- Difficulty date
- October 16, 2019
- Submitted
- October 22, 2019
- Operation
- Air carrier
- Make and model
- Boeing 737990ER
- Aircraft serial
- 44105
- Aircraft time
- 16,972 hours, 5,543 cycles
- Part
- Heater
- Condition
- Intermittent
- Location
- Left Aoa
- Component part number
- 0861FL1
- Stage of operation
- CL
- 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
CLIMBING THROUGH 10000 L ALPHA VANE LIGHT ILLUMINATED LIGHT EXTINGUISHED AT TOUCHDOWN. GROUNDED - YES. REMOVED & REPLACED WINDOW/PITOT HEAT MODULE (P5-9) REF B737-900 AMM 30-41-41, INSTALLATION TEST PASS. REMOVED & REPLACED LEFT AOA SENSOR REF AMM 34-21-05 6. ALL INSTALLATION TEST PASS.