Service difficulty report · Attach Angle · Boeing 7377BD

Difficulty date
April 15, 2022
Submitted
May 11, 2022
Operation
Air carrier
Aircraft
N7736A
Make and model
Boeing 7377BD
Aircraft serial
35109
Aircraft time
50,096 hours, 25,534 cycles
Part
Attach Angle
Condition
Cracked
Location
Cabin Floor
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 ATTACH ANGLE AT MID PASSENGER CABIN ABOVE PRESSURE DECK BS691 RBL1 WL205. / [01] VERIFIED THE APPLICABILITY OF SRM 51-10-02-0G-0;[02] REMOVED THE CRACKED ATTACH ANGLE FROM MID PASSENGER CABIN ABOVE PRESSURE DECK BS 691 RBL 1 WL 205;[03] FORMED NEW ANGLE MATERIAL USED 7075T0 ; 0.050' LOT # 1474582 IAW DWG #273A9112 ; SENT TO O.S.S FOR HEAT TREAT TO T73;[04] REMOVED THE CRACKED ATTACH ANGLE FROM MID PASSENGER CABIN ABOVE PRESSURE DECK BS 691 RBL 1 WL 205 IAW SRM 51-40-02;[05] ADDED REFERENCE;[06] CORRECTION TO STEP 3. LOT # SHOULD BE 1474582-1;[07] RECEIVED NEW ATTACH ANGLE FROM O.S.S AFTER BEING HEAT TREATED TO T73 AND PENETRANT INSPECTED ON CUSTOMER R/O # 865076-SWA ; LOCATED AND DRILLED NEW ANGLE IAW SRM 51-40-05 AND DWG # 273A9112 OK TO TREAT AND PRIME;[08] VERIFIED ITEM 7 CORRECTIVE ACTIONS. <BR>OK TO TREAT AND PRIME.;[09] APPLIED A CHEMICAL CONVERSION COATING AND PRIMER TO THE NEW ATTACH ANGLE IAW SRM 51-20-01 AND SOPM 20-44-04 OK TO INSTALL;[10] VERIFIED CORRECTIVE ACTION 9.<BR>OK TO INSTALL;[11] VERIFIED CORRECTIVE ACTIONS 1; 3; AND 6;[12] INSTALLED MID PASSENGER CABIN ATTACH ANGLE ABOVE PRESSURE DECK BS 691 RBL 1 WL 205 IAW SRM 51-40-02 AND DWG # 273A9111;[13] VERIFIED CORRECTIVE ACTION 12;[14] VERIFIED COMPLETE

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