What was found
PER EA 800-71EA-18794 STEP 21 REQUIRES THE NR 2 ENGINE 5TH STAGE CHECK VALVE. ACFT GROUNDED. REMOVED AND REPLACED THE NR 2 ENGINE 5TH STAGE CHECK VALVE IAW AMM 36-11-02. LEAK CHECKED GOOD.
- Difficulty date
- May 4, 2017
- Submitted
- May 8, 2017
- Operation
- Air carrier
- Aircraft
- N566AS
- Make and model
- Boeing 737890
- Aircraft serial
- 35182
- Aircraft time
- 39,560 hours, 11,846 cycles
- System (JASC)
- 3610 · Pneumatic Distribution System
- Part
- Check Valve
- Part number
- 32022221
- Part serial
- 10450
- Condition
- Failed
- Location
- Nr 2 Engine
- Part time
- 39,562 hours, 11,847 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.