Service difficulty report · Skin · Boeing 737900ER

Difficulty date
May 15, 2022
Submitted
May 16, 2022
Operation
Air carrier
Aircraft
N38473
Make and model
Boeing 737900ER
Aircraft serial
38702
Aircraft time
28,657 hours, 10,187 cycles
Part
Skin
Part number
143A311116
Condition
Damaged
Location
Str 1&2l
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

LIGHTNING STRIKE AT STATION 500A BETWEEN STRINGERS 1 AND 2L LOCATION MARKED AT RADIUS OF CHEM-MILLED DOES NOT MEET MINIMUM DRILLED PER ENGINEER INSTRUCTIONS SEE PIC. INFO ONLY PER ENG LENGTH AWAY REF SRM 53-00-01-2R-38 REPAIR 38. (SECTION 43 ZONE 1) BLENDING WILL EXCEED ALLOWABLE DEPTH OF DAMAGE. C/W AVO 9001 REV. A STEP 3D AND STEP 4 ACCOMPLISHED HFEC FOR SPO T FACE SURFACE 737 NDT MANUAL PART 6 51-00-00 PROCEDURE # 23 AND ACCOMPLISHED HFEC ROTOPROBE PER 737 NDT PART 6 51-00-00 # 16 FOR OPEN HOLE. NO DISCREPANCIES NOTED. REF AVO 9001 ACOMPLISHED ITEMS 2 THRU 3C. REQUIRES HFEC COMPLETED AVO 9001 REV A. ALL PREVIOUS ITEMS COMPLETED PER REV INSPECTION PER AVO ITM 3D AND 4. A. PRIMED AND PAINTED EXTERIOR RIVET REF AMM 51-21-99. REPAIR TO BE ACCOMPLISHED PRIOR TO 13,254 TOTAL FLT CYCLES. ALL WORK COMPLETED PER ECRA 5330-06829. CREATING DIP PER STEP 7 OF ECRA TO HAVE PERMINENT REPAIR INSTALLED WITHIN 4000 FLIGHT CYCLES. CURRENT FLIGHT CYCLES ARE 9254. THEREFORE, PERMINENT PLACED ON DIP PER STEP 7 OF ECRA TO HAVE PERMINENT REPAIR TOMC-APPROVAL FROM SC1ELBYC COMMENT INSTALLED WITHIN 4000 FLIGHT CYCLES. CURRENT FLIGHT CYCLES ARE 9254. THEREFORE, PERMINENT MORE REPAIR TO BE ACCOMPLISHED PRIOR TO 13,254 TOTAL FLT CYCLES. RECORDS UPDATE RECORDS UPDATE QC QC REVIEWED. T/A: 13,254 TAFC...SN RIR RE-INSPECTED FASTENER FOR SECURITY REF LP 6393055..BOTH WERE INSTALLED AT SAME TIME. CONTINUED ON DIP TOMCQC REV PERFORMED ACCOMPLISHED REPAIR INSTALLATION AND WORK INSTRUCTIONS AT CROWN SKIN STA

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