Service difficulty report · Baffle · Boeing 7377H4

Difficulty date
December 21, 2022
Submitted
January 19, 2023
Operation
Air carrier
Aircraft
N272WN
Make and model
Boeing 7377H4
Aircraft serial
32527
Aircraft time
52,973 hours, 31,748 cycles
Part
Baffle
Condition
Corroded
Location
Bs 747 Rbl 21
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 AFT CARGO BAY BAFFLE, RBL 21, BS 747+18. REMOVED CORROSION, ORIGINAL MATERIAL THICKNESS, 0.032', DAMAGE REMOVED 0.005', REMAINING THICKNESS 0.027'. DAMAGE EXCEED 10% OF ORIGINAL MATERIAL THICKNESS. FOUND TO BE OUT OF LIMIT IAW SRM 53-00-53-1A-2. REMOVED THE BAFFLE IAW SRM 51-40-02-0G-0. LOCATED AND DRILLED THE NEW BAFFLE IAW SRM 51-40-05-0G-0 AND DWG 146A7500, REV A. INSTALLED THE NEW BAFFLE, BS 747 - 767, RBL 21, WL 156 IAW SRM 51-40-02-0G-0, AND DWG 146A7500 REV A.

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