Service difficulty report · Floor Support · Boeing 75727B
FAA SDR system
- Difficulty date
- November 21, 2018
- Submitted
- November 22, 2018
- Operation
- Air carrier
- Make and model
- Boeing 75727B
- Aircraft serial
- 24137
- Aircraft time
- 71,433 hours, 27,177 cycles
- Part
- Floor Support
- Condition
- Corroded
- Location
- Bs 1040-1080
- 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.
What was found
MAIN CARGO DECK FLOOR BEAM UPPER CHORD CORRODED BS1040 TO BS 1080 LBL 24.5 CORROSION REMOVED IAW SRM 51-10-02 REV 125 AND FOUND TO BE OUTSIDE LIMITS IAW SRM 53-00-51-1A DETAIL III REV 125 NOMINAL THICKNESS OF UPPER CHORD = 0.090" MAX ALLOWABLE BLEND = 10% = 0.009" ACTUAL MAX BLEND DEPTH = 0.060" FLOOR BEAM UPPER CHORD REPLACED IAW BOEING DWG #144N8017,111N5201 AND SRM 51- 40-02 REV 125 BS 1040 T0 BS 1080 LBL 24.5.