Service difficulty report · Angle · Boeing 737*

Difficulty date
February 12, 2022
Submitted
March 21, 2022
Operation
Air carrier
Aircraft
N460WN
Make and model
Boeing 737*
Aircraft serial
32464
Aircraft time
58,773 hours, 34,967 cycles
Part
Angle
Condition
Cracked
Location
L1 Door
Stage of operation
UK
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

CABIN PASSENGER UPPER ARE OF L1 DOOR TA 312 BET ST4 TO ST5 SUPPORT HAS A CRACK / [01] REMOVED FASTENERS AS NECESSARY AT L-1 DOOR FS 3121 BETWEEN STR 4L-5L;IN REF B737-700 SRM 53-10-07-2R-1 PARRAGRAPH 4.A.B;[02] TRIM OUT DAMAGED AREA OF THE UPPER CHORD IN REDF B737-700 SRM 53-10-07-2R-1 PARRAGR 4.C;[03] PERFORMED HFEC AT CUT OUT IAW NDTM PART 6; 51-00-00 PROCEDURE 23. NO CRACKS;[04] PERFORMED HFEC HOLE PROBE INSPECTION ON ALL REMOVED FASTENER LOCATIONS IAW NDTM PART 6; 51-00-00; PROCEDURE 16. NO CRACKS.;[05] FABRICATED NEW REPAIR PARTS AND LOCATED AND DRILLED IN REF B737-700 SRM 53-10-07-2R-1 PARRAGRAPH 4.G.H.I.J.K;[06] INSTALLED EWIS AND FOD PROTECTION AREA AT L-1 DOOR REPAIR IN REF B737-700 AMM 20-60-07-913-801;[07] VERIFIED STEPS 1; 2; 5 AND 6;[08] OK TO TREAT AND PRIME;[09] TREATED AND APPLIED PRIMER AT REPAIR PARTS AT L-1 DOOR IN REF B737-700 SRM 51-20-01-0G-0;[10] VERIFIED STEP 9;[11] OK TO INSTALL PART;[12] INSTALLED REPAIR AT UPPER CHORD AT STA 312; BETWEEN STRINGERS 4 AND 5 L PER REF 737 SRM 53-10-07-2R-1 FIG 203;[13] REMOVED EWIS PROTECTION AT REPAIR ON L1 DOOR AT STA 312; PER REF 737 AMM 20-60-07-913-801;[14] LATE ENTRY: FABRICATED REPAIR ANGLE REF. B737-7 SRM 53-10-07-2R-1 REPAIR 1; AND HEAT TREATED REF. BAC5602; TAG#399622.;[15] TRIMMED DAMAGED AREA AND INSTALLED REPAIR AT PASSENGER CABIN FRAME STA. 312; STR5; WL285; REF. B737-7 SRM 53-10-07-2R-1 REPAIR 1;[16] VERIFIED STEP 12; 13; 14 AND 15