Service difficulty report · Skin · Boeing 757222

Difficulty date
June 24, 2019
Submitted
June 30, 2019
Operation
Air carrier
Aircraft
N590UA
Make and model
Boeing 757222
Aircraft serial
28708
Aircraft time
80,368 hours, 20,788 cycles
Part
Skin
Part number
143N3320
Condition
Dented
Location
Bs 620
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

L/H UPPER FUS ABOVE S-17L,BS 620 FWD OF L-2 DOOR INSTALLED DOUBL ER REPAIR SKIN DENT AFT LOWER CORNER MKD DOT 60-112. REPAIR IS A CATEGORY B REQUEST SUPPLEMENT INSPECT THRESHOLD 37500 F/C AFTER A/C DILIVERY PER SRM 53-00-01 REPAIR 29 PAGE 212 TABLE 206. L/H UPPER FUS ABOVE S-17L,BS 620 FWD OF L-2 DOOR INSTALLED DOUBL ER REPAIR SKIN DENT AFT LOWER CORNER MKD DOT 60-112. REPAIR IS A CATEGORY B REQUEST SUPPLEMENT INSPECT THRESHOLD 37500 F/C AFTER A/C DILIVERY PER SRM-53-00-01 REPAIR 29 PAGE 212 TABLE 206. PERFORMED L/T INSPECTION (THICKNESS) ON DOUBLER REPAIR AREA L/H UPPER FUS ABOVE S-17L BSG20 IAW NDTM PART 4, 51-00-10 PROCEDURE 2 CHEM-MIL AREA FOUND TO BE 0.050". SKIN AREA FOUND TO BE 0.071". ADD EMP:V891378 FUS ABOVE S-17L,BS 620 FWD OF L-2 DOOR AT 37,500 FLIGHT CYCLES (FC). REPEAT INSPECTIONS AT 6,000 FC THEREAFTER FOR REMAINING LIFE OF AIRCRAFT. OKAY TO CARRY FORWARD FOR INSPECTION OF DOUBLER REPAIR L/H UPPER TOMC-APPROVAL FROM SC1ELBYC COMMENT QC TOMC APPROVED QC REVIEWED RECORDS UPDATE...UK/U354344 INIT: 37,000 TAFC WILL ITO TO RIR(-0154) RIR: 6,000 FC...UK/U354344