What was found
ATB- DUE TO (AIR L BLEED LEAK) MESSAGE. PERFORMED HIGH POWER ENGINE RUN AND INSPECTED WING AND PYLON DUCTING WITH NO LEAKS FOUND. REPLACED BOMU (BLEED AND OVERHEAT MONITORING UNIT). (LP# 7575136, 7575137)
- Difficulty date
- September 8, 2025
- Submitted
- September 12, 2025
- Operation
- Air carrier
- Aircraft
- N521DN
- Make and model
- Airbus A350941
- Aircraft serial
- 0661
- Aircraft time
- 6,438 hours, 505 cycles
- System (JASC)
- 3620 · Pneumatic Indicating System
- Part
- Warning Message
- Condition
- False Activation
- Stage of operation
- CL
- How discovered
- O
- Nature of condition
- N
- Precautionary procedure
- A
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.