Service difficulty report · Skin · Boeing 757224

Difficulty date
February 2, 2025
Submitted
February 11, 2025
Operation
Air carrier
Aircraft
N21108
Make and model
Boeing 757224
Aircraft serial
27298
Aircraft time
104,237 hours, 25,274 cycles
Part
Skin
Part number
146N8730
Condition
Damaged
Location
Zone 800
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

MOVE TEAM FOUND DAMAGE BELOW L4 DOOR. DAMAGE FOUND APPROXIMATELY 8.5X6.75 INCHES. UPDATING WITH DAMAGE IS AT APPROX. STA. 1650 LH SIDE BETWEEN S19 & S20. PERFORMED STEPS 1 & 2 OF AVO14096. RII INSP C/W OF AVO 14096 REV A STEP 6 - INSURANCE CUT. PERFORMED STEPS 3 & 4 OF AVO14096. AVO 14096 ATTACHED AVO 14096 LAST PAGE (6) ADDED Q/C 894 AVO 14096 REV A ( PART 1 ) ATTACHED. AVO 14096 REV A (PART 2) ATTACHED. Q/C 894 RII VISUAL & NDT INSP C/W PER AVO 14096 REV A STEPS 1-5 & 757 PERFORMED STEP 6 OF AVO14096 REV A. PIC ADDED OF NEW DAMAGE CUT OUT. RII INSP C/W PER AVO 14096 REV A STEP 7 - INTERNAL VISUAL INSP- NDT PT 6 51-00-19. NO ADDITIONAL DISCREPANCIES FOUND. STEP 8 HFEC INTERNAL UNDERLYING STRUCTURE INSP - STEP 9 HFEC OPEN HOLE INSP NO FURTHER DISCREPANCIES NOTED. PERFORMED STEP 10 OF AVO14096 REV A, VERIFIED DAMAGE LOCATION AND SUPERIMPOSED ON ON INSTALLATION DRAWING. PERFORMED REVISION C, STEP 18, HFEC INSPECTION PER BOEING 757 NDT PART 6, 51-00-19, AT THE CHEM-MIL RADIUS FROM THE INTERIOR SIDE 3 INCHES FORWARD AND AFT OF THE SKIN TRIM-OUT. NO CRACKS FOUND. QC121349. VERIFY REPAIR DOUBLER -1 AND REPAIR FILLER -2 AS 2024T3 .0125 PO PREVIOUSLY COMPLIED WITH STEP 19, REV C, REF REV B STEP 9, HFEC 3845043 PER AVO14096 REV 3 PAGE 11 FIG 7. INSPECT OF FASTENER HOLES. AVO 14096 REV C PT 1 ATTACHED AVO 14096 REV C PT 2 ATTACHED AVO 14096 REV C PT 3 ATTACHED. PER AVO 140