Service difficulty report · Skin · Boeing 777224

Difficulty date
December 31, 2025
Submitted
January 2, 2026
Operation
Air carrier
Aircraft
N74007
Make and model
Boeing 777224
Aircraft serial
29477
Aircraft time
121,963 hours, 12,531 cycles
Part
Skin
Condition
Damaged
Location
Zone 100
Stage of operation
DE
How discovered
O
Nature of condition
O
Precautionary procedure
O

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

LIGHTNING STRIKE DAMAGE AT STA 845 AND BETWEEN S-27 - S-28 BETWEEN S-28 AND S-29 ACPD CONDUCTIVITY CHECK ON HEAT DAMAGED AREA. FOUND DAMAGE AREA AVERAGE READING OF 45. READING OF 38 AT POINT OF IMPACT. REMOVED THE EXISTING FASTNERS AND CUT OUT DAMAGED PART OF SKIN IAW SRM 53-00-01-2R-4. ACP HFEC 777 NTM PART 6 51-00-01 PROCEDURE 2. NO CRACKS. ACP HFEC ROTO PBOBE 777 NTM PART 6 51-00-02 PROCEDURE 2. NO CRACKS AT HOLES. MANIFACTURED FILLER. INSTALLED FILLER WASHERS TO THE INITIAL FASTENER LOCATIONS IN REF TO SRM 53-00-01-2R-4 REPAIR 4. INSPECTED REPAIR REF SRM 53-00-01-2R-4. 100% GOOD. COMPLETED INSTALLING REPAIR DOUBLER IAW SRM 53-00-01-2R-4 REPAIR 4. APPLIED FILLET SEAL, PRIMED & PAINTED SURFACE. APPLIED CORROSION INHIBITING COMPOUND REF SRM 53-00-01-2R-4 REPAIR 4.