Service difficulty report · Floor Support · Boeing 73776N

Difficulty date
August 4, 2020
Submitted
September 3, 2020
Operation
Air carrier
Aircraft
N7884G
Make and model
Boeing 73776N
Aircraft serial
30133
Aircraft time
62,884 hours, 25,819 cycles
Part
Floor Support
Part number
147A8801
Condition
Corroded
Location
Bs 947-967
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

CORROSION ON INTERCOSTAL AT AREA AFT OF ACB BS947 - BS967 RBL43 WL190. / REMOVED CORROSION ON INTERCOSTAL AT AREA AFT OF BS947-BS967 RBL967 WL190 IAW SRM 51-10-02. MAX MATERIAL IN 1.25'LX0.75'WX0.009' DEPTH AREA FROM AN ORIGINAL THICKNESS 0.040' MATERIAL LOSS 0.009'. FOUND TO BE OUT OF LIMITS IAW SRM 53-70-15-1A-1 ALLOWABLE DAMAGE 1. REMOVED AND REPLACED INTERCOSTAL BS947-967 RBL43 IAW SRM 51-40-02 AND IAW DWG #147A8801.

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