What was found
BS 520 S-9R, FRAME CRACKED. REPAIRED PER TYPICAL REPAIR 53-10-20D, DEFECT SIZE: .250 INCH.
- Difficulty date
- March 15, 2007
- Submitted
- March 15, 2007
- Operation
- Air carrier
- Aircraft
- N423US
- Make and model
- Boeing 737401
- Aircraft serial
- 23990
- Aircraft time
- 49,240 hours, 49,240 cycles
- System (JASC)
- 5311 · Fuselage Main, Frame
- Part
- Frame
- Condition
- Cracked
- Location
- Bs 520 S9r
- Stage of operation
- IN
- How discovered
- 9
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.