SDR SWAA2022042085162

Service difficulty report · Tension Tie · Boeing 737*

Difficulty date: March 17, 2022
Submitted: April 20, 2022
Operation: Air carrier
Aircraft: N472WN
Make and model: Boeing 737*
Aircraft serial: 33831
Aircraft time: 58,559 hours, 34,804 cycles
System (JASC): 5310 · Fuselage Main, Structure
Part: Tension Tie
Condition: Corroded
Location: Fuselage
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 SHEAR WEB TENSION STRAP AT B.S. 1006+3 - 1016+12; L.B.L. 3; W.L. 208.1. / [01] THIS STRUCTURAL ITEM DOES NOT HAVE ENTRIES IN SRM FOR ALLOWABLE DAMAGE. TENSION STRAP WILL BE REPAIRABLE BY REPLACEMENT. PER SRM 51-10-02-0G-0 PARAGRAPH 9;[02] VERIFIED CORRECTIVE ACTION#1;[03] PARTIAL STEP 1 ITEM 1 COMPLETE.;[04] INSTALLED NEW TENSION STRAP IAW SRM 51-40-02-0G-0 AND DWG#147A5600.;[05] VERIFIED COMPLETE STEP 1.;[06] CORRECTED CORROSION LEVEL;[07] VERIFIED ALL STEPS COMPLETE.