Service difficulty report · Angle · Boeing 7378

Difficulty date
July 27, 2023
Submitted
August 16, 2023
Operation
Air carrier
Aircraft
N8708Q
Make and model
Boeing 7378
Aircraft serial
42566
Aircraft time
12,787 hours, 5,693 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

A 221 DOT 20; AFT CARGO COMPARTMENT BETWEEN STA 787 AND 727F TOP AND BOTTOM SKIN OF THE L/H/S ZEE ANGLE IS CORRODED IN SEVERAL AREAS AS MARKED<[01] REMOVED CORROSION VISUALLY INSPECTED CORRODED ARE WITH 10X MAGNIFIER<BR>NO DEFECTS NOTED I.A.W SRM 53-00-53-1A-2;[02] VERIFIED MATERIAL LOSE :<BR>BETWEEN STA727F-727H ORGINAL .040 REMOVED .004 REMAIN .0036 FOUND WITHIN LIMITS .<BR>BETWEEN STA 727H-727I RGINAL .040 REMOVED .007 REMAIN .033<BR>FOUND OUT OF LIMITS.<BR>BETWEEN STA727I-STA787 ORGINAL .040 REMOVED.004 REMAIN .036 FOUND WITHIN LIMITS USED AAR TOOL # 36649 DUE 07/25/2024 I.A.W SRM 53-00-53-1A-2 AND SRM53-60-53-0I-2;[03] VERIFIED ITEM 1&2;[04] REMOVED DAMAGED AREA OF L/H ZEE ANGLE BETWEEN STA 727G+10' - 727J+10' IAW B737-8 SRM 53-00-53-2R-6 PAR. 4 STEP B;[12] STARTED FABRICATING 'Z' ANGLE IAW SRM 53-00-53-2R-6;[13] FABRICATED 'Z' ANGLE AND SPLICES IAW SRM 53-00-5R-2R-6;[18] INSTALLED 'Z' ANGLE AND SPLICES IAW SRM 53-00-53-2R-6.;[19] VERIFIED ITEM 18;[20] OK TO APPLY CIC.;[21] APPLIED CIC ON AFT CARGO COMPARTMENT ON L/H/S ZEE ANGLE I.A.W AMM 51-21-91-701;[22] GLUED ON NUT PLATES ON AFT CARGO COMPARTMENT ON L/H/S ZEE ANGLE REPAIR I.A.W SRM 51-40-10-2R-0.<BR><BR>NOTE: GLUED APPLICATION TIME: 10:30 AM.;[23] REMOVED ELASTIC FROM N/P'S. CURE COMPLETE;[24] REPAIRED Z ANGLE C/W;[25] REMOVED ELASTIC FROM N/P'S. CURE COMPLETE. COMPLETED PUSH TEST IAW SRM 51-40-10-2R-0 TOOL #42641 CAL DUE 01/09/24;[26] VERIFIED STEPS 23-25.<BR>AUDIT C/W.

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