What was found
EQUIP COOLING CAUTION MSG IN CRUISE. R & R FLOW REGULATOR VALVE AND OPS CHECK. NO HELP. R & R EXHAUST FAN SENSOR T1592, CONTROL RELAY R7450, DIODE M3287 & OPS CHECK GOOD IAW AMM 21-58-18/401, WDM 21-58-21 & IPC 24-31-03-20.
- Difficulty date
- June 1, 2026
- Submitted
- June 2, 2026
- Operation
- Air carrier
- Aircraft
- N486MC
- Make and model
- Boeing 74745EF
- Aircraft serial
- 30608
- Aircraft time
- 110,467 hours, 19,602 cycles
- System (JASC)
- 2150 · Cabin Cooling System
- Part
- Relay
- Part number
- 91318506
- Part serial
- 10178
- Condition
- Faulted
- Location
- Zone 200
- Stage of operation
- CR
- How discovered
- O
- Nature of condition
- O
- Precautionary procedure
- A
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.