What was found
TCAS FAIL BOTH SIDES REMOVED AND INSTALLED TCAS COMPUTER. REF AMM 34-45-01. TCAS SYS TEST PASSED. REF AMM 34-45-01.
- Difficulty date
- April 28, 2025
- Submitted
- April 30, 2025
- Operation
- Air carrier
- Aircraft
- N786UA
- Make and model
- Boeing 777222
- Aircraft serial
- 26938
- Aircraft time
- 110,448 hours, 14,848 cycles
- System (JASC)
- 3445 · Air Collision Avoidance System
- Part
- Computer
- Part number
- 8222911001
- Part serial
- 4KPXM
- Condition
- Faulted
- Location
- Zone 100
- Part time
- 810,433 hours, 714,847 cycles
- Stage of operation
- CL
- How discovered
- O
- Nature of condition
- J
- Precautionary procedure
- A
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.