Service difficulty report · Beam · Boeing 7377H4

Difficulty date
October 19, 2023
Submitted
January 3, 2024
Operation
Air carrier
Aircraft
N461WN
Make and model
Boeing 7377H4
Aircraft serial
32465
Aircraft time
64,738 hours, 38,739 cycles
Part
Beam
Part number
UNKNOWN
Condition
Corroded
Location
Zn 200 Fus Top
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 CREASE BEAM LOCATED BS 639 LBL 64 WL 208.1 AT PASSENGER CABIN 2023-652027<[01] TOOL USED: ULTRASONIC EQUIPMENT; P/N: 45 MG; S/N: 232017609; DUE DATE: 22-SEP-24.;[02] REPLACED CREASE BEAM SECTION LOC BTW BS616 + 12? TO BS 639 +9 ? LBL 64 WL 208.1 AT PASSENGER CABIN I.A.W. B737-700 DWG 144A5901 SHEET 36 REV '-' AND B737-700 SRM 51-40-02. SEE INDIVIDUAL SIGN-OFFS BELOW.;[03] REJECT STEP 8. TOOL MARK ON CREASE BEAM WEB RIVETS LOC BTW BS 639 LBL 64 WL 208.1 AT PASSENGER CABIN (3 EA. FAULT RAISED TTG8Q00PDDYL.;[04] CORRECTED STEP 2<BR>REPLACED CREASE BEAM SECTION LOC BTW BS616 + 12? TO BS 639 +9 ? LBL 64 WL 208.1 AT PASSENGER CABIN I.A.W. B737-700 SRM 51-10-02 ITEM 9; SRM 51-40-02 AND DWG 144A5901 SHEET 36 REV '-'. SEE INDIVIDUAL SIGN-OFFS BELOW.;[05] TASK CARD COMPLETED <BR>REPLACED CREASE BEAM SECTION LOC BTW BS616 + 12? TO BS 639 +9 ? LBL 64 WL 208.1 AT PASSENGER CABIN I.A.W. B737-700 SRM 51-10-02 ITEM 9; SRM 51-40-02 AND DWG 144A5901 SHEET 36 REV '-'. SEE INDIVIDUAL SIGN-OFFS BELOW.<BR>RII

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