Service difficulty report · Strap · Boeing 7377H4

Difficulty date
May 31, 2023
Submitted
July 5, 2023
Operation
Air carrier
Aircraft
N962WN
Make and model
Boeing 7377H4
Aircraft serial
36963
Aircraft time
38,452 hours, 23,554 cycles
Part
Strap
Part number
UNKNOWN
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 ON TENSION STRAP AT AFT PASSENGER CABIN BS1016+13 LBL3 WL208.<[01] CORROSION ON TENSION STRAP AT AFT PASSENGER CABIN FROM BS1016+13 LBL3 WL 208 FOUND TO BE OUT OF LIMITS DUE TO NO SRM ALLOWABLE DAMAGE. THE STRUCTURAL ITEM WILL BE REMOVED AND REPLACED IAW SRM 51-10-02 PAR 9C;[02] REMOVED TENSION STRAP FROM BS1006-BS1029 LBL3 IAW SRM 51-40-02;[03] VERIFIED CORRECTIVE ACTIONS 1 AND 2;[04] LOCATED AND DRILLED NEW TENSION STRAP P/N#147A5620-3 FROM BS1006-BS1029 LBL3 IAW SRM 51-40-05 AND IAW DGW#147A5600. OK TO INSTALL;[05] VERIFIED CORRECTIVE ACTION ITEM 4; OK TO INSTALL.;[06] INSTALLED TENSION STRAP FROM BS1006-BS1029 LBL3 IAW SRM 51-40-02 AND IAW DWG#147A5600;[07] RII VERIFIED CORRECTIVE ACTION ITEM 6.;[08] VERIFIED CORRECTIVE ACTION ITEMS AND MEASUREMENT FIELDS; CARD COMPLETE.

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