Service difficulty report · Skin · Boeing 7379

Difficulty date
April 12, 2026
Submitted
April 13, 2026
Operation
Air carrier
Aircraft
N37521
Make and model
Boeing 7379
Aircraft serial
64497
Aircraft time
17,773 hours, 5,914 cycles
Part
Skin
Part number
147A311069
Condition
Dented
Location
Zone 200
Stage of operation
IN
How discovered
V
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

SMALL DENT REPORTED BY CATERING PICTURED BELOW.DAMAGE ON DOOR 2 L LOCATION OF DAMAGE IS AFT OF 2 L DOOR ABOUT 18 INCHES AT STA 1010 AND S-13L FOUND TO BE 2 IMPACTS CAUSING 2 DENTS WITH GOUGES IN THE BOTTOM OF THEM. REMOVED GOUGES REF SRM 53-00-01-1A-1. UPON QC INSPECTION FOUND REMOVED SKIN MATERIAL TO 0.026IN. THIS IS BEYOND SRM ALLOWABLE LIMITS OF 10 PERCENT SKIN THICKNESS OF ORIGINAL 0.071IN SKIN. QC PERFORMED NDT 51-00-00 PART 4 THICKNESS EPOCH 650. DEEPEST AREA OF IMPACT DEPTH MEASURED THICKNESS OF 0.045 SURROUNDING AREA 0.071 TRIM OUT DAMAGE PER SRM 53-70-01-2R-1 REPAIR 1 . NEED TO HFEC INSPECTION ALONG THE EDGE OF THE CUTOUT TO MAKE SURE IS CRACK FREE. C/W STEPS 6 OF AVO 17131 HFEC OF CUTOUT PER NDTM 51-00-00 PROCEDURE 23 NO CRACKS NOTED AT THIS TIME. PERFORMED STEPS 1-5 PER AVO 17131 AND INSURANCE CUT BY .040" PER STP 7. C/W STEPS 1-5 OF AVO 17131 NO OTHER DAMAGE NOTED AT THIS TIME. C/W STEP 7 A,B AND C OF AVO17131. C/W STEP 8 OF AVO17131 MFEC PER NDTM PART 6 53-30-09 NO CRACKS NOTED AT THIS TIME. NEED TO REDO STEP 8 OF AVO17131 STEP WAS ENTERED IN ERROR. PERFORMED AVO 17131 STEPS 9 AND 10. NO DEFECTS NOTED. C/W STEP 9 OF AVO 17131 NO DAMAGE NOTED AT THIS TIME. C/W STEP 10 OF AVO17131 C/W STEP 8 AVO17131 REV A HFEC OF CHEM-MILLED AREA PER NDTM PART 6 51-00-00 PROCEDURE 23 NO CRACKS NOTED AT THIS TIME. ACCOMPLISHED STEPS 5A THROUGH 5E OF AVO 17131. DAMAGE HAS BEEN REMOVED. THERE ARE NO BROKEN, PULLED OR LOOSE FASTENERS. NO HOLES ARE ELONGATED. THERE IS NO DAM3.0 LBS.

More about the Boeing 737-9