Service difficulty report · Support · Boeing 7377BD

Difficulty date
September 11, 2021
Submitted
October 1, 2021
Operation
Air carrier
Aircraft
N7751A
Make and model
Boeing 7377BD
Aircraft serial
36717
Aircraft time
43,609 hours, 22,223 cycles
Part
Support
Part number
143A7501186
Condition
Corroded
Location
Fwd Cargo Bay
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 ON FLOOR TO SIDEWALL SUPPORT AT FWD CARGO BAY BS500C+6 RBL23 WL156. ; / [01] REMOVED CORROSION ON FLOOR TO SIDEWALL SUPPORT AT FWD CARGO BAY BS500C+6; RBL 23 WL 156; MEASURE: L=.8' X W=.660' X D=.006' ORIGINAL THICKNESS 0.040' PER SRM 53-30-53-0I-2 IDENTIFICATION TABLE2 ITEM 1. REWORKED AREA FOUND OUT LIMITS IAW SRM 53-00-53-1A-2 ALLOWABLE DAMAGE 2PARAG. 4.A.(1) DETAIL E. USED TOOL : DEPTH GAGE ID: ATS2473. DUE DATE: 07/2022.; [02] CORRECTED MEASUREMENTS SECTION; [03] VERIFIED MATERIAL REMAINING THICKNESS OF THE FLOOR TO SIDEWALL SUPPORT AT BS500C+6 IS OUT OF LIMITS PER SRM 53-00-53-1A-2 ALLOWABLE DAMAGE 2PARAG. 4.A.(1) DETAIL E; [04] THIS CARD WILL BE ACCOMPLISHED WITH THE CARD #TTG8Q006H662.

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