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SDR DHL2007742031

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Service difficulty report · Stringer · Boeing 727225

FAA SDR system

Difficulty date
December 11, 2007
Submitted
February 16, 2008
Operation
Air carrier
Aircraft
N742DH
Make and model
Boeing 727225
Aircraft serial
21290
Aircraft time
60,719 hours, 38,406 cycles
System (JASC)
5313 · Fuselage Main, Longeron/Stringer
Part
Stringer
Condition
Cracked
Location
Bs 930 S18a R
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

STRINGER 18A RIGHT CRACKED AT BS 930. CUT OUT DAMAGED SECTION AT STRINGER 18A RIGHT FROM BS 940 AFT APPROXIMATE DIMENSION 21.375" IAW EVA:B253-00027. FABRICATED 2 EACH STEEL ANNEALED REPAIR ANGLES APPROXIMATE DIMENSION 21.5" BY 1" BY 1" FROM 4130 NORMALIZED STEEL 0.100" PO NR 627737. FABRICATED REPAIR STRAP FROM 4130 NORMALIZED STEEL 0.100" PO NR 627737 APPROXIMATE DIMENSION 21.5" BY 3". FABRICATED 2 EACH RADIUS FILLERS FROM 4130 NORMALIZED STEEL 0.090" APPROXIMATE DIMENSION 21.5" BY 1" IAW ASTAR EVA B253-00027. HEAT TREATED REPAIR PARTS TO 160-180 KSI IAW ASTAR EVA B253-00027, CADMIUM PLATED REPAIR PARTS IAW FAS FORM NR FAS0036 REV 4. LOCATED AND DRILLED AND TRIMMED STRINGER 18A REPLACEMENT APPROXIMATE DIMENSION 21.375" IAW ASTAR EVA B253-00027. INSTALLED AT BS 930 STRINGER 18A RIGHT IAW ASTAR EVA B253-00027.