What was found
L1 MOP SILL HAS SPOTS OF CORROSION. GROUNDED - YES. FURTHER EVALUATION FOUND L1 MOP SILL CRACKED. REMOVED AND REPLACE THE L1 MOP SILL IAW B737-700 SRM 51-40-02-0G-0.W= 2.50" O= .090" R= 0" L= 5.00" D= .090".
- Difficulty date
- October 26, 2021
- Submitted
- November 4, 2021
- Operation
- Air carrier
- Aircraft
- N614AS
- Make and model
- Boeing 737790
- Aircraft serial
- 30343
- Aircraft time
- 67,626 hours, 34,363 cycles
- System (JASC)
- 5310 · Fuselage Main, Structure
- Part
- None
- Part number
- 654A00041073
- Condition
- Corroded
- Stage of operation
- IN
- How discovered
- O
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.