Service difficulty report · Crease Beam · Boeing 757222

Difficulty date
October 8, 2014
Submitted
November 11, 2014
Operation
Air carrier
Aircraft
N780FD
Make and model
Boeing 757222
Aircraft serial
25253
Aircraft time
72,031 hours, 26,601 cycles
Part
Crease Beam
Part number
144N514031
Condition
Corroded
Location
Zone 200
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

BS 960 - 984 RT CREASE BEAM WEB FOUND CORRODED. CORROSION REMOVED IAW SRM 51-10-02 REV 112. REWORKED AREA EVALUATED AND FOUND MATERIAL LOSS OF 0.021" OUT OF 10% LIMIT OF ORIGINAL THICKNESS OF 0.063" IAW SRM 53-40-13 ALLOWABLE DAMAGE 1 FIG 101 REV 113 DETAIL III. FABRICATED IAW DWG 144N5140 SHT 3 REV D. CREASE BEAM REMOVED AND REPLACED IAW SRM 51-40-02 REV 113 AND BOEING DWG 144N5140 SHT 3 REV D. REPAIR CLASSIFIED AS MAJOR.