Service difficulty report · Bulkhead · Boeing 73776N

Difficulty date
February 2, 2022
Submitted
February 23, 2022
Operation
Air carrier
Aircraft
N7725A
Make and model
Boeing 73776N
Aircraft serial
32671
Aircraft time
50,724 hours, 25,358 cycles
Part
Bulkhead
Condition
Cracked
Location
Center Wing
Stage of operation
UK
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

BS 663 LOWER BULKHEAD IS CRACKED AT R.B.L. 50 W.L. 158. DAMAGE OUT OF LIMITS IAW SRM 57-10-10-1A-2 PARA 4.D. REMOVED AN APPROXIMATE 13'X.01' LENGTH OF CRACK DAMAGE FROM AN AREA LOCATED 46.5' FROM THE IN BOARD EDGE AND 5.5' FROM UPPER EDGE IAW SRM 51-70-04-2R-10 PARA 4.A-C. FOUND DAMAGE AT THE FASTENER HOLE THAT IS LOCATED 8.5' FROM THE UPPER EDGE AND 25' FROM THE INBOARD EDGE AS WELL AS CRACK DAMAGE LOCATED 4.25' FROM UPPER EDGE AND 22' FROM THE INBOARD EDGE. DAMAGE AREAS ALSO OUT OF LIMITS IAW SRM 57-10-10-1A-2 PARA 4.D. REMOVED DAMAGE & PREPPED AREAS FOR REPAIR IAW SRM 51-70-04-2R-10 PARA 4.A-C.

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