Service difficulty report · Angle · Boeing 7378

Difficulty date
July 1, 2023
Submitted
July 21, 2023
Operation
Air carrier
Aircraft
N8706W
Make and model
Boeing 7378
Aircraft serial
42559
Aircraft time
12,476 hours, 5,539 cycles
Part
Angle
Part number
UNKNOWN
Condition
Corroded
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

(A204; DOT 13) AFT CARGO STA 727H TO 847; LBL 23; WL 161; Z-ANGLE HAS CORROSION AROUND FASTNER HOLES.<[01] REMOVED CORROSION Z ANGLE AND CHECK WITH 10X MAGNIFYING GLASS IAW SRM 51-10-02-0G-0 ITEM 14;[02] EVALUATED DAMAGE : ORIG;'T' .040 REMAINING .031 LOSS .009 FOUND OUT OF LIMITS IAW SRM 53-00-53-1A-2 TOOL USED AAR #36649 DUE 08/02/23;[03] VERIFIED ITEMS 1&2;[04] OK TO INSTALL NUT PLATES;[05] INSTALLED NUT PLATES IAW B737 SRM 53-00-53-2R-5 STEP 4.K.;[06] VERIFIED STEP 5<BR>OK TO CIC;[07] APPLIED CIC IAW B737 SRM 53-00-53-2R-5 STEP 4.N.;[08] VERIFIED STEP 7 C/W;[09] OK TO INSTALL REPAIR PARTS;[10] INSTALLED ZEE CHANEL REPAIR PARTS BETWEEN STA 727H + 14.0 IN AND 787 + 9.0 IN AT LBL 21.00 IAW B737 SRM 53-00-53-2R-5 STEP 4.L.;[11] VERIFIED STEP 10 C/W;[12] OK TO CIC;[13] APPLIED CIC REPAIR AREA IAW AMM51-21-91-620-802;[14] VERIFIED ITEM 13<BR>AUDIT C/W

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