What was found
NUMBER ONE POSITION ENGINE SERIAL NUMBER 517598 WAS FOUND WITH A 4 INCH BLOWN HOLE ON 8TH STAGE "Y" DUCT. DUCT WAS REMOVED AND REPLACED AS PER 747 MM 75-25-00.
- Difficulty date
- February 20, 2007
- Submitted
- February 27, 2007
- Operation
- Air carrier
- Aircraft
- N526MC
- Make and model
- Boeing 7472D7B
- Aircraft serial
- 22337
- Aircraft time
- 93,058 hours, 19,113 cycles
- System (JASC)
- 7500 · Engine Bleed Air System
- Part
- Duct
- Part number
- 1756M94G03
- Condition
- Damaged
- Location
- Nr 1 Engine
- Part time
- 17,007 hours, 431 cycles
- 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.