What was found
MAIN CABIN, FORWARD WET AREA, MACHINED INTERCOSTAL AT BS344-BS360 LBL 11.10, WL 208.1 CRACKED ON UPPER FLANGE. GROUNDED - YES. REMOVED AND REPLACED INTERCOSTAL IAW SRM 51-40-02 AND DRAWING 141A5400 REV- SHEET 94.
- Difficulty date
- October 15, 2018
- Submitted
- October 22, 2018
- Operation
- Air carrier
- Aircraft
- N423AS
- Make and model
- Boeing 737990ER
- Aircraft serial
- 35206
- Aircraft time
- 21,888 hours, 7,230 cycles
- System (JASC)
- 5320 · Fuselage Miscellaneous Structure
- Part
- Intercostal
- Part number
- 141A5410148
- Condition
- Cracked
- Location
- Fuselage
- 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.