Service difficulty report · Strap · Boeing 7377BD

Difficulty date
December 1, 2022
Submitted
December 21, 2022
Operation
Air carrier
Aircraft
N7742B
Make and model
Boeing 7377BD
Aircraft serial
33928
Aircraft time
51,537 hours, 27,573 cycles
Part
Strap
Condition
Corroded
Location
Zn 100 Fus Lower
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 COMP STRAP UNDER FLOOR SUPPORT CORROSION STA 767+14 RBL 20'<[01] FOUND EXFOLIATING CORROSION AT AFT CARGO COMPARTMENT STRAP UNDER FLOOR SUPPORT AT STA 767+ 14 RBL 20. THIS CORROSION IS OUT OF LIMITS AS PER REF SRM 53-00-53-1A-2. PART NEEDS REPLACEMENT;[02] REMOVED STRAP AT AFT CARGO COMPARTMENT UNDER FLOOR SUPPORT STRUCTURE STA 767+14' AND RBL 20 REF SRM 51-40-02-0G-0;[03] LOCATED AND DRILLED HOLES ON NEW AFT CARGO COMPARTMENT STRAP UNDER FLOOR SUPPORT REF SRM 51-40-05;[04] VERIFIED STEP 1; 2; 3 AND OK TO INSTALL STRAP;[05] PARTIALLY INSTALLED AFT CARGO COMPARTMENT STRAP UNDER FLOOR SUPPORT AT STA 767+14 RBL 20 REF SRM 51-40-02;[06] FINALIZED INSTALLATION OF AFT CARGO COMPARTMENT STRAP UNDER FLOOR SUPPORT AT STA 767+ 14 RBL 20' REF SRM 51-40-02;[07] VERIFIED STEP 6

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