What was found
CORROSION ON THE L4 DOOR LOWER SILL FLOOR SUPPORT CHANNEL AT LBL 55 BETWEEN STATION 1640 AND 1661 LBL 55. REPLACED THE FLOOR SUPPORT IAW SRM 53-00-51-1A -1, AND 51-40-02.
- Difficulty date
- July 15, 2017
- Submitted
- July 18, 2017
- Operation
- Air carrier
- Aircraft
- N203UW
- Make and model
- Boeing 75723N
- Aircraft serial
- 30548
- Aircraft time
- 54,617 hours, 15,817 cycles
- System (JASC)
- 5320 · Fuselage Miscellaneous Structure
- Part
- Floor Support
- Part number
- 146N5246U7
- Condition
- Corroded
- Location
- Bs 1640-1661
- 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.