What was found
FIRE EXT SQUIB TEST PANEL FAILS TO ILLUM ENG 1 WITH TEST SW 1. SUSPECT DIRTY SWITCH CONTACTS. CLEANED CONTACTS OPS CHECK NORMAL. AC OK FOR SERVICE.
- Difficulty date
- November 26, 2007
- Submitted
- November 27, 2007
- Operation
- Air carrier
- Aircraft
- N105UA
- Make and model
- Boeing 747451
- Aircraft serial
- 26473
- Aircraft time
- 55,105 hours, 6,683 cycles
- Engine
- Pwa PW4056
- System (JASC)
- 2612 · Fire Detection
- Part
- Switch
- Part number
- P4100822
- Condition
- Dirty
- Location
- Fire Detection
- Stage of operation
- IN
- How discovered
- C
- Nature of condition
- L
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.