What was found
FRONT SPAR LEFT HAND UPPER WING SURFACE WS246 CORROSION. L/H UPPER WING SURFACE W.S. 246, FRONT SPAR, REPAIRED IAW BOEING SERVICE REQUEST 4-4649225247, SEE 8100-9 FOR FINAL APPROVAL.
- Difficulty date
- December 24, 2019
- Submitted
- January 8, 2020
- Operation
- Air carrier
- Aircraft
- N401YK
- Make and model
- Boeing 737436
- Aircraft serial
- 25860
- Aircraft time
- 57,186 hours, 36,394 cycles
- System (JASC)
- 5711 · Wing Spar
- Part
- Spar
- Condition
- Corroded
- Location
- Lt Wing
- 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.