Service difficulty report · None · Boeing 73776N

Difficulty date
August 18, 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
None
Condition
Corroded
Location
R/H Wing
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

RT WING SLAT #6 T/E WEDGE TOP SURFACE I/B CORNER HAS CORROSION. ; / [01] REMOVED CORROSION AT R/WING #6 SLAT UPPER SURFACE I/B CORNER AS REFERENCE B737-700 SRM 51-10-02-0G-0; [02] CERTIFIED; [03] VERIFIED CORROSION REMOVAL; [04] PERFORMED UT THICKNESS INSP ON REWORKED AREA. IAW B 737 NDT PART 4 51-00-00 PROCE 3. TOOL 27MG. BC 172139. CALIB DUE 4-1-22. MINNI THICK 0.018'.; [05] AFTER UT THICKNESS INSP. FOUND REWORKED AREA WIHING LIMITS AS REFERENCE B737-700 SRM 57-42-01-1A-1 STEP 4.B.2 FIGURE 105 ORIGINAL MAT.020' MATERIAL REMOVED.002' MATERIAL REMAINING .018'; [06] VERIFIED LIMITS; [07] OK TO ALODINE AND PRIME & TOP COAT; [08] TREATED; PRIMED AND TOP COATED REWORKED AREA AS REFERENCE B737-700 SRM 51-20-01-0G-0; AMM 51-21-72-370-804 AND AMM 51-21-73-370-803; [09] VERIFIED STEP # 8

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