Service difficulty report · Strap · Boeing 7377H4

Difficulty date
May 2, 2023
Submitted
June 1, 2023
Operation
Air carrier
Aircraft
N285WN
Make and model
Boeing 7377H4
Aircraft serial
32536
Aircraft time
51,630 hours, 31,054 cycles
Part
Strap
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 AFT RH SHEAR WEB STRAP BS 1025-1030 RBL 3 WL 208.<[01] SRM 53-70-51-1A-1 IS APPLICABLE ALLOWABLE DAMAGE; UPDATED TABLE;[02] SRM 53-70-51-1A-1 IS NOT APPLICABLE ALLOWABLE DAMAGE; UPDATED TABLE; SRM 51-10-02-0G-0 IS APPLICABLE REPLACEMENT OF PART.;[03] SRM 53-70-51-1A-1 IS NOT APPLICABLE ALLOWABLE DAMAGE; UPDATED TABLE; SRM 51-10-02-0G-0 IS APPLICABLE REPLACEMENT OF PART.;[04] VERIFIED CORRECTIVE ACTION 2 AND 3<BR><BR>VERIFIED MEASUREMENT TABLE;[05] REMOVED AFT RH SHEAR WEB STRAP FROM BS 1025-1030 RBL 3 WL 208 PER SRM 51-40-02-0G-0.;[06] CERTIFIED ACTION 5;[07] RECEIVED FROM TOOL ROOM NEW STRAP P/N 147A5744U1 LOT: 1516833-1. LOCATED AND DRILLED NEW SHEAR WEB STRAP PER SRM 51-40-02-0G-0 DWG 147A5730. REQUEST OK TO INSTALL.;[08] CERTIFIED ACTION 7;[09] VERIFIED CORRECTIVE ACTIONS STEP 7; OK TO INSTALL GIVEN.;[10] INSTALLED NEW STRAP BS1016-1030 RBL3 WL208 I.A.W SRM 51-40-02-0G-0 AND BOEING DWG 147A5730;[11] VERIFIED CORRECTION ACTION ITEM 10.;[12] VERIFIED ALL CORRECTION ACTIONS 1-11 CARD COMPLETE.

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