What was found
CRACK FOUND AT BS 520, STRINGER 12R, UPPER FORWARD WINDOW CORNER. HFEC INSPECTION REVEALED 2 CRACKS IN THE WINDOW FRAME. WINDOW FRAME REPLACED IAW SERVICE BULLETIN 737-53A1177, REV. 7.
- Difficulty date
- October 19, 2016
- Submitted
- November 25, 2016
- Operation
- Air carrier
- Aircraft
- N361NC
- Make and model
- Boeing 737301
- Aircraft serial
- 23260
- Aircraft time
- 74,173 hours, 48,096 cycles
- System (JASC)
- 5310 · Fuselage Main, Structure
- Part
- Window Frame
- Part number
- 6545785U9
- Condition
- Cracked
- Location
- Bs 520
- 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.