Service difficulty report · Intercostal · Boeing 73771B

Difficulty date
October 21, 2022
Submitted
November 14, 2022
Operation
Air carrier
Aircraft
N7854B
Make and model
Boeing 73771B
Aircraft serial
29372
Aircraft time
45,663 hours, 30,470 cycles
Part
Intercostal
Part number
146A832211
Condition
Corroded
Location
Bs 787
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

CORROSION ON INTERCOSTAL AT ACB BS787+2 RBL24. REMOVED CORROSION & FOUND TO BE OUT OF LIMITS IAW SRM 53-60-15-1A-1 FIG#103. REMOVED INTERCOSTAL IAW 51-40-02. LOCATED AND DRILLED A NEW INTERCOSTAL IAW SRM 51-40-05-0G-0 AND DWG 146A8320. INSTALLED IAW SRM 51-40-02 AND DWG146A8320 REV.

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