Service difficulty report · Floorbeam · Boeing 7377H4

Difficulty date
July 5, 2019
Submitted
March 14, 2022
Operation
Air carrier
Aircraft
N752SW
Make and model
Boeing 7377H4
Aircraft serial
29804
Aircraft time
69,256 hours, 40,475 cycles
Part
Floorbeam
Condition
Corroded
Location
Aft Cargo Bay
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 TRACK AROUND FASTENER HOLE AT AFT CARGO BAY BS927+8 LBL3 WL176. / REMOVED CORROSION ON TRACK AROUND FASTENER HOLE AT AFT CARGO BAY BS 927+8 LBL 3 I.A.W SRM 51-10-02-0G-0 AND ELEVAULATED MAX. MATERIAL REMOVED. L=2.5' X W=1.0' X MINIMUM REMAINING THICKNESS 0.073' FROM ORIGINAL THICKNESS=0.080' AND FOUND TO BE WITHIN LIMITS I.A.W. SRM 53-00-53-1A-2 PARAGRAPH 4.B.(2) FIGURE 103 DETAIL 'G'; APPLIED CHEMICAL CONVERSION COATING AND PRIMER I.A.W. SRM 51-20-01-0G-0 ON BLENDED AREA.

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