What was found
HIGH PITCHED WHINE BEHIND INSTUMENT PANEL. REPLACED LT RECIRCULATION FAN FILTER. OPS CHECKED NORMAL.
- Difficulty date
- May 21, 2013
- Submitted
- June 27, 2013
- Operation
- Air carrier
- Aircraft
- N523UA
- Make and model
- Boeing 757222
- Aircraft serial
- 24932
- Aircraft time
- 73,062 hours, 27,013 cycles
- Engine
- Pwa PW2040
- System (JASC)
- 2120 · Air Distribution System
- Part
- Filter
- Condition
- Faulted
- Location
- Recirc Fan
- 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.