What was found
FIRE WARNING LIGHTS ON CONSTANT, WILL NOT RESET OR TEST. FOUND BAD FIRE WARNING CUT-OUT SWITCH. REPLACED MASTER F/O SWITCH AND ASSY, OPS CHK GOOD.
- Difficulty date
- April 25, 2006
- Submitted
- May 1, 2006
- Operation
- Air carrier
- Aircraft
- N471EV
- Make and model
- Boeing 747273C
- Aircraft serial
- 20651
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Switch
- Condition
- Failed
- Location
- Fire Warning
- Stage of operation
- IN
- How discovered
- 9
- Nature of condition
- N
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.