Service difficulty report · Crease Beam · Boeing 757222

Difficulty date
July 28, 2016
Submitted
July 29, 2016
Operation
Air carrier
Aircraft
N790FD
Make and model
Boeing 757222
Aircraft serial
26693
Aircraft time
70,722 hours, 24,723 cycles
Part
Crease Beam
Part number
144N51521
Condition
Corroded
Location
Fuselage
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 982 - 983 LEFT CREASE BEAM INNER ANGLE VERTICAL FLANGE FOUND CORRODED. REMOVED IAW SRM 51-10-02-0G, REV 118.0. REWORKED AREA EVALUATED AND FOUND CORROSION MORE THAN 50 PERCENT THRU EXCEEDED 10 PERCENT LIMIT IAW SRM 53-40-13-1A, REV 118.0 INNER CHORD REMOVED BETWEEN 900-1040 LT. NEW INNER CHORD FABRICATED IAW DWG 144N5152, SHT 1 REV AND INSTALLED IAW DWG 144N5140, SHT 3, REV D AND 144N5140, SHT 4, REV A. REPAIR CLASSIFIED AS MAJOR.