Service difficulty report · Shield · Boeing 7377H4

Difficulty date
May 1, 2022
Submitted
May 13, 2022
Operation
Air carrier
Aircraft
N928WN
Make and model
Boeing 7377H4
Aircraft serial
36890
Aircraft time
45,601 hours, 27,673 cycles
Part
Shield
Part number
146A812711
Condition
Corroded
Location
Aft Cargo Bay
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

AFT CARGO FWD SHIELD WITH CORROSION SPOTS / [01] REMOVED LIGHT CORROSION AS PER REF B737-700 SRM 51-10-02-0G-0;[02] VERIFIED 1;[03] EVALUATED AREA: ORIGINAL THICKNESS 0.050' . MATERIAL REMOVED 0.001' . REMAINING THICKNESS 0.049' FOUND TO BE WITHIN LIMITS AS PER B737-700 SRM 53-00-53-1A-2 STEP 4.A FIGURE 103; DETAIL D. TOOL USED B/C# 165543; CAL DUE 01 SEP 2022;[04] VERIFIED STEP 3. OK TO TREAT AND PRIMER.;[05] TREATED AND PRIMED REWORKED AREAS ON AFT CARGO FWD SHIELD AS PER B737-700 AMM 51-21-41-370-803 & 51-21-72-370-804;[06] VERIFIED STEP 5.

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