Service difficulty report · Attach Angle · Boeing 73771B

Difficulty date
October 21, 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
Attach Angle
Condition
Cracked
Location
Bs 400
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 INTERCOSTAL ATTACH ANGLE AT FWD CARGO BAY BS400 LBL25. MARKED. / [01] REMOVED INTERCOSTAL ATTACH ANGLE AT FCB BS 400; LBL 25 PER SRM 51-40-02-0G-0.;[02] LOCATED AND DRILLED NEW ANGLE (CLIP) P/N 143A7502U155 PER SRM 51-40-05-0G-0 AND DWG 143A7505. REQUEST OK TO INSTALL.;[03] LOCATED AND DRILLED NEW ANGLE (CLIP) P/N 143A7502U155 PER SRM 51-40-05-0G-0 AND DWG 143A7505. REQUEST OK TREAT AND PRIMER ON NEW HOLES.;[04] VERIFIED STEP 3 OK TO TREAT AND PRIMER GIVEN;[05] VERIFIED CORRECTIVE ACTION 2 OK TO INSTALL GIVEN;[06] INSTALLED NEW ANGLE (CLIP) P/N 143A7502U155 AT FCB BS 400 LBL 25 PER SRM 51-40-02-0G-0 AND DWG 143A7505.;[07] CHANGED ITEM 5 ON MEASUREMENTS TABLE.;[08] VERIFIED ACTION #6; VERIFIED MEASUREMENT FIELDS

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