Service difficulty report · Skin · Boeing 75724APF

Difficulty date
September 14, 2025
Submitted
October 2, 2025
Operation
Air carrier
Aircraft
N441UP
Make and model
Boeing 75724APF
Aircraft serial
27386
Aircraft time
32,149 hours, 20,804 cycles
Part
Skin
Part number
112N310213
Condition
Cracked
Location
Zone 500
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

UPON WORKING EO-88069-REQ047 REV1, TASK CARD T3F18E0054EL6, FOUND EVIDENCE OF POSSIBLE CRACK AT HOLE LOCATION NUMBER 10 L/W UPPR SKIN OF #1 ENG. PYLON. ATA-54-00.PERFORMED BLEND-OUT ON CORRODED AREAS LOCATED AT UPPER FACE SURFACES OF INBD AND OUTB DRAG FITTINGS AND LOWER WING SKIN SURFACE COMMON TO THE DRAG FITTINGS I.A.W. B757-200PF SRM 51-10-02 AND EO-88069-REQ041 STEP 8.FABRICATE SHIMS AS REQUIRED USING MATERIAL 7075-T6-0.050 BTCH#0004416344 AND 7075-T6-.040 BTCH#0004110348 IAW E.O 88069-REQ041 STEP 17.INSTALLED AND VERIFIED TORQUE VALUES AT HOLES#10 #12 #13 #14 #15 AND #16 ON UPPER WING SKIN AREA COMMON TO THE DRAG FITTING IAW B757-200PF SRM 51-40-04-0G-0 AND B757-200 SRM 51-40-02-OG-0

More about the Boeing 757-24APF