Service difficulty report · Support · Boeing 7377H4

Difficulty date
December 3, 2021
Submitted
January 4, 2022
Operation
Air carrier
Aircraft
N234WN
Make and model
Boeing 7377H4
Aircraft serial
32502
Aircraft time
52,359 hours, 31,270 cycles
Part
Support
Condition
Corroded
Location
Bs 727a-767
Stage of operation
NR
How discovered
9
Nature of condition
O
Precautionary procedure
O

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

CORROSION; AFT CARGO FLOOR TO SIDEWALL SUPPORT; BS 727A TO BS 767 RBL 21 ; / [01] EVALUATED CORROSION ON FLOOR TO SIDEWALL SUPPORT FROM 727A-767 RBL 21 WL 156; FOUND DEEPEST MATERIAL REMOVED OF 0.015 FROM ORIG 0.040 FOUND TO BE OUT OF LIMITS PER SRM 53-00-53-1A-2 USING DIAL DEPTH GAUGE ATS 2678 S/N UNKOWN; [02] VERIFIED CORRECTIVE ACTIONS STEP 1.; [03] LOCATED AND DRILLED ACB FLOOR TO SIDEWALL SUPPORT BS727 - 767; RBL21; WL156 PER SRM 51-40-05-0G-0 AND DWG146A7500; [04] ADDED PART; [05] VERIFIED CORRECTIVE ACTION 3; 4.; [06] VERIFIED FLOOR TO SIDEWALL ANGLE WILL BE INSTALLED ON FAULT TTG8Q004ERAB JOB CARD STEP 37.

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