Service difficulty report · Skin · Boeing 767322

Difficulty date
August 16, 2021
Submitted
August 18, 2021
Operation
Air carrier
Aircraft
N673UA
Make and model
Boeing 767322
Aircraft serial
29241
Aircraft time
75,712 hours, 15,940 cycles
Part
Skin
Part number
112T47024
Condition
Cracked
Location
Lt Wing
Stage of operation
IN
How discovered
V
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

WHILE ACCOMPLISHING EA 5725-01003 (ORIGINAL REV.) OP06 PREVENTIV E MODIFICATION,1 EA. CODE A FASTENER HOLE AND 1EA CODE B FASTNEN ER HOLE ARE FOUND CRACKED ON LHW#2 LOWER MACHINE SKIN PN 112T470 2-4 AS SHOW IN FIQURE 1. THE CRACK LENGTHS ARE OUT OF DWG 767-94 70 SH 1 REPAIR LIMIT FOR CODE A AND B FASTENER HOLES. THIS ECRA PROVIDES INTERIM REPAIR INSTRUCTIONS. REPAIRED PER ECRA. ACCOMPLISH INITIAL INSPECTIONS OF PART 2 OF THE LATEST REVISION OF EC5725-01086 ON OR BEFORE THE AIRCRAFT REACHES107,711 TOTAL F LIGHT HRS OR 27940 TOTAL FLT CYCLES, WHICHEVER OCCURS FIRST. PER REPEAT INSPECTION AT INTERVALS NOT TO EXCEED 32000 FLIGHT HOURS OR 12000 FLT CYCLES, WHICHEVER OCCURS FIRST. BEFORE THE ACFT REACHES 107,711 FLIGHT HOURS OR 27,940 CYCLES, WHICHEVER COMES FIRST. PERFORM REPEAT INSPECTION AT INTERVALS NOT TO EXCEDD 32,000 FLIGHT HOURS OR 12000 CYCLES WHICHEVER COMES FIRST. PER ECRA 5725-01086 ACP INITIAL INSPECTIONS PER PART 2 ON OR TOMC-APPROVAL FROM SC1ELBYC COMMENT TOMC APPROVED : QC REVIEWED TOMC APPROVED : QC REVIEWED RECORDS UPDATE NOTE:CRACK WAS FOUND ON RHW#2 LOWER MACHINE SKIN NOT THE LHW #2 LOWER MACHINE SKIN. INIT: 107,711 TAFH OR 27,940 TAFC WHICHEVER OCCURS FIRST WILL AUTO ITO TO RIR (-0269) RIR: 32,000 FH OR 12,000 FC WHICHEVER OCCURS FIRST ...RJS