- Difficulty date
- October 24, 2019
- Submitted
- October 25, 2019
- Operation
- Air carrier
- Make and model
- Boeing 737890
- Aircraft serial
- 35691
- Aircraft time
- 42,943 hours, 12,801 cycles
- Part
- Button
- Condition
- Missing
- Location
- Indicator
- Component
- Indicator
- Component part number
- 38810521
- 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 OIL FILTER INDICATOR BUTTON MISSING. GROUNDED - YES. REMOVED & REPLACED APU OIL FILTER BOWL & INDICATOR PER B737-800 AMM 49-91-13. INSTALLED NEW FILTER. NO CONTAMINATION FOUND ON OLD FILTER. APU OIL FILTER BOWL AND INDICATOR LEAK CHECK GOOD REF AMM 49-91-13-401.