Service difficulty report · Controller · Boeing 75724APF
FAA SDR system
- Difficulty date
- January 27, 2026
- Submitted
- January 30, 2026
- Operation
- Air carrier
- Make and model
- Boeing 75724APF
- Aircraft serial
- 23855
- Aircraft time
- 38,295 hours, 25,835 cycles
- Part
- Controller
- Part number
- 21173886
- Part serial
- 771260
- Condition
- Faulted
- Location
- Cabin Pressure
- Stage of operation
- DE
- How discovered
- O
- Nature of condition
- J
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EMERGENCY DECLARED, CABIN ALTITUDE WARNING EICAS ABOVE 100 MSL. A/C @ FL 210/CABIN ALT 11500/ WARNINGS OCCURRED WITH BOTH PACKS RUNNING. REMOVED AND REPLACED #2 AUTO CABIN CONTROL UNIT IAW AMM 21-31-02. OPS CHECK GOOD, PLACARD REMOVED.