643A · Boeing 7378H4SDR SWAA2026090790305Wire · pulledSPLICE AT EXIT INDICATOR LIGHT LO1191 HAS PULLED WIRE. TERMINATED D10086. CONNECTOR OF EXIT IND LIGHT L01191. IAW SWPM 20-61-12. AND GOOD OPS TEST OF EMERGENCY LIGHTS IAW AMM 33-51-00. CARD COMPLETE.Aug 27, 2026 · N8551Q · Boeing 7378H4SDR DALA2026090104935Elec Connector · not seatedON A SERVICE CHK, FOUND SEATS 20 H/J AND 21 H/J EMERGENCY LIGHTS INOPERATIVE. DEFERRED TO MEL 33-50-07A, PLACARD INSTALLED. NO M PROCEDURES. OK FOR SERVICE. RE SEATED CONNECTOR AT 542WL43. NOW CHECKS OK PER A350 AMM 33-51. MEL AND PLACARD REMOVED. (LP 931717Aug 27, 2026 · N503DN · Airbus A350941SDR AALA202608316150Wire · misinstalledAIRCRAFT WAS GROUNDED: EXIT SIGN OVER DOOR 4L DOES NOT ILLUMINATE - MAINTENANCE IDENTIFIED INCORRECT WIRE CONNECTIONS AND CORRECTED WIRING AT 7222VT MODULAR TERMINAL BLOCKS. SWAPPED WIRE H WITH WIRE D ON MODULAR TERMINAL BLOCK 7 AND TRANSFERRED WIRE FROM MODULAug 27, 2026 · N410AN · Airbus A321253NXSDR HNAA2026082800810Wire · chafedWIRE FOR EMERGENCY LIGHT STRIP, ROWS 8 & 9 CHAFED BELOW THE MALE CONNECTOR. R & R THE CONNECTOR AND SOCKET RIGHT PAST THE CHAFED AREA IAW SWRM 20-21-00.Aug 27, 2026 · N905JH · Emb EMB145LRSDR DALA2026090104934Elec Connector · misinstalledEMERGENCY LIGHT AT SEAT 8A INOPERATIVE. DEFERRED TO MEL 33-50-07A. CONFIRMED 28VDC. FOUND MISSING GND AT P-J3 (988017). T/S FOUND CONNECTOR PARTIALLY INSTALLED T SEAT 7A INTERCONNECT TO 8A REF A350 WDM 33 -51. OPS CHECKS GOOD AFTER SEATING CONNECTOR FOR 7A. Aug 26, 2026 · N531DN · Airbus A350941SDR CALA2026090119172Wire Harness · damagedEMERGENCY LIGHT AT SEAT 38C INOPERATIVE. REPLACED THE LAMPS, NO HELP. ALL OTHER EMERGENCY PATH LIGHTS WORKS, ONLY LIGHT 38C INOPERATIVE. MEL 3319E APPROVED, COMPLIED WITH MEL. VERIFIED SEAT TRACK HARNESS HAS DAMAGED WIRES NEAR FLOORBOARD CONNECTION. COULAug 25, 2026 · N37462 · Boeing 737924ERSDR AALA202608316041Wire · brokenAIRCRAFT IN BASE MAINTENANCE: AISLE EMERGENCY LIGHT INOPERATIVE AT SEAT 30C - MAINTENANCE FOUND EMERGENCY LIGHT HARNESS HAD TWO BROKEN WIRES UNDER SEAT 31A AND REPLACED THE HARNESS - A SATISFACTORY OPERTATIONAL CHECK OF THE EMERGENCY LIGHTING WITH NO ISSUES NOAug 25, 2026 · N141NN · Airbus A321231SDR AALA202608311940Wire Harness · pulledAIRCRAFT WAS NOT GROUNDED: EMERGENCY LIGHT ON SEAT ROW 16ABC IS INOPERATIVE - MAINTENANCE FOUND PULLED PIN ON HARNESS FOR EMERGENCY LIGHT AT 16C AND REINSTALLED WIRE PER ESPM 20-33-45Aug 25, 2026 · N136AN · Airbus A321231SDR DALA2026082504817Wire · damagedFLOOR PROXIMITY EMERGENCY LIGHTS INOPERATIVE AT 36AB, 43AB, 56AB, 44JH, 49JH. REPAIRED WIRING PER AMM 33-51. (9139420) AIRCRAFT WAS GROUNDED.Aug 24, 2026 · N813NW · Airbus A330323SDR DALA2026082504816Wire · detachedWHITE SEAT MOUNTED ESCAPE LIGHT INOP AT 37L. RE-CONNECTED WIRE PER A330 AMM 33-51. (9181004) AIRCRAFT WAS GROUNDED.Aug 24, 2026 · N428DX · Airbus A330941SDR AALA202608265779Wire · disconnectedAIRCRAFT IN BASE MAINTENANCE: R1 DOOR LOWER EMERGENCY ESCAPE LIGHT IS INOP. FOUND WIRE FOR CONNECTOR TO R1 DOOR LOWER EMERGENCY ESCAPE LIGHT BROKEN AND OTHER CONNECTOR NOT CONNECTED. MAINTENANCE SPLICED BOTH WIRES PER ESPM 20-53-29, ESPM 20-53-21 AND AWM 33-51Aug 22, 2026 · N653AW · Airbus A320232SDR CALA2026082518905Elec Connector · disconnectedUPON EMERGENCY LIGHT TEST, LIGHT AT ROW 23CBA ON BULLNOSE NOT ILLUMINATING. REQUESTING MEL 3315A FOR BULLNOSE EMERGENCY LIGHT AT ROW23 ABC TOMC APPROVES MEL 3315A FOR BULLNOSE CEILING PANEL MOUNTED EMERGENCY LIGHT AT ROW 23ABC. DDP COMPLIED WITH..ONE STICKER IAug 22, 2026 · N27724 · Boeing 737724SDR DALA2026082404782Wire · damagedSEAT MOUNTED EMERGENCY LIGHTS OUT AT ROW 50 LEFT AND ROWS 36/42/46 RIGHT SIDE. REPAIRED WIRING PER A330 AMM 33-51. (8806936) AIRCRAFT WAS GROUNDED.Aug 22, 2026 · N812NW · Airbus A330323SDR CALA2026082418822Wire · brokenEMERGENCY LIGHTS OPERATIONAL CHECK, LT ROW 36 AISLE PATH LIGHTING INOP. FOUND BROKEN WIRE ON AISLE PATH LIGHT ASSY, REMOVED AND REPLACED LIGHT ASSY, OPS CHECKED GOOD AMM 33-51-00.Aug 22, 2026 · N37525 · Boeing 7379SDR CALA2026082118777Wire · shortedEMERGENCY LIGHTS TEST WITH TEST SWITCHES. GALLEY G2(8X) AND G2A (4X) EMERGENCY ESCAPE PATH LIGHTS INOP. WIRING CHECK AS PER 767-N0624-D74, SSM SUPPLEMENT 25-00-00, FOUND SHORTED. DISCONNECTED AND REMOVED ALL 12 EMERGENCY LIGHT ASSY FROM G2 & G2A, FOUND ONE OFAug 20, 2026 · N658UA · Boeing 767322SDR AALA202608206327Elec Connector · out of adjustAIRCRAFT WAS NOT GROUNDED: SEAT 18 LEFT EMERGENCY LIGHT INOPERATIVE - MAINTENANCE ADJUSTED LIGHT CONNECTOR PER AMM 33-50-00Aug 20, 2026 · N810AW · Airbus A319132SDR SWAA2026082401590Wire · detachedL1 DOOR OUTSIDE EMERGENCY LIGHT INOPERATIVE. FOUND WIRE W3142-0151-16 REMOVED FROM GROUND BLOCK GD3876. RE-PINNED WIRE TO GROUND BLOCK AND OPS CHECK OF EMERGENCY LIGHT L731 IS GOOD IAW WDM 33-51-12, SWPM 20-90-11, AND AMM 33-51-00-710-801.Aug 19, 2026 · N8676A · Boeing 7378H4SDR DXTA2026082109348Relay · faultyIN FLIGHT WITH EMERGENCY LIGHTS ARMED WHEN PAX SAFETY IS SELECTED OFF ALL EMERGENCY LIGHTS REMAIN ON. WHEN SELECTING EMER LIGHTS TO OFF ALL LIGHTS EXTINGUISH. CORRECTIVE ACTION: REMOVED RELAY S4655-15-022, NO SN, AND INSTALLED NEW RELAY PN: S4655-15-022, NO SAug 19, 2026 · N554QS · Cessna 680ASDR DALA2026082004759Wire · brokenDURING SVC CHK. FOUND ROW 27ABC & 28ABC EEPLS CLEAR LIGHTS INOP. FOUND BROKEN WIRE. REPAIR WIRE PER ESPM 20-43. OPS CHK OF THE CABIN EMERGENCY LIGHTING OK. (LP 9572590 - AIRCRAFT WAS GROUNDED)Aug 19, 2026 · N510DE · Airbus A321271NXSDR SWAA2026082448773Elec Connector · disconnectedCOCKPIT EMERGENCY LIGHT INOPERATIVE, PERFORMED GOOD CONTINUITY CHECK OF CONNECTOR D2992 TO GROUND. PERFORMED POWER CHECK FROM D 2970 - NO POWER AT CONNECTOR D2992. ACCESSED FWD BULLNOSE PANEL - PERFORMED VISUAL INSPECTION OF EMERGENCY LIGHT BATTERY PACK M1675Aug 18, 2026 · N8708Q · Boeing 7378SDR AALA202608204885Elec Connector · disconnectedAIRCRAFT WAS NOT GROUNDED: SEAT ROW 15 WHITE SEAT MOUNTED EMERGENCY AISLE LIGHT INOPERATIVE - MAINTENANCE FOUND CONNECTOR DICONNECTED UNDER SEAT ROW 15 - MAINTENANCE RECONNECTED THE CONNECTOR AND ACCOMPLISHED A SATISFACTORY OPERATIONAL CHECK PER AMM 33-51-13Aug 18, 2026 · N976UY · Airbus A321231
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