What was found
APU BLEED FOUND INOP DUE TO A FAULTY ECU DURING THE BITE PROCEDURES. ECU WAS REPLACED AND APU BLEED WAS RESTORED.
- Difficulty date
- May 11, 2021
- Submitted
- June 6, 2021
- Operation
- Air carrier
- Aircraft
- N888LT
- Make and model
- Boeing 757230
- Aircraft serial
- 25441
- Aircraft time
- 74,370 hours, 24,265 cycles
- System (JASC)
- 4940 · APU Start/Ignition System
- Part
- Ecu
- Part number
- 211734220
- Part serial
- 105518
- Condition
- Faulted
- Location
- Apu
- Stage of operation
- IN
- How discovered
- 9
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.