What was found
NUMBER 1 ENGINE BLEED PRECOOLER CRACKED. NR 1 ENG BLEED AIR PRECOOLER LH LOWER BROKEN, LEAKING HOT BLEED AIR SEVERELY. REPLACED WITH NEW PRECOOLER BY OSV-AMECO-056269, NO LEAK FOUND.
- Difficulty date
- September 7, 2010
- Submitted
- September 10, 2010
- Operation
- Air carrier
- Aircraft
- N229UA
- Make and model
- Boeing 777222
- Aircraft serial
- 30557
- Aircraft time
- 36,141 hours, 4,406 cycles
- Engine
- Pwa PW40903
- System (JASC)
- 7520 · Engine Cooling System
- Part
- Precooler
- Part number
- 23417441
- Part serial
- 404
- Condition
- Cracked
- Location
- Nr 1 Bleed Sys
- 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.