Service difficulty report · Intercostal · Boeing 73771B

Difficulty date
November 2, 2022
Submitted
November 14, 2022
Operation
Air carrier
Aircraft
N7854B
Make and model
Boeing 73771B
Aircraft serial
29372
Aircraft time
45,663 hours, 30,470 cycles
Part
Intercostal
Condition
Cracked
Location
Bs 500a-500b
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 CARGO BAY INTERCOSTAL CRACKED BS 500A - 500B WL 155 LBL 25. FOUND TO BE OUT OF LIMITS IAW SRM 53-00-53-1A-2; PAR. 4. C. (2). (A). FIG.103 DETAIL C. REMOVED INTERCOSTAL IAW SRM 51-40-02-0G-0. LOCATED AND DRILLED A NEW INTERCOSTAL IAW SRM 51-40-02-0F-0 AND DWG 143A7505. FABRICATED REPAIR ANGLE IAW SRM 53-30-53-2R-1, TABLE 201, ITEM 2, FIG. 202. APPLIED CHEMICAL CONVERSION COATING IAW SOPM 20-43-03. APPLIED PRIMER TO ANGLE REPAIR IAW SOPM 20-43-03 AND SOPM 20-41-02. INSTALLED REPAIR ANGLE AND INTERCOSTAL IAW SRM 53-30-53-2R-1 REPAIR 1 STEP 4 M-N-O-P AND DWG 143A7505 REV B.

More about the Boeing 737-71B