What was found
ENGINE BLEED AIR 5TH STAGE CHECK VALVES ON BOTH ENGINES INSPECTED FOR EMERGENCY AD 2020-16-51. BOTH CHECK VALVES SHOW SIGNS OF CORRODED FLAPPER PLATES, BUSHINGS AND WILL BE REPLACED.
- Difficulty date
- July 28, 2020
- Submitted
- July 30, 2020
- Operation
- Air carrier
- Aircraft
- N732KA
- Make and model
- Boeing 73759D
- Aircraft serial
- 25065
- Aircraft time
- 46,023 hours, 39,505 cycles
- System (JASC)
- 3610 · Pneumatic Distribution System
- Part
- Check Valve
- Part number
- 32022221
- Condition
- Corroded
- Location
- Engine
- 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.