Service difficulty report · Plate · Boeing 73776N

Difficulty date
April 30, 2019
Submitted
March 8, 2022
Operation
Air carrier
Aircraft
N7818L
Make and model
Boeing 73776N
Aircraft serial
28609
Aircraft time
58,323 hours, 34,449 cycles
Part
Plate
Part number
149A811813
Condition
Corroded
Location
Aft Cargo Compt
Stage of operation
IN
How discovered
9
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

AFT CARGO STA 947; ABOVE STR 25R; SPLICE PLATE FOR AFT BULKHEAD ATTACH ANGLE HAS CORROSION / REMOVED CORROSION ON SPLICE PLATE IAW SRM 51-10-02-0G-0. ORIGINAL MAT THICKNESS .064'; LOSS OF .008'; WITH .056 REMAINING. FOUND TO BE OUT OF LIMITS IAW 51-10-02-0G-0 PARA 9C. . FABRICATED NEW SPLICE PLATE FROM 7075-0 .063' IAW DWG 149A8118 REV A ATAG # A32454. REMOVED DAMAGED SPLICE PLATE IAW SRM 51-40-02-0G-0 FIG 8. DRILLED AND LOCATED IAW DWG 149A8118 REV A SHEET 11. TREATED AND PRIMED IAW SRM 51-20-01-0G-0. TOP COATED SPLICE IAW AMM 51-21-99-300-801. INSTALLED NEW SPLICE PLATE IAW AFT CARGO STA 947 ABOVE STR 25R AT AFT BULKHEAD P/N 149A8118-13 IAW DWG 149A8118 REV A SHEET 6; SRM 51-40-02-0G-0.

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