Service difficulty report · Winglet · Boeing 7379

Difficulty date
May 7, 2023
Submitted
May 26, 2023
Operation
Air carrier
Aircraft
N37542
Make and model
Boeing 7379
Aircraft serial
64470
Aircraft time
1,991 hours, 672 cycles
Part
Winglet
Part number
NA
Condition
Damaged
Location
Rt Upper Winglet
Stage of operation
NR
How discovered
9
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

EVIDENCE OF LIGHTNING STRIKE RIGHT UPPER WINGLET 2 LOCATIONS DRAWING SHOWS INTERIOR AND EXTERIOR FACING SIDES FOR DAMAGE LOCATION & SIZE. INITIATED DIP FOR 30 DAYS PERFORMED INTERIM REPAIR WITH TYPE 1 SPEED TAPE OF LIGHTNING STRIKES AFTER FINDING DAMAGE WAS WITHIN ALLOWABLE LIMITS . REFERENCE SRM 57-30-01-1A-3 STEP 5. TABLE 101. PERFORM DAILY INSPECT OF TAPE AND PERFORM PERMANENT REPAIR WITHIN 30 DAYS. PERFORMED PHASE 1 INSPECTION NO FURTHER DAMAGED NOTED OTHER THAN WINGLET ALLOWABLE DAMAGE LIMIT IS 30 DAYS PER SRM 57-30-01-1A-3. QC TO RIGHT UPPER WINGLET.REF AMM 05-51-19-210-802. TEMPORARY REPAIR DAMAGE LESS THAN 1 PLY DEEP REQIRES CLENING WITH SAND PAPER AND TYPE ONE SPEED TAPE.

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