What was found
F/O SIDE MASTER WARNING SWITCH DOES NOT CANCEL FIRE AURAL WARNING. CAPT SIDE MASTER WARNING SWITCH WORKS NORMAL R/R F/O SIDE MASTER WARNING SWITCH IAW AMM 31-52-01, OPS CK GOOD
- Difficulty date
- April 13, 2024
- Submitted
- April 15, 2024
- Operation
- Air carrier
- Aircraft
- N255UP
- Make and model
- Doug MD11F
- Aircraft serial
- 48404
- Aircraft time
- 92,467 hours, 21,025 cycles
- System (JASC)
- 3100 · Indicating/Recording System
- Part
- Master Switch
- Part number
- 85135778120
- Part serial
- NSN
- Condition
- Failed
- Location
- First Officer'S
- Stage of operation
- IN
- How discovered
- 9
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.