- Difficulty date
- May 24, 2012
- Submitted
- May 30, 2012
- Operation
- Air carrier
- Make and model
- Boeing 737890
- Aircraft serial
- 39043
- Aircraft time
- 14,194 hours, 4,513 cycles
- Engine
- Cfmint CFM567B273
- Part
- Apu
- Part number
- 38007021
- Part serial
- P7343
- Condition
- Failed
- Part time
- 8,597 hours, 9,608 cycles
- Stage of operation
- NR
- How discovered
- 9
- 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
CSS FAILED WITH APU FAULT LIGHT. CSS INCOMPLETE DID NOT ATTEMPT THIRD START. ACFT GROUNDED. FAULT HISTORY: MSG 49-31016 MSG 49-41010 ( NO ACCELL SHUTDOWN). MSG 49-91005 (HIGH OIL PRESS) MSG49 91007 (LOW OIL PRESS). MESSAGES 49 31016 (OVERTEMP). 49-41010, 49-41010, & 49-11019. AFTER REVIEWING DATA POWERPLANT ENGINEERING RECOMMENDS REMOVING APU. REPLACED APU IAW T/C 78349010. OPS CHECKED GOOD.