Service difficulty report · Door · Boeing 7377Q8

Difficulty date
March 15, 2022
Submitted
April 18, 2022
Operation
Air carrier
Aircraft
N7877H
Make and model
Boeing 7377Q8
Aircraft serial
29359
Aircraft time
50,381 hours, 27,028 cycles
Part
Door
Condition
Corroded
Location
Service Door
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 TOILET SERVICE DOOR 145AL INNER SURFACE AROUND BONDING JUMPER. / [01] SRM 52-40-01-1A-4 IS FOUND TO BE APPLICABLE FOR REPAIR.<BR><BR>BLENDED CORROSION ON TOILET SERVICE DOOR 145AL INNER SURFACE AROUND BONDING JUMPER PER SRM 51-10-02-0G-0. REMOVED .003' MATERIAL INSIDE POCKET AREA WHICH IS .O60' THICK PER SRM 52-40-01-0I-4 (IDENTIFICATION) TABLE 2. UNABLE TO REMOVE CORROSION BECAUSE ALLOWABLE LIMITS IN SRM 52-40-01-1A-4 FIGURE 103 ARE ALREADY EXCEEDED AND BLENDING IS STILL REQUIRED. THEREFORE PART IS OUT OF LIMITS AND ONLY REPAIABLE BY REPLACEMENT PER SRM 51-10-02-0G-0 STEP 9. A. (2).<BR><BR>TOOL USED: <BR>ID:4678B<BR>SN:UNKNOWN<BR>DATE:12/2021<BR>DUE:12/2022;[02] REMOVED TOILET SERVICE DOOR PANEL 145AL TO PREPARE FOR REPLACEMENT PER AMM 52-49-07-000-801.;[03] VERIFIED CORRECTIVE ACTION ITEMS 1 AND 2.;[04] INSTALLED NEW TOILET SERVICE DOOR (145AL) USING EXISTING HARDWARE PER AMM 52-49-07-400-801. BONDING CHECK OF GROUNDING STRAP GOOD.<BR><BR>TOOL USED: BONDING METER<BR>ID:ATS1255<BR>S/N:DC003959<BR>DATE:10/2021<BR>DUE:10/2022;[05] VERIFIED CORRECTIVE ACTION 4.;[06] INSTALLED NEW PLACARD P/N:BAC27DPA5116 ON TOILET SERVICE DOOR 145AL IAW SOPM 20-50-05 STEPS 3.C.D.E.;[07] CORRECTED MEASUREMENTS;[08] VERIFIED ALL STEPS COMPLETED;[09] VERIFIED ITEMS 6;7;8 CORRECTIVE ACTIONS.

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