- Difficulty date
- January 23, 2014
- Submitted
- January 27, 2014
- Operation
- Air carrier
- Make and model
- Boeing 737990ER
- Aircraft serial
- 43293
- Aircraft time
- 531 hours, 163 cycles
- Part
- Ecu
- Part number
- 707208601
- Part serial
- 6505150200613
- Condition
- Malfunctioned
- Location
- Apu
- Part time
- 573 hours, 176 cycles
- Stage of operation
- TX
- How discovered
- O
- 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
DURING APU START, BLUE MAINTENANCE LIGHT ILLUMINATED, ALL INDICATIONS AND PNEUMATICS NORMAL. ACFT GROUNDED. REPLACED APU ECU IAW AMM TASK 49-61-12-000-801. AND 49-61-12-400-801. ACCOMPLISHED APU STARTING AND OPS IAW AMM 49-11-00-860-801. MAINTENANCE BLUE LIGHT REMAINS OFF.