Service difficulty report · Bulkhead Web · Boeing 7377BD

Difficulty date
September 17, 2020
Submitted
September 21, 2020
Operation
Air carrier
Aircraft
N7748A
Make and model
Boeing 7377BD
Aircraft serial
36399
Aircraft time
42,942 hours, 21,608 cycles
Part
Bulkhead Web
Condition
Cracked
Location
Bs 663
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

CENTER WING SECTION REAR SPAR VAPOR BARRIER HAS VERTICAL CRACK APPROX 10 INCHES IN LENGTH LOCATED BETWEEN LBL 45.64 AND LBL 31.83. APPLIED INTERIM REPAIR, IAW SRM 57-10-10-1A-2 PAR 2C (4)(A) AND APB SRM SUPPLEMENT 57-10-10 ALLOWABLE DAMAGE 2.

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