Service difficulty report · Support · Boeing 7377BD

Difficulty date
September 9, 2021
Submitted
April 27, 2022
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
146A750250
Condition
Corroded
Location
Aft 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 BS727A+14 RBL24 WL152 FLOOR TO SIDEWALL SUPPORT ; CORROSION BS727A+14 RBL24 WL152 FLOOR TO SIDEWALL SPPORT / [01] REMOVED CORROSION ON FLOOR TO SIDEWALL SUPPORT AT BS 727+14'; LBL24; WL 152 PER SRM51-10-02-0G-0 MEASURE L=7.5'X W=1'X D=0.010' MAX. MAT LOSS IS 0.010'; REMAINING THICKNESS IS 0.030'; ORIGINAL THICKNESS IS 0.040' (BAC1496-444) FOUND TO BE OUT OF LIMITS; REWORKED AREA PER SRM53-00-53-1A-2; ALLOWABLE DAMAGE PARAG. 4.A (2) DETAIL (E) FIG 103.- MICROMETER;S/N 65092939 DUE 03/2022.; [02] THIS DISCREPANCY WILL ACCOMPLISHED ON CARD TTG8Q006H1B2; [03] VERIFIED THIS DISCREPANCY WILL BE ADDRESSED ON CC# TTG8Q006H1B2

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