Service difficulty report · None · Boeing 73776N

Difficulty date
August 22, 2021
Submitted
October 4, 2021
Operation
Air carrier
Aircraft
N7822A
Make and model
Boeing 73776N
Aircraft serial
32596
Aircraft time
59,949 hours, 29,584 cycles
Part
None
Condition
Corroded
Location
Fuselage
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 NEAR FASTENER HOLE ON BULKHEAD FLANGE UPPER SURFACE AT BS 260 RBL 9.5 WL 208. ; / [01] REMOVED CORROSION NEAR FASTENER HOLE BS260 RBL9.5 WL208 1'X1' AREA I.A.W SRM 51-10-02-0G-0; [02] REMOVED NUTPLATE BS260 RBL10 WL208 I.A.W SRM 51-40-02-0G-0; [03] VERIFIED CORROSION REMOVED PER SRM 51-10-02.; [04] REQUEST UT INSPECTION;HFEC OPEN HOLE INSPECTION AND HFEC SURFACE INSPECTION.; [05] UT INSPECTED BLEND IAW 737 NDTM PART 4 51-00-00 PROCEDURE 2; LOWEST THICKNESS = 0.089'<BR>ET INSPECTED BLEND AND HOLE IAW 737 NDTM PART 6 51-00-00 PROCEDURE 23 AND PROCEDURE 16; NO CRACKS NOTED.<BR>CAL ID IS000450 N500D<BR>CAL ID ATS2031 E650; [06] REQUEST G.V.I OF THE DAMAGED AREA; ADJACENT AND UNDERLYING STRUCTURES TO VERIFY NO ADDITIONAL DAMAGE; [07] ACCOMPLISHED GVI; NO ADDITIONAL DAMAGE AT REPAIR AREA; ADJACENT AND UNDERLYING STRUCTURE; OK TO PROCEED. PER SRM 51-10-02.; [08] EDIT TO CORRECTIVE ACTION #5:<BR>ERRANTLY WROTE 0.089' AS REMAINING THICKNESS.<BR><BR>REMAINING THICKNESS IS ACTUALLY 0.087'; [09] VERIFIED COMPLETION OF EA 21-153-02555; [10] VERIFIED ALL STEPS ARE COMPLETE.; [11] VERIFIED ALL RII STEPS ARE COMPLETE.

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