Service difficulty report · Stub Frame · Boeing 737752

Difficulty date
August 10, 2022
Submitted
August 29, 2022
Operation
Air carrier
Aircraft
N7848A
Make and model
Boeing 737752
Aircraft serial
34298
Aircraft time
48,870 hours, 27,337 cycles
Part
Stub Frame
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

CRACK FOUND AT UPPER HOLE OF STUB FRAME (I/B) AT R-1 DOOR CUT OUT IAW NDTM PART 6.51-00-00 PROCEDURE 16. CRACK IS AT 5 O'CLOCK POSITION .CRACK LENGTH 0.020' CRACK FOUND AT UPPER HOLE OF STUB FRAME (I/B) AT R-1 DOOR CUT OUT IAW NDTM PART 6.51-00-00 PROCEDURE 16. CRACK IS AT 5 O'CLOCK POSITION .CRACK LENGTH 0.020" / [01] APPLIED PAINT STRIPPING AT R-1 DOOR FWD UPPER JAMB OUTER SKIN PER B737-700 51-21-11-150-810.;[02] VERIFIED 1;[03] REMOVED STUB FRAME FROM FWD JAMB UPPER R-1 DOOR DOOR CUT OUT PER B737-700 SRM 51-40-02-0G-0.;[04] LOCATED AND PARTIALLY DRILL HOLES AT UPPER STUB FRAME PER SRM 51-10-02-0G-0;[05] COMPLETED DRILLED EXITING HOLES AT NEW STUB FRAME PER SRM 51-40-02-0G-0 AND 51-40-05-0G-0;[06] VERIFIED 3; 4 & 5;[07] OK TO TREAT AND PRIME FASTENER'S HOLES;[08] TREAT; PRIMER TOP COAT PER SRM 51-20-01-0G-0 AND AMM 51-21-72-370-804;[09] VERIFIED 8. OK TO INSTALL STUB FRAME;[10] MIXED BMS 5-95 SEALANT AT 7:30 AM 08-15-2022. SQUEEZE OUT TIME BY 3:30 PM 08-18-2022.;[11] PARTIALLY INSTALLED STUB FRAME AND DEPRESSOR ON R-1 DOOR FWD JAMB UPPER SIDE. PER SRM 51-40-02-0G-0; AND DWG 141A8370.;[12] VERIFIED 10 AND 11;[13] COMPLETED INSTALLATION OF STUB FRAME AND DEPRESSOR ON R-1 DOOR FWD JAMB UPPER SIDE. PER SRM 51-40-02-0G-0; AND DWG 141A8370.