Service difficulty report · Floorbeam · Boeing 7378Q8

Difficulty date
September 11, 2020
Submitted
October 7, 2020
Operation
Air carrier
Aircraft
N801SY
Make and model
Boeing 7378Q8
Aircraft serial
30332
Aircraft time
63,730 hours, 24,799 cycles
Part
Floorbeam
Condition
Damaged
Location
Bs 312
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

FOUND TOOLING DAMAGE ON SURFACE OF UPPER CHORD AT STA 312 LBL 10 TO LBL 53 WL 208. TOOLING DAMAGE FOUND ON SURFACE OF UPPER CHORD STA 312 FLOOR BEAM LBL 12 1" L X .7" W X .011" D LBL 16.5 1" L X .7" W X .013" D BOTH FOUND TO BE OUT OF LIMITS, IAW SRM 53-10-51-1A-1 FIGURE 105 DETAIL C. REPAIRED STA 312 FLOOR BEAM UPPER CHORD LBL 12-LBL 16.5, IAW SRM 53-10-51-2R-15. TOOLING DAMAGE FOUND ON STA 312 FLOOR BEAM UPPER CHORD LBL 29-LBL 52 REMOVED IN AN AREA OF 23" L X .7" W X .011" D FOUND TO BE WITHIN LIMITS, IAW SRM 53-10-51-1A-1 FIGURE 105 DETAIL C. APPLIED CHEMICAL CONVERSION COATING AND PRIMED BLEND AREA LBL 29-LBL 52, IAW AMM 51-21-41-370-803 AND AMM 51-21-72-370-804 57901U.

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