Service difficulty report · Support · Boeing 73771B

Difficulty date
November 10, 2021
Submitted
December 1, 2021
Operation
Air carrier
Aircraft
N7862A
Make and model
Boeing 73771B
Aircraft serial
33009
Aircraft time
48,859 hours, 32,794 cycles
Part
Support
Condition
Corroded
Location
Fuselage
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 AFT CARGO BAY FLOOR TO SIDEWALL SUPPORT BS 887+7 RBL 22 WL 171 ; / [01] EVALUATED CORROSION; FOUND 0.015 REMOVED FROM ORIG 0.040 IN 1'X1' AREA FOUND TO BE OUT OF LIMITS PER SRM 53-00-53-1A-2 USING DIAL DEPTH GAUGE ATS 1225 S/N UNKNOWN; [02] VERIFIED OUT OF LIMITS; [03] LOCATED AND DRILLED ACB FLOOR TO SIDEWALL SUPPORT BS887-BS947; WL171; RBL22 PER SRM 51-40-05-0G-0 AND DWG147A7500; [04] VERIFIED CORRECTIVE ACTION 3.

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