Service difficulty report · Scuff Plate · Boeing 7377H4

Difficulty date
September 22, 2023
Submitted
October 11, 2023
Operation
Air carrier
Aircraft
N421LV
Make and model
Boeing 7377H4
Aircraft serial
32452
Aircraft time
71,597 hours, 42,416 cycles
Part
Scuff Plate
Part number
UNKNOWN
Condition
Cracked
Location
Zn 100 Fus Lower
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

AFT CARGO BAY FWD CORNER SCUFF PLATE IS CRACKED<[01] WELDED CORNER SCUFF PLATE USING ER4043 FILLER ROD LOT NUMBER 1131216 PER SRM 53-60-15-2R-1 REPAIR 1 PARAGRAPH 4.B.(4) AND BAC5975.APPLIED A CHEMICAL CONVERSION COATING TO THE BARE ALUMINUM SURFACES PER SOPM 20-43-03;TYPE 2 CLASS A OR C AND SRM 53-60-15-2R-1 REPAIR 1 PARAGRAPH 4.B.(6) APPLIED TWO LAYERS OF BMS 10-11 TYPE 1 PRIMER TO THE INNER SURFACES OF THE CORNER SCUFF PLATE; REFER TO SOPM 20-41-02 AND SRM 53-60-15-2R-1 REPAIR 1 PARAGRAPH 4.B.(7);[02] VERIFIED COMPLETION OF CORRECTIVE ACTIONS 1 AND MEASUREMENT TABLE.

More about the Boeing 737-7H4