What was found
LEFT DUCT PRESSURE FLUCTUATED ON DESCENT 10-25PSI. REPLACED PRE REGULATOR, CHECKS GOOD.
- Difficulty date
- November 23, 2010
- Submitted
- December 3, 2010
- Operation
- Air carrier
- Aircraft
- N590UA
- Make and model
- Boeing 757222
- Aircraft serial
- 28708
- Aircraft time
- 51,425 hours, 14,327 cycles
- Engine
- Pwa PW2037
- System (JASC)
- 3610 · Pneumatic Distribution System
- Part
- Valve
- Part number
- 32144882
- Part serial
- 1801
- Condition
- Fluctuates
- Location
- Duct Pressure
- Stage of operation
- DE
- How discovered
- O
- Nature of condition
- O
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.