What was found
FUMES IN THE COCKPIT DURING CRUISE. FOUND THE COCKPIT NR 1 EQUIPMENT SUPPLY FAN TO BE AT FAULT. REPLACED THE COCKPIT EQUIPMENT COOLING SUPPLY FAN IAW AMM 21-58-23-014-005 & 21-58-23-414-030.
- Difficulty date
- May 22, 2018
- Submitted
- May 25, 2018
- Operation
- Air carrier
- Aircraft
- N421UP
- Make and model
- Boeing 75724APF
- Aircraft serial
- 25281
- Aircraft time
- 27,788 hours, 18,408 cycles
- System (JASC)
- 2120 · Air Distribution System
- Part
- Fan
- Part number
- 731378
- Part serial
- 0843
- Condition
- Failed
- Location
- Cockpit
- Stage of operation
- CR
- How discovered
- O
- Nature of condition
- B
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.