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 BS 1040-BS1080 LBL 45.5 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 = .043". FLOOR BEAM UPPER CHORD REPLACED IAW BOEING DWG # 144N8017, 111N5201 AND SRM 51- 40-02 REV 125. BS 1040 TO BS 1080 LBL 45.5