What was found
RIGHT DUCT PRESSURE FLUCTUATES RAPIDLY BETWEEN 20 & 40 PSI DURING SLIGHT PWR REDUCTIONS. BITE OF THE AIR BLEED CONTROLLER SHOWED PRV AND PRVC FAULT. REPLACED PRV AND PRVC IAW AMM, OPS CHECKED NORMAL.
- Difficulty date
- July 7, 2013
- Submitted
- July 9, 2013
- Operation
- Air carrier
- Aircraft
- N669UA
- Make and model
- Boeing 767322
- Aircraft serial
- 30025
- Aircraft time
- 51,094 hours, 12,804 cycles
- Engine
- Pwa PW4056
- System (JASC)
- 3610 · Pneumatic Distribution System
- Part
- Priority Valve
- Part number
- 79027013
- Part serial
- 199
- Condition
- Fluctuates
- Location
- Posit 2
- Stage of operation
- IN
- How discovered
- V
- Nature of condition
- J
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.