Service difficulty report · None · Boeing 7377H4

Difficulty date
September 4, 2022
Submitted
October 6, 2022
Operation
Air carrier
Aircraft
N491WN
Make and model
Boeing 7377H4
Aircraft serial
33867
Aircraft time
56,646 hours, 33,713 cycles
Part
None
Condition
Corroded
Location
Fwd Galley
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 BS 344 LBL57 WL208.1 AT FWD GALLEY AREA 2022-486071 / [01] TOOL USED: ULTRASONIC THICKNESS GAGE; P/N: 45MG; S/N: 130060401; CAL DUE DATE: 26-JAN-23;[02] EVALUATED REWORKED AREA ON INNER CHORD LOCATED BS 344 LBL57 WL208.1 AT FWD GALLEY AREA AND FOUND WITHIN LIMITS IAW B737-700 SRM 53-10-15-1A-2 PARAGRAPH 4.E; 2(A) FIG 103 SHEET 4 DETAIL G; MEASURE OF REWORK: L:2.765?; W:1.453?; TOOL USED:DIGITAL CALIPER: P/N: 500-196-30; S/N: A20227356; DUE DATE: 30-AUG-23. <BR>SEE INDIVIDUAL SIGNOFF BELOW;[03] CORRECTED STEP 2. EVALUATED REWORK AREA ON INNER CHORD LOCATED BS 344 LBL57 WL208.1 AT FWD GALLEY AREA AND FOUND WITHIN LIMITS IAW B737-700 SRM 53-10-15-1A-2 PARAGRAPH 4.E; 2(A) FIG 103 SHEET 4 DETAIL G; MEASURE OF REWORK: L:2.765?; W:1.453?; TOOL USED:DIGITAL CALIPER: P/N: 500-196-30; S/N: A20227356; DUE DATE: 30-AUG-23. <BR>SEE INDIVIDUAL SIGNOFF BELOW;[04] CORRECTED STEP 2. EVALUATED REWORK AREA ON INNER CHORD LOCATED BS 344 LBL57 WL208.1 AT FWD GALLEY AREA AND FOUND WITHIN LIMITS IAW B737-700 SRM 53-10-15-1A-2 PARAGRAPH 4.E; 2(A) FIG 103 SHEET 4 DETAIL G; MEASURE OF REWORK: L:2.765?; W:1.453?; TOOL USED:DIGITAL CALIPER: P/N: 500-196-30; S/N: A20227356; DUE DATE: 30-AUG-23. <BR>SEE INDIVIDUAL SIGNOFF BELOW

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