- Difficulty date
- March 4, 2013
- Submitted
- March 8, 2013
- Operation
- Air carrier
- Make and model
- Boeing 737890
- Aircraft serial
- 35691
- Aircraft time
- 17,620 hours, 5,530 cycles
- Part
- Converter
- Part number
- 1152426245
- Part serial
- 060C0900
- Condition
- Failed
- Location
- Apu Sys
- Part time
- 38,831 hours, 14,147 cycles
- Stage of operation
- IN
- How discovered
- V
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
APU WONT START, VERIFIED DISCREPANCY - PERFORMED APU BITE IAW 49-60 TASK 801. FOUND FAULT CODE 49-41254 ACTIVE. START CONVERTER UNIT SHOWS START SYS INOP. PERFORMED 49-40, TASK 821. REMOVED START CONVERTER UNT. INSTALLED NEW SCU IAW 49-41-61. PERFOMED OPS CK IAW 49-41-61 AND MM 49-11-00. APU CKS NORMAL.