# SDR TWAA9614201

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 19, 1996
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N303TW](https://openairdocs.org/aircraft/N303TW), registered now
- Make and model: Boeing 747257B
- Aircraft serial: 20116
- System (JASC): [3310 · Flight Compartment Lighting](https://openairdocs.org/jasc/3310)
- Part: Test Box
- Part number: 65B4752230
- Condition: Failed
- Location: Cockpit
- Stage of operation: CR
- Nature of condition: B
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/TWAA9614201

## Discrepancy

JFK - FLT 885 - DURING CRUISE, HAD SMOKE AND ELECTRICAL ODOR FROM ENGINEER PANEL.  TURNED OFF WINDOW HEAT.  FOUND OVERHEAT INDICATION IN MASTER DIM AND TEST BOX, MFG P/N 65B47522-30.  REPLACED MASTER DIM AND TEST BOX, CHECKED WINDOW HEAT WIRING.  MASTER DIM AND TEST BOX AND WINDOW HEAT OPERATION CHECKED NORMAL.  CHECK C - 4-16-96 - MCI.  (X)

---
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.