Service difficulty report · Attach Angle · Boeing 7377H4

Difficulty date
July 6, 2023
Submitted
August 15, 2023
Operation
Air carrier
Aircraft
N229WN
Make and model
Boeing 7377H4
Aircraft serial
32498
Aircraft time
58,665 hours, 35,024 cycles
Part
Attach Angle
Part number
UNKNOWN
Condition
Corroded
Location
Zn 200 Fus Top
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

CORROSION ON FWD SERVICE DOOR MOP SILL ATTACH ANGLE RBL 60 WL 208 BS 310-328.<[01] VERIFIED APPLICABILITY OF SRM 53-10-15-1A-1 ALLOWABLE DAMAGE 2;[02] REMOVED NUT PLATES COMMON TO FWD SERVICE DOOR MOP SILL ATTACH ANGLE IAW SRM 51-40-02-0G-0 FOR ACCESS. BLENDED AND REMOVED CORROSION DAMAGE FROM ATTACH ANGLE REMOVED .004 FROM ORIGINAL .100 WITHIN LIMITS ALL IAW SRM 53-10-15-1A-1 STEPS 2;3 AND 4 FIG 103 (D) USING CALIPER PER2242 CAL DUE 01/2024 AND DIAL DEPTH GAGE ATS ID ATS2678 CAL DUE 05/2024;[03] UPDATED MEASUREMENT REQUREMENT;[04] COMPLETED STEP 1;[05] COMPLETED STEP 2;[06] UPDATED STEP 2 COMPLETED;[07] INSTALLATION COMPLETED ALL STEPS VERIFIED IAW SRM 51-40-02 DWG# 141A8430 REV B;[08] REMOVED COOROSION OF FWD SERVICE DOOR MOP SILL ATTACH ANGLE FOUND WITHIN LIMITS AND REINSTALLED FWD SERVICE DOOR MOP SILL ATTACH ANGLE ON NEW FWD SERVICE MOPSILL IAW SRM 51-40-02-0G-0 AND DWG 141A8310.;[09] VERIFIED CORRECTIVE ACTION STEP 8.;[10] TASK CARD COMPLETE.

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