Service difficulty report · Cargo Track · Boeing 7377H4

Difficulty date
July 29, 2021
Submitted
September 15, 2021
Operation
Air carrier
Aircraft
N447WN
Make and model
Boeing 7377H4
Aircraft serial
33720
Aircraft time
58,733 hours, 34,620 cycles
Part
Cargo Track
Condition
Corroded
Location
Bs 889 Rbl 2
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 RAIL AT AFT CARGO BAY BS889 RBL2 WL168. ; / [01] REMOVED CORROSION ON RAIL AT AFT CARGO BAY BS889 RBL2 WL168; DIMENSION L=1' W=0.8' D=0.012'; WAS FOUND OUT OF LIMIT IAW SRM 53-00-53-1A-2; [02] REMOVED RAIL AT AFT CARGO BAY BTW. BS.887-BS947;RBL3;WL168.IAW SRM 51-40-02-0G-0. RECEIVED RAIL WITH ITEM 75352990;P/N147A7501-26 LOCATED AND DRILLED RAIL AT AFT CARGO BAY BTW BS887-BS947; IAW SRM 51-40-05-0G-0; DWG#147A7500. OK TO ISTALL.; [03] VERIFIED OUT OF LIMITS PER SRM 53-00-53-1A-2; LOCATE AND DRILL UP OF NEW RAIL PER SRM 51-40-05 AND DWG 147A7500; OK TO INSTALL.; [04] LATE ENTRY STEP #1 : USED TOOL :MICROMETER ATS 1672; S/N 65092939; DUE DATE:03/2022.; [05] VERIFIED CAL TOOL ENTRY.; [06] INSTALLED RAIL AT AFT CARGO BAY BTW. BS.887-BS947;RBL3;WL168.IAW SRM 51-40-02-0G-0 DWG#147A7500. ALL MAINTENANCE ACTIONS ARE COMPLETE REQUEST FINAL BUYOFF.; [07] UPDATED PART INSTALL INFORMATION.; [08] VERIFIED RAIL WAS FABRICATED AND INSTALLED PER SRM 51-40-02-0G-0 AND DWG# 147A7500.

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