Service difficulty report · Strap · Boeing 7377CT

Difficulty date
June 1, 2021
Submitted
July 12, 2021
Operation
Air carrier
Aircraft
N7823A
Make and model
Boeing 7377CT
Aircraft serial
32749
Aircraft time
61,112 hours, 30,940 cycles
Part
Strap
Condition
Corroded
Location
Bs 1023-1024
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. 1023-1024; L.B.L. 3; W.L. 208.1. ; / [01] REMOVED CORROSION ON STRAP BS1023-1024 LBL3 WL 208 IAW SRM 51-10-02. AREA OF REMOVAL 1'X6' REMOVED .020' MATERIAL. ORIGINAL THICKNESS .071'. NO ALLOWABLE LIMITS IN SRM. PART REQUIRES REPLACEMENT.; [02] UPDATED TABLE; [03] VERIFIED TABLE INPUT; [04] VERIFIED CORROSION OUT OF LIMITS IAW SRM 51-10-02.; [05] REMOVED OUT OF LIMITS SHEAR WEB TENSION STRAP AT B.S. 1023-1024 ;L.B.L. 3; W.L. 208.1 PER SRM 51-10-02-0G-0-A20048.; [06] VERIFIED STEP; [07] RECEIVED NEW SHEAR WEB TENSION STRAP P\N 147A5620-3; LOCATED AND DRILLED FASTENER HOLES IN NEW STRAP IAW SRM 51-40-05 AND DWG 147A5600 I.D.:0032; REV:B. REQUESTING OK TO INSTALL.; [08] VERIFIED; [09] INSTALLED NEW STRAP AT B.S. 1023-1024;L.B.L 3; W.L. 208.1; IAW SRM 51-40-02 AND DWG 147A5600.; [10] VERIFIED WORK ACCOMPLISHED; [11] REPLACEMENT OF STRAP ACCOMPLISHED PER SRM51-40-02 AND DWG 147A5600; [12] REJECTION - 3 RIVETS WITH STEPPED BUCKTAILS; APPROX BS 1020-1022; LBL 3; WL 208. GENERATED FAULT TTG8Q005DS73; [13] VERIFIED REPLACEMENT OF STRAP ACCOMPLISHED PER SRM51-40-02 AND DWG 147A5600.; [14] VERIFIED PROPER TRASFER OF REJECTED ITEM; ALL STEPS COMPLETE.

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