Service difficulty report · Skin · Boeing 737230

Difficulty date
January 14, 2003
Submitted
December 30, 2003
Operation
Air carrier
Aircraft
N821AL
Make and model
Boeing 737230
Aircraft serial
23155
Part
Skin
Part number
6546559
Condition
Corroded
Location
Fusleage
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

CUTOUT DAMAGED SKIN ARE AT BS 908 MAINTAINING A .50 INCH MINIMUM RADIUS AND 2D EDGE MARGIN. VERIFIED CRACK REMOVED USING HFEC METHOD. ENLARGED TRIMMED AREA BY .04 INCH AS AN INSURANCE CUT. FABRICATED TWO STRUCTURAL FILLERS, A REPAIR FILLER, DOUBLER, AND TRIPLER FROM 2024-T3 CLAD MATERIAL. FINISHED ALL BARE ALUMINUM WITH ALODINE AND TWO COATS BMS 10-11, TYPE 1 PRIMER. INSTALLED REPAIR PARTS WET WITH BMS 5-95 SEALANT BETWEEN THE FRAYING SURFACES. APPLIED A FILLET SEAL OF BMS 5-95 AROUND THE EDGES. REPAIR COMPLETED IAW SRM 53-30-3, FIGURE 48, SHEET 55. AIRCRAFT RETURNED TO SERVICE. (M)