Service difficulty report · Skin Panel · Boeing 7377H4

Difficulty date
September 19, 2021
Submitted
November 3, 2021
Operation
Air carrier
Aircraft
N793SA
Make and model
Boeing 7377H4
Aircraft serial
27888
Aircraft time
67,300 hours, 39,722 cycles
Part
Skin Panel
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

SURFACE CORROSION AT FLIGHT DECK FLOOR SKIN PANEL BETWEEN STA 259.5 AND STA 270 ;S-17L ;WL 208.1. REMOVED THE CORROSION IAW SRM. 51-10-02-0G-0. PERFORMED UT THICKNESS INSPECTION ON REWORKED AREA IAW NDT PART 4 51-00-00 PROCEDURE 3. MIN. THICKNESS IS 0.059'. ORIGINAL MAT 0.063' MATERIAL REMAINING 0.059' MATERIAL REMOVED 0.004', FOUND TO BE WITHIN LIMITS IAW SRM 53-10-51-1A-1 FIG 105 DETAIL C. TREATED AND PRIMED AREA IAW AMM51-21-72-370-804.

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