What was found
ENGINE #1 ANTI-ICE VALVE APPEARS TO HAVE FAILED OPEN. GROUNDED - YES. REMOVED AND REPLACED #1 ENG INLET COWL ANTI-ICE VALVE, OPS CHECKS GOOD REF B737-900 AMM 30-21-11.
- Difficulty date
- March 6, 2020
- Submitted
- March 10, 2020
- Operation
- Air carrier
- Aircraft
- N468AS
- Make and model
- Boeing 737990ER
- Aircraft serial
- 41735
- Aircraft time
- 22,389 hours, 7,214 cycles
- System (JASC)
- 3020 · Air Intake Anti/De-Ice System
- Part
- Anti-Ice Valve
- Part number
- 32156185
- Part serial
- 9809
- Condition
- Failed
- Location
- Nr 1 Engine
- Part time
- 20,516 hours, 6,588 cycles
- Stage of operation
- NR
- How discovered
- O
- Nature of condition
- J
- Precautionary procedure
- D
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.