What was found
DUCT PRESSURE DROPS WHEN USING APU BLEED AIR FOR START OR PACK OPERATIONS. 15 PSI R & R INLET GUIDE VANE ACTUATOR IAW AMM, NO HELP. IGV REPLACED, OPERATIONS CHECKED GOOD AT THIS TIME IAW AMM.
- Difficulty date
- October 16, 2013
- Submitted
- October 17, 2013
- Operation
- Air carrier
- Aircraft
- N549UA
- Make and model
- Boeing 757222
- Aircraft serial
- 25397
- Aircraft time
- 82,414 hours, 23,669 cycles
- Engine
- Pwa PW2037
- System (JASC)
- 4950 · APU Bleed Air System
- Part
- Guide Vane
- Part number
- 38861674
- Part serial
- 204193
- Condition
- Faulty
- Location
- Apu
- Stage of operation
- NR
- 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.