What was found
WEAK APU PRESS FOR ENG START. 10 PSI DURING START. CROSSBLEED START OKAY. VALVE OPENS AND CLOSES NORMAL. LOW DUCT PRESS FROM APU. INOPED PER MEL PROCEDURES. REPLACED SURGE CONTROL VALVE PER MM. OP CHECKED OKAY.
- Difficulty date
- April 29, 2011
- Submitted
- May 27, 2011
- Operation
- Air carrier
- Aircraft
- N598UA
- Make and model
- Boeing 757222
- Aircraft serial
- 28751
- Aircraft time
- 48,884 hours, 13,670 cycles
- Engine
- Pwa PW2037
- System (JASC)
- 4950 · APU Bleed Air System
- Part
- Control Valve
- Part number
- 97980612
- Part serial
- 187
- Condition
- Failed
- Location
- Apu Bleed Sys
- Stage of operation
- IN
- How discovered
- 9
- Nature of condition
- J
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.