Service difficulty report · Crease Beam · Boeing 7377H4

Difficulty date
March 6, 2020
Submitted
April 14, 2020
Operation
Air carrier
Aircraft
N918WN
Make and model
Boeing 7377H4
Aircraft serial
29843
Aircraft time
41,374 hours, 24,603 cycles
Part
Crease Beam
Condition
Corroded
Location
Fuselage
Stage of operation
IN
How discovered
V
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

PASSENGER CABIN AFT WET AREA BETWEEN STA 989.5 +7' AND 947.5 RBL 51 AREA WL 208.1 R2 DOOR INNER CRESE BEAM CHORD TOP AND SIDE SURFACES AS MARKED IS CORRODED IN SEVERAL AREAS / REMOVED CORROSION ON R2 DOOR CREASE BEAM STA 989.5 RBL 51 WL 205 VERIFIED WITH 10X MAG. IAW B-737 SRM 51-10-02-0G-0. VERIFIED MAT. LOSS ORG 'T' .080; MAT LOSS .012; REMAINING MAT .068 FOUND TO BE OUT OF LIMITS. AAR TOOL 36646 DUE 05OCT20 IAW B-737 SRM 53-20-13-1A-1 FIG 103 DETAIL D. REMOVED AND REPLACED DAMAGED CREASE BEAM. IAW B-737 SRM 51-40-02-0G-0 AND DRAWING 147A8501 REV: A. ATAG# WN3366 PN 147A8540-8

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