Service difficulty report · Floor Support · Boeing 7378H4

Difficulty date
January 31, 2021
Submitted
February 22, 2021
Operation
Air carrier
Aircraft
N8611F
Make and model
Boeing 7378H4
Aircraft serial
36892
Aircraft time
27,919 hours, 12,310 cycles
Part
Floor Support
Condition
Corroded
Location
Zone 200
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

BS 950; LBL 26; WL 208; CORROSION ON TOP SIDE OF FLOOR BEAM INTERCOSTAL; MARKED IN BLACK / EVALUATED I/B FLOOR BEAM INTERCOSTAL AS 100% MATERIAL LOSS OUT-OF-LIMITS. REMOVED INTERCOSTAL. VERIFIED NEW FLOOR BEAM INTERCOSTAL AS PN 147A5660-3 ATAG# WN2086. LOCATED & DRILLED INTERCOSTAL INSTALLED NEW FLOOR BEAM INTERCOSTAL STA 950 LBL 26 WL 208 IAW SRM 51-40-02-0G-0 & DWG 147A5650 REV A APPLIED CIC IAW AMM 51-21-91-620-802 P/N 147A5660-3

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