Service difficulty report · Skin · Boeing 737900ER

Difficulty date
July 6, 2024
Submitted
July 15, 2024
Operation
Air carrier
Aircraft
N64844
Make and model
Boeing 737900ER
Aircraft serial
42184
Aircraft time
29,251 hours, 10,597 cycles
Part
Skin
Part number
143A3232
Condition
Damaged
Location
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

REF LOG PAGE 8469076 THIS DAMAGE WAS INCORRECTLY MEASURED. DAMAGE WAS ACTUALLY .009 DEEP WHICH IS DEEPER THAN THE ALLOWABLE DAMAGE LIMIT IN THAT AREA. THIS WILL NEED A REPAIR PERFORMED HFEC IAW NDT PART 6 51-00-00 PROC 23 NO CRACK INDICATION FOUND AROUND CUTOUT. TRIMMED OUT DAMAGED FUSELAGE SKIN AREA TO A CIRCULAR DIA.= PER. AVO12861 REV.A. DAMAGE AREA 6, ACCOMPLISHED STEP: 1. THRU 0.750" REF. SRM: 53-00-01-2R-20 REPAIR 20. PARG.4.A-B, READY FOR 3. READY FOR HFEC OPEN FASTENER HOLE INSPECTION PER. STEPS: 4. & HFEC OF TRIM OUT AREA TO ENSURE ALL DAMAGE REMOVED. 5. PERFORMED COUNTERSINK AND HOLE ROTARY SCAN OF FASTENER HOLES NO DEFECTS FOUND REF NDT PT6 53-30-00 SHEET MATERIAL 0.071" 2024-T3 CLAD P.O# 3032853 REF. SRM: 53-00-01-2R-20 REPAIR 20, TABLE: 201 & 202. VERIFIED MATERALS SHEET MATERIAL 0.071" 2024-T3 CLAD P.O# VERIFIED DOUBLER MATERIAL AS 0.080" P.O# 9508405 REF. VERIFIED FABRICATED REPAIR PARTS: [1] & [2] REF. SRM 3032853 REF. SRM: 53-00-01-2R-20 REPAIR 20, TABLE: 201 & 202. OK SRM 53-00-01-2R-20 REPAIR 20, TABLE 201 & 202, IAW GMM 09-25-05. 53-00-01-2R-20 REPAIR 20, PARG. 4. A. THRU G. PROVIDE OK TO TO CONTINUE APPLY CHEMICAL CONVERSION COATING IAW GMM 09-25-05. VERIFIED ORIGINAL SKIN THICKNESS AT REPAIR AREA AS 0.071" NEED TO VERIFY THE DOUBLER MATERIAL AS 0.080" 2024-T3, P.O# FABRICATED REPAIR PARTS: [1] & [2] REF. SRM 53-00-01-2R-20 2024-T3 BY PHYSICALLY MEASURED AND REF. SRM: 53-30-01-1 9508405 REF. SRM 53-00-01-2R-20 REPAIR 20.

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