Service difficulty report · Torque Box · Boeing 74747UF

Difficulty date
April 1, 2021
Submitted
April 2, 2021
Operation
Air carrier
Aircraft
N492MC
Make and model
Boeing 74747UF
Aircraft serial
29253
Aircraft time
93,536 hours, 16,163 cycles
Part
Torque Box
Condition
Corroded
Location
Horizontal Stab
Stage of operation
IN
How discovered
V
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 - DAMAGE ON LH HST TORQUE BOX TOP SKIN PANEL UPPER SURFACT OUTBOARD OF STAB STA 165.64. STRINGER 3. REMOVE THE AFFECTED FASTENERS IAW SRM 51-40-02 REV 91. BLENDED OUT THE DAMAGE AREA IAW SRM 55-10-01 REV 91. PFM NDT INSP REFER TO JOB CARD ATTACHING SHEET NO 0263113 AND DATA SHEET NO 5615112-1. ACCOMPLISHED EI NO T2021A55M-676 REV 2. JOB COMPLETED AND CONDITION CHECK NORMAL.

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