# JASC 3397: Light System Wiring

- Type: JASC system/component code (FAA)
- ATA chapter: 33 Lights
- Title in the code table: LIGHT SYSTEM WIRING
- Service difficulty reports: 22,631
- FAA code table: https://www.faa.gov/sites/faa.gov/files/JASC_Code.pdf#page=36
- Page: https://openairdocs.org/jasc/3397

## What it covers

For reports indicating a problem with wiring specific to the Lighting Systems.

## Latest service difficulty reports

- [SDR AALA202610199324](https://openairdocs.org/sdr/AALA202610199324), Oct 18, 2026: WIRE HARNESS, LOOSE (N914UY)
- [SDR AALA202610194708](https://openairdocs.org/sdr/AALA202610194708), Oct 18, 2026: WIRE HARNESS, LOOSE (N914UY)
- [SDR AALA202610195038](https://openairdocs.org/sdr/AALA202610195038), Oct 18, 2026: WIRE HARNESS, LOOSE (N914UY)
- [SDR AALA202610194649](https://openairdocs.org/sdr/AALA202610194649), Oct 16, 2026: ELEC CONNECTOR, DAMAGED (N934AA)
- [SDR DALA2026101605699](https://openairdocs.org/sdr/DALA2026101605699), Oct 16, 2026: WIRE, BROKEN (N940AT)
- [SDR AALA202610198922](https://openairdocs.org/sdr/AALA202610198922), Oct 15, 2026: ELEC CONNECTOR, LOOSE (N904AA)
- [SDR AALA202610130642](https://openairdocs.org/sdr/AALA202610130642), Oct 12, 2026: ELEC CONNECTOR, DISCONNECTED (N145AN)
- [SDR DALA2026101305619](https://openairdocs.org/sdr/DALA2026101305619), Oct 12, 2026: WIRE HARNESS, DAMAGED (N851NW)
- [SDR DALA2026101305618](https://openairdocs.org/sdr/DALA2026101305618), Oct 12, 2026: WIRE HARNESS, DAMAGED (N851NW)
- [SDR DXTA2026101310162](https://openairdocs.org/sdr/DXTA2026101310162), Oct 12, 2026: SIGN, DISCONNECTED (N923QS)
- [SDR CALA2026101320356](https://openairdocs.org/sdr/CALA2026101320356), Oct 11, 2026: ELEC CONNECTOR, DISCONNECTED (N18223)
- [SDR YENA2026101200945](https://openairdocs.org/sdr/YENA2026101200945), Oct 11, 2026: SWITCH, FAULTED (N715JB)
- [SDR AALA202610109295](https://openairdocs.org/sdr/AALA202610109295), Oct 10, 2026: PIN, BROKEN (N723UW)
- [SDR AALA202610097757](https://openairdocs.org/sdr/AALA202610097757), Oct 8, 2026: ELEC CONNECTOR, DISCONNECTED (N773AN)
- [SDR DALA2026100805565](https://openairdocs.org/sdr/DALA2026100805565), Oct 7, 2026: WIRE, DAMAGED (N807NW)
- [SDR DALA2026100805564](https://openairdocs.org/sdr/DALA2026100805564), Oct 7, 2026: WIRE, DAMAGED (N807NW)
- [SDR CALA2026100920255](https://openairdocs.org/sdr/CALA2026100920255), Oct 6, 2026: WIRE, BROKEN (N671UA)
- [SDR DALA2026100805570](https://openairdocs.org/sdr/DALA2026100805570), Oct 5, 2026: ELEC CONNECTOR, LOOSE (N392DA)
- [SDR AALA202610071347](https://openairdocs.org/sdr/AALA202610071347), Oct 5, 2026: PIN, DAMAGED (N173US)
- [SDR DALA2026101305614](https://openairdocs.org/sdr/DALA2026101305614), Oct 4, 2026: WIRE, UNSECURE (N581NW)
- [SDR DALA2026100605516](https://openairdocs.org/sdr/DALA2026100605516), Oct 4, 2026: TERMINAL, DETACHED (N581NW)
- [SDR DXTA2026100510014](https://openairdocs.org/sdr/DXTA2026100510014), Oct 3, 2026: ELEC CONNECTOR, DISCONNECTED (N697QS)
- [SDR AALA202610052636](https://openairdocs.org/sdr/AALA202610052636), Oct 2, 2026: ELEC CONNECTOR, INOPERATIVE (N810NN)
- [SDR CALA2026100520071](https://openairdocs.org/sdr/CALA2026100520071), Oct 2, 2026: LIGHT, DISCONNECTED (N848UA)
- [SDR DXTA2026100509976](https://openairdocs.org/sdr/DXTA2026100509976), Oct 1, 2026: WIRE, DAMAGED (N908QS)
- [SDR CALA2026100520108](https://openairdocs.org/sdr/CALA2026100520108), Oct 1, 2026: ELEC CONNECTOR, DISCONNECTED (N57299)
- [SDR HNAA2026100200941](https://openairdocs.org/sdr/HNAA2026100200941), Oct 1, 2026: PIN, DAMAGED (N640AE)
- [SDR DALA2026101005580](https://openairdocs.org/sdr/DALA2026101005580), Sep 30, 2026: ELEC CONNECTOR, LOOSE (N536DN)
- [SDR AALA202610022887](https://openairdocs.org/sdr/AALA202610022887), Sep 30, 2026: ELEC CONNECTOR, DISCONNECTED (N810NN)
- [SDR AALA202610012877](https://openairdocs.org/sdr/AALA202610012877), Sep 30, 2026: WIRE HARNESS, DISCONNECTED (N729AN)
- [SDR DALA2026100105454](https://openairdocs.org/sdr/DALA2026100105454), Sep 30, 2026: WIRE, BROKEN (N808NW)
- [SDR HNAA2026100100931](https://openairdocs.org/sdr/HNAA2026100100931), Sep 30, 2026: GROUND STUD, BROKEN (N696AE)
- [SDR DALA2026093005440](https://openairdocs.org/sdr/DALA2026093005440), Sep 30, 2026: WIRE HARNESS, INOPERATIVE (N812NW)
- [SDR DALA2026092905411](https://openairdocs.org/sdr/DALA2026092905411), Sep 29, 2026: ELEC CONNECTOR, LOOSE (N406DX)
- [SDR AALA202609307449](https://openairdocs.org/sdr/AALA202609307449), Sep 28, 2026: WIRE HARNESS, INOPERATIVE (N873BB)
- [SDR CALA2026093020014](https://openairdocs.org/sdr/CALA2026093020014), Sep 28, 2026: ELEC CONNECTOR, DISCONNECTED (N13718)
- [SDR AALA202609294234](https://openairdocs.org/sdr/AALA202609294234), Sep 28, 2026: WIRE, BROKEN (N971UY)
- [SDR CALA2026092919961](https://openairdocs.org/sdr/CALA2026092919961), Sep 28, 2026: WIRE, BROKEN (N67846)
- [SDR CALA2026100520117](https://openairdocs.org/sdr/CALA2026100520117), Sep 27, 2026: WIRE HARNESS, FAULTED (N24224)
- [SDR AALA202609293512](https://openairdocs.org/sdr/AALA202609293512), Sep 27, 2026: WIRE, SEVERED (N183UW)
- [SDR AALA202609292722](https://openairdocs.org/sdr/AALA202609292722), Sep 27, 2026: WIRE, SEVERED (N183UW)
- [SDR CALA2026092919980](https://openairdocs.org/sdr/CALA2026092919980), Sep 27, 2026: WIRE, DAMAGED (N432UA)
- [SDR DALA2026092805394](https://openairdocs.org/sdr/DALA2026092805394), Sep 27, 2026: WIRE, DAMAGED (N403DX)
- [SDR CALA2026092819900](https://openairdocs.org/sdr/CALA2026092819900), Sep 26, 2026: WIRE, BROKEN (N74856)
- [SDR DXTA2026092809874](https://openairdocs.org/sdr/DXTA2026092809874), Sep 25, 2026: ELEC CONNECTOR, DISCONNECTED (N539QS)
- [SDR AALA202609279519](https://openairdocs.org/sdr/AALA202609279519), Sep 25, 2026: WIRE HARNESS, DEFECTIVE (N748UW)
- [SDR AALA202609285141](https://openairdocs.org/sdr/AALA202609285141), Sep 24, 2026: WIRE, INOPERATIVE (N9022G)
- [SDR HNAA2026092500912](https://openairdocs.org/sdr/HNAA2026092500912), Sep 24, 2026: ELEC CONNECTOR, BROKEN (N637AE)
- [SDR DALA2026092905405](https://openairdocs.org/sdr/DALA2026092905405), Sep 23, 2026: WIRE, DETACHED (N16065)
- [SDR DXTA2026092809859](https://openairdocs.org/sdr/DXTA2026092809859), Sep 23, 2026: ELEC CONNECTOR, DAMAGED (N531QS)

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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.