Service difficulty report · Shear Tie · Boeing 7377H4

Difficulty date
October 30, 2023
Submitted
November 7, 2023
Operation
Air carrier
Aircraft
N792SW
Make and model
Boeing 7377H4
Aircraft serial
27887
Aircraft time
77,105 hours, 45,931 cycles
Part
Shear Tie
Part number
UNKNOWN
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

CORROSION ON SHEAR TIE P/N 143A3010-123 BS 400 BETWEEN STR'S 21L AND 22L<[01] UPDATED STEPS 1-5 AND MEASUREMENT PARAMETERS.;[02] TASK CARD COMPLETED.;[03] REMOVED COROSION ON SHEAR TIE; (REMOVED OF DAMAGED MATERIAL ON EDGE) DIMENSION X= WITH OF MATERIAL REMOVED: 0.250' IAW SRM 51-10-02 PARAGRAPH 15.EVALUATED REWORKED AREA; MATERIAL LOSS 0.250' ON AT EDGE FOUND OUT ALLOWABLE DAMAGE LIMITS IAW SRM 53-00-07-1A-1. REMOVED SHEAR TIE. FABRICATED A REPLACEMENT; AND INSTALLED NEW SHEAR TIE; IAW SRM 51-40-05; AMM 51-21-72-370-804; SRM 51-40-02; DWG 143A7902 REV: -; DWG 143A1211 REV: -;[04] VERIFIED CORRECTIVE ACTION #3<BR>VERIFIED MEASUREMENTS

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