Service difficulty report · Starter Gen · Boeing 737990ER
FAA SDR system
- Difficulty date
- June 23, 2019
- Submitted
- July 2, 2019
- Operation
- Air carrier
- Make and model
- Boeing 737990ER
- Aircraft serial
- 41734
- Aircraft time
- 24,785 hours, 8,090 cycles
- Part
- Starter Gen
- Condition
- Failed
- Location
- Apu
- Part time
- 5,740 hours, 11,189 cycles
- Stage of operation
- NR
- How discovered
- 9
- Nature of condition
- O
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
APU WILL NOT START. FAULT & MAINT LIGHT. GROUNDED - YES. TROUBLE SHOOTING ON W/O: 458518 TASKCARD: N/R-00002 FOUND MAINT MSG 49-41244 GEN DIODE FAIL SHUTDOWN. ACCOMPLISHED B737-900 FIM 49-40 TASK 806. APU REQUIRES STARTER GENERATOR REPLACEMENT. REMOVED AND REPLACED APU STARTER GEN REF B737-900 AMM 49-41-21. APU OPS CHECKS GOOD.