Service difficulty report · Intercostal · Boeing 73776N

Difficulty date
August 24, 2021
Submitted
September 28, 2021
Operation
Air carrier
Aircraft
N7822A
Make and model
Boeing 73776N
Aircraft serial
32596
Aircraft time
59,949 hours, 29,584 cycles
Part
Intercostal
Condition
Cracked
Location
Fuselage
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

CRACKED FLOOR SUPPORT BS 344-360 BL 0 WL 208 ; / [01] ET INSPECTED SUSPECTED CRACK IAW 737 NDTM PART 6 51-00-00 PROCEDURE 23; VERIFIED CRACK EXISTS.<BR>CAL ID IS000450 N500D; [02] REMOVED INTERCOSTAL AT BS344-360 BL0 WL 208; PER SRM 51-40-02. LOCATED AND DRILLED NEW INTERCOSTAL PER SRM 51-40-05 AND DWG141A5400. REQUEST OK TO INSTALL.; [03] VERIFIED LOCATION AND DRILL UP PER SRM 51-40-05 AND DWG 141A5400. FLOORBOARD HOLES STILL REQUIRED; [04] INSTALL NEW INTERCOSTAL BS 344-360 BL 0 WL208 IAW SRM 51-40-02 AND DWG 141A5400; [05] VERIFIED INSTALLATION AND DRILLING OF FLOORBOARD HOLES IN INTERCOSTAL PER SRM 51-40-02 AND DWG 141A5400.

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