What was found
APU ELECTRICAL INOPERATIVE, PRIOR TO APPLYING ELECTRIAL, GOOD VOLTAGE AND FREQUENCY, THEN ELECTRICAL DROPPED OFF LINE. ACFT GROUNDED. APU ELECTRICAL OPS CHECKED NORMAL.
- Difficulty date
- September 10, 2013
- Submitted
- September 12, 2013
- Operation
- Air carrier
- Aircraft
- N508AS
- Make and model
- Boeing 737890
- Aircraft serial
- 35691
- Aircraft time
- 19,519 hours, 6,087 cycles
- System (JASC)
- 4900 · Airborne Auxiliary Power Unit (APU) System
- Part
- Electrical Sys
- Condition
- Malfunctioned
- Location
- Apu
- Stage of operation
- TX
- How discovered
- O
- Nature of condition
- O
- Precautionary procedure
- D
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.