Service difficulty report · Angle · Boeing 7377H4

Difficulty date
March 12, 2023
Submitted
April 11, 2023
Operation
Air carrier
Aircraft
N280WN
Make and model
Boeing 7377H4
Aircraft serial
32533
Aircraft time
52,166 hours, 31,378 cycles
Part
Angle
Condition
Corroded
Location
Zn 100 Fus Lower
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 INNER CHORD LOCATED AT LEVEL STR 17L BS 303.9 LBL 55 WL 208.1 AT FWD GALLEY AREA 2023-180925<[01] TOOL USED ULTRASONIC THICKNESS INSTRUMENT P/N 45MG S/N 130064101 DUE DATE 12-OCT-23;[02] REPLACED INNER CHORD LOCATED AT LEVEL STR 17L BS 303.9 LBL 55 WL 208.1 AT FWD GALLEY AREA IAW SRM 51-10-02 ITEM 9 AND DWG 141A8310 AND DWG 140A9810 REV. - .;[03] CORRECTED STEP 2.<BR>REPLACED INNER CHORD LOCATED AT LEVEL STR 17L BS 303.9 LBL 55 WL 208.1 AT FWD GALLEY AREA IAW SRM 51-10-02 ITEM 9 AND DWG 141A8310 AND DWG 140A9810 REV. - <BR>SEE INDIVIDUAL SIGNOFFS BELOW.;[04] REPLACED INNER CHORD LOCATED AT LEVEL STR 17L BS 303.9 LBL 55 WL 208.1 AT FWD GALLEY AREA IAW SRM 51-10-02 ITEM 9 AND DWG 141A8310 AND DWG 140A9810 REV. - <BR>SEE INDIVIDUAL SIGNOFFS BELOW.<BR>CERTIFIED AS RII

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