Service difficulty report · None · Boeing 73776N

Difficulty date
August 19, 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
System (JASC)
5755 · Spoilers
Part
None
Condition
Corroded
Location
L/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

LT WING I/B SPOILER TOP SURFACE HAS SUPERFICIAL CORROSION.(SHOWING BARE METAL). ; / [01] REMOVED CORROSION AT L/WING GROUND SPOILER(#6) UPPER SURFACE AS REFERNECE 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. BC172139. CALIB DUE 4-1-22. MINNI THICK 0.013'.; [05] FOUND REWORKED AREA OUT OF LIMITS DO TO EXPOSED INNER CORE(HONEYCOMB) AS REFERENCE B737-700 SRM 57-70-01-1A-1; [06] VERIFIED OUT OF LIMITS; [07] REMOVED LT WING I/B SPOILER IN REF WITH AMM 27-62-12-000-801; [08] OK TO INSTALL LT WING I/B SPOILER.; [09] CORRECTION TO STEP 8. OK TO INSTALL LT WING I/B SPOILER NO.6 (RII); [10] INSTALLED LT WING I/B SPOILER AS PER AMM 27-62-12-400-801<BR>B/C 167851 EXPIRATION DATE 12/14/21; [11] VERIFIED LT WING I/B SPOILER INSTALLATION.; [12] ACCOMPLISHED INBOARD GROUND SPOILER ADJUSTMENT REFERENCE AMM 27-62-00-820-804;AND PERFORMED INBOARD GROUND SPOILER FUNCTIONAL TEST REFERENCE AMM 27-62-12-000-802;CHECKED NORMAL. TORQUE WRENCH B/C 16658.; [13] VERIFIED STEP # 12.; [14] COMPLETED VERIFIED; [15] COMPLETED VERIFIED

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