Service difficulty report · Plate · Boeing 7377H4

Difficulty date
June 25, 2024
Submitted
August 5, 2024
Operation
Air carrier
Aircraft
N481WN
Make and model
Boeing 7377H4
Aircraft serial
29853
Aircraft time
66,500 hours, 39,674 cycles
Part
Plate
Condition
Cracked
Location
Zn 200 Fus Top
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

FWD CABIN L-1 DOOR CUTOUT AFT JAMB LOWER INB COVER PLATE APPEARS CRACKED @ LOWER HOLE STA 348.2 MKD DOT<[01] PERFORMED HFEC INSP. ON SUSPECTED CRACK IAW B737 NDT PART 6; 51-00-00; PROCEDURE 23. CRACK CONFIRMED (LENGTH 1') <BR>TOOL: NORTEC 600 B/C: 166316 DUE: 10/27/24;[02] STEP 1 ENTER IN ERROR;[03] REMOVED; FRABRICATED AND INSTALLED NEW FWD CABIN L-1 DOOR CUTOUT AFT JAMB LOWER INB COVER PLATE AS PER SRM-51-40-02-0G-0 ANDDWG#141A890.;[04] CORRECTION TO STEP 3: REMOVED; FRABRICATED AND INSTALLED NEW FWD CABIN L-1 DOOR CUTOUT AFT JAMB LOWER INB COVER PLATE AS PER SRM-51-40-02-0G-0 ANDDWG#141A8190;[05] CORRECTION TO STEP 4: REMOVED; FRABRICATED AND INSTALLED NEW FWD CABIN L-1 DOOR CUTOUT AFT JAMB LOWER INB COVER PLATE AT LOWER HOLE STA 348.2AS PER SRM-51-40-02-0G-0 ANDDWG#141A8190;[06] (RII) VERIFIED STEP:5;[07] CORRECTION STEP:6 (RII) VERIFIED STEP:5.<BR>AUDIT C/W REF MPM52.02.02

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