Service difficulty report · Support · Boeing 7377H4

Difficulty date
April 21, 2022
Submitted
May 9, 2022
Operation
Air carrier
Aircraft
N927WN
Make and model
Boeing 7377H4
Aircraft serial
36889
Aircraft time
45,530 hours, 27,478 cycles
Part
Support
Condition
Corroded
Location
Fwd Cargo
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 CARGO BAY AFT BULKHEAD L/H PANEL LOWER SUPPORT AT LBL 25 BS 500D. / [01] REMOVED CORROSION PER SRM 51-10-02. LOCATION AFT BULKHEAD LOWER RAIL; ORIGINAL PART THICKNESS PER SRM 53-30-08; BAC1517-2818 IS 0.071' FOUND WHITING LIMITS IAW SRM 53-30-08-1A-1. <BR><BR>OK TO APPLY CHEMICAL CONVERSION AND PRIMER.<BR><BR>TOOL USED: MICROMETER POINT GAUGE<BR> <BR>ID:ATS1672 <BR>SN:65092939 <BR>DUE:03/2023[10] LOCATED AN DRILLED NEW FWD CARGO BAY AFT BULKHEAD L/H PANEL LOWER SUPPORT LOCATED AT BS 500D LBL 25 IAW SRM 51-40-05 AND DWG 143A9481 1D:0014; REV: -<BR><BR>OK TO INSTALL.;[11] INSPECTED & VERIFIED CORRECTIVE ACTION ITEMS 9 & 10. OK TO INSTALL NEW FCB AFT BULKHEAD L/H PANEL LOWER SUPPORT LBL 25; BS 500D GIVEN. (AFT L/H BULKHEAD TRANSITION ANGLE);[12] INSTALLED NEW FCB AFT BULKHEAD L/H PANEL LOWER SUPPORT LBL 25; BS 500D (AFT L/H BULKHEAD TRANSITION ANGLE) IAW SRM 51-40-02-0G-0 AND DWG 143A9481 1D:0014; REV: -<BR><BR>APPLIED CIC ON AFT L/H BULKHEAD TRANSITION ANGLE IAW SRM 51-20-01.;[13] VERIFIED CORRECTIVE ACTION 12;[14] UPDATED MEASUREMENT

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