What was found
DUE TO A REPORT OF THE APU START SWITCH BEEN STUCK IN THE OFF POSITION AND PREVENTING THE APU START, ACFT GROUNDED. REMOVED AND REPLACED THE APU MASTER SWITCH. OPS CHECKED GOOD. IAW AMM 49-41-01 AND WDM 49-62-11-7.
- Difficulty date
- June 3, 2018
- Submitted
- June 7, 2018
- Operation
- Air carrier
- Aircraft
- N588AS
- Make and model
- Boeing 737890
- Aircraft serial
- 35685
- Aircraft time
- 40,266 hours, 12,205 cycles
- System (JASC)
- 4940 · APU Start/Ignition System
- Part
- Switch
- Part number
- 111AT25
- Condition
- Stuck
- Location
- Apu Start
- Stage of operation
- IN
- How discovered
- O
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.