Service difficulty report · Splice Strap · Boeing 73776N

Difficulty date
August 27, 2021
Submitted
October 5, 2021
Operation
Air carrier
Aircraft
N7885A
Make and model
Boeing 73776N
Aircraft serial
33379
Aircraft time
58,530 hours, 28,804 cycles
Part
Splice Strap
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 FOUND AT AFT CARGO FLOOR BOARD SPLICE STRAP AT STA 767 + 5. ; / [01] REMOVED CORROSION AT AFT CARGO FLOOR BOARD SPLICE STRAP STA 767.5 AS PER REF B737 SRM 51-10-02-0G-0.; [02] VERIFIED. REMOVED CORROSION AT AFT CARGO FLOOR BOARD SPLICE STRAP STA 767.5.; [03] PERFORMED UT THICKNESS INSP. ON REWORKED AREAS IAW B737 NDT PART 4; 51-00-00; PROCEDURE 3. MIN. THICKNESS 0.060'<BR>TOOL: OLYMPUS 27MG B/C: 172139 DUE: 04/01/22; [04] EVALUATED REWORKED FLOOR BOARD SPLICE STRAP AREA; ORIGINAL THICKNESS .070; LOST MATERIAL .010; REMAINING MATERIAL .060; FOUND TO BE OUT OF LIMITS AS PER REF B737 SRM 53-00-53-1A-1 FIG 103.; [05] RECEIVED NEW SPLICE STRAP (TEE). SPLICE STRAP WILL BE INSTALLED ON CUSTOMER CARD #TTG8Q004DXG5.; [06] VERIFIED STEPS 3;4 AND 5

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