Service difficulty report · Stringer · Boeing 757251

Difficulty date
December 20, 2010
Submitted
December 21, 2010
Operation
Air carrier
Aircraft
N519US
Make and model
Boeing 757251
Aircraft serial
23207
Aircraft time
74,471 hours, 30,609 cycles
Part
Stringer
Condition
Corroded
Location
Bs 1440-1480 S30
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

DURING M-CHECK, FOUND AFT CARGO COMPARTMENT BETWEEN STA 1440 TO 1480 SEVERAL AREAS AROUND RIVETS STR 30 CORRODED. REMOVED SPLICE AND FASTENERS IAW SRM 51-40-02 TO BLENDED AREA ON STR 30, STA 1440 TO 1480 MATERIAL LOSS .003 REMAINING THICKNESS .097" WITH IN LIMITS IAW SRM 53-00-03 FIG 101, DETAIL II. BLENDED SPLICE ORIGINAL THICKNESS .105 MATERIAL LOSS .045" REMAINING THICKNESS .060" OUT OF LIMITS IAW SRM 53-00-03, FIG 101, DETAIL II, LOCATED AND DRILLED NEW SPLICE IAW SRM 51-40-05 WHICH WAS FABRICATED IAW DWG 146N3820 FROM 7075-0 .100B BATCH 0001679661 HEAT TREATED TO T6 ON TRAVELER T10/863023, TREATED AND PRIMED IAW SRM 51-20-02, INSTALLED SPLICE IAW SRM 51-40-02, APPLIED TOP COAT IAW AMM 51-21-10.