Service difficulty report · Doubler · Boeing 7377H4

Difficulty date
June 21, 2022
Submitted
July 28, 2022
Operation
Air carrier
Aircraft
N486WN
Make and model
Boeing 7377H4
Aircraft serial
33852
Aircraft time
59,624 hours, 35,506 cycles
Part
Doubler
Part number
146A8120
Condition
Corroded
Location
Aft Cargo Bay
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 CARGO BAY TENSION STRAP ATTACH DOUBLER AT RBL 19 BS 787+13. / [01] VERIFIED APPLICABILITY PER SRM NOT ALLOWABLE DAMAGE PARTS THAT DO NOT HAVE ENTRIES ARE CALLED REPAIRABLE BY REPLACEMENT IAW SRM 51-10-02-0G-0 STEP 9C;[02] REMOVED ON AFT CARGO BAY TENSION STRAP ATTACH DOUBLER AT RBL 19 BS 787+13 IAW SRM 51-40-02;[03] VERIFIED CORRECTIVE ACTION STEPS 1 AND 2.;[04] RECEIVED ON AFT CARGO BAY TENSION STRAP ATTACH DOUBLER AT RBL 19 BS 794 TO BS 794+6 ITEM 146A8128-18 PO#863482 LOCATED AND DRILLED IAW SRM 51-40-05 AND DWG146A8120.<BR>OK TO INSTALL;[05] CORRECTED MEASUREMENT 14;[06] VERIFIED CORRECTIVE ACTION 4 AND 5.<BR><BR>MEASUREMENT TABLE CORROSION LEVEL MUST BE COMPLETED;[07] CORRECTED MEASUREMENT 19;[08] VERIFIED MEASUREMENT TABLE CORRECTION.<BR><BR>OK TO INSTALL GIVEN;[09] INSTALLED ON AFT CARGO BAY TENSION STRAP ATTACH DOUBLER AT RBL19 BS794 TO BS 794+6 IAW SRM 51-40-02 AND DWG146A8120;[10] VERIFIED CORRECTIVE ACTION 9

More about the Boeing 737-7H4