# SDR KCSA2022091023

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 10, 2022
- Submitted: September 21, 2022
- Operation: Air carrier
- Aircraft: [N742CK](https://openairdocs.org/aircraft/N742CK), registered now
- Make and model: Boeing 747446
- Aircraft serial: 24424
- Aircraft time: 113,574 hours, 23,934 cycles
- System (JASC): [3300 · Lighting System](https://openairdocs.org/jasc/3300)
- Part: None
- Part number: 90084
- Part serial: R22
- Condition: Unserviceable
- Location: Left
- Stage of operation: UK
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/KCSA2022091023

## Discrepancy

NO FRM FOUND. EMERGENCY LIGHTS ON ADVISORY FLASHES IN ARM POSITION. REFERENCE LOG PAGE 100010081 EMERGENCY LIGHTS ON ADVISORY
FLASHES IN ARM POSITION. PER E50 22-110 AND B747-400 AMM 33-51-04 REMOVED POWER SUPPLY AND APPLIED ELECTRICAL CONNECTORS.
REINSTALLED ALL REMOVED SIDEWALL AND CEILING PANELS PER AMM 25-21-02 AND AMM 25-22-03. SEE LOG PAGE 100010082 FOR CARRY OVER ITEM.
APPROVED FOR CARRY OVER ITEM 100010082 PER AMM 35-51-04 AND KA E50 22-110. SEE LOG PAGE 100010098 ITEM 100010100. REFERENCE
LOG PAGE 100010089: EMERGENCY BATTERY PACK REMOVED AND CAPPED AND STOWED DUE EMERGENCY LIGHTS INTERMITTENTLY COMING ON IN THE
ARM POSITION. INSTALLED POWER SUPPLY IAW B747-400 AMM 33-51-04, ALL CHECKS GOOD. REFERENCE WORK ORDER #742026224 FOR ORIGINAL
SIGNATURES AND WORK PERFORMED. REFERENCE CARRY OVER ITEM 100010082: EMERGENCY LIGHTING/FERRY FLIGHT. REFERENCE WORK ORDER
#742026224 FOR INSTALLATION OF SERVICEABLE POWER SUPPLY AND OPERATIONS CHECK. THIS CLEARS CARRY OVER ITEM 100010082.

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