Service difficulty report · Angle · Boeing 7378H4

Difficulty date
October 6, 2022
Submitted
October 31, 2022
Operation
Air carrier
Aircraft
N8507C
Make and model
Boeing 7378H4
Aircraft serial
41531
Aircraft time
20,008 hours, 9,579 cycles
Part
Angle
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

L/H BS663 UPPER ATTACH ANGLE IS CRACKED ON VAPOR BARRIER LBL8 WL167.68 / [01] VERIFIED APPLICABILITY OF SRM 57-10-10-2R-5;[08] HFEC INSPECTED OPEN HOLES IAW 737 NDTM PART 6 51-00-00 PROCEDURE 16. <BR>NO CRACKS NOTED. <BR>EQUIP USED: <BR>-NORTEC 600 ID: ATS2353 CAL DUE: 01/23 <BR>-MINIMITE ID: ATS1411 CAL DUE: 07/23;[09] RECEIVED REPAIR PARTS REPAIR ANGLE 1EA MATERIAL USED 2024T3 CLAD 0.063' LOT# 1489987-1 RO 886635-SWA AND SPLICE DOUBLER 1EA MATERIAL USED 2024T3 CLAD 0.071' LOT# 14524821 RO 886639-SWA. LOCATED; DRILLED; APPLIED CHEMICAL CONVERSION COATING AND PRIMER ON REPAIR PARTS AND REPAIR AREA IAW SRM 57-10-10-2R-5 PAR. 4E-K.;[10] RECEIVED REPAIR PARTS REPAIR ANGLE 1EA MATERIAL USED 2024T3 CLAD 0.063' LOT# 1489987-1 RO 886635-SWA AND SPLICE DOUBLER 1EA MATERIAL USED 2024T3 CLAD 0.071' LOT# 1452482-1 RO 886639-SWA. LOCATED; DRILLED; APPLIED CHEMICAL CONVERSION COATING AND PRIMER ON REPAIR PARTS AND REPAIR AREA IAW SRM 57-10-10-2R-5 PAR. 4E-K.;[14] FASTENERS COMMON REPAIR ANGLES IN CENTER INTERNAL FUEL TANK WL 167.68 BS 663 LBL 8 WILL BE SEALED ON FAULT TTG8Q00F85K3;[15] INSTALLED REPAIR PARTS AT BS 663 LBL 6-22 WL 167 IAW SRM 57-10-10-2R-5 PAR. 4L;

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