Service difficulty report · Strap · Boeing 737

Difficulty date
August 18, 2021
Submitted
April 29, 2022
Operation
Air carrier
Aircraft
N208WN
Make and model
Boeing 737
Aircraft serial
29856
Aircraft time
52,294 hours, 30,932 cycles
Part
Strap
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

SUPPLEMENTAL INFORMATION: CORROSION ON STRAP AT AFT CARGO BAY BS842 RBL18 WL162. ; / [01] REMOVED CORROSION ON STRAP AT AFT CARGO BAY BS842; RBL18; WL162; REWORKED AREA: L=1.3'; W=1'; D=0.020'; NOMINAL THICKNESS= 0.100'; WAS FOUND OUT OF LIMIT IAW SRM 51-10-02 AND 53-60-15-1A-1; [02] TOOL USED: DEPTH GAUGE ID: ATS1737; S/N: UNKNOWN; DUE: 07/2022; [03] VERIFIED DAMAGE REMOVAL ON STRAP HAS EXCEEDED LIMITS PER SRM 53-60-15-1A-1.; [04] REMOVED STRAP AT AFT CARGO BAY BTW BS 774-861;RBL 18 WL 162 IAW SRM 51-40-02-0G-0.; [05] RECEIVED STRAP WITH ITEM 146A8128-14; LOT.1462160-1. LOCATED AND DRILLED STRAP AT AFT CARGO BAY BTW BS 774-861;RBL 18 WL 162 IAW SRM 51-40-05-0G-0; DWG#146A8120; DWG#146A8340. OK TO INSTALL.; [06] UPDATED MEASUREMENTS SECTION; [07] VERIFIED RECEIPT OF NEW STRAP; VERIFIED LOCATE AND DRILL PER SRM 51-40-05; DWG#146A8120; DWG#146A8340; OK TO INSTALL; [08] INSTALLED STRAP AT AFT CARGO BAY BTW BS 774-861;RBL 18 WL 162 IAW SRM 51-40-05-0G-0; DWG#146A8120; DWG#146A8340.; [09] UPDATED PARTS USAGE; ALL MAINTENANCE ITEMS COMPLETE; [10] VERIFIED INSTALLED STRAP AT AFT CARGO BAY BETWEEN BS 774-861;RBL 18 WL 162 IAW SRM 51-40-05-0G-0; DWG#146A8120; DWG#146A8340.; [11] VERIFIED ALL STEPS COMPLETE.