Service difficulty report · Angle · Boeing 7377H4

Difficulty date
June 22, 2022
Submitted
July 28, 2022
Operation
Air carrier
Aircraft
N486WN
Make and model
Boeing 7377H4
Aircraft serial
33852
Aircraft time
59,624 hours, 35,506 cycles
Part
Angle
Part number
148A86353
Condition
Corroded
Location
Apu
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

APU COMPT CUTOUT; RH SIDE; ANGLE AT RBL 25 IS CORRODED AT NUTPLATE LOCATIONS (MARKED) / [01] UPDATED STEPS.<BR><BR>VERIFIED APPLICABILITY; NO FOUND ALLOWABLE DAMAGE ON SRM;[02] VERIFIED CORROSION REMOVAL PER SRM 51-10-02 STEP 15. SRM HAS NO ALLOWABLE LIMITS FOR AFFECTED STRUCTURE. MEASUREMENT TABLE VERIFIED.;[03] COMPLETED STEPS 1-6.;[04] CORRECTED ANGLES P/N.;[05] REMOVED 3EA ANGLES LOCATED AT APU COMPT CUTOUT; RH SIDE AND RBL 25 PER REF SRM 51-40-02-0G;[06] LOCATED AND DRILLED NEW 3EA ANGLES P/N: 148A8635-5;P/N: 148A8635-4;P/N: 148A8635-3; LOCATED AT APU COMPT CUTOUT; RH SIDE AND RBL 25 I.A.W SRM 51-40-05-0G-0 AND DWG 148A8540.AND OK TO INSTALL.;[07] VERIFIED CORRECTIVE ACTION 4; 5 AND 6 COMPLETED. OK TO INSTALL COMPLETED;[08] INSTALLED NEW 3EA ANGLES P/N: 148A8635-5;P/N: 148A8635-4;P/N: 148A8635-3; PER REF SRM 51-40-02-0G-0 AND DWG 148A8540;[09] VERIFIED CORRECTIVE ACTION 8 INSTALLATIONS;[10] TASK COMPLETE

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