Service difficulty report · Cargo Track · Boeing 7377H4

Difficulty date
July 31, 2021
Submitted
September 15, 2021
Operation
Air carrier
Aircraft
N491WN
Make and model
Boeing 7377H4
Aircraft serial
33867
Aircraft time
53,758 hours, 31,898 cycles
Part
Cargo Track
Condition
Corroded
Location
Bs 934
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 TRACK AT AFT CARGO BAY BS934 RBL13 WL176. ; / [01] EVALUATED CORROSION ON TRACK; FOUND 0.020 REMOVED FROM ORIG 0.071 IN 1'X1' AREA; FOUND TO BE OUT OF LIMITS PER SRM 53-00-53-1A-2 USING MICROMETER PART#4566A S/N UNKNOWN; [02] VERIFIED CORRECTIVE ACTION ENTRY 1.; [03] REMOVED CARGO TRACK SECTION; BS 887-947; RBL 13; WL 176 PER SRM 51-40-02-0G-0.; [04] LOCATED AND DRILLED NEW CARGO TRACK AT ACB BS947 - BS887; RBL13; WL176 PER SRM 51-40-05-0G-0 AND DWG 147A7500. OK TO INSTALL; [05] VERIFIED LOCATE AND DRILL; [06] VERIFIED CORRECTIVE ACTION ITEMS 4 AND 5; OK TO INSTALL; [07] INSTALLED NEW CARGO TRACK AT ACB BS947 - BS887; RBL13; WL176 PER SRM 51-40-02-0G-0 AND DWG 147A7500; [08] VERIFIED CORRECTIVE ACTION ITEM 7; [09] VERIFIED COMPETE

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