Service difficulty report · Angle · Boeing 7377H4

Difficulty date
August 23, 2021
Submitted
September 14, 2021
Operation
Air carrier
Aircraft
N912WN
Make and model
Boeing 7377H4
Aircraft serial
36621
Aircraft time
45,236 hours, 27,137 cycles
Part
Angle
Condition
Elongated
Location
Bulkhead Web
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

RIGHT VAPOR BARRIER WEB UPPER ANGLE HAS 12 HOLES THAT ARE ELONGATED ; / [01] PERFORMED HFEC ROTO INSP ON ELONGATED EXISTING FASTENER HOLES IAW B737 NDT PART 6; 51-00-00; PROCEDURE 16. NO CRACKS NOTED<BR>TOOL: NORTEC 600 B/C: 166317 DUE:10/12/2021<BR>TOOL: OLYMPUS MINIMITE B/C: 160006 DUE: 01/18/2022; [02] REAMED HOLES#1;2;3;4;5;6;7 AND 9 TO SIZE 0.191-0.202 AT R/H UPPER ATTACH ANGLE STA 663 IAW EA# 21-157-02522-WIP1; [03] REAMED HOLE#8;11 AND 12 TO SIZE 0.221-0.233 AT R/H UPPER ATTACH ANGLE STA 663 IWA EA#21-157-02522-WIP1 FG.1-1 SHEET 3; [04] REAMED HOLE #10 TO SIZE 0.254-0.265 AT R/H UPPER ATTACH ANGLE STA 663 IWA EA#21-157-02522-WIP1 FG.1-1 SHEET 3; [05] VERIFIED STEPS 2; 3 AND 4.; [06] INSTALLATION OF FASTENER AT REPAIRED ELONGATED HOLES ACCOMPLISHED ON CARD EA. 21-157-02522-WIP1; BARCODE:TTG8Q006AUES.; [07] VERIFIED STEP 6; [08] VERIFIED STEP 6

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