Service difficulty report · Support · Boeing 73776Q

Difficulty date
March 30, 2020
Submitted
May 12, 2020
Operation
Air carrier
Aircraft
N551WN
Make and model
Boeing 73776Q
Aircraft serial
30280
Aircraft time
59,009 hours, 36,487 cycles
Part
Support
Condition
Corroded
Location
Fuselage
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*** FCB LH FLOOR-TO-SIDEWALL SUPPORT HAS CORROSION ON FASTENER HOLES; BS 500C-500D; LBL 21; WL 156 / CORROSION ON SIDEWALL SUPPORT FOUND OUT OF LIMITS DUE TO PROXIMITY TO FASTENER HOLES BS500C-500D; CUT & REMOVED BS480+10'-500D FABRICATED NEW PART FROM BAC 1496-444 M# 1428695-1; FABRICATED SPLICE @ BS 480+10' FROM BAC 1498-444 M1428895-1; LOCATED; DRILLED APPLIED CHEMICAL CONVERSION COATING PRIMED & INSTALLED PER SRM 53-00-53-2R-5; SRM 51-40-05-0G-0 SRM 51-40-02-0G-0; DWG 143A7501; DWG 143A9481

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