Service difficulty report · Shear Tie · Boeing 737

Difficulty date
January 4, 2022
Submitted
April 26, 2022
Operation
Air carrier
Aircraft
N791SW
Make and model
Boeing 737
Aircraft serial
27886
Aircraft time
67,914 hours, 39,947 cycles
Part
Shear Tie
Condition
Corroded
Location
Aft Cargo
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

SUPPLEMENTAL INFORMATION: **CORROSION** AFT CARGO COMPARTMENT BILGE AREA; RIB AT STA-827 BETWEEN S-25L AND S-26L; FWD FACE AREA AROUND RIVET SPOT OF SURFACE CORROSION. DOT#208-161 ; / [01] REMOVED FASTENERS ON AFT CARGO COMP. BILGE AREA SHIELD TIE OF FRAME; AT STA: 827; BETWEEN S-25L AND S-26L FOR ACCESS; PER REF. B737 SRM 51-40-02-0G-0; [02] REMOVED CORROSION ON AFT CARGO COMP. BILGE AREA SHIELD TIE OF FRAME; AT STA: 827; BETWEEN S-25L AND S-26L ; CORROSION PASS THRU; PER REF. B737 SRM 51-10-02-0G-0; [03] VERIFIED STEPS 1 AND 2.; [04] REMOVED DAMAGE SHEAR TIE PER REF. 737 SRM 51-40-02-0G-0; AT STA 827 BETWEEN STRINGER 25 AND 26 L; [05] VERIFIED STEP 4.; [06] LOCATED AND DRILLED NEW SHEAR TIE PER REF 737 SRM 51-40-05-0G-0; [07] (RII) VERIFIED STEP 6.; [08] OK TO TREAT AND PRIME REPAIR AREA AND PART.; [09] TREATED AND PRIMER REPAIR AREA PER REF 737 AMM 51-21-41-370-802 AND 51-21-72-370-804; [10] VERIFIED STEP 9.; [11] (RII) OK TO INSTALL NEW SHEAR TIE.; [12] INSTALLED NEW SHEAR TIE AT STA. 827 BETWEEN STRINGER 25 AND 26 L PER REF. 737 SRM 51-40-02-0G-0 AND DRAWING 146A3010 AND 146A3200; [13] (RII) VERIFIED STEP 12.; [14] INSTALLED NEW SHEAR TIE AT STA. 827 BETWEEN STRINGER 25 AND 26 L PER REF. 737 SRM 51-40-02-0G-0 AND DRAWING 146A3010 AND 146A3200; [15] (RII) VERIFIED STEP 14.