- Difficulty date
- April 10, 2012
- Submitted
- April 11, 2012
- Operation
- Air carrier
- Aircraft
- N748CK
- Make and model
- Boeing 747221F
- Aircraft serial
- 21744
- Aircraft time
- 113,005 hours, 25,456 cycles
- Part
- Frame
- Condition
- Cracked
- Location
- Bs 400
- Stage of operation
- IN
- How discovered
- E
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BS 400 4" I/B OF S44L ONE HOLE HAS CRACK INDICATION.