What was found
REPORTS OF NR 1 ENGINE START VALVE IS SLOW TO OPEN OR STICKING. GROUNDED-YES. REMOVED AND REPLACED NR 1 ENGINE START VALVE, IAW B737-800 AMM 80-11-03. OPERATIONS CHECK GOOD, NO OTHER DEFECTS NOTED. GROUND VERIFICATION SATISFACTORY.
- Difficulty date
- December 7, 2020
- Submitted
- December 12, 2020
- Operation
- Air carrier
- Aircraft
- N559AS
- Make and model
- Boeing 737890
- Aircraft serial
- 35178
- Aircraft time
- 50,902 hours, 15,083 cycles
- Engine
- Cfmint CFM567B27
- System (JASC)
- 8012 · Engine Start Valves/Controls
- Part
- Start Valve
- Part number
- 32896302
- Part serial
- 9849
- Condition
- Sticking
- Location
- #1 Engine
- Part time
- 50,621 hours, 14,977 cycles
- Stage of operation
- IN
- How discovered
- 9
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.