What was found
APU SHOWS 0 DUCT PRESSURE. GROUNDED - YES. REMOVED AND REPLACED APU ECU, VERIFIED DUCT PRESSURE IS AVAILABLE, OPS CHECK SUCCESSFUL, NO FURTHER DEFECTS NOTED, REF B737-800 AMM 49-61-12.
- Difficulty date
- January 28, 2020
- Submitted
- February 5, 2020
- Operation
- Air carrier
- Aircraft
- N506AS
- Make and model
- Boeing 737890
- Aircraft serial
- 35690
- Aircraft time
- 43,922 hours, 13,391 cycles
- System (JASC)
- 4940 · APU Start/Ignition System
- Part
- Eec
- Part number
- 2118966222
- Part serial
- 126F1945
- Condition
- Faulted
- Location
- Apu
- Part time
- 49,652 hours, 14,969 cycles
- Stage of operation
- NR
- How discovered
- O
- Nature of condition
- O
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.