Service difficulty report · Support · Boeing 73779P

Difficulty date
December 10, 2021
Submitted
January 12, 2022
Operation
Air carrier
Aircraft
N7868K
Make and model
Boeing 73779P
Aircraft serial
29364
Aircraft time
46,433 hours, 31,343 cycles
Part
Support
Condition
Corroded
Location
Fuselage
Stage of operation
UK
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*** TOP SURFACE OF FLOOR SUPPORT BS 270 LBL 7 TO RBL 7 ;UNDERNEATH PNL 211 AF ; / [01] REMOVED CORROSION ON TOP SURFACE OF FLOOR SUPPORT BS 270 LBL 7 TO RBL 7 UNDERNEATH PANEL 211AF. MAXIMUM ALLOWABLE DAMAGE REMOVAL PERMITTED IS 10%. ORIGINAL THICKNESS 0.055' THICKNESS REMAINING 0.053'; DAMAGE REMOVED 0.002'. AREA REWORKED FOUND TO BE WITHIN LIMITS IAW SRM 53-10-51-1A<BR><BR>TOOL ID: 165543<BR>DUE 29 JULY 22; [02] VERIFIED 1;OK TO TREAT/PRIME AREA; [03] TREATED AND PRIMED AREA AT TOP SURFACE FLOOR SUPPORT STA 270 LBL 7 TO RBL 7 UNDERNEATH PANEL 211AF IAW AMM 51-21-41-370-802 AND AMM 51-21-72-370-804; [04] VERIFIED 3;COMPLETE

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