Service difficulty report · Skin · Boeing 737

Difficulty date
September 22, 2022
Submitted
September 23, 2022
Operation
Air carrier
Aircraft
N37516
Make and model
Boeing 737
Aircraft serial
43454
Aircraft time
5,588 hours, 1,815 cycles
Part
Skin
Part number
146A3201
Condition
None
Location
Rear Fuselage
Stage of operation
IN
How discovered
O
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

RAMP REPORTED SCRATCH ON LEFT SIDE REAR FUSELAGE 12" FWD OF TOILET SERVICE PANEL. APROX 1/16" DEPTH. AND PERMANENT REPAIR PER PART 3 WITHIN 250 FLIGHT CYCLES (NO LATER THAN 1829 TFC) INTERIM REPAIR COMPLIED WITH IAW ECRA 5330-06968. ACCOMPLISH INSPECTION OF REPAIR PER PART 2 OF ECRA EVERY 100 FLIGHT CYCLES TOMC APPROVED TO ACCOMPLISH INSPECTION PER PART 2 EVERY 100 FC TOMC-APPROVAL FROM SC1ELBYC COMMENT AND PERMANENT REPAIR PER PART 3 WITHIN 250 FC (NO LATER THAN 1829 TFC).IN REFERENCE WITH ECRA 5330-06969 DENT IS LOCATED .5" ABOVE UPPER EDGE OF LOWER SKIN OF LAP JOINT ACCOMPLISHED STEP-4 PER ECRA #5330-06969 HFEC INSPECTION PER 737 CORRECTION ACCOMPLISHED HFEC INSPECTION PER ECRA: 5330-06968 QC 12" FWD OF FWD EDGE OF LAV SVC DOOR ABOVE STG 23L, DENT NDT MANUAL PART-6 51-00-00 PROCEDURE 4 REF TO PART 1 INTERIM STEP #3 NOT #4 PER ABOVE STEP SIGN OFF. DIMENSIONS ARE L=2.5" X W=1.5 & .067" DEEP BEYOND LIMITS IAW SRM REPAIR QC087. 53-00-01-01A FIG103 DETAIL G, SUB- STRUCTURE IS NOT AFFECTED QC REVIEWED. RIR: 100 FC T/A: 250 FC (NO LATER THAN 1829 TFC)...NC/U342507 RECORDS UPDATE PERFORMED AN HFEC PER 737 NDT PART 6 , NO CRACKS DETECTED AT THIS TIME. CRACKS NOTED. C/W EC/RA 5330-06968 PART 2 STEP 1 AND STEP 2. INSPECTED DENT AND REWORKED AREA REF. NDT PART 6, 51-00-00, PROCEDURE 23. NO ACP HFEC IAW NTM PART 6 51-00-00 PROCEDURE 4 NO CRACKS FOUND INSULATION WAS REMOVED AND/OR DISPLACED FOR ACCESS OF INSPECTION WORK PERFORMED AND SIGN OFFS. MARKED. PO 3124757 (TO BE MACHINED