Service difficulty report · Floorbeam · Boeing 73779P

Difficulty date
August 12, 2019
Submitted
March 15, 2022
Operation
Air carrier
Aircraft
N7832A
Make and model
Boeing 73779P
Aircraft serial
30657
Aircraft time
48,200 hours, 30,861 cycles
Part
Floorbeam
Condition
Corroded
Location
Main Cabin
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*** BS 986 FLOORBEAM HAS CORROSION AT SEVERAL NUTPLATE LOCATIONS LBL 43 - RBL 43; WL 208 / REMOVED CORROSION FROM BS986 FLOOR BEAM IN SEVERAL LOCATIONS LBL43-RBL43 WL208 MOST MATERIAL REMOVED AT RBL43; 2' X 1' X .042' ORIGINAL THICKNESS .150' FOUND TO BE OUT OF LIMITS PER SRM 53-70-51-1A-1 REPAIRED PER EA# 1-A53-8241 REV 3

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